-
Georg Fischer Signet offers on-lineinformation and
assistance
Please visit our website at www.gfsignet.com for:Product
information the Products link guides you tothe latest product
details including data sheets andmanuals to assist in product
selection, product installa-tion, calibration and operations.
Manuals are provided inmultiple languages.The Signet Application
Library a collection of typic-al industry applications and
processes with detailedschematics, common measurement requirements
andSignet products to meet those needs.Technical articles A library
of case studies, technicalproduct write-ups and application
solutions, sorted bytechnology and application
1
-
Choosing ProductsSystem Selection GuideThis section provides
tips and suggestions on how tochoose just the right measurement
system for your spe-cific liquid application needs. For specific
product in-formation, refer to the individual catalog sheets.
Step 1: Determine Application RequirementsDefining the following
variables before building your sys-tem will ensure peak performance
from your Signetsensors and instruments.
Measurement rangeInstallation requirementsPipe size and
materialChemical compatibility of all wetted parts to
processchemicals
Systems specifications (such as temperature andpressure)
Performance requirements of sensorFluid particulatesViscosity of
FluidsHazardous location requirements
Step 2: Select Sensor TechnologyBased on the application
requirements determined inStep 1, choose a sensor. For pH/ORP
andConductivity/Resistivity electrodes, select your pre-ferred
connection style. Keep in mind various connec-tion types such as
cable or DryLoc systems. In addi-tion, users may be required to
choose a preamplifier orsensor electronics.Then, determine your
signal output requirement to al-low you to match just the right
instrument (see Step 3).If youre not purchasing an instrument,
select the sensorelectronics package that best suits your
needs.
Step 3: Choose instrumentChoose an instrument. All units are
available in 1/4 DINpanel or field configuration and are available
with eitherdigital, analog, or analog/digital display. Various
retrofitadapters and mounting accessories are also available(see
Accessories section). In cases where the sensorfeeds directly to a
PLC or PC system, Signet offers awide range of instruments and
sensors with 4 to 20 mAoutputs.Note: Please contact your local
Georg Fischer salesand support office if you need assistance in
choosingany one of these products.
Step 4: Determine Installation RequirementsSignet offers a wide
selection of installation fittings forin-line pH/ORP electrodes.
These fittings are specific-ally designed to ensure the proper
placement of theelectrode in the system to achieve optimum
perform-ance. Other pH electrodes as well as all
temperature,pressure and conductivity/resistivity electrodes
usestandard fittings. All submersion electrodes require con-duit
piping and fixtures not supplied by Signet.
Features and Benefits
TurbidityTurbidimeter
Simple to install with mounting holes pre-drilled on acommon
pattern.
Easy and fast to calibrate.Programmable analogue output
signal.Two adjustable alarm relays.Easy access for wiring and
maintenance.Ultrasonic cleaning options ensures long and
steadyon-line measurement.
Simple desiccant pouch keeps the measuring cham-ber dry.
Easy access for replacing desiccant.Standard EPA 180.1 for USA
and Asia. ISO 7027 forEurope.
Quick and easy installation, calibration and mainten-ance.
4150 Turbidimeter
Multi-Parameter Instruments9900 SmartPro Transmitter
Multi-Parameter input selectionLarge auto-sensing backlit
display with at a glancevisibility Dial-type digital bar graph
Intuitive and user-friendly interface consistent withlegacy
Signet ProPoint and ProcessPro devices
Optional field upgradable relaysSelectable error mode for
current outputs, 3.6 mA or22 mA
4 to 20 mA input (with optional 8058 Signal Convert-er)
Warning LED indicatorCustom 13-character label capabilities for
the chan-nel type Factory reset capability
Optional PC COMM configuration toolOptional H COMM module for
two-way communica-tion
2
-
9900 SmartPro Transmitter
ChlorineChlorine Analyser System
Reagent free measuringComplete panel system allows for quick and
easy in-stallation.
Built-in flow regulator maintains constant flow andpressure to
the sensors.
Panel includes a 100-240 VAC power supply, two 4 to20 mA outputs
and two mechanical relays.
Optional automatic pH and temperature compensa-tion.
4630 Chlorine Analyser System
Dissolved Oxygen
Process Optical Dissolved Oxygen SensorOptical DO measurement no
flow requirementsRugged constructionCalibration built into the
measurement cap 2% ofrange 0 to 20 mg/l
One year measurement cap lifeNo membranes or filling
solutionsFlexibel communications, 4 to 20 mA or Modbus(RS485)
Measurement Range: 0 to 20 mg/l
2610 Process Optical Dis-solved Oxygen Sensor
Flow SensorsInsertion Paddlewheel Sensors
Four-bladed paddle design ensures optimal perform-ance and lower
flow rates than five or six-bladed ro-tors that have a higher
weight/bearing inertia.
The open-cell design and the controlled insertiondepth work
together to deliver a linear and repeatableoutput over a wide
dynamic range, with virtually nopressure drop in the process
pipe.
Choice of corrosive resistant plastics and ruggedmetals enable
use in many aggressive fluids.
The widest choice of installation fitting materials, sizesand
connections on the market that meet endless ap-plication needs.
Insertion design lowers installation and maintenancecosts.
Self-powered sensors are well suited for remote loca-tions and
are FM approved which enable installationin hazardous
locations.
Paddlewheel design has no pressure drop, making itideal for
gravity flows.
NIST traceable test certification with all plasticsensors
provides superior price-to-performance ratio.
Hot-Tap designs are available to allow service andmaintenance
without shutting-down the process;saves costly downtime.
3
-
2536PaddlewheelFlow Sensor
525MetalexFlow Sensor
Flow-Through Rotor SensorsOperating flow ranges from 110 mL/min
to 12110mL/min (0.03 US gpm to 3.2 US gpm) in cleanopaque or clear
liquids ideal for precise low flow ap-plications such as
dosing.
Hall-effect devices provide excellent noise immunityoutput
signals.
Sensor body design allows easy access for cleaning,inspection
and rotor replacement without the need forpowering down.
Flexibility with end connections allow flexible tubing orrigid
pipe installations.
Four fully encapsulated magnets provide high resolu-tion signal
output.
2507Mini Flow Sensor
In-line Turbine SensorsSmall compact design for tightly-spaced
installations.Superior ceramic bearing provides long life
withoutthe need for maintenance.
Radio Frequency (RF) pick-up provides added ad-vantage without
rotor drag or contamination from fer-rous particles.
Detachable electronics means sensor maintenance ispossible
without the need to cut power to unit.
Composed of highly chemical resistant materials.Mounting at any
angle offers total installation flexibil-ity.
Wide choice of end connections in hose barb, flare orunion
ends.
Three flow ranges available for optimum measure-ment
resolution.
2100Turbine Flow Sensor
Insertion Magnetic SensorsNo moving parts means no fouling or
reduced wear.Insertion design provides easier installation and
re-moval than full line magmeters.
Model 2551 available to fit all pipe sizes ranging fromDN15 to
DN900 (0.5 to 36 in.).
Model 2552 Metal Magmeter available for pipe sizesup to DN2550
(102 in.). Hot-Tap versions also avail-able.
Fluid diagnostics via LED indicators.Bi-directional flow and
empty pipe detection.Rugged design with good chemi-cal resistance
suit-able for tough applications.
Analog 4 to 20 mA and frequency outputs provide sig-nals to
remote flowmeters and data acquisition. Alsoavailable with digital
(S3L) output for compatibility withmulti-parameter transmitters and
controllers.
High input impedance provides low sensitivity to coat-ing which
makes it ideal for dirty liquids.
Isolated outputs provide barrier to ground loops.
2551Display Magmeter
2552Metal Magmeter
4
-
Analytical Sensors and ElectrodesStandard pH and ORP
Electrodes:
The amplified output ensures the process signal isresistant to
electrical noise and allows up to 120 m(400 ft) before connection
to the instrument.
Longer reference path and larger reference volumemeans extended
service life.
Flat glass surface sensor design. Resistant to foulingand
abrasion in dirty applications, and prevents acci-dental damage to
extend electrode life span.
Unique DryLoc design enables pH and ORP connec-tions
instantly.
Designed to mount in standard Signet fittings or con-nect to 3/4
in. standard fittings.
Option for blind 4 to 20 mA output or digital (S3L)out-put for
long cable runs.
Preamplifier does not need replacing with electrodewhich
significantly reduces service costs.
2724-2726pH/ORP Electrodes
2774-2777pH/ORP Elec-trode
2750pH/ORP SensorElectronics
Differential pH/ORP Electrodes:pH and reference signals are
measured against thirdelectrode, a solution ground, to ensure a
stable read-ing even when the smallest of unknown stray cur-rents
are in the process liquids.
The differential reference is designed to protect thereference
element from Br-, I-, CN-, S- and other harshcompounds that react
with Ag+. Also protects the ref-erence electrolyte from Hg++, Cu+,
Pb+, ClO4 -, or othercompounds that dilute KCl.
Unique DryLoc design is robust and watertight, en-suring rugged
installation.
Designed to mount in 1 in. standard pipe fittings foreasy
installation.
The preamplified output ensures the process signal isresistant
to electrical noise and allows up to 120 m(400 ft) before
connection to the instrument.
Option for blind 4 to 20 mA or digital (S3L) signals forlong
cable runs.
Flat glass surface sensor design that is resistant tofouling and
abrasion in dirty applications.
Large reference volume and replaceable salt bridgeallows the
user to rebuild the reference and extendthe service life of the
electrode.
2764-2767pH/ORPElec-trode
2760Sensor Electronics
Conductivity/Resistivity Electrodes:Flow-through design ensures
continuous measure-ment without air entrapment.
Reversible threaded connections for in-line integralmount or
tank submersion.
Standard parts offer application flexibility for the user.Short
length electrodes available to prevent dead-legs.
Blind 4 to 20 mA output or digital output for long cableruns
beyond 30 m (100 ft), via 2850 sensor electron-ics.
Every sensor uses standard electrical cable. No needto incur
additional costs for patch type cable connec-tions.
NIST calibration certificate available upon request.
5
-
2800Series Electrodes
2839-2842 Con-ductivity Elec-trodes
2850Sensor and Elec-tronics
Temperature, Pressure and Level SensorsTemperature Sensors:
Unibody PVDF construction for use in either high pur-ity or
aggressive fluid conditions.
4 to 20 mA or digital (S3L) signal for long cable runsand choice
of output.
Dual threaded 3/4 in. NPT for easy installation.Options for
integral mounting of instrument directlyonto sensor.
Cable and thread permits conduit for full tank submer-sion.
2350TemperatureSensor
Pressure/Level Sensors:1/2 in. male union process connection to
suit installa-tion needs.
Three pressure ranges to meet specific requirementsand provide
optimal resolution.
4 to 20 mA or digital (S3L) signal for long cable runsand choice
of output.
Unibody PVDF construction for aggressive fluid condi-tions.
Option for integral mounting of instrument directlyonto
sensor.
Configure with 8350 transmitter or multi-parametertransmitters
or controllers to provide full level measur-ing system (hydrostatic
pressure).
Cable end threads permit conduit for full tank submer-sion.
2450 Pressure Sensor
2250 LevelSensor
6
-
Systems4630 Chlorine Analyser System
DescriptionThe Signet 4630 Chlorine Analyser System is an
integ-rated all-in-one system designed to measure free chlor-ine.
The 3-4630-21 chlorine panel with the optional pHsensor is used to
accurately calculate free chlorine inapplications that have varying
pH values (0.20 pHunits).In applications where the pH is stable,
the pH sensor isnot required and the pH value is manually entered
intothe transmitter to calculate the chlorine levels. (-20
ver-sion).The unique integrated clear flow cell combines
sensors,flow regulator, filter and variable area flow indicator
inone compact unit. An integrated flow regulator with re-movable
filter accepts inlet pressures of 1 to 8 bar (15 to120 psi), while
maintaining constant flow and minimalpressure to the sensors.Water
flows vertically into sensor tip eliminates bubbleentrapment. The
flow cell is designed to maintain a min-imum amount of water to
ensure sensors stay sub-merged, even when the system and flow is
turned off.The Signet 4630 Chlorine Analyser System allows
quicksetup and easy installation and is supplied with a 100-240 VAC
power supply, two 4 to 20 mA outputs and twodry contact mechanical
relays. The flow cell accommod-ates two sensors; one chlorine and
an optional pHsensor.
FeaturesEPA 334.0 compliantReagent free measuringComplete panel
system allows for quick and easy in-stallation
Built-in flow regulator maintains contant flow andpressure to
the sensors regardless of inlet pressure
Pre-wired panel includes a 100-240 VAC power sup-ply, two 4 to
20 mA outputs and two mechanical re-lays.
Optional automatic pH and temperature compensa-tion
2630 Amperometric Chlorine Electrode
DescriptionThe Signet 2630 Amperometric Chlorine electrode is
de-signed to measure free chlorine in drinking water andwastewater
treatment applications. The electrodes areavailable with a
measurement range of 0 to 5 ppm. Thiselectrode requires the Signet
2650 Amperometric Elec-tronics module to communicate with the
Signet 8630-3Chlorine Transmitter.Utilizing smart-sensor
technology, this electrode has aunique embedded memory chip and can
communicate awide variety of information to the Signet 2650
electron-ics and Signet 8630-3 Transmitter.
Displayed information includes electrode type,
factorycalibration data, service time, chlorine range, high andlow
pH (with optional Signet pH electrode), temperaturevalues and
more.Signets patented DryLoc connector provides quick as-sembly and
a secure connection. Gold-plated contactsand an O-ring seal ensure
a waterproof and reliable in-terconnect to the Signet 2650
Amperometric Electron-ics. The Signet 2630 Amperometric Chlorine
Electrodehas an integrated temperature element for
automatictemperature compensation.
FeaturesEmbedded memory chip accessible via the Signet8630
transmitter
Quick assembly with Signets patented DryLoc con-nector
Integrated temperature element for automatic temper-ature
compensation
Separate drive electronics (Signet 2650), for easyelectrode
replacement without running new cable
2650 DryLoc Amperometric Electronics
DescriptionThe Signet 2650 Amperometric Electronics provide
thepolarization voltage and signal conditioning required byall
Signet Amperometric Sensors. The 2760 Ampero-metric Electronics
also relays important sensor informa-tion that is stored on a
memory chip inside the sensorand displayed on the 3-8630-3P
transmitter. Informa-tion includes factory calibration data,
service life, calib-ration information and more.Signets patented
DryLoc connector provides a quickand secure connection to the
sensor. Gold-plated con-tacts and an O-ring seal ensure a
waterproof and reli-able interconnect to the sensor.Sensor
maintenance, replacement and troubleshootinghas never been easier.
The DryLoc electronics can beseparated from the sensor, which
allows the user to de-tect a faulty sensor, electronics or cable
assembly.
FeaturesPasses the data stored in sensor to the
Chlorinetransmitter
Patented DryLoc connector provides a quick and se-cure
connection to the sensor
Waterproof and reliable interconnect to the sensorEasy
sensorreplacement without running new cableEasy sensor removal for
servicing
8630 Chlorine Transmitter
DescriptionThe Signet 3-8630-3P ProcessPro Chlorine
Transmittersimultaneously displays free chlorine and pH levels on
abright LCD backlight display.The 8630 transmitter has two 4 to 20
mA outputs thatcan be programed to transmit chlorine, pH or
temperat-ure information to a data collection device.
7
-
Two dry-contact mechanical relays can be used to deliv-er an
alarm signal or activate a chlorine dosing system.Programming is
simple and easy with Signets standard4 button keypad. The menu
option allows the use ofanoptional pH sensor to accurately
calculate free chlorinelevel or select Manual pH input and enterthe
applica-tions stable pH level to determine free chlorine
levels.
FeaturesDisplays free chlorine 0 to 5 ppm (mg/l)Two programmable
4 to 20 mA outputsTwo mechanical relaysTemperature and pH
CompensationDisplays diagnostic information from sensor
memorySimple setup and easy customizationBacklit LCD display
2750-7 pH Electronics
DescriptionThe Signet 2750-7 pH Electronics amplify the
outputfrom the Signet 2724 pH Electrode and output a Digital(S3L)
signal to the Signet 8630 Chlorine Transmitter.Signets patented
DryLoc connector provides a quickand secure connection to the
sensor. Gold-plated con-tacts and an O-ring seal ensure a
waterproof and reli-able interconnect to the sensor.Sensor
maintenance, replacement and troubleshootinghas never been easier.
The DryLoc electronics can beseparated from the sensor, which
allows the user to de-tect a faulty sensor, electronics or cable
assembly.
FeaturesAmplifies the output from the pH electrode to
theChlorine transmitter
Patented DryLoc connector provides a quick and se-cure
connection to the sensor
Waterproof and reliable interconnect to the sensorEasy sensor
replacement without running new cableEasy sensor removal for
servicing
4150 Turbidimeter
DescriptionThe Signet 4150 Turbidimeter system provides
accur-ate and reliable compliant water quality monitoring
formunicipal and industrial applications.The 4150 measures
turbidity via a 90 degree light whichreflects particles as they
flow through a small volume,low flow glass cuvette. Air bubbles are
eliminated fromthe cuvette by adjusting the backpressure valve on
theoutlet tube. The cuvette islocated in a watertight darkchamber
for continuously accurate on-line measure-ment. A replaceable
desiccantpack provides a dry-stable environment to ensure reliable
measurements.Simple and fast calibration can be accomplished in
un-der five minutes by placing the In-line glass cuvettefromthe
measuring chamber into the cuvette holder while stillin service and
the inlet and outlet tubing remains con-nected. The inexpensive
calibrationstandard allows for
dry and multiple system calibrations without mixingchemicals.
After calibration, the unit isup and runningwith simple
re-insertion of the glass cuvette back intothe measuring
chamber.Additional features include a message indicator whenthe
desiccant needs replacing and as an option, auto/ul-trasonic
cleaning of the glass Inline cuvette for longerruns between
maintenance.The 4150 is available in two measuring ranges. The 0
to100 NTU/FNU version is for low range applications suchas drinking
water. The 0 to 1000 NTU/FNU range canbe used for various
applications including raw water andwastewater reclamation.
FeaturesSimple and easy single unit installation with
built-inpressure regulator
Versions compliant with either U.S. EPA 180.1 forNorth and South
America and Asia or ISO 7027 forEurope
Time saving and efficiencies of cuvette technologysimplifies
calibration
Spannable 4 to 20 mA outputTwo adjustable alarm relays Bright
backlit displayConvenient holder for In-line cuvetteEasy access for
wiring and maintenanceUltrasonic cleaning option ensures long and
steadyon-line measurement
Inexpensive standards allow for multiple system
calib-rations
8
-
Multi Parameter Instruments9900 SmartPro Transmitter
DescriptionThe Signet 9900 Transmitter provides a single
channelinterface for many different parameters including
Flow,pH/ORP, Conductivity/Resistivity, Salinity,
Pressure,Temperature, Level and other sensors that output a 4 to20
mA signal. The extra large (3.90 x 3.90) auto-sens-ing backlit
display features at-a-glance visibility thatcan be viewed at 4-5
times the distance over traditionaltransmitters. The highly
illuminated display and largecharacters reduce the risk of
misreading or misinterpret-ing the displayed values. The display
shows separatelines for units, main and secondary measurements
aswell as a "dial-type" digital bar graph.The 9900 is offered in
both panel or field mount ver-sions. Both configurations can run on
12 to 32 VDCpower (24 VDC nominal). The 9900 can also be
looppowered with compatible sensors.Designed for complete
flexibility, plug-in modulesallowthe unit to easily adapt to meet
changingcustomerneeds. Optional modules include Relay,Direct
Conduct-ivity/Resistivity, H COMM and a PCCOMM configura-tion tool.
The unit can be used withdefault values forquick and easy
programming or canbe customised withlabelling, adjustable
minimumand maximum dial set-tings, and unit and decimalmeasurement
choices.
FeaturesMulti-Parameter input selectionLarge auto-sensing
backlit display with at a glancevisibility
Dial-type digital bar graphIntuitive and user-friendly interface
consistent withlegacy Signet ProPoint and ProcessPro devices
Optional field upgradable relaysSelectable error mode for
current outputs,3.6 mA or22 mA
4 to 20 mA input (with optional 8058 SignalConverter)Warning LED
indicatorCustom 13-character label capabilities for the chan-nel
type
Factory reset capabilityOptional PC COMM configuration
toolOptional H COMM module for two-waycommunication
8900 Multi-Parameter Controller
DescriptionThe Signet 8900 Multi-Parameter Controller takes
theconcept of modularity to the extreme. Each 8900 is
fieldcommissioned with the users specified combination ofinputs,
outputs, and relays using simple-to-install modu-lar boards into
the base unit.
Configure the system selecting either two, four or six in-put
channels which accepts any of the Signet sensorsand/or other
manufacturer's sensors via a 4 to 20 mAsignal converter (Signet
Model 8058). To complete yourunit, choose a power module with
universal AC linevoltage or 12 to 24 VDC 10%, regulated.If more
features are needed, analogue output and relaymodules are available
and easily installed. Plus, the8900 will support up to four
additional relays via an ex-ternal relay module.There are other
notable features that the 8900 offers.For instance, digital input
to the 8900 enables longercable runs and simplified wiring with
minimal noise inter-ference. Advanced relay logic allows users to
select upto 3 measurement sources to trigger 1 relay.
Derivedmeasurements include difference, sum, ratio,
percentrecovery, percent rejection, percent passage and BTU.The
menu system can be programmed to display inmulti-languages
including English, German, French,Spanish, Italian and
Portuguese.
FeaturesMeasures Flow, pH, ORP, Conductivity, Pressure,Level and
Temperature
Multi-language display DIN enclosureUp to 4 analogue outputsUp
to 8 relays12 to 24 VDC or 100 to 240 VAC 10%, regulatedpower
Digital communication allows for extended cablelengths and easy
wiring
Accepts 3rd party 4 to 20 mA output devices whenused with 8058
signal converter
Available with 1 to 6 channelsTwo BTU calculations
9
-
Flow515 Rotor-X Paddlewheel Flow Sensors
DescriptionSimple to install with time-honored reliable
performance,Signet 515 rotor-X Paddlewheel Flow Sensors arehighly
repeatable, rugged sensors that offer exceptionalvalue with little
or no maintenance. The output signal ofthe Model 515 is a
sinusoidal frequency capable of driv-ing a self-powered flowmeter
(Model 3-5090). The widedynamic flow range of 0.3 to 6 m/s (1 to 20
ft/s) allowsthe sensor to measure liquid flow rates in full pipes
andcan be used in low pressure systems.The Model 515 sensors are
offered in a variety of mater-ials for a wide range of pipe sizes
and insertion configur-ations. The many material choices including
PP andPVDF make this model highly versatile and
chemicallycompatible to many liquid process solutions. Sensorscan
be installed in up to DN900 (36 in.) pipes usingSignet's
comprehensive line of custom fittings. Thesecustom fittings, which
include tees, saddles, and weldo-lets, seat the sensor to the
proper insertion depth intothe process flow. The sensors are also
offered in config-urations for wet-tap and intrinsically safe
installation re-quirements.
FeaturesOperating range 0.3 to 6 m/s (1 to 20 ft/s)Wide turndown
ratio of 20:1Highly repeatable outputSimple, economical
designInstalls into pipe sizes DN15 to DN900 ( to 36
in.)Self-powered/no external power requiredTest certificate
included for -X0, -X1Chemically resistant materials
525 Metalex Paddlewheel Flow Sensor
DescriptionThe Signet 525 Metalex Paddlewheel Flow Sensor
com-bines stainless steel construction with insertion paddle-wheel
technology. The result is a highly reliable sensorsuitable for
operation at extreme pressures and temper-atures. The Tungsten
Carbide shaft and rulon B (Fluoro-loy B/PTFE) bearing provide
excellent wear resistancefor extended service.A comprehensive
fitting program allows installation instell lines with the
mini-block for small diameters, andeither the mini-tap or saddle
for pipes up to DN300 (12in.). The self-generating output signal
allows use withthe battery operated flow totaliser 8150.
FeaturesFor up to 103 bar (1500 psi @ safety factor 1.5)
pres-sure
For up to 149 C (300 F) temperaturesDN15 to DN300 ( to 12 in.)
pipe rangeSimple installationSelf-powered/no external power
required316 SS body (1.4401)Tungsten Carbide or SS shaft7.6 m (25
ft) cable includeFM approvedOperating range 0.5 to 6 m/s (1.6 to 20
ft/s)
2536 Rotor-X Paddlewheel Flow Sensors
DescriptionSimple to install with time-honored reliable
performance,Signet 2536 Rotor-X Paddlewheel Flow Sensors arehighly
repeatable, rugged sensors that offer exceptionalvalue with little
or no maintenance. The Model 2536 hasa process-ready open collector
signal with a wide dy-namic flow range of 0.1 to 6 m/s (0.3 to 20
ft/s). Thesensor measures liquid flow rates in full pipes and canbe
used in low pressure systems.The Signet 2536 sensors are offered in
a variety of ma-terials for a wide range of pipe sizes and
insertion con-figurations. The many material choices including PP
andPVDF make this model highly versatile and chemicallycompatible
to many liquid process solutions. Sensorscan be installed in DN15
to DN900 ( to 36 in.) pipesusing Signets comprehensive line of
custom fittings.These custom fittings, which include tees, saddles,
andweldolets, seat the sensor to the proper insertion depthinto the
process flow. The sensors are also offered inconfigurations for
wet-tap installation requirements.
FeaturesOperating range 0.1 to 6 m/s (0.3 to 20 ft/s)Wide
turndown ratio of 66:1Open-collector outputSimple, economical
designHighly repeatable outputInstalls into pipe sizes DN15 to
DN900 ( to 36 in.)High resolution and noise immunityTest
certificate included for -X0, -X1Chemically resistant materials
2537 Paddlewheel Flowmeter
DescriptionThe Signet 2537 Flowmeter is the next generation in
flu-id measurement technology from the inventor of the ori-ginal
paddlewheel flowmeter. This sensor is an improve-ment on whats
already an industry standard. It has theadded functionality of
various output options includingflow switch, multi-functional
pulse, digital (S3L) or 4 to 20mA. Additionally, it offers low
flow, low power and high
10
-
resolution and can be configured on-site directly throughthe
built-in user interface.Installation is simple because the Signet
2537 utilizesthe same fittings as the popular Signet 515 and
2536Paddlewheel Sensors and fits into pipe sizes rangingfrom DN15
to DN200 ( to 8 inches). Available inPolypropylene and PVDF, it is
ideal for a variety of ap-plications including chemical processing,
water andwastewater monitoring and scrubber control.
FeaturesDigital (S3L), or 4 to 20 mA outputs or Flow Switch
orPulse output (multi-function)
Allows for up to six sensors to Signet 8900 Multi-Parameter
Controller
Low flow capabilities down to 0.1 m/s (0.3 ft/s)Polypropylene or
PVDF sensor bodiesInstalls into pipe sizes DN15 to DN200 ( to 8
in.)Test certificate included for -X0, -X1Low power and high
resolution
2540 Stainless Steel High PerformancePaddlewheel Flow Sensor
DescriptionThe Signet 2540 Paddlewheel Flow Sensor offers
thestrength and corrosion resistance of stainless steel for li-quid
applications with low velocity measurements.Unique internal
circuitry eliminates the need for mag-nets in the process fluid,
enabling flow measurement of0.1 to 6 m/s (0.3 to 20ft/s) while
maintaining the advant-ages of insertion sensor design. Rulon B
(FluoroloyB/PTFE) bearings and Tungsten Carbide pin provide
ex-ceptional wear resistance.The Signet 2540 offers field
replaceable electronics andtransient voltage suppression (TVS) to
providegreaterimmunity to large voltage disturbances (i.e.
lightning)sometimes encountered in field wiring. Sensors can
beinstalled in DN40 to DN600 (1 to 24inch) pipes usingthe 1 inch or
ISO 7/1-R 1.5 threaded process connec-tion. The sensors are also
offered in a hot-tap configura-tion with a bleed valve service
without process shut-down in pipes up toDN900 (36 in.). Both styles
ofsensors must be used in full pipes and can be used inlow pressure
systems.
FeaturesOperating range 0.1 to 6 m/s (0.3 to 20 ft/s)Field
replaceable electronicsNon-magnetic RF detectionStandard NPT or ISO
process connectionsHot-tap versions for installation/service
without sys-tem shutdown
For pipe sizes up to DN900 (36 in.)Adjustable sensor-one size
for entire pipe range7.6 m (25 ft) cable
3519 Flow Wet-Tap Valve
DescriptionThe Signet 3519 Flow Wet-Tap Valve serves as aunique
interface between the installation fitting and thewet-tap style
Signet 515 or 2536 Rotor-X flow sensor. Itprovides a fast method of
removing the sensor from thepipe under specified operating
pressures. The PVC andstainless steel design of the Wet-Tap makes
it resistantto corrosion and chemical attack by acids, alkalies,
salt,and a number of other harsh chemicals.The Signet 3519 Wet-Tap
Valve mounts directly ontostandard Signet installation fittings.
The 3519 Wet-Tapconsists of a flange and support plate that
threadsontothe pipe fitting insert, and a PVC ball valve
throughwhich an extended length sensor is inserted into
thepipe.
FeaturesAllows sensor removal without process shutdownPressure
release valve for safe sensor removalDual safety lanyardsRugged
corrosion resistant PVC construction andstainless steel
hardware
Compatible with Signet 515 or 2536 Rotor-X Wet-TapFlow
Sensors
Eliminates process downtime
2551 Magmeter Flow Sensor
DescriptionThe Signet 2551 Magmeter is an insertion style
magnet-ic flow sensor that features no moving parts. The paten-ted*
sensor design is available in corrosion-resistantmaterials to
provide long-term reliabilitywith minimalmaintenance costs.
Material options include PP withstainless steel, PVDF with
stainless steel, PVDF withHastelloy-C, or PVDF with
Titanium.Utilizing the com-prehensive line of Signet installation
fittings, sensoralignment and insertion depth is automatic. These
ver-satile, simple-to-install sensorsdeliver accurate
flowmeasurement over a wide dynamic range in pipe sizesranging from
DN15 to DN900 ( to 36 inches), satisfy-ing the requirements of many
diverse applications.Signet 2551 Magmeters offer many output
options offrequency/digital (S3L) or 4 to 20 mA which are
avail-able on both the blind and display versions. The fre-quency
or digital (S3L) sensor output can be used withSignets extensive
line of flow instruments while the 4 to20 mA output can be used for
a direct input toPLCs,chart recorders, etc. Both the 4 to 20 mA
outputand digital (S3L) sensor interface is available for
longdistance signal transmission. An additional benefit is theempty
pipe detection which features a zero flow outputwhen the sensors
are not completely wetted. Also, thefrequency output is
bi-directional while the 4 to 20 mAoutput can be set for uni- or
bidirectional flow using thedisplay or the3-0250 USB to Digital
(S3L)Configuration/Diagnostic setup tool which connects toPCs for
programming capabilities.
11
-
In addition the display version of the 2551 Magmeter isavailable
with relays and features permanent and reset-table totalizer values
which can be stored andseen onthe display. Also, the display
contains multi-languageswith English, Spanish, German, French,
Italian and Por-tuguese menu options.
FeaturesTest certificate included for -X0, -X1, -X2Patented
Magmeter technologyNo moving partsBi-directional flowEmpty pipe
detectionInstalls into pipe sizes DN15 to DN900 (0.5 to 36
in.)Operating range 0.05 to 10 m/s (0.15 to 33 ft/s)Accurate
measurement even in dirty liquidsBlind 4 to 20 mA,
digital/frequency, relay outputNo pressure drop corrosion resistant
materials; PP orPVDF with SS, Hasteloy-C or Titanium
Multi-language display menu available
2552 Metal Magmeter Flow Sensor
DescriptionThe Signet 2552 Metal Magmeter from Georg
Fischerfeatures all-stainless steel construction. The PVDFnosepiece
and FPM O-rings are the only other wettedmaterials. The 2552
installs quickly into standard 1 in.or 1 in. pipe outlets, and is
adjustable to fit pipes fromDN50 to DN2550 (2 to 102 inches). Two
sensor lengthsallow maximum flexibility to accommodate a variety
ofhardware configurations, including ball valves for
hot-tapinstallations.When equipped with the frequency output, the
2552 iscompatible with any externally powered Signet flow
in-strument, while the digital (S3L) output enables multi-channel
compatibility with the Signet 8900 Multi-Para-meter Controller.
Select the blind 4 to 20 mA currentoutput to interface directly
with dataloggers, PLCs ortelemetry systems. Key features include
Empty Pipe De-tection, LED-assisted troubleshooting, and
bi-direction-al span capability (in 4 to 20 mA models).The Signet
3-0250 USB to Digital(S3L)Configuration/Diagnostic Tool is
available to cus-tomize every performance feature in the 2552 so it
canbe adapted to the users application requirements.
FeaturesTest certificate includedAward winning hot-tap magnetic
flow sensor up toDN2550 (102 in.)
Patented Magmeter technologyOperating range 0.05 to 10 m/s (0.15
to 33 ft/s)reliable operation in harsh environmentsRepeatable: 0.5%
of reading @ 25 CThree output options: 4 to 20 mA, Frequency,
Digial(S3L)
ISO or NPT threads
2100 Turbine Flow Sensor
DescriptionEngineered specifically for small pipe diameter
applica-tions, the Signet 2100 Turbine Flow Sensor provides
ac-curate readings in two flow ranges: 0.3 to 3.8 lpm and 3to 38
lpm (0.1 to 1 gpm and 0.8 to 10 gpm).The injection-molded PVDF body
and ceramic bearingsprovide excellent chemical compatibility and
long ser-vice in dosing and batching applications. Union pipingand
tubing connections along with removable NEMA 4Xelectronics allow
for easy assembly and field replaceab-ility. The 2100 can be used
with DN8 ( in.), DN10 (3/8in.), DN15 ( in.) tubing, or DN15 ( in.)
piping forsimple installation. End connections are available inPVDF
for hose barbs, fusion socket or IR/butt fusion,and in PVC for
socket or NPT thread.
FeaturesOperating range of 0.38 to 38 lpm (0.10 to 10
U.S.gpm)
Non-magnetic turbineUnion ends for various connector typesEnd
connector kits for rigid or flexible tubing or DN15( in.) pipe
PVDF & ceramic wetted parts provide superiorchemical
compatibility
For use with both clear and opaque fluidsSmall and compact
design4.6 m (15 ft) cableFeatures removable electronics that
installs froneither side of the sensor
Sensor mounts at any angle
2000 Micro Flow Rotor Sensor
DescriptionThe Signet 2000 Micro Flow Rotor Sensor is
construc-ted of Polyphenylene Sulfide (PPS) which provides
highmaterial strength. The 2000 offers twoflow ranges start-ing at
0.11 or 1.13 lpm (0.03 or 0.3 gpm), for clean pro-cess liquids,
regardless of fluid color or opacity.This sensor can be connected
to flexible tubing or rigidpipe, and uses standard hardware for
mounting. Only-one moving part and a low pressure drop across
thesensor reduces operating costs and maintenancere-quirements.
FeaturesOperating range 0.11 to 12.11 lpm (0.03 to 3.2
U.S.gpm)
Simple mounting in. NPT or ISO threads for simple pipe or
tubingconnection
Measures opaque and transparent liquidsLow pressure dropStandard
cable 7.6 m (25 ft)
12
-
2507 Mini Flow Rotor Sensor
DescriptionThe Signet 2507 Mini Flow Rotor Sensor contains
afree-running rotor that is driven by the fluid flow.Withinthe
given measurement range, the rotational speed ofthe rotor is
proportional to the fluid flow rate.Magnets built into the rotor
trigger an electronic switchin the top of the sensor creating a
square-wave output.Both opaque and transparent fluids can be
measuredwith kinematic viscosities between 0.2 to 20.0
centis-tokes.
FeaturesOperating range 400 to 12,000 ml/m (0.1 to
3.2U.S.gpm)
Detachable signal connector for easy servicingSimple
installation with a G in. ( in. NPT)threaded connection
Standard 7.6 m (25 ft) cablePVDF constructionCompact
assembly
5075 Totalising Flow Monitor
DescriptionThe Signet 5075 Totalizing Flow Monitor features a
tra-ditional analog dial for flow rate at a glance while thebacklit
LCD provides precision flow rate, total volume-and programming
information.Significant features of this 5075 include user
selectableanalog dials, permanent and resettable totalizers
andpulse outputs at sensor frequency and at totalizer scale,The
5075 is powered by virtually any 12 to 24 VDC orVAC 10%, regulated
power source.Connect to any of Signets flow sensors for a
classicflow meter system.
FeaturesPermanent and resettable totalizersTamper proof security
codeNon-volatile memorySimple push-button operationPulse outputs at
sensor frequency and at total volume1/4 DIN, NEMA 4X/IP65Remote
totalizer reset
5090 Sensor-Powered Flow Monitor
DescriptionThe Signet 5090 Sensor Powered Flow Monitor is
thesimplest and most economical instrument in theSignetoffering. It
features a balanced-spring metermovement that is powered by the AC
output of theSignet 515 Paddlewheel Flow Sensor. No additionalpower
sourceis required.
This unique system is suitable for a wide range of flowrates,
and is Factory Mutual (FM) approved for intrinsicsafety without the
need for barriers. Packaged in aDIN housing with a NEMA 4X/IP65
front panel, the 5090is the first choice for simple flow
monitoring, even in themost demanding industrial environments.
FeaturesHigh visibility analog displaySensor-powered flow rate
indication up to 60 m (200ft) from sensor installation
Wide flow range: 1 to 20 ft/s in pipe sizes DN15 toD900 ( to 36
in.)
Single-point calibration from front panelFactory Mutual (FM)
approved for intrinsic safety inClasses I, II and III, Division
I
5500 Flow Monitor
DescriptionThe Signet 5500 Flow Monitor is an instrument
thatcomes fully equipped with all of the basic tools neededfor
monitoring and controlling a flow system. The ana-log dial enables
the user to easily read instantaneousflow rate, while the backlit
LCD is useful for calibration,setup, and displaying totalized flow
volume. The 5500features a standard DIN package and removable
wir-ing terminals. Power the instrument with virtually anystandard
24-volt power supply (AC or DC).Connect any one of Signets wide
array of flow sensors,then consider which output features are best
for yourapplication.Two dry-contact relays can be configured for
High orLow alarm operation, or they can be set to pulse opera-tion
for chemical dosing applications.Use the internally powered 4 to 20
mA output, program-mable from the front keypad, to send the flow
informa-tion to any PLC or data logger.If you use all of these
output features, you still have twomore output pulse terminals, one
at sensor frequency,the other triggered by the totalizer. And just
for addedconvenience, the resettable totalizer can be reset by
aremote hardwired switch, up to 30 m (100 ft), or fromthefront
keypad.
FeaturesPermanent and resettable totalizersTwo programmable
relaysFully scaleable active (internally powered) 4 to 20
mAoutput
Tamper proof security codeNon-volatile memoryIntuitive software
designProgrammable pulse outputs
13
-
5600 Batch Controller
DescriptionThe Signet 5600 Batch Controller provides control
cap-ability and process fine-tuning in a familiar package.
Theprogramming interface uses a four-button keypad andan intuitive
procedure for adjusting a batching system tothe best performance
possible.The standard DIN package houses an analog displaypanel
that features a batch status indicator with count-up or countdown
dials. The backlit LCD displaysflowrate and volume information and
batch status, aswell as calibration and setup instructions. The
front ofthe unit is NEMA 4X/IP65 and is hard-coated,
high-im-pactand UV resistant polycarbonate.The 5600 operates on 12
to 24 volts 10%, regulated,either AC or DC. Removable terminal
connections makewiring the 5600 easy. Connect any Signet flow
sensorwith a frequency output, then add connections to two re-lays
for two-stage shutdown or overrun alarm functions,connect a remote
start-stop switch anduse the end-of-batch pulse to trigger the next
step in the process. A 4to 20 mA output is also available. Advanced
features in-clude a user-set security code,an automatic
calibrationoption, and overrun compensation.
FeaturesPermanent and resettable totalizersNon-volatile
memoryEasy batch volume entryRemote start, stop &
resumeTwo-stage shutdown controlManual or automatic overrun
compensationEstimates time to batch completionOverrun alarm and
missing signal alarmAdvanced valve controlEnd-of-batch
triggerCount-up or count-down to batch completion
8150 Battery Powered Flow Totaliser
DescriptonThe Signet 8150 Battery Operated Flow Totaliser
iscompatible with the Signet 515 and 525 flowsensors,and will
provide years of dependable operation.The large digital display
indicates flow rate and total-ised flow volume simultaneously. One
of the three total-isers is resettable from the front panel or a
remote loca-tion, while the second resettable totaliser can only be
re-set by entering a user-selectable security code. Thethird is a
permanent non-resettable totaliser.Our intuitive software design
and four-button keypadprovide for simple operation while setting
screen dis-plays and programming the system. Calibrationcan
beeasily performed by entering the Auto-Cal feature andentering a
value to match an external reference. Screendisplays can be
modified to suit theusers needs; alongwith the flow rate, any of
the three totalisers can be se-lected as the displayed totaliser.
Customers can quicklyscroll through the totaliserssimply by
pressing any keyon the keypad. A display averaging feature is
included
for applications where the flow in the pipe fluctuates.
Forapplications where flowstops and starts due to produc-tion
needs, a no-flow indicator will display the hours ofnon-flow.
FeaturesThree totalizers:2 resettable and 1 permanent,
userselectable
Long-lasting lithium batteriesMounting versatilityNo-flow
indicatorLarge digital display with averagingSimple push-button
operationUser selectable access code prevents unwantedchanges
Auto-calibration
8550 Flow Transmitters
DescriptionSignet 8550 Flow Transmitters are advanced
instru-ments that convert the signal from frequency and
digital(S3L) flow sensors into a 4 to 20 mA signal for long
dis-tance transmission. Configuration flexibility is maxim-ized
with single or dual input/output, two optional relaysfor process
control, two packaging options forintegral/pipe mount or panel
installation, and scalabilityfor virtually any flow range or
engineering unit. State-of-the-art electronic design ensures
long-term reliability,signal stability, and simple user setup and
operation.
Features2 or 4 wire powerAvailable with single or dual
input/output4 to 20 mA scaleable outputsPermanent & resettable
totalizersRelay options availableNEMA 4X enclosure with
self-healing windowOutput simulation for complete system
testing
14
-
pH/ORP2724-2726 DryLoc pH/ORP Electrodes
DescriptionThe Signet 2724-2726 pH and ORP Electrodes fea-tures
a patented reference electrode design and usesthe unique foul-proof
patented DryLoc connector. Thelarge area PE reference junction and
pathway is con-structed to increase the total reference
effectivenessand ensures long service life.The DryLoc connector
with corrosion resistant goldplated contacts readily connects the
sensor to the mat-ing 2760 preamplifier or the 2750 sensor
electronics.The robust Ryton threaded sensor body and choice offlat
pH, bulb pH, or flat ORP sensing elements providesbroad range of
chemical compatibility for a wide varietyof applications.There are
two optional pH sensing versions available,HF and LC. The HF
version is for applications wheretraces of hydrofluoric acid (2% or
less) will attack stand-ard pH glass in levels of pH 6 and below.
The LC ver-sion can be used for low conductivity fluids 20 -
100S/cm nominal and below 20 S when mounted undercontrolled
conditions.The quick temperature response is available in either
aPT1000 or 3 K temperature sensor and allows com-patibility with
all Signet pH/ORP instruments. The 2724-2726 electrodes are
general-purpose sensors ideal for awide range of applications. The
sensors incorporate inch NPT or ISO 7/1-R 3/4 threads for
installing intostandard pipetees. They can also be mounted
directlyinto Signet standard fittings, DN15 to System OverviewDN100
( to 4 inch).
FeaturesPatented DryLoc connector with gold plated
contactsMounts in Signet standard fittings from DN15 toDN100 ( to 4
in.)
NPT or ISO 7/1-R 3/4 threaded sensors for usewith reducing tees
DN15 to DN100 ( to 4 in.)
Special design allows for installation at any angle,even
inverted or horizontal
Ryton (PPS) body for broad range of chemical com-patibility
Patented reference design for exceptional perform-ance
Quick temperature responseHF resistant glass available for trace
HF of
-
FeaturesDifferential design for stable measurements in themost
aggressive applications
Long service life even in severe or difficult
chemicalapplications
Water-tight DryLoc connector with foulproof gold con-tacts
Porous PTFE reference junctionRebuildable reference
electrodeSolution groundTemperature sensor (pH)Easy sensor
replacement using DryLoc electrodeconnector
Quick temperature responseCompatible with all Signet instruments
and other sup-pliers pH/ORP instruments
3719 pH/ORP Wet-Tap Assembly
DescriptionThe Signet 3719 pH/ORP Wet-Tap allows installationand
removal of pH or ORP electrodes, even under pro-cess pressure,
without the need for process shutdownduring routine electrode
maintenance and calibration.Automatic process isolation is achieved
during elec-trode retraction with a double O-ring seal on a
uniqueand compact retraction assembly; no separate valve
isrequired. A patented cam-activated automatic lockingmechanism,
SafeLoc, and the short stroke designhelp to assure operator safety.
The wet-tap unit can bemounted at any angle and can be used with
the SignetDryLoc Wet-Tap electrodes.
FeaturesElectrode removal without process shutdownSpace saving
45 mm (1.75 in.) short-stroke designSealed pneumatic dampening for
smooth and safeoperation
SafeLoc: Cam- activated automatic locking mech-anism
Protects electrode sensing surface from breakageSuitable for
mounting in any orientationProcess threaded connection NPT or
ISOLow profile clampon saddle fittings for convenient in-stallation
in ASTM pipe sizes 2 to 12 in.
2750 DryLoc pH/ORP Sensor Electronics
DescriptionThe Signet 2750 pH/ORP Sensor Electronics
featuringthe DryLoc connector, provides a variety of functions
tosuit various requirements.The 2750 has a preamplified signal and
features two dif-ferent outputs: a two-wire 4 to 20 mA loop output
withEasyCal function or a digital (S3L) output which allowsfor
longer cable lengths and is compatible with theSignet 8900
Multi-Parameter Controller.
The 2750 self-configures for pH or ORP operation viaautomatic
recognition of the electrode type. The option-al EasyCal feature
allows simple push-buttoncalibrationand includes an LED indicator
for visual feedback.The DryLoc electrode connector quickly forms a
robustassembly for submersible and in-line installations.NEMA 4X
junction enclosures are integralparts of the2750 in-line version
and are also available as accessor-ies for the submersible 2750.The
2750 submersible preamplifier can also be used asan In-line
preamplifier when used with the 3/4 or 1threaded sensors including
the 2724, 2774 and 2764series electrodes. The 2750 In-line
preamplifier can beused with Signet fittings up to DN100 (4 in.)
and wet-tapassemblies.
FeaturesIn-line integral mount and submersible installation
ver-sions
Automatic temperature compensationAuto configuration for pH or
ORP operationOptional EasyCal calibration aid with automatic
bufferrecognition
Junction boxes for convenient wiring
2760 DryLoc pH/ORP Preamplifiers andConnectors
DescriptionThe Signet 2760 pH/ORP Preamplifiers features
theDryLoc connector, providing a robust connection toSignet DryLoc
electrodes.The 2760 preamplifier allows any DryLoc pH/ORP
elec-trode to work with Signet ProcessPro and ProPointpH/ORP
instruments. It is also sold as a simple connect-or for use with
other manufacturers instruments that donot require a preamplified
signal.The DryLoc electrode connector system quickly forms arobust
assembly for submersible and in-line installa-tions. NEMA 4X
junction enclosures are to extend thepreamplifier cable to long
distances.The 2760 submersible preamplifier can also be used asan
In-line preamplifier when used with the in. or 1 in.threaded
sensors including the 2724, 2774 and 2764series electrodes. The
2760 In-line preamplifier can beused with Signet fittings up to
DN100 (4 in.) and wet-tapassemblies.
FeaturesIn-line integral mount and submersible installation
ver-sions
Automatic temperature compensationAuto configuration for pH or
ORP operationJunction boxes for convenient wiring
5700 pH/ORP Monitor
DescriptionThe Signet 5700 pH/ORP Monitor is a versatile and
in-telligent instrument that recognizes the type of
sensorconnected, either pH or ORP, then automatically sets it-
16
-
self for the corresponding display and functionality.
Also,during EasyCal operation, the monitor automatically
re-cognizes standard buffers/test solutions, thereby short-ening
and simplifying routine calibration procedures.Two programmable
relays and one scaleable 4 to 20mA output are included, and the
four-button keypad ar-rangement with intuitive software design is
very user-friendly. The monitors require 12 to 24 volts 10%,
reg-ulated, AC or DC, and can be used with many SignetpH/ORP
electrodes and preamplifiers, or with elec-trodes from other
manufacturers by using the 2721Preamplifier. Several useful
accessories are available,including the optional splashproof rear
cover kit.
FeaturesDisplays pH/temp/mV or ORP/mVEasyCal simplifies routine
calibrationSimple push-button operationIntuitive software
designScaleable 4 to 20 mA output internally powered (act-ive)
Two programmable relaysDual proportional control
capabilityNon-volatile memoryVersatile low voltage power
requirement
8750 pH/ORP Transmitters
DescriptionThe Signet 8750 pH/ORP Transmitter is designed
forbroad application and ease of setup and use. The
unitautoconfigures for either pH or ORP use when connec-ted to
Signet pH or ORP electrodes. Multiple mountingoptions allow for
installation best suited to your particu-lar application. The
EasyCal menu features automaticbuffer recognition for mistake-proof
pH or ORP elec-trode calibrations. Intuitive software and the four
buttonkeypad arrangement make it easy to access
importantinformation such as pH or ORP, mV input,
temperature,calibration, relay setup menus and more.
FeaturesAutomatic temperature compensationTemperature display in
C or FHold and simulate functionsRelay options availableOutput
scaleabilityOptional Dual outputNEMA 4X/IP65 enclosure with
self-healing windowEasyCal option available
17
-
Conductivity/Resistivity2819-2823
Conductivity/ResistivityElectrodes
DescriptionSignet 2819-2823 Conductivity/Resistivity
Electrodesare designed to provide versatile installation and
accur-ate sensing across a very broad dynamic range.
Theseelectrodes are built with a controlled surface finish to
en-sure accuracy and repeatability. The standard electrodeis
constructed 316 SS or Titanium, but there are othermaterials
available for maximum chemical compatibility.Reversible threads or
sanitary flanges allow for maxim-um installation versatility.
Sanitary flange versions areavailable with an optional NIST
Traceability Certificateto meet USP requirements. Coupled with
Signet paten-ted measuring circuitry, a three decade
measurementrange is achieved without the need for
troublesomeelectrode platinization. A platinum RTD (PT1000)
loc-ated within the electrodeallows optimal temperaturesensing.
FeaturesStandard process connections- in. NPT Polypro- Tri-clamp
1-1 in., 2- Opt. in. NPT 316 SS
316 SS or Titanium standard electrodeAlternative electrode
materials available- Hastelloy-C- Monel
In-line or submersible mountingNIST traceable certified cells 1%
meet USP require-ments
2839-2842 Conductivity Electrodes
DescriptionThe Signet 2839-2842 Conductivity/Resistivity
Elec-trodes are available in four cell constants from 0.01 to10.0
cm-1, and are suitable for a wide variety of applica-tions from
high purity water quality monitoring to weakacids and bases. 316 SS
electrode surfacefinishes arecontrolled in a precision bead
blasting operation to en-sure measurement accuracy and
repeatability. ThePEEK insulator and processconnections are
injectionover-molded to minimize variance between electrodes.Double
threaded connections in either in. NPT or ISO7/1-R 3/4 enable quick
and easy installation in submers-ible or in-line configurations.
Transmitter integral mount-ing kit and junction boxes are available
as accessories.
FeaturesDual-threadedCompact electrode length for easy in-line
installationin small pipe sizes
Triple orifice flow through design reduces cloggingand bubble
entrapment
316 SS electrodes with injection molded PEEK pro-cessconnections
and insulators
Cell constants may be traceable to NIST and certifiedto within
1% of value - meets USP requirements
2850 Conductivity/Resistivity SensorElectronics and Integral
Systems
DescriptionThe Signet 2850 Conductivity/Resistivity Sensor
Elec-tronics are available in various configurations for maxim-um
installation flexibility. The universal mount version isfor pipe,
wall, or tank mounting and enables single ordual (digital versions
only) inputs using any standardSignet conductivity/resistivity
sensor. The threaded j-boxversion can be used with these same
Signet sensors forsubmersible sensor mounting. It is also available
as acombined integral system configuration for in-linemounting and
includes a conductivity electrode in achoice of 0.01, 0.1, 1.0, or
10.0 cm-1 cell constants. The2850 is ideal for applications with a
conductivity range of0.055 to 400,000 S or a resistivity range of
18.2 M to10 k.All 2850 units are available with a choice of two
outputs,digital (S3L) or 4 to 20 mA. The digital (S3L) output
ver-sion allows for up to six sensor inputs directly into theSignet
8900 Multi-Parameter Controller. The two-wire 4to 20 mA output
version is available with eight 4 to 20mA output ranges for each
electrode cell constant. Eachrange can be inverted and are field
selectable.All 2850 units are built with NEMA 4X/IP 65
enclosureswhich allow output wiring connections with long cableruns
of up to 1,000 feet (305 m). EasyCal is a standardfeature that
automatically recognizes conductivity testsolution values for
simple field calibration. A certifica-tion tool is available for
validation of the sensor electron-icsaccording to USP
requirements.
FeaturesIntegral mount systems for quick and easy
installationCompact design for maximum installation
flexibilityDigital (S3L) interface or two-wire 4 to 20 mA
outputEasyCal with automatic test solution recognitionDual channel
unit available for low cost installationwith Signet 8900
Multi-Parameter Controller
For use with ALL Signet conductivity electrodes
5800CR Conductivity/Resistivity Monitor
DescriptionThe Signet 5800CR ProPoint
Conductivity/ResistivityMonitor features a unique analog/digital
display, makingit the preferred measurement instrument for
applica-tions requiring routine monitoring.The digital
displayguides the user through the simple menu system and
18
-
provides precision information, while the analog dialserves as a
quick, at-a-glanceindicator of the measure-ment process.The 5800CR
offerstwo fully programmable dry contactrelays and a 4 to 20 mA
current. The monitor requires12 to 24 VAC or VDC 10%, regulated and
is packagedin a convenient DIN, NEMA 4X/IP65 front panel.
Theenclosure is hard-coated, high-impact, UV
resistantpolycarbonate.In addition to programmable outputs and
relays, the unitcan also be set up to measure raw
conductivityvalues,meeting USP requirements.
FeaturesDisplay units: S, mS, k, M, PPM (TDS)Temperature
compensationTwo programmable relaysDual proportional control
capabilityScaleable 4 to 20 mA outputSimple push-button
operationIntuitive softwareNon-volatile memoryCompatible with ALL
Signet conductivity electrodes12 to 24 VAC or VDC powerNEMA
4X/IP65
5900 Salinity Monitor
DescriptionThe Signet 5900 Salinity Monitor utilizes
conductivitysensors to provide direct reading, including
calibration,of salinity in parts per thousand (PPT). Equippedwith
ascaleable 4 to 20 mA output and two programmable re-lays, the
monitor requires 12 to 24 volts, 10%, regu-lated, AC or DC, and is
compatible with Signet 10 cm-1or 20 cm-1 conductivity
cells.Temperature is selectablefor display in either C or F, and
compensation is auto-matic.Calibration is simplified with
single-point salinity andtemperature entry via the wet-cal menu
sequence. Thefour-button keypad arrangement with intuitive
softwaredesign is user-friendly, and is offered with a hard-coated,
high impact, and UV resistant polycarbonatefront face. The front
panel is rated NEMA 4X/IP65 andan optional splashproof cover is
available to protect theback of the instrument.
FeaturesDirect reading and calibration in PPTDual proportional
control capabilityScaleable 4 to 20 mA output (active)
internallypowered
Two programmable relaysTamper-proof security codeAnalog and
digital displayNon-volatile memoryCompatible with ALL Signet
conductivity electrodesVersatile low voltage power requirementNEMA
4X/IP65
8850 Conductivity/Resistivity Transmitters
DescriptionThe Signet 8850 Conductivity/Resistivity Transmitter
isdesigned for multiple installation capabilities, simple set-up
and easy operation, thus satisfying a broad range ofapplication
requirements.Full microprocessor based electronics allow for a
wideoperating range and long term signal stability in
threedifferent instrument versions: the 8850-1 for a tradition-al
two-wire current loop, the 8850-2 features currentloop plus two dry
contact relays, or the 8850-3 with two-wire current loop, one
sensor input signal and two cur-rent loop outputs. The 8850 is
offered with a NEMA4X/IP65 front panel with a self-healing window
in a con-venient DIN package for easy mounting. The 8850can be
configured via a simple menu system.In addition to programmable
outputs and relays, the unitcan also be set up to measure raw
conductivity values.
FeaturesDisplay choices of S, mS, K, M, PPM (TDS)Simulate
functionProgrammable temperature compensationRelay and open
collector optionsDual output option allows temperature and
processsignal transmission
NEMA 4X/IP65 enclosure with self-healing windowCompatible with
ALL Signet conductivity electrodes
8860 Two-Channel Conductivity/ResistivityControllers
DescriptionThe Signet 8860 Two-Channel
Conductivity/ResistivityController is packed with a set of features
and capabilit-ies ideal for the real needs of water treatment
applica-tions. It accommodates two separate and independentinput
sources and can be powered with AC/DC voltage.The 8860 programs via
a simple and intuitive menu sys-tem. The unit can also be
programmed to measure araw conductivity value by turning off the
temperaturecompensation mode.
19
-
To control the process, the 8860 is equipped with fourdry
contact relays and three 4 to 20 mA output loops.Calculated
measurement include Difference, Ratio or %Rejection. Two of the
relays may be converted into opencollector outputs with the flip of
a switch. Operatingmodes for the relays and open collector outputs
arehigh, or low alarm, pulse, or special USP alarm mode.The 8860 is
offered with a NEMA 4X/IP65 front panelwith a self-healing window
in a DIN package for easypanel installation.
FeaturesMeets USP requirements for measuring raw conduct-ivity,
USP alarm mode
Dual sensor inputAC or DC poweredDisplay and/or control: S, mS,
PPM or PPB (TDS),k, M, % rejection, difference, ratio,C or F
Three fully scaleable 4 to 20 mA outputsTwo open collector
outputsFour programmable relaysTime delay relay
functionProportional pulse control capabilityCompatible with ALL
Signet conductivity electrodesProgrammable temperature
compensationNEMA 4X/IP65
20
-
Temperature/Pressure/Level2250 Submersible Hydrostatic
PressureSensor
DescriptionThe Signet 2250 Hydrostatic Level Sensor for level
anddepth control has a one-piece injection molded PVDFbody and
ceramic diaphragm for superior compatibilityin corrosive liquids.
Utilizing hydrostatic pressure, the2250 disregards false level
signals from steam vapors,foam or any other debris on the liquid
surface. Twopressure ranges allow for optimal resolution matched
toyour sensing needs. Solid state circuitry eliminates drift(no
internal potentiometers).Built-in temperature compensation provides
outstand-ing accuracy over wide temperature ranges. Thesesensors
are available with a proprietary digital output(S3L), or 4 to 20 mA
output. The extended cable and ca-pillary tubing with the union
connection and a customersupplied conduit, allow submersion in
process vessels.
FeaturesLevel and depth measurement4 to 20 mA or digital (S3L)
outputFlush ceramic diaphragmEasy submersible installationChoice of
two pressure rangesStandard union connection and extended cable
andcapillary tubing (10 m)
2350 Temperature Sensor
DescriptionThe Signet 2350 Temperature Sensor has a one
pieceinjection molded PVDF body that is ideal for use in highpurity
applications. It also outlasts metal sensors in ag-gressive liquids
and eliminates the need for costly cus-tom thermowells. These
sensors are available with aproprietary digital output (S3L) or
field-scaleable 4 to 20mA output.Dual threaded ends ( in. NPT)
allow submersion inprocess vessels, or in-line installation with
conduit con-nection. An integral adapter kit (sold separately) may
beused to create a compact assembly with field mount ver-sions of
the Signet 8350 Temperature Transmitter.
Features4 to 20 mA or digital (S3L) outputStandard in. NPT
process connectionOne-piece injection molded PVDF bodyPT1000
platinum RTD in extended tip for quick re-sponse
Easy installationThreaded for in-line or submersible
installation
2450 Pressure Sensor
DescriptionThe 2450 Pressure Sensor has a one-piece
injectionmolded PVDF body and ceramic diaphragm for
superi-orcompatibility in corrosive liquids. Three pressure
ver-sions allow for optimal resolution matched to your sens-ing
needs. Solid state circuitry eliminates drift (no intern-al
potentiometers). Built-in temperature compensationprovides
outstanding accuracy over widetemperatureranges.These sensors are
available with a proprietary digitaloutput (S3L), or fieldscaleable
4 to 20 mA output. Dual-threaded ends allow submersion in process
vessels, orin-line installation with conduit connection. Integral
ad-apters (sold separately) may be used to create a com-pact
assembly with a field mount version of the Signet8250 Level or 8450
Pressure Transmitter.
FeaturesTest certificate included4 to 20 mA or digital (S3L)
outputStandard in. NPT or in. male union process con-nection
One-piece injection molded PVDF bodyFlush ceramic diaphragmEasy
installationChoice of three pressure rangesPressure or level
measurement
8250 Level Transmitters
DescriptionSignet 8250 Level Transmitters are compatible with
theSignet 2250 Level sensor and 2450 Pressure Sensor.The instrument
is available in field and panel mountconfigurations, single or
dual-channel input andequipped with one 4 to 20 mA output, fully
scale-ableand reversible for each input channel. The unit
alsofeatures two relays, plus the ability to support two
addi-tional externally mounted relays (for a total offour). Re-lay
operation is selectable for High, Low, Window or Off,and includes
fully adjustable hysteresis and trigger timedelay. The unit also
has the abilityto accept other levelsensors with 4 to 20 mA output
via the Signet 8058 Sig-nal Converter. Automatic level-to-volume
conversion al-lows display and control of tank volume and/or level
inunits such as gallons, kilograms, feet or meters. Simplyenter the
dimensions of yourtank or vessel, and the in-strument will
calculate volume from the level measure-ment.
21
-
FeaturesLevel units for: ft, in., m, cm, %Volume units for:
gal., in3, lbs., l, m3, kg, %Available with single or dual
inputAdvanced relay control supports up to 4 relaysOutput
simulationManual (up to 10 pts.) and automatic level to-
volumeconversion
Display level, volume or bothSpecific gravity entry for use with
pressure sensorsand mass unit conversion
User-selectable averaging for display and outputAccepts other
level sensors with 4 to 20 mA output(via 8058 signal converter)
NEMA 4X/IP65
8350 Temperature Transmitters
DescriptionThe Signet 8350 Temperature Transmitter offers local
orremote display with current and relay outputs. This mod-el offers
exceptional repeatability and accuracyover awide operating
temperature range.Configurations in-clude open collector outputs or
mechanical relays withstatus indicators for process control or
alarming. Theunit also has the ability to accept other
temperaturesensors which have 4 to 20 mA output via the Signet8058
Signal Converter. The chemical resistant NEMA4X/IP65 front face is
found on both the highly visiblefield mount or black panelmount
instruments with a self-healing window and a standard 1/4 DIN
cutout. Dual in-put version allows difference calculation (T) and
offerscost savingswith independent dual outputs. All modelsoffer an
output simulation function for complete systemtesting.
FeaturesDigital (S3L) input for stable & reliable
readingAvailable with single or dual inputField scaleable 4 to 20
mA outputDisplays temperature and mA outputTemperature display in
degrees Celsius (C) orFahrenheit (F)
Choice of relay or open collector outputNEMA 4X/IP65
8450 Pressure Transmitters
DescriptionThe Signet 8450 Pressure Transmitter is a unique
in-strument that offers local or remote display with currentand
relay outputs. This model offersexceptional repeat-ability and
accuracy over a wide operating pressurerange. The instrument is
available in field and panelmount configurations, single ordual
channel input and isequipped with a 4 to 20 mA output, fully
scaleable andreversible for each input channel. Configurations
in-
clude open collectoroutputs or relays with status indicat-ors
for process control or alarming.The unit also has the ability to
accept other sensors with4 to 20 mA output, via the Signet 8058
Signal Convert-er. The chemical resistant NEMA 4X/IP65 frontface
isfound in both the highly visible field mount or black pan-el
mount instrument, both featuring a self healing win-dow, a standard
DIN cutout and large push buttonsfor easy navigation. Programming
capabilities are avail-able for single point calibration, setting
of relays andoutputs, and output simulationfunction for complete
sys-tem testing. The dual input version allows difference
cal-culation (P) and offers significant cost savings with
in-dependent dualoutputs.
FeaturesDigital (S3L) input for stable and reliable
readingAvailable with single or dual sensor inputPressure can be
displayed in psi, bar or kPaField scaleable 4 to 20 mA outputChoice
of relay or open collector outputNEMA 4X/IP65Chemical resistant
enclosure and self-healing window
22
-
Other Products0250 USB to Digital (S3L)Configuration/Diagnostic
Tool
DescriptionThe new 3-0250 USB to (S3L)
configuration/diagnostictool interfaces with Signets various
digital sensors to al-low users to select all parameters available
for modifica-tion, monitor the sensors data on the PC/Laptop, or
logthe sensors data to a file. Multilanguage Software inEnglish,
German, French, Italian, Portuguese and Span-ish.
FeaturesUser-friendly interfaceConfigure blind sensorsConfigure
all modifiable parameters in the sensorMonitor sensor data or log
sensors data to a fileMonitor mV and Temperature reading in
pH/ORPsensors
Graph sensor dataRed and Blue LED indicators for power and
datatransmission
6 ft USB extension cable
6400 Intrinsic Safety Barriers
DescriptionGeorg Fischer Signet offers singlechannel
intrinsicsafety barriers foruse with the 515 and 525
paddle-wheelflow sensors.Both versions use a inch wide housing
which snapsdirectly to a 35 mm DIN rail. Once mounted, an
electric-al connection is formed between the barrier and the
rail.The rail serves as the intrinsic safety ground bus
whenconnected to the designated grounding point. Two addi-tional
ground lugs are provided andmay be used as aredundant grounding
method or for terminating shields.Each barrier also contains a
replaceable 160 mA fusecartridge for each channel. Safety barriers
are polaritysensitive devices and are available in +DC and
AC-voltage ratings.
FeaturesOne step, snap-on 35 mm DIN rail mounting
andgrounding
Replaceable 160 mA fuseLowest internal resistanceCommon in. wide
housing for single channel ver-sions
Short-circuit proof connectionsFM, UL, CSA approvedCompatible
with Signet 515 and 525 flow sensors
7300 Switching Power Supplies
DescriptionSignet 7300 Switching Power Supplies provide
regu-lated output voltage in compact and lightweight
plastichousings that can be DIN Rail or surface mounted. Theseries
includes five different outputcapacities from 300mA to 4.2 A (7.5W
to 100W), all of which accept univer-sal AC line voltage input and
meet worldwide standardsfor performance and safety. These units
meet the powerrequirements for a single system, multiple Signet
instru-ments or other devices requiring 24 VDC operation.
FeaturesRegulated 24 VDC output voltageFive output capacities:
300 mA, 600 mA, 1.3 A, 2.1 Aand 4.2 A
DIN rail or surface mountUniversal AC input (85 to 264 VAC)DC
compatible input (105 to 370 VDC)Fused inputAuto resetting output
overcurrent protectionUnique spring-up, finger-safe
terminalsShort-circuit protectionOutput voltage adjust (+/-
10%)Light-weight plastic housing
i-Go 8058 Signal Converter
DescriptionThe Signet i-Go 8058 Signal Converter accepts any 4to
20 mA signal and converts it into the Signet digital(S3L) format,
the serial data format used by the Signet8250, 8350, 8450 and 8900
instruments. When usedwith the 8900 Multi-Parameter Controller, the
measure-ment type and operating range are defined in the 8900setup
menu. When used with level, temperature andpressure transmitters,
the 8058 is configured at the fact-ory to the users
specifications.The wire-mount single-channel version is easily
moun-ted anywhere in the interconnecting wiring between thesensor
and the instrument.The DIN rail mounted dual-channel version can
convert one or two separate 4 to 20mA inputs into a digital
(S3L)output.
FeaturesConnects with level, temperature, pressure and
multi-parameter Signet instruments and other manufactur-ers
transmitters
Up to two 4 to 20 mA sensor inputsConnects additional
measurement parameters toSignet 8900 Multi-Parameter instrument
Wire or DIN rail mountable
23
-
8059 External Relay Modules
DescriptionSignet 8059 External Relay Modules supplement
theoutput capabilities of certain host instruments such asthe
Signet 8900 Multi-Parameter Controller. AC-powered versions accept
universal line voltage, andalso provide 24 VDC output that can be
used to powerthe host instrument or other device(s).The host
instrument controls relay operation by way of asingle digital (S3L)
connection. The compact plastichousing is DIN rail mountable and
includes LED annun-ciators for each relay, plus one each for
power-on anddata transfer or test mode.
FeaturesExternal relays controlled by host instrumentAC and DC
powered versionsDC power output (AC versions)DC power passthrough
(DC versions) to simplify wir-ing
Digital (S3L) passthrough to simplify sensor wiringRed LED
annunciators for each relayGreen LED indicators for power and
digital (S3L) datatransfer
Relays may be tested locally, and also via the host
in-strument
24
-
Calibration AccessoriespH/ORP Buffer Solutions
DescriptionThe Signet pH buffers are ideal for many calibration
re-quirements. The liquid solutions are conveniently pack-aged in
one pint bottles; the powder pillows are pack-aged in low weight,
single-use containers which can bemixed with water. All pH buffers
are color coded foreasy identification; 4.01 pH is red, 7.00 pH
isyellow, and10.00 pH is blue.The pH buffers are traceable to NIST
standards andcertificates are available upon request. They are
accur-ate to within 0.01 pH units @ 25 C and have longterm
stability.These solutions are temperature sensitive and areprovided
with temperature correction values for the mostaccurate
calibration. For applications that requireORPcalibration, the pH 4
and pH 7 buffers can be mixed withquinhydrone powder for the
correct measurement val-ues of +87 mV and +264 mV respectively.
FeaturesNIST TraceableEasily identifiable color coded buffer
solutionsLiquid or powder versionsTemperature compensated
valuesKits for easy use
Calibration Kits for 4150 Turbidimeter
DescriptionThe Calibration Standard kits contain fluids in
specialcuvette bottles that are used to compare the clarity ofthe
process water against the standard to calibrate thet-urbidity
instrument. The standard kits come in two pre-mixed, calibrated
ranges.The 0-100 version is generally used for measuring
theturbidity of clean, potable water applications. The 0-1,000
version is used to measure water that has aturbid-ity which may
exceed 100, such as water in a reclama-tion plant.
FeaturesStable pre-mixed standards that are certified
accurateSealed calibration cuvettesShelf life - 1 yearEasy to
follow instructionsKits for easy use
Formazin Stock Kit for 4150 Turbidimeter
DescriptionThe Formazin Stock kit contains all chemicals and
in-structions to dilute/ mix calibration standardsbetween1.0 and
1980 NTU/FNU. The Formazin Stockkit can be used to calibrate third
party turbidity instru-ments as well as the Signet 4150
Turbidimeter.
FeaturesTurbidity standard for most any valueThree different
graduated pipettes includedFour glass cuvettes with light shield
capsEasy to follow instructions
2759 pH/ORP System Tester
DescriptionThe Signet 2759 pH/ORP Simulator is a battery-powered
millivolt generator that simulates pH values of4, 7 and 10, plus
ORP values of 700 mV. This deviceis useful as a troubleshooting aid
and for general verific-ation of system operation. It is not a
substitute for peri-odic system calibration with pH buffers or
testsolutions.Accessory adapter cables (sold separately) enable
the2759 to connect directly to Signet 2760 preamplifiers,or2750
pH/ORP Sensor Electronics. The adapters in-clude a selector switch
for pH (3K or PT1000 Temperat-ure Compensation) or ORP simulation.
The switch trig-gers automatic sensorrecognition software in
SignetpH/ORP instrumentation.
FeaturesBattery powered millivolt generatorSimulates pH and ORP
valuesHigh impedance input simulates preamplified signalVerifies
system functionalityCompatible with 2750 and 2760
preamplifiersConnects to any Signet pH/ORP instrumentVerifies
preamplifier or instrument electronics
Conductivity/Resistivity Tools
DescriptionThe Signet conductivity/resistivity tools are
available forcertification or validation of electronics that are
inde-pendent of the electrode. Because there are no avail-able
liquid standards for calibration in lowconductivityand resistivity
applications, these tools are ideal for vari-ous installations. All
tools are built to conform to theASTM D 1125-95 Standard
(StandardTest Methods forElectrical Conductivity and Resistivity of
Water), whichis also commonly used for USP 24 applications.Signet
tools simulate, within 0.1% precision(accuracy), various values:
1.0 S, 2.5 S, 10.0 S,10.0 M, 18.2 M. These tools also temperature
com-pensated to 25 C and enable the user to accuratelyvalidate or
certify the electronics.Model 2830 can be used with Signet Models
5800CR,8850, and 8860 instruments. The 2850-101-X simulat-ors are
used with the Model 2850 electronicsand simplyplugs into the same
terminals as the sensor cables.
25
-
FeaturesSimulates five different valuesCompatible with all
Signet Conductivity/ Resistivity in-struments
Verifies electronics independent of electrodeNIST traceable
unitsTemperature compensated to 25 CAll units ship with NIST
traceable certificates
26
-
InstallationInstallation of Turbidity
4150 TurbidimeterTurbidity InstallationAn owner's manual is
included with every instrumentthat ships. Please refer to this
manual for detailed in-structions regarding installation and
operation. The in-strument includes a mounting braket designed for
the in-strument to mount on a vertical surface.This was made
simpler by having pre-drilled mountingholes on a pattern common
with instruments used forthis measurement. A pattern hole template
is also in-cluded with the instrument when new mounting holesare
required.
Plumbing
Use 8 mm (5/16 in.) OD, 5 mm (3/16 in.) IDflexibletubing for the
water supply connections.
Opaque tubing (not supplied) should be used to pre-vent algae
growth if the tubing will be exposed to sun-light.
The 4150 requires only 1 psi head pressure to oper-ate.
The flow through cuvette is rated for a flow of 100mL/m to 1 L/m
(0.026 - 0.26 GPM).
The integral pressure regulator is rated for a maxim-um pressure
of 200 psi. It is factory adjusted. Do nottamper with the
regulator.
Inlet water pressure should not exceed 50 psi to avoiddamage to
the tubing connection to the regulator.
Fluid temperature must not exceed 50 C (122 F).The shutoff clamp
is used to interrupt the flow duringcuvette maintenance.
route the sensor drain tubing to a suitable drain. Donot
reintroduce the drain sample to the processstream.
PowerThe power required is 100 - 240 volts AC at 47 - 63 Hz.The
output is a single programmable 4 to 20 mA DC in-strument signal
that is in direct proportion to the turbid-ity. Also provided are
two programmable alarm relayoutputs, one for high process alarm and
the other forlow process alarm sense. Note, both alarms are used
in
common to indicate an instrument malfunction, i.e.
HighHumidity.
Calibration and OperationPlease refer to the owner's manual for
details.
Installation of Flow Sensors
PaddlewheelI. Piping Location
The correct location of the sensor in the piping sys-tem helps
to ensure a proper flow profile in the pipe. Itis important to have
sufficient straight pipe immedi-ately upstream of the sensor to
create fully de-veloped turbulent flow. Such a flow profile
providesthe stability required for the paddlewheel to
measureaccurately.
The diagrams below illustrate the minimum distancesthat are
recommended to mount plastic and metalpaddlewheel sensors.
In all scenarios, it is recommended to choose a loca-tion with
as much straight, uninterrupted pipe lengthupstream of the sensor
as possible
Flow Installation Tips:Use Signet fittings for proper insertion
into the pro-cess flow.
Recommended up-stream distances are stated as amultiplier of the
I.D. (inner diameter) dimension ofthe pipe. Note that these
multipliers are different foreach example and depend upon the
upstream ob-struction.
Paddlewheel sensors can be used for all water-likefluids with
little or no particulates (100 micron in dia-meter/length), and
non-ferrous, non-fouling innature.
Always use these sensors in full pipes.Always maximize the
distance between sensors andpump sources.
II. Mounting AnglePaddlewheel sensors are affected by the
mountingangle due to the effect of gravity increasing the
frictionbetween rotor and bearing surfaces. Air entrapment
andsediment within the pipe may also adversely affectsensing
accuracy and/or impede operation.Paddlewheels in Vertical
pipes:
Mount the sensor in a pipe with an upward flow. Thisposition is
recommended for all scenarios, as it en-sures a full pipe.
Vertical installations with down-ward flow are gener-ally not
recommended.
27
-
Paddlewheels in Horizontal pipes:45 from vertical is the
recommended sensor mount-ing angle to avoid air bubbles (pipe must
be full). Withthe sensor at greater angles, the drag created by
therotor resting against the sensor body may comprom-ise
performance at the lower end of the operatingrange.
Straight up installations may experience interferencefrom
entrained air at the top of the pipe.
Inverted installations are often subject to blockagedue to
sediments in the pipe. Mounting sensors in thebottom of the pipe is
NOT recommended if sedimentsare likely to be in the pipe.
K-FactorsK-Factors are calibration values (pulses per unit
ofvolume) used to convert flow sensor output frequenciesto flow
rates. Signet publishes K-Factors for water onlyin gallons (pulses
per gallon) and liters (pulses per liter)for all sensors, in all
applicable pipe sizes and materials,and/or all applicable
installation fitting sizes and materi-als. K-Factors for fluids
other than water must be de-termined empirically, typically on-site
using a secondarystandard.Note that K-Factors are published for
pipe sizes odDN15 to DN300 (0.5 in. to 12 in.). For other pipe
sizes,statistical K-Factors may be available. Contact Technic-al
Support for more information.
Flow Installation Tips:Ensure that all wetted materials are
chemically com-patible with the process liquid.
Pressure and temperature ratings are reduced whenplastic flow
sensors are mounted in metal pipingsystems.
The flow sensor is designed to fit tightly into the fit-tings.
Lightly lubricate o-rings with a non-petroleumbased lubricant to
ease the installation.
Cut the cable to the desired length if too long. Donot coil
extra cable.
III. Installation FittingsFixed Depth
The insertion depth of a paddlewheel in a flow stream iscritical
and must be achieved and maintained to ensureaccurate flow
measurements. Signet installation fittingsfor Rotor-X and Metalex
paddlewheel flow sensors setthis depth automatically and facilitate
the use of con-venient K-Factors (calibration values) published in
thesensor instruction manuals.
The H-dimension controls the insertion depth and theyare
critical for proper seating of the flow sensor into thepipe. These
dimensions can be found listed in the flowsensor instruction
manuals.515, 2536 and 2537 Rotor-X
This section outlines the installation fittings availablefrom
Signet for the 515, 2536 and 2537 Rotor-X fam-ily of flow sensors.
The fitting controls the location ofthe paddlewheel inside the
pipe, which in turn determ-ines the calibration constant
(K-Factor).
Refer to the Fittings section of this catalog for a com-plete
listing of part numbers.
28
-
525 MetalexThis section outlines the installation fittings
availablefrom Signet for the 525 Metalex family of flowsensors. The
fitting controls the location of the pad-dlewheel inside the pipe,
which in turn determines thecalibration constant (K-Factor).
Refer to the Fittings section of this catalog for a com-plete
listing of part numbers.
525-1 Metalex Flow Sensor
The smallest Metalex Flow Sensor (525-1) must be in-stalled into
a specially constructed tee fitting with sock-et-weld piping
connections.
525-2 Metalex Flow Sensor
Use the 525-2 and one of these weld-on fittings forstainless
steel pipes from DN32 (1.25 inches) up toDN300 (12 inches) in
diameter.
525-3 Metalex Flow Sensor
The 525-3 is the longest metalex flow sensor. It re-quires one
of the strap-on saddles for pipes from DN50(2 inches) up to DN300
(12 inches) in diameter.
Consult a qualified welder to install metalex fittings.Use of
saddle fittings reduces the pressure rating for the525 sensor.
IV. Rotor placementProcedure for plastic paddlewheel
sensors:
Hold the sensor upside down and hold the rotor still.1.Place the
tip of a medium blade screwdriver betweenthe rotor and the sensor
body.
2.
Turn the screwdriver blade 90 to flex the ear backjust enough to
angle the rotor pin out of one side.
3.
Procedure for metal paddlewheel sensors:
1. With a small pair of needle-nose pliers, firmly grip
thecenter of the rotor pin (shaft) and with a twisting motion,bend
the rotor pin into an S shape. This should pull theends of the pin
out of the retainers and free the rotor as-sembly.
2. Remove retainer from each side by gently tapping itinwards
using a punch. Install a new retainer with its ro-tor pin clearance
hole inward. Only install one retainer atthis time.
29
-
3. Insert the new rotor assembly and bearings into therotor
housing of the sensor and place the new rotor pin(shaft) through
the open end of the rotor housing,through the rotor and bearings,
and into the previouslyinstalled retainer.
4. Tap the second retainer (rotor pin clearance hole in-wards)
into the hole while lining up the rotor pin with thecenter of the
retainer hole. This completes the rotor re-placement procedure.
V. Cable glands and conduit adapter kitsCable Glands and Conduit
adapter kits are available toinstall on Models 515, 2536, 525 when
used in wet en-vironments. These items protect against moisture
enter-ing the back end of the sensor. Follow these simple
in-structions to prolong the life of the sensor. Conduit ad-apters
are included with the 2540 sensors.
Remove the black Nylon bushing to expose the fe-male threads at
the back end of the flow sensor. Usea standard medium size
screwdriver to pry the bush-ing up and out of the port. Slide it up
and off the en-tire length of the cable, or cut it away carefully
so asnot to knick the cable jacket.
1.
Thread the gland or conduit adapter over the cableand screw the
1/2 in. NPT male threads into the top ofthe sensor in place of the
bushing.
2.
For liquid-tight glands, tighten the compression fittingonto the
fitting sufficiently to achieve a seal aroundthe cable.
3.
For conduit adapters, thread the cable through the ad-apter and
tighten the adapter in