Technical Proposal
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Technical Proposal
Submitted on: 2/27/15
Rep: rep name, company
For: name of customer, company
By: your name
FLEXIM Americas Corporation
FLEXIM Americas Corporation
250-V Executive Drive
Edgewood, NY 11717 USA
Tel: (631) 492-2300 Fax: (631) 492-2117 Website:
www.FLEXIM.com
Email: [email protected]
Table of Contents
1. Introduction
2. Ultrasonic Flowmeter Measuring Principle
3. General Specifications
4. Mounting and typical installations
5. Measurement Requirements
6. Description of the Proposed Ultrasonic Flowmeter
6.1 Features / Benefits
6.2 Technical Data for Instruments Offered
6.2.1 FLUXUS ADM F7407.SCE
6.2.2 Transducer Q
6.2.3 Transducer Mounting Fixture: Sensor Strap Mounting Kit
6.2.4 Laboratory Calibration Results
7. Installation
8. Bill of Materials/Price Proposal
9. Commissioning Services (Optional)
10. Delivery & Warranty
Introduction
FLEXIM Americas Corporation is a wholly owned subsidiary of
FLEXIM GmbH, established in the United States in 2005 as the North
& Central American Office to manage engineering, development,
production Sales & Marketing and After-sale Services to our
customer in the region. Since this time FLEXIM Americas has
successfully delivered over 8,000 metering solutions for the most
demanding of metering conditions including to all of the majors in
the Oil & Gas sector.
Ultrasonic Flowmeter Measuring Principle
The proposed flow meter employs the transit time difference
principle for flow measurement. Ultrasonic signals are emitted by a
transducer installed on one side of a pipe, reflected on the
opposite side and received by a second transducer. These ultrasonic
signals are emitted alternatively in the direction of flow and
against it.
As the medium in which the signals propagate is flowing, the
transit time of the ultrasonic signals in the flow direction is
shorter than against the flow direction.
The transit time difference Δt is measured and allows to
determine the average flow velocity on the propagation path of the
ultrasonic signals. A flow profile correction is then performed in
order to obtain the area average of the flow velocity, which is
proportional to the volume flow.
Transit time difference correlation principle
The received ultrasonic signals will be checked for their
usefulness for the measurement and the plausibility of the measured
values will be evaluated. The complete measuring cycle is
controlled by the integrated microprocessors. Disturbance signals
will be eliminated.
Mounting and typical installation
Single versus Dual channel configurations:
A single channel meter incorporates one set of transducers. A
Dual channel meter incorporates 2 sets and computes the average
velocity: The decision to purchase a single channel or dual channel
meter is one of price/performance. With adequate straight run of
pipe a single beam performance will be similar to a dual beam. A
dual beam will have repeatability in the order of 1.0 to 0.5%
better than a single beam. With shorter straight runs a dual
channel is recommended because flow profile errors will have a
greater effect on the accuracy. In summary a dual beam offers
slightly better accuracy and redundancy.
Typical Installations
Requirements & Application Analysis
The application condition requirements for the application
are:
Pipe Size: OD, WT
Medium
Temp
Hazardous Area
Available Straight Run
Power
Inputs
Outputs
Description of the proposed ultrasonic flowmeter
Features/Benefits
The proposed ultrasonic flowmeter has the following
features:
· “Fit for Purpose” FLEXIM Transducers – Factory “matched” and
calibrated Stainless Steel Transducers (hermetically sealed) and
armored stainless steel cable delivers the robustness required of a
portable or permanent device. “Intelligent” design – transducer
contains a microchip read by the meter that contains the
calibration information. Competing devices are error prone when the
transducer type is not input correctly.
· Transducer Temperature Compensation – The only Clamp-on meter
that employs an RTD inside the transducer block as per ASME MFC 5M.
A temperature algorithm compensates for calibration shifts due to
temperature changes. Without this compensation the accuracy drift
due to temperature change will 1% for a 30degF change.
· PermaLokTrack Mount System – For permanent installations the
Stainless Steel PermaLok Track provides the highest level of
transducer support and protection. FLEXIM has engineered a
permanent solid coupling material for sonically coupling the
transducer to the pipe. With the protection of the PermaLok track
and the permanent coupling pads there is no need to periodically
re-couple transducers.
· Broadened Application Range – FLEXIM incorporates a dynamic
power delivery scheme that delivers the power to the transducers
required to get the signal through the liquid.
· Ease of Use – The meter is designed to be intuitive and is
very easy to program. Installation of entire meter can be easily
accomplished in less than 4 hours.
· FLEXIM “Flexibility” – All FLEXIM meters can be configured to
“adapt” to the application conditions at hand. If the upstream
straight run is less than 10 diameters , the users may employ a
number of mitigating techniques:
· ‘Multi-bounce’ transducer mounting allows the meter to average
out local disturbances of the flow profile over a longer axial
distance on the pipe. An even number of traverses (up to 8) simply
cancels all cross-flow, non-axial influences on the flow velocity
measured.
· Proper location of the interrogating sonic beam (in the plane
of an upstream elbow for example) assures that the instrument will
‘see’ the fast flowing core of the liquid flow stream.
· Multi-beam interrogation of the flow stream through the use of
two or more transducer pairs will tend to average out locally
asymmetrical distribution of the flow velocity field.
· Reduced Noise Susceptibility – All FLEXIM flow computers are
fully shielded and utilize TRIAX cabling (provides for an
additional armored outer shield) to prevent/minimize the influence
of external noise sources.
· Signal Detection – The signal processing of the transmitted
signal is NOT based upon a ZERO crossing detection which relies
heavily on a “match” between the wall thickness of the pipe and a
selected transducer’s operating frequency. Rather FLEXIM employs a
signal correlation function in which the entire receive signal is
utilized resulting in a more robust signal detection process.
· Application Guarantee – All meters sold. FLEXIM goes to great
lengths to qualify each and every application and as such provides
an application guarantee on each meter sold. We will ensure
satisfaction with ALL metering solutions provided by FLEXIM.
· Support – In addition to FLEXIM’s full-service operation
center on Long Island, New York, and we have factory certified
sales and service representatives located throughout the US and
Canada. FLEXIM provides a free telephone hotline for assistance
“when you need it”, including after hours 7 days a week till
12AM.
· Total Cost of Ownership – No need for recalibration, no wear
mechanism, no pressure drop, no additional flanges, valving,
by-pass, etc...
· Proven Reliability – 190 year calculated MTBF
Technical Data of Instruments Offered
FLUXUS ADM F7407FLUXUS ADM F7407 is designed especially for
permanent installation. With one or two flow channels and versatile
electrical inputs and outputs, it can be optimally configured for
your measuring application. A variety of process parameters can be
measured and handled.
Technical Data
ADM F7407
Measureable flow
velocity:
0.03 to 115 ft/sec
Repeatability:
0.15 % of reading ±0.01 m/s
Anticipate Accuracy:
Traceable wet flow calibration at factory
1 to 1.5 % of reading ±0.01 m/s
Operating temperature:
-20 to +50 °C
Ingress protection:
IP66 / NEMA 4X
Area Certification:
FMC Class I Div 2
Power supply:
110/220 VAC
Outputs:
Modbus RTU (Optional)
RS-485
2 x 4-20 mA active
3 x Relay
Frequency (Optional)
Internal Datalogger
Dimensions
External Dimension of F7407
Wall and 2 “Pipe Mounting Kit for F7407
Transportable- ADM 7407 with Portable connections
Transducer
The transducers together with the transmitter receive a
calibration with water as medium. The proposed transducer is
delivered with a calibration certificate. For this application we
recommend CDQ2N81 which will cover the full spectrum of your pipe
sizes
Transducer Mounting Fixture:
FLEXIM’s sensor strap mounting kit covers all pipe sizes from
0.5” up to 2.5”. These straps are easy to mount and work great in
all portable or applications that involves the need to periodically
move the transducers to different pipes. Made from stainless steel
you don’t have to worry about maintenance or breakages.
Laboratory Calibration Results
“Out of Box 3rd Party testing on pipe sizes 4”, 8”, 12” &
20”, by CEESI Labs verifies meter accuracy typically 1.5%
Installation
A general arrangement drawing can be found below:
Bill of Materials
Please issue purchase order(s)
FLEXIM AMERICAS CORPORATION
250-V Executive Drive
Edgewood, NY 11717
Terms: NET 30
FOB: Factory
Freight: Pre-Pay and Add
Validity: 90 Days
Commissioning Services
A FLEXIM service engineer can assist in the installation and
start-up of the hardware being proposed. This service assumes that
the flow computers and junction boxes are mounted, appropriate
conduit is run to the pipes, transducer and temperature cable is
pulled to the flow computer and transducers and temperature
junction boxes, and A/C power is connected to the meter. FLEXIM’s
service engineer will be responsible for installing flow and
temperature transducers, terminating transducer and temperature
cables and performing calibration and commissioning of each
system.
Scope of Work:
Work Performed by Other:
Mount meters
Run and install power to meters
Run Conduit for Power / Transducer Cables / Temperature
Cables
Run cables in conduit (when required)
Work Performed by FLEXIM:
Terminate Transducer / Temperature Cables
Install Transducers / Temperature sensors on Pipe –
Note: This will require cutting insulation - every attempt will
be made to leave the insulation intact but insulation touch up may
be required (by others).
Support Requirements:
On Site personnel to provide the following logistical support to
FLEXIM personnel
Escort and access to the installations sites
Ladders / External Power / Lighting / Access
Delivery and Warranty
The terms of delivery shall be within 4 weeks from the date of
order confirmation / technical clarification.
FLEXIM guarantee that the design, engineering and the instrument
supplied shall be free from defects. All defective material shall
be replaced free of charge within 12 months from the date of
delivery of the instruments whichever comes earlier.
Page 1 of 14
FLEXIM AMERICAS Corporation
250-V Executive Dr. Edgewood NY 11717 631-492-2300
www.FLEXIM.com