-
HT-19
OMEGALUX PREMIUM QUALITYSTRIP HEATERS
FEATURESA choice of sheath materialscapable of operating up to
1500Fsheath temperature to heat variousprocesses economically
includerust-resisting iron sheath (750F),chrome steel sheath
(1200F),Monel (950F) and Incoloy(1500F).Refractory-insulated
constructionexclusively. By far the most ruggedand best for long,
dependableservice.More types and ratings. Moreprecise matching to
your powerservice and work load requirements.Special ratings and
sizes can bemanufactured readily.More stocked models. Over
500models are stocked and areavailable for immediate
shipment.Lengthwise and cross sectioncurving. Available on
made-to-order only for efficient heat transfer.Strip and ring
heaters can be factoryformed to fit the shape of thesurface to be
heated.Easy installation. OMEGALUXclamping devices and mountingtabs
speed installation. Mountingstuds are readily available
fromOMEGALUX stock.More choices of strip heaterterminal locations.
To simplifywiring layout between elements andto power lines.
Product to be Temperature Sheath Product AllowableHeated Desired
Material Temp Watt
for Products DensitySolidsi.e. molds Up to 1400F Rust Resisting
560F 3platens, dies clamp-on Iron 150F 8pipes, tanks
applications
Chrome Steel 850F 7700F 10400F 15
Incoloy 200F 28750F 201100F 81350F 3
1400F 2.5Air/GasesFree Air Velocity Up to 1400F Rust Resisting
500F 31 ft/sec. Bracket Iron 100F 8
Mounted Chrome Steel 950F 7800F 10500F 15
Incoloy 1400F 3400F 34
Free Air Velocity Bracket Rust Resisting 500F 34 ft/sec. Mounted
Iron 250F 8
Chrome Steel 1000F 7850F 10550F 15
Incoloy 1400F 5600F 34
Strip Heater Selection Guide
Many additional features.Available to adapt heaters to
suitspecial applications--made to order.Trouble-free installations.
Little orno maintenance costs.Controls are part of the
totalOMEGALUX package for yourheating job regardless of its type
orthe temperature precision you need.
OMEGALUX technical assistance.Your OMEGALUX representativewill
be glad to answer yourquestions, to assist in the selectionof
heaters, and recommendmethods of installation to assure
asatisfactory installationU.L Component Recognizedand/or C.S.A.
Certified.
High quality, coiled alloy resistor wire isuniformly spaced over
the width and length ofthe strip heater to assure even heat
distribution
Resistor wire is embedded inspecially formulated,
high-graderefractory material which bothinsulates the resistor and
transfersheat rapidly to the sheath.
Refractory is then compressed to rock-hardness and highest
density under tremendous hydraulic pressure to maximize heat
transfer from coil tosheath. Elements are oven cured at high
temperature to semi-vitrify andmature the refractory
Maximum heat transfer from the instant theelement is first
energized, is provided by the highemissivity black oxide finish.
Elements with shinysurfaces do not transfer heat as well.
-
HT-20
ELEC
TRIC HEA
TERS
Maximum Sheath TemperatureRust Resisting Iron 750FMonel
950FChrome Steel 1200FIncoloy 1500F
STRIP HEATERS A Technical ReviewAPPLICATION OFOMEGALUX
STRIPHEATERSOMEGALUX strip heaters are usedprincipally for
convection-type airheating and clamp-on installations.When
selecting strip heaters foreither, two important factors mustbe
considered:1. The proper sheath material forresisting any rusting
and oxidizinginherent in the process orenvironment and for
withstandingthe sheath temperature required.Standard sheath
materials are rust-resisting iron, chrome steel andIncoloy (NS
Series only.) Stainlesssteel and Monel sheaths areavailable at an
additional charge.Maximum work and sheathtemperatures are below.2.
The watt density of the element,or watts per square inch of
heatedarea. This should be low for heatingasphalt, molasses and
other thicksubstances with low heattransferability; it can be
higher forheating air, metals and other heat-conducting materials.
(See curveson following pages for determiningallowable watt
densities.)When high operating temperaturesare needed, watt density
must belimited in order not to exceed themaximum sheath
temperature.Watt density is given in the How ToOrder table for each
strip heater. In general, a viscous material withlow thermal
conductivity requires alow watt density. High wattdensities can be
used with thinnerliquids and with materials of highthermal
conductivity. Prematureloss of the element due to
excessivetemperature may result if thematerials heat-take-away
ability islow. Also, the material may becharred, carbonized or its
chemicalmakeup altered by overheating.InstallationOMEGALUX strip
elements in mostcases can be applied with standardhardware.
However, for firm contactand best heat transfer, stockedOMEGALUX
strip heater clampsare recommended.
Clamping bands can be used to firmly fastenstrips longitudinally
to large-diametercylindrical surfaces.
Connecting Lead WireShould be nickel-plated copper,nickel or
alloy. Copper will oxidizeand loosen connections. Utilityclamps
secure strip elements to flatsurfaces with large radii such aslarge
tanks. Threaded studs arewelded to surface, heaters arepositioned,
then clamps are bolteddown. Where more than one clampis used,
tighten nuts and then backoff 12 turn to allow for
expansion.Heaters may be held in position inplatens and similar
objects with asteel plate recessed to heaterswidth, thickness and
positions, thenscrewed to the working plate orsurface.Easy
application of strip elements toovens may be made simply with
theuse of welded-on studs andsecondary insulation bushings (see
Strip Heater Modifications and Accessories). Mounting holes in tabs
are slotted to allow for expansion.
SELECTING SIZES ANDRATINGSThe calculation of total
heatrequirements for an application isoutlined in the Technical
Section.For assistance, get in touch with anOMEGALUX applications
engineerwho will be glad to help solve yourheating problem. Once
total heatrequirements are established, thequantity, size and
ratings can bedecided. Plan for enough heaters topermit even
temperature asrequired by the process. Thesensor for the
temperature controlshould be clamped to the workingsurface for
accurate control. In thecase of air heating, place sensorwhere the
desired temperature isneeded, but not too far from heaterto help
avoid undershoot andovershoot.After the specific heater size
andrating has been tentatively selected,the watt density must be
checkedagainst the appropriate curves. For example, the OT-4315
chromesteel sheath heater rated 1500watts has a watt density of
11watts/sq. in. and can be operated at 1200F sheath temperature. If
clamped to a work surfaceoperating at 600F, Figure C-1shows that
the maximum allowablewatt density is 12 watts/sq. in.Since the watt
density of the OT-4315 is below the maximumallowed, good clamping
will providelong service. If the heater selectedhas a watt density
higher than thatstipulated by the graph, then thesealternatives
could be considered:1. Use more heaters of a low wattdensity to
obtain the required kWcapacity.2. Reduce the kW capacity neededby
reducing heat losses andallowing for a longer heat-up time.
OMEGALUX Strip Heaters shown herewith clamping bands.
CAUTION AND WARNINGFire and electrical shock mayresult if
products are usedimproperly or installed or used by non-qualified
personnel. See inside back cover foradditional warnings.
-
76 To Order, Call or Shop Online at omega.comSM
EXAMPLES OF HEATING VESSELSWith Clamp-On Strip HeatersVESSEL
HEATINGCALCULATIONSA steel melting pot or crucibleweighing 150 lbs.
contains 400 lbs.of lead, and is insulated by 2" ofrock wool and a
sheet steel outsideshell of approximately 20 ft2 area.Three sq. ft.
of lead surface areexposed to the air. Sufficientkilowatt capacity
must be installedto bring the material and containerfrom 4 to 427C
(70 to 800F) in one hour, and to heat 250 lb of lead per hour from
4 to 427C (70 to 800F) thereafter.Melting point of lead =
621FSpecific heat of solid lead =
0.031 Btu/lb/FSpecific heat of molten lead =
0.040 Btu/lb/FHeat of fusion/lead = 10 Btu/lbSpecific heat of
steel crucible =
0.12 Btu/lb/FRadiation loss from molten leadsurface = 950 W/ft2
(see Heat
Loss Curves)Surface loss from outside shell of
pot = 66 W/ft2
TO FIND INITIAL HEATINGCAPACITY IN kW:kWh = (QS + QF + QL QC) +
(Ls) (H)
3412 2000Where:QS = BTU to heat lead to melting pt. = [400 x
0.031 (621 - 70)]QF = BTU to melt lead = (400 x 10)QL = BTU to heat
lead from meltingpt. to 800F =
[400 x 0.040 (800 - 621)]QC = BTU to heat container to
800F = [150 x 0.12 (800 - 70)]LS = Surface losses/lead and
container = (950 x 3) + (66 x 20)H = heating time/hrskWh =
26836.4 + 4170
3412 2000= 7.87 + 2.09= 9.96
kW = 9.961 (hrs. allowed for heating)
= 9.96
To Find kW OperatingRequirement:kW = QS + QL + QF + LS
3412 1000Where:QS = kW to heat added lead to
melting pt. = [250 x 0.031(621 - 70)]
QL = kW to heat melted lead = [250 x 0.040 (800 - 621)]QF = Heat
of fusion = (250 x 10)LS = Losses = (950 x 3) + (66 x 20)kW =
8560.25 + 4170
3412 1000= 2.5 + 4.17= 6.67 kW
Therefore, install 9.96 + 20%(contingency factor) 12 kW and
useautomatic temperature control. Byallowing a longer heat-up
period theinstalled capacity may be reduced.By allowing 2 hours for
this initialheat-up period, only 6.01 kW wouldbe required. However,
operatingheat requirements are now largerthan heat-up
requirements,consequently use 6.67 x 120% or 8 kW. This method
results in lowerinstallation costs and is preferablewhen rapid
heat-up is not of primeimportance. If heat-up is allowed in 2 hrs,
for example,surface losses are multiplied by 2 and andtotal kWh is
divided by 2 to calculaterequired kW.
FOR CLAMP-ON STRIP ANDRING HEATERSIt was determined above that
12 kWheating capacity was needed forlead melting. It was decided to
useType OT strip heaters clamped tothe thermally insulated crucible
orpot. Since material is heated to800F chrome steel sheath
stripheaters must be used. Refer toFigure C-1 on this page. For
amaximum sheath temperature of649C (1200F) the ambienttemperature
inside the spacebetween thermal inside the space
between thermal insulation andvessel will be (800F + 1200F) 2 =
1000F.From the curve the allowable wattdensity is 8 W/in2. Based on
size ofthe crucible, Type OT chrome steelsheathed strip heaters,
24" longwithout mounting tabs, are selected.To determine the number
of stripsneeded, and the wattage of eachuse the following formula.
Allowablewatts per strip is (overall lengthminus 4" cold sections)
x 3.45 in2per lineal inch of sheath x 8allowable watts/in2. Thus
(2512 - 4) x 3.45 x 8 = 600 watts rounded offto nearest higher 10
watts. Thetotal number of strips required is12,000W 600W = 20
strips. Orderstrips similar to OT2507 in size butrated 600 watts.
Stock deliverycould be obtained by using 24standard OT-2405, 500
watt stripswhich would have a watt density of:
500W = 7.35 W/in2(2334 - 4) x 3.4
If application is to employ 3-phasepower source, total element
countshould be a multiple of 3 to permitbalanced electrical load.
Stripheaters should be applied to tanksurface by using applicable
utilityclamps on 5-inch centers.
0 100 200 300 400 500 600 700 800 900 1000 1100 1200
02
46
810
1214
1618
2022
WAT
TS P
ERSQ
UARE
INCH
F AMBIENT TEMP.SHEATH TEMP + MATERIAL TEMP.
2=
WATTAGE RATING OF STRIP = WATTS/SQ. IN. x HEATED SHEATH
AREAHeated length of strip heaters shorter than 30 1/2 in. is 4 in.
less than overall length:
strip heaters 30 1/2 in. long or longer have heated length 5 in.
less than overalllength. 1 1/2 in. wide strip heaters have 3.45
square inches of surface per linearinch. 1 in. wide strip heaters
have 2.31 square inches of surface per linear inch.
500
1200
1100
1000
900
800
700
600
F SHEATHTEMPERATURE
Figure C-1: Sheath Temperature ofclamped-on OMEGALUX Strip
Heaters forvarious ambient temperatures andwattage ratings.
-
(750F) for iron and 510C (950F)for chrome steel.Calculate air
velocity through theheater to verify maximum operatingsheath
temperatures will not beexceeded.kWh = V F
A x 60Where:V = Air velocity in ft/secF = Air flow in ft3/min =
450 cfmA = Area of htr. = (1538" x 2158"=2.3 ft2)V = 450
2.3 x 60= 3.3 ft/sec
Using Figure C-5 (page 78), basedon an outlet temperature of
66C(150F) and a watt density of 26W/in2, a velocity in excess of 9
ft/secis required to keep the sheathtemperature at permissible
levels forthe CAB-152. This is well above theactual velocity and
rules out the useof the CAB-152. By applying thewatt density and
outlet airtemperature to Figure C-2 (shownbelow) we see that we
need aminimum of approximately 3 ft/secair velocity to maintain a
maximumof 482C (900F) sheathtemperature. Since this is lowerthan
actual velocity, the use of CAB-1511 is acceptable.*
77To Order, Call or Shop Online at omega.comSM
EXAMPLES FOR HEATING AIR/GASESHEATING AIR IN DUCTSProblem: A
special drying processrequires that we raise 450 cfm of airfrom 4
to 66C (70 to 150F). Theexisting ductwork which will be usedfor
this purpose is insulated(negligible losses) and measures 2' wide
by 1' high. Power availableis 240 Volts 3-phase. Calculate
therequired kW and select a compatibleheater for this
application.Solution: Under standardconditions air has a specific
weightof 0.08 lbs./ft3 and a specific heatvalue of 0.24 Btu/lb/F.kW
= WT x CP x T x 1.2
3412Where:WT = Wt of air/hr = (450 x 60 x .08) = 2160CP = Spec.
heat of air = .24T = Temp. rise F = 803412 = BTU to kWh
conversion1.2 = Safety factorkW = 2160 x .24 x 80 x 1.2
3412= 14.85
For quick estimates, the followingformula may be used where 3000
isa conversion factor in units of ft3 - F/min-kW.kW = cfm x temp.
rise
3000= 450 x 80 = 12 x 1.2 = 14.4
Or: When airflow (ft3/min) andtemperature rise are known,
figureC-7 (page 79) (which shows 15 kWfor this example) may be
used. Thiscurve does not include contingencyallowance.To select the
heater:In this application there are a fewchoices to be explored.
Firstconsider OMEGALUX CAB Seriesheaters. Knowing the
applicationrequired, 15 kW leads us to selecteither the CAB-1511
with chromesteel elements or the CAB-152 withiron sheath elements
rated at 26 W/in2. The maximum operatingsheath temperatures are
399C
An alternative method to beconsidered would be mountingbanks of
finned strip heatingelements in the ductwork. Knowingthat 15kW is
required and that ourduct measures 2' wide x 1' high and that a
chrome steel sheath isrequired, we can select the properfinned
strips.Using figure C-2 (shown below), themaximum allowable watt
density is26 W/in2. Elements with wattdensities of 26 W/in2 or less
aresuitable. Since the duct is 2' wide,consider using OTF-2101, 21"
long,240 Volts, 1250 watts at 21 W/in2.No. finned strips
required:
= Operating wattsRated W/elem.
= 15,0001250
= 12 finned stripsUse 12 OTF-2101 finned stripsmounted sideways
with narrowedge facing airstream. Total numberof elements installed
must bedivisible by 3 so they can beconnected in a 3-phase delta
circuit.
*Use of CAB-1511 will require a transition in the existing
ductwork to accommodate the heater.
100 200 300 400 500 600
48
1216
2024
2832
WAT
TS P
ERSQ
UARE
INCH
F AMBIENT TEMP.
WATTAGE RATING of FINNED STRIP-WATTS SQ. IN. x 3.60 x HEATED
LENGTH FOR HEATED LENGTH of FINNED STRIP
In calculating heater capacity, usethe maximum ambient
temperature and lowest air velocity. For close grouping of heaters,
use 80% of calculated values.
16 F.P
.S. DISTRIBUTED AIR VELOCITY
9 F.P
.S.
1 F.P.S. or FREE AIR
4 F.P.S.
Figure C-2 Allowable Watt Densities/Finned Strips: Allowable
finned strip wattageratings for 800 to 900F sheath operating
temperature at different air temperatures and velocities
-
78 To Order, Call or Shop Online at omega.comSM
ALLOWABLE WATT DENSITIES
112" wide strip heaters have a 3.45 square inches of surface
perlinear inch; 1" wide strip heatershave 2.31 square inches of
surface per linear inch.
0 100 200 300 400 500 600 700 800 900 1000
WAT
TS P
ER S
QUAR
E IN
CH
28
24
20
16
12
8
4
16 F
.P.S
. DISTIBUTED
AIR VELOCITY
9 F
.P.S
.
4
1 F.P.S.
DISTIBUTED
STRIP HEATER WATTAGE RATING =WATTS /SQ. IN. X HEATED SHEATH
AREA
F AMBIENT TEMPERATURE
9 F.P
.S.
4 F.P
.S
1 F.P.S.
OR FREE
AIR
WAT
TS P
ER S
QUAR
E IN
CH
STRIP HEATER WATTAGE RATING = WATTS/SQ. IN. x HEATED SHEATH
AREA1 1/2 in. wide strip heaters have 3.45 sq. inches of surface
per linear inch; 1 inch wide strip heaters have 2.31 sq. in. of
surface per linear inch.Heated length of strip heaters shorter than
30 1/2 in. is 4 in. less than overall length; strip heaters 30 1/2
in. or longer have heated length 5 in. less than overall length. In
calculating heater capacity, use the max. ambient temp.
and lowest air velocity. For close grouping of heaters, use 80%
of calculated values.
F AMBIENT TEMPERATURE0 100 200 300 400 500 600 700
1
2 3
4
5
6 7
8
9 1
0 11
12
13 1
4 15
16 F
.P.S
. DISTRIBUTED
AIR VELOCITY
0 100 200 300 400 500 600
32
28
24
20
16
12
8
4
F AMBIENT TEMPERATURE
WAT
TS P
ER S
QUAR
E IN
CH
STRIP HEATER WATTAGE RATING of FINNED STRIP = WATTS/SQ. IN. x
3.60 x HEATED LENGTH for HEATED LENGTH of FINNED STRIP
In calculating heater capacity, use themaximum ambient
temperature and lowestair velocity. For close grouping of heaters,
use 80% of calculated values.
16 F
.P.S
. DISTRIBUTED
AIR VELOCITY
9 F
.P.S
.
4
1 F.P.S
. OR
FREE AIR
Heated length of strip heatersshorter than 3012" is 4" less
thanoverall length; strip heaters 3012" orlonger have heated length
5" lessthe overall length. In calculating
heater capacity, use the maximumambient temperature and lowest
air velocity. For closegrouping of heaters, use 80% of calculated
values.
ALLOWABLE WATT DENSITIES/STRIP HEATERS
Allowable Wattage Ratings that develop 371C (700F) strip heater
surface temperature at different air temperatures and
velocities.
Allowable Wattage Ratings that develop 538C (1000F) strip heater
surface temperature at different air temperatures and
velocities.
Allowed Finned Strips Wattage Ratings for 316C (600F)
sheathoperating temperature at different air temperatures and
velocities.
ALLOWABLE WATT DENSITIES/FINNED STRIPS
FIGURE C-3 FIGURE C-4
FIGURE C-5
-
79To Order, Call or Shop Online at omega.comSM
STRIP HEATERS FOR AIR HEATINGProperties of Air/Pressure Drop
Curves
1 3 5 7 9 11
KILO
WAT
TS
30
10
0
HUNDRED CUBIC FEET OF AIR PER MINUTE
50
70
90
110
130
150
170
550
F RI
SE
500
F RI
SE
450
F RISE
400F
RISE
300F
RISE
250F
RISE
200F
RISE
150F R
ISE
100F RISE
350F
RISE
75F RISE
50F RISE
600
F RI
SE
300 600 900 1200 1500 1800 2100
PRES
S. DR
OP-
IN. o
f WAT
ER (L
BS/IN
2 =
IN. o
f WAT
ER x
0.0
36)
1.0.9.8.7.6.5.4.3.2.1
.09
.08
.07
.06
.05
.04
.03
.02
.01.009.008.007.006.005.004.003.002
VELOCITY OF AIR F.P.M. (STD.AIR)
TRIPLE ROW OF CABDOUBLE ROWSINGLE ROW
Resistance to Air Flow over OMEGALUX Finned Strip and CAB Air
Heaters
Heat Requirements for Air. Based on .08 lbs/cu. ft. Weightand a
Specific Heat of .237 BTU/ lb/ F
OTF Series Finned Strip Heater
FIGURE C-7 FIGURE C-6
OTF-102 finned strip heater, $68, shown smaller than actual
size. See page 90 for details.
-
80 To Order, Call or Shop Online at omega.comSM
HEATER SELECTION NOMOGRAPHS
TO USE CURVE (FIGURE C-8)1. Select maximum desired operating
air temperature on (D)2. Choose either chrome steel sheath
or rust-resisting iron sheath (points E) on basis of operating
conditions
3. Draw straight line through points (D) and (E) to reading on
(F) giving maximumallowable watts per square inch
4. Select desired length heater with equivalent watt density or
less
TO USE CURVE (FIGURE C-9)1. Select maximum desired
work temperature on (A)2. Choose either chrome steel sheath
or rust-resisting iron sheath (points B) on basis of operating
conditions
3. Draw straight line through points (A) and (B) to reading on
(C) giving maximumallowable watts per square inch
4. Select desired length heater with equivalent watt density or
less
TO USE CURVE (FIGURE C-10)1. Select a maximum desired
air temperature on A2. Choose sheath material
to suit operating conditions3. Select minimum anticipated
air
velocity on B.Note: Natural circulation is equal to one foot per
second
4. Draw straight line through the points selected on A and Bread
C for allowable watt density
5. Select required length heater with equivalent watt density or
less
Selection of Strip Heaters for Clamp-On Applications
1000900
800
700
600
500
400300
200100
0
Chrome Steel Sheath
Rust Resisting Iron Sheath
20
18
16
14
12
10
8
6
4
20
A CBW
atts
per
Squ
are
Inch
Air
Tem
p. in
F
Selection of Watt Density for Finned Strips
700
600
500
400
300
200
100
0
Wat
ts p
er S
quar
e In
ch
Chrome Steel Sheath
Rust Resisting Iron Sheath15
10
5
Air Velocity-Ft./Sec.
169
41
Air Velocity-Ft./Sec.
169
41
Air
Tem
p. in
F
20
25
30
A CB
Selection of Strip Heaters for Air Heating
700
600
500
400
300
200
100
Chrome Steel Sheath
Rust Resisting Iron Sheath
20
15
10
5
00
Air Velocity-Ft./Sec.
169
41 W
atts
per
Squ
are
Inch
Air Velocity-Ft./Sec.
169
41
Air
Tem
pera
ture
in F
D FE
Figure C-8
Figure C-9
Figure C-10
-
One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA
(1-888-826-6342) | [email protected] www.omega.com
More than 100,000 Products Available!
CANADAwww.omega.caLaval(Quebec)
1-800-TC-OMEGA
UNITED KINGDOMwww. omega.co.uk
Manchester, England0800-488-488
GERMANYwww.omega.de
Deckenpfronn, Germany0800-8266342
FRANCEwww.omega.fr
Guyancourt, France088-466-342
BENELUXwww.omega.nl
Amstelveen, NL0800-099-33-44
UNITED STATESwww.omega.com
1-800-TC-OMEGAStamford, CT.
CZECH REPUBLICwww.omegaeng.cz
Karvin, Czech Republic596-311-899
TemperatureCalibrators, Connectors, General Test and Measurement
Instruments, Glass Bulb Thermometers, Handheld Instruments for
Temperature Measurement, Ice Point References, Indicating Labels,
Crayons, Cements and Lacquers, Infrared Temperature Measurement
Instruments, Recorders Relative Humidity Measurement Instruments,
RTD Probes, Elements and Assemblies, Temperature & Process
Meters, Timers and Counters, Temperature and Process Controllers
and Power Switching Devices, Thermistor Elements, Probes and
Assemblies,Thermocouples Thermowells and Head and Well Assemblies,
Transmitters, Wire
Pressure, Strain and ForceDisplacement Transducers, Dynamic
MeasurementForce Sensors, Instrumentation for Pressure and Strain
Measurements, Load Cells, Pressure Gauges, Pressure Reference
Section, Pressure Switches, Pressure Transducers, Proximity
Transducers, Regulators, Strain Gages, Torque Transducers,
Valves
pH and ConductivityConductivity Instrumentation, Dissolved
Oxygen Instrumentation, Environmental Instrumentation, pH
Electrodes and Instruments, Water and Soil Analysis
Instrumentation
HeatersBand Heaters, Cartridge Heaters, Circulation Heaters,
Comfort Heaters, Controllers, Meters and Switching Devices,
Flexible Heaters, General Test and Measurement Instruments, Heater
Hook-up Wire, Heating Cable Systems, Immersion Heaters, Process Air
and Duct, Heaters, Radiant Heaters, Strip Heaters, Tubular
Heaters
Flow and LevelAir Velocity Indicators, Doppler Flowmeters, Level
Measurement, Magnetic Flowmeters, Mass Flowmeters,Pitot Tubes,
Pumps, Rotameters, Turbine and Paddle Wheel Flowmeters, Ultrasonic
Flowmeters, Valves, Variable Area Flowmeters, Vortex Shedding
Flowmeters
Data AcquisitionAuto-Dialers and Alarm Monitoring Systems,
Communication Products and Converters, Data Acquisition and
Analysis Software, Data LoggersPlug-in Cards, Signal Conditioners,
USB, RS232, RS485 and Parallel Port Data Acquisition Systems,
Wireless Transmitters and Receivers
click here to go to the omega.com home page
WebMasterText BoxEPG05