Omega Engineering TX801TC SERIES User manual

An OMEGA Technologies Company
User'sGuide
http://www.omega.com
e-mail:[email protected]
TX801TC SERIES
THERMOCOUPLE TRANSMITTER
Where Do I Find Everything I Need for
Process Measurement and Control?
OMEG ...Of Course!
TEMPER TURE
Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies
Wire: Thermocouple, RTD & Thermistor
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D T CQUISITION
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M-3802/0302
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omega.comTM
OMEG
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The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts no liability for any errors it
contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, patient connected applications.
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a
period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace
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FOR WARRANTY RETURNS, please have the
followinginformation availableBEFORE contact-
ingOMEGA:
1. P.O. number under which theproduct wasPUR
CHASED,
2. Model and serial number of the product under
warranty, and
3. Repair instructions and/or specific problems
relative to the product.
FOR NON-WARRANTY REPAIRS, consult
OMEGA for current repair charges. Have the
followinginformation available BEFORE con
tacting OMEGA:
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the latest in technology and engineering.
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Copyright 1996 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced,
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OMEGA ENGINEERING, INC.

Features
lAvailable for J, K, N, R, S, & T Thermocouples.
lField Programmable Input and Output Ranges.
lBi-Polar Input and Output Ranges.
lIsolated Input to Output 1.6kV.
lHighAccuracy.
lLinear With Temperature.
lInternal Cold Junction Compensation.
lUniversal AC/DC Power Supply.
lCompact DIN Rail Mount Enclosure.
lAvailable Standard or Special Calibration.
TX801TC Programmable Isolating
Thermocouple Transmitter
QualityAssuranceProgramme.
The modern technology and strict procedures of the ISO9001 Quality Assurance Programme applied during design,
development,productionand finalinspectiongrant longtermreliability oftheinstrument.
Programmable Isolating
Thermocouple Input to DC Current
or DC Voltage Output Transmitter.
TX801TCSpecifications.
Input
Note1: The inputrange must
bewithin thespecified
min / max range of
thethermocoupletype.
Note2:Each TX801TCisonly
rangeablewithinthe
specified'Thermo-
coupleType'. -Impedances 1MΩMin.InputImpedance.
100ΩMax.ThermocoupleLeadResistance.
Output -Voltage FieldProgrammable From±500mVdcto±12Vdc.
MaximumOutput Drive= 10mA.
-Current FieldProgrammable From±1mAdc to±20mAdc.
MaximumOutput Drive =10Vdc. (500Ω@20mA.)
UniversalP/S -StandardHigh(H) 70~270Vacand 80~380Vdc;50/60Hz;4VA.
-StandardMid(M) 24~80Vac and20~90Vdc; 50/60Hz; 4VA.
-LowVoltage(L) 8~30Vac and 8~30Vdc; 50/60Hz; 4VA.
-CircuitSensitivity <±0.001%/V FSO Typical.
ColdJunctionCompensationAccuracy. <0.03C/C(0.06F/F)Typical.
Repeatability <±0.1% FSO Typical.
AmbientDrift <±0.01%/C FSOTypical.
NoiseImmunity 125dBCMRR Average.(1.6kVPeakLimit.)
R.F. Immunity <1% Effect FSO Typical.
IsolationVoltage 1.6kVac/dc Input to Output for 60sec.
ResponseTime 200msec Typical. (From 10 to 90% 50msec Typical.)
OperatingTemperature 0~70C.
StorageTemperature -20~80C.
OperatingHumidity 90%Max.RHNon-Condensing.
Construction SocketPlug-InTypeWithBarrier Terminals.
Note 1. Specifications based on Standard Calibration Unit, unless otherwise specified.
Note 2. Due to ongoing research and development, designs, specifications, and documentation are subject to change without notification.
No liability will be accepted for errors, omissions or amendments to this specification.
epyTelpuocomrehT segnaRtupnIelbammargorPdleiF dnaytiraeniL :ycaruccA
epyT noitacificepS )C(egnaR noitacificepS )F(egnaR tesffOoreZ )oreZ-nI.xaM(napS )F2±(C1±,%
)C(.niM )C(.xaM )F(.niM )F(.xaM )C(.niM )C(.xaM )F(.niM )F(.xaM
J008~00051~0 00060 00110020080040051 52.0
K 0021~0 0022~0 0 0001 0 0081 002 0021 004 0022 52.0
N0021~00022~0 000010008100200210040022 52.0
R 0071~004 0013~057 0 0031 0 0042 004 0071 057 0013 5.0
S0071~0040013~057 000310004200400710570013 5.0
T 002~001- 004~051- 001- 001 051- 002 001 003 002 055 5.0
The Proper Installation & Maintenance of TX801TC.
MOUNTING.
(1) Mount in a clean environment in an electrical cabinet on 35mm, symetrical, mountingrail.
(2) Do notsubjecttovibration or excess temperatureorhumidityvariations, and avoid mountingincabinetswith
power control equipment.
(3) To maintain compliance with the EMC Directives the TX801TC must bemounted in a fullyenclosedsteel
cabinet. The cabinet must be properly earthed, with appropriate input / output entry points and cabling.
WIRING.
(1) Areadilyaccessibledisconnectdeviceandovercurrentdevicemustbeincorporatedinthethepower
supply wiring.
(2) AlloutputcablesshouldbegoodqualityoverallscreenedINSTRUMENTATIONCABLEwiththescreenearthed
atoneendonly.
(eg. Austral Standard Cables B5102ES.)
(3) It is recommended that you do not ground current loops and use power supplies with ungrounded outputs.
(4) Lightning arrestors should be used on inputs and outputs when there is a danger from this source.
THERMOCOUPLES.
(1) Avoid locating thethermocouplewhereitwillbe in a direct flame.
(2) Neverinsertaporcelain or refactory tubesuddenlyin a hot area.Pre-heatgradually while installing.
(3) Locate it where the average temperature will be measured. It should be representative of the mass.
(4) Immersethethermocoupleenoughsothatthemeasuringjunctionisentirelyinthetemperaturetobemeasured:
nine to ten times the diameter of the protection tube is recommended. Heat that is conducted away from the
junction causes an error in reading.
(5) Ifthethermocoupleismountedhorizontallyandthetemperatureisabovethesofteningpointofthetube,asupport
shouldbeprovided to prevent the tubesagging.Otherwiseinstall the tube vertically.
(6) Keepthejunctionheadandcoldjunctionintheapproximationoftheambienttemperature.EspeciallyintheNoble
MetalClass.
EXTENSION WIRE.
(1) Use the correct thermocouple extension or compensation cable. i.e. Thermocouple type, insulation type,
correct colour coding.
(2) Ifpossibleinstallextensionorcompensationcableinagroundedconduit.Neverrunelectricalwiresinthesame
conduit.
(3) All wires that must be spliced should be soldered, or the correct termination block used.
COMMISSIONING.
(1) Onceallthe aboveconditions havebeenmet andthewiringcheckedapply powertothe TX801TCand allow
five minutes to stabilize.
(2) If the inputrangehasbeenaltered from factory setting, the TX801TC should bere-calibrated.
(3) Duetothelimitsoferrorinastandardthermocoupleprobeandextensionwire,anerrorcanoccur.(eg.ForType
Kan errorof 2.2C or0.75%ofSpan canoccur. {whichever isgreater}) Toremovethiserroruseacalibration
standardthermocouple at thesame immersiondepth andadjustthe Zero trimpot onthetopof theTX801TC
enclosurewithasmallscrewdriveruntil the two levels agree. (Clockwise to increase the output reading
and anti-clockwise to decrease the output reading.)
MAINTENANCE.
(1) Replace defective protection tubes.
(2) Check out extension and compensating cable circuits.
(3) Repeat (3) of Commissioning.
(4) Do it regularly - at least once every 6 months.
8PFAOctal Termination Base
11.02-3
2 1
8 7
3 4
5 6
40mm
50mm
80mm
8.4mm
2 x 4.5mm
Dimensions and Mounting. 80mm
Side View
120mm
Top View
51mm
84mm
80mm
100mm
Top View
58mm
Minimum distance
between units.

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J K N R S T
Y)NAPS( 00060006000600061000610003
Z)OREZ( 52 52 52 333.33 333.33 2
TUPNI EGNAR )C( TUPNI EGNAR )F(
EPYTELPUOCOMREHTN,K,JsepyT S,RepyT TepyT
NAPS-3S OREZ-4S 5S NAPS-3S OREZ-4S 5S NAPS-3S OREZ-4S 5S
1 2 3 4 5 6 1 2 3 4 5 6 1 1 2 3 4 5 6 1 2 3 4 5 6 1 1 2 3 4 5 6 1 2 3 4 5 6 1
001~0002~0 110000111111x ------------- 100001111111x
521~0 052~0 1 1 1 1 0 0 1 1 1 1 1 1 x - - - - - - - - - - - - - 1 1 1 0 0 1 1 1 1 1 1 1 x
051~0003~0 111010111111x ------------- 110101111111x
002~0 004~0 1 0 0 0 0 1 1 1 1 1 1 1 x - - - - - - - - - - - - - 0 0 0 0 1 1 1 1 1 1 1 1 x
052~0005~0 111001111111x ------------- -------------
003~0 006~0 1 1 0 1 0 1 1 1 1 1 1 1 x - - - - - - - - - - - - - - - - - - - - - - - - - -
004~0008~0 000011111111x 111010111111x -------------
005~0 0001~0 1 1 0 0 1 1 1 1 1 1 1 1 x 1 1 1 1 1 0 1 1 1 1 1 1 x - - - - - - - - - - - - -
006~00021~0 101011111111x 001001111111x -------------
057~0 0051~0 1 1 1 0 1 1 1 1 1 1 1 1 x 0 1 0 1 0 1 1 1 1 1 1 1 x - - - - - - - - - - - - -
008~00061~0 111011111111x 110101111111x -------------
0001~0 0002~0 1 0 0 1 1 1 1 1 1 1 1 1 x 1 1 1 1 0 1 1 1 1 1 1 1 x - - - - - - - - - - - - -
0021~00042~0 010111111111x 010011111111x -------------
0041~0 0082~0 - - - - - - - - - - - - - 0 0 1 0 1 1 1 1 1 1 1 1 x - - - - - - - - - - - - -
0061~00023~0 ------------- 101011111111x -------------
0071~0 - - - - - - - - - - - - - 0 1 1 0 1 1 1 1 1 1 1 1 x - - - - - - - - - - - - -
05~05- 001~001- ------------- ------------- 1 0 0 0 0 1 0 1 1 0 0 11
001~001- 002~002- - - - - - - - - - - - - - - - - - - - - - - - - - - 0 0 0 0 1 1 1 0 1 1 0 0 1
002~001- 004~002- ------------- ------------- 1 0 1 0 1 1 1 0 1 1 0 01
002~001 004~002 1 1 0 0 0 0 1 1 0 1 1 1 0 - - - - - - - - - - - - - 1 0 0 0 0 1 1 0 1 1 0 0 0
005~002 0001~004 1 1 0 1 0 1 1 1 1 0 1 1 0 ------------- -------------
008~005 0061~0001 1 1 0 1 0 1 1 1 0 1 0 1 0 - - - - - - - - - - - - - - - - - - - - - - - - - -
0021~006 0042~0021 1 0 1 0 1 1 1 1 1 0 0 1 0 0 0 1 0 0 1 1 0 1 1 0 1 0 -------------
0071~0001 - - - - - - - - - - - - - 0 0 0 1 0 1 1 0 0 0 0 1 0 - - - - - - - - - - - - -
hctiwSnoitcnuF-5S
1-5S .evobaepyTelpuocomrehTni1-5SotrefeR
2-5S .FFO2-5ShctiwsevirdliafrosneselacsnwodroF.NO2-5ShctiwsevirdliafrosneselacspuroF
3-5S .FFO3-5StessuicleCroF.NO3-5StestiehnerhaFroF
tuptuO )V(egnaR NAPS-1S noitcnuF-2S tuptuO )I(egnaR NAPS-1S noitcnuF-2S
1 2 3 4 5 6 1 2 3 4 1 2 3 4 5 6 1 2 3 4
Vm005~0 011111 0011 Am1~0 011111 0000
V1~0 1 0 1 1 1 1 0 0 1 1 Am2~0 1 0 1 1 1 1 0 0 0 0
V2~0 110111 0011 Am5~0 010111 0000
V3~0 1 0 0 1 1 1 0 0 1 1 Am01~0 1 0 1 0 1 1 0 0 0 0
V4~0 111011 0011 Am61~0 111101 0000
V5~0 1 0 1 0 1 1 0 0 1 1 Am02~0 1 1 0 1 0 1 0 0 0 0
V6~0 110011 0011 Am5~1 110111 1000
V8~0 1 1 1 1 0 1 0 0 1 1 Am01~2 1 1 1 0 1 1 1 0 0 0
V01~0 110101 0011 Am02~4 111101 1000
V21~0 1 1 1 0 0 1 0 0 1 1 Am1~1- 1 0 1 1 1 1 0 1 0 0
V5~1 111011 10 11 Am2~2- 110111 0100
V01~2 1 1 1 1 0 1 1 0 1 1 Am5~5- 1 0 1 0 1 1 0 1 0 0
V1~1- 110111 0111 Am01~01- 110101 0100
V2~2- 1 1 1 0 1 1 0 1 1 1 Am02~02- 1 1 1 0 1 0 0 1 0 0
V5~5- 110101 0111 *Am01-~0 10 1011 0000
V01~01- 1 1 1 0 1 0 0 1 1 1 *Am02-~0 1 1 0 1 0 1 0 0 0 0
V21~21- 111100 0111
*V5-~0 1 0 1 0 1 1 0 0 1 1
*V01-~0 110101 0011
OutputRange ProgrammingTable.
Notes: 1/ Switch status 1 = ON 0 = OFF.
2/ Outputranges with'*' beside themreverse thepolarity of theoutput connections.
TX801TC Input Range Programming Table.
Note: Switch status: 1 = ON, 0 = OFF, X = DON'T CARE.
TX801TC Input Programming.
Alwaysset OUTPUT range first, thenINPUT range.
If the required input range is not listed in the table
below,use thefollowing formulaeto calculatethe
correct Zero and Span DIP switch settings.
SPAN = Maximum Input - Zero Offset
deg C SPAN GAIN = Y .deg F SPAN GAIN = 2 x Y .
SPAN SPAN
deg C ZERO GAIN = ZeroOffset deg F ZERO GAIN = ZeroOffset
Z 2 x Z
IfZero is: 1/ Positive, put S5-1 OFF. 2/ Negative, putS5-1 ON.
Sensor Fail: 1/ For downscale sensor fail drive put S1-8 OFF. 2/ For upscale sensor fail drive put S1-8 ON.
e.g. ForTypeK200~600C: SPAN = 600 - 200 = 400C. ZEROOFFSET=200C.
1/ From the tables, SPAN GAIN = 6000 = 15 = 1+2+4+8+0+0 => S3 = 0 0 0 0 1 1
400
2/ ZERO GAIN = 200 = 8 = 0+0+0+8+0+0 => S4 = 1 1 1 0 1 1
25
3/ Positive Zero => S5-1 OFF Upscale Sensor Fail => S5-2 ON
Note: (a) Enter the Zero or Span gain value into the appropriate Zero or Span DIP switch.
(b) If the ZERO GAIN exceeds 63, then the input range must be factory calibrated.
So if a gain value of 28 is required, put DIP switch No's 3, 4, 5 OFF (ie, gains of
4 + 8 + 16 = 28) and all the other DIP switches ON.
DIP switches and trimpots are accessed by removing the small rectangular
lid on the top of the TX801TC enclosure.
eulaVniaG 1 2 4 8 61 23
.oNhctiwSPID 123456
Examples of Input Connections.
3 + T/C
4 - T/C
5
6
TX801TC 2
1
8
7
−
+
∼
−
∼
+
Terminations.
Output 1 +Ve
2 -Ve
Input 3 +T/C
4 -T/C
P/S 7 ~AC / +DC
8 ~AC / -DC
1600V Isolation
AC/DC Power
Source.
-
+
Eg. Indicator,PLC etc.
With Voltage or
Current Input.
~
~
-
+
ON
1
2
3
4
5
6
S1-Span
ON
1
2
3
4
S2-Function
OFF ON
Gain = 1 Gain = 0
Gain = 2 Gain = 0
Gain = 4 Gain = 0
Gain = 8 Gain = 0
Gain =16 Gain = 0
Gain =32 Gain = 0
25 Turn Trimpot
for Span ±10%
OFF ON
0% Offset +20% Offset
0% Offset -50% Offset
Current O/P Voltage O/P
Current O/P Voltage O/P
Zero
25 Turn Trimpot
for Zero ±10%
PlanView ofTX801TCAdjustments. TX801TC H1Power Supply LinkSettings.
OUTPUTPROGRAMMING INPUT PROGRAMMING
Span
6
5
4
3
2
1
ON
OFF ON
Gain = 32 Gain = 0
Gain = 16 Gain = 0
Gain = 8 Gain = 0
Gain = 4 Gain = 0
Gain = 2 Gain = 0
Gain = 1 Gain = 0
S3-Span
6
5
4
3
2
1
ON
S4-Zero
OFF ON
Gain = 32 Gain = 0
Gain = 16 Gain = 0
Gain = 8 Gain = 0
Gain = 4 Gain = 0
Gain = 2 Gain = 0
Gain = 1 Gain = 0
S5-Function
4
3
2
1
ON
S
Z
OFF ON
NOT USED NOT USED
Celcius Fahrenheit
Downscale Upscale Break
Poss Zero Neg Zero
Power Supply Output
Input
sgnitteSkniLylppuSrewoP
1H egnaRegatloVylppuSrewoP
HcdV083~08/caV072~07:hgiHrofkniL
M cdV09~02/caV08~42:diMrofkniL
WARNING: High Voltages Maybe Present.
Only adjust link with power
disconnected.
Notes:
1/ H1 is approx 4cm (1½") behind the 'S' trimpot.
2/ Exceeding voltage ranges may damage the unit.
3/ Ensure the enclosure label is correctly labelled for the
link position.
4/ Adjust H1 jumper with a pair of needle nose pliers.
5/ Low Voltage Power Supply version is fixed, and has
no link. This must be ordered separately.
S2-FUNCTS1-SPAN S Z
H
M
H1
H
M
MID HIGH