Omega Engineering TX801D RTD SERIES User manual

An OMEGA Technologies Company
User'sGuide
http://www.omega.com
e-mail:[email protected]
TX801D RTD SERIES
PROGRAMMABLE ISOLATING
DIFFERENTIAL RTDTRANSMITTER
Where Do I Find Everything I Need for
Process Measurement and Control?
OMEG ...Of Course!
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omega.comTM
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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
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ingOMEGA:
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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.

TX801D RTD Programmable
Programmable Isolating
Differential RTD Transmiter
Programmable, Isolating, 3 Wire
RTD Input to DC Current or DC
Voltage Output Transmitter.
QualityAssuranceProgramme.
Themoderntechnology andstrictproceduresof theISO9001QualityAssurance Programmeapplied
duringdesign,development, productionandfinalinspectiongrant longtermreliability oftheinstrument.
Features.
lField Programmable Input and Output Ranges.
lBi-Polar Input and Output Ranges.
lIsolated Input to Output 1.6kV.
lHigh Accuracy & Linearity to 0.1%.
lLinear With Temperature.
lUniversal AC/DC Power Supply.
lCompact DIN Rail Mount Enclosure.
lAvailable Standard or Special Calibration.
ISO9001
E
G
I
S
T
E
R
R
E
D
S
U
P
P
I
R
E
L
Specifications.
RTDInput Pt100DIN(2WireType)Standard.
SensorCurrent = 0.8mATypical.
FieldProgrammableZeroFrom-200C(-400F)to200C(400F).
FieldProgrammableSpanFrom20C(40F)to600C(1200F).
OtherTypesofRTDAvailable:
JISPt100, Pt250,Pt500, Pt1000,CU10, CU100, Ni100or Specified.
Output -Voltage FieldProgrammableFrom 500mVdcto±12Vdc.
MaximumOutput Drive= 10mA.
-Current FieldProgrammableFrom1mAdc 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.
Accurate to <±0.1% FSO Typical.
Linearity &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 60 sec.
ResponseTime 200msec Typical. (10 to 90% 50msec Typical.)
OperatingTemperature 0~70C.
StorageTemperature -20~80C.
OperatingHumidity 90%RHMax.Non-Condensing.
Construction SocketPlug-InTypewithBarrierTerminals.
Note 1. Specifications based on Standard Calibration Unit, with RTD 2 at 0C, 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.
2 1 8 7
3 4 5 6
40mm
50mm
80mm
8.4mm
2 x 04.5mm
8PFAOctal Termination Base
Dimensions and Mounting. 80mm
Side View
120mm
Top View
51mm
84mm
80mm
100mm
Top View
58mm
Minimumdistance
betweenunits.
The Proper Installation & Maintenance
MOUNTING.
(1) Mount in a clean environment in an electrical cabinet on 35mm, symetrical, mounting rail.
(2) Do not subject to vibration or excess temperature or humidity variations.
(3) Avoid mounting in cabinets with power control equipment.
(4) To maintain compliance with the EMC Directives the TX801D RTD is to be mounted in a fully enclosed steel cabinet. The
cabinet must be properly earthed, with appropriate input / output entry points, filtering and cabling.
WIRING.
(1) A readily accessible disconnect device and overcurrent device must be incorporated in the the power supply wiring.
(2) All cables should be good quality overall screened INSTRUMENTATION CABLE with the screen earthed at one end only.
(3) Signal cables should be laid a minimum distance of 300mm from any power cables.
(4) For2wire current loopsand 2wire RTDs,AustralStandard Cables B5102ES isrecommended. For threewiretransmitters
and 3 wire RTDs Austral Standard Cables B5103ES is recommended.
(5) For differential 2-wire RTD measurement it is important to use identical cables and keep them the same length, so errors
due to cable length are kept minimal.
(6) It is recommended that you do not ground current loops and use power supplies with ungrounded outputs.
(7) Lightning arrestors should be used when there is a danger from this source.
(8) Refer to diagrams for connection information.
RTD'S.
(1) Avoid locating the RTD where it will be in a direct flame.
(2) Locate it where the average temperature will be measured. It should be representative of the mass.
(3) Immerse the RTD so that the measuring point is entirely in the temperature to be measured; 9 to 10 times the diameter
of the protection tube is recommended. Heat that is conducted away from the measuring point causes an error in reading.
COMMISSIONING.
(1) Once all the above conditions have been carried out and the wiring checked apply power and allow five minutes for it
to stabilize.
(2) Due to differences in cable resistance in the RTD legs or errors within the RTD itself a small Zero error may occur (usually
less than 1C). To remove this error use two calibration standard RTDs at the same immersion depths and adjust the
Zero trimpot in the top of the enclosure with a small screwdriver, until the two levels agree. (Clockwise to increase the
output reading and anti-clockwise to decrease the output reading.)
MAINTENANCE.
(1) Check RTDs in place - with the calibration RTDs
at the same immersion depths.
(2) Do it regularly - at least once every 6 months.
(3) Replace defective protection tubes - even if they
look good they may not be fluid or gas tight.
(4) Check cables entering the RTD sensor heads.

CegnaRtupnI FFO2-5StuP FegnaRtupnI NO2-5StuP napS-3S oreZ-4S noitcnuF-5S
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4
C02~0F04~0 110000 111111X
C52~0 F05~0 1 1 1 1 0 0 1 1 1 1 1 1 X
C03~0F06~0 111010 111111X
C04~0 F08~0 1 0 0 0 0 1 1 1 1 1 1 1 X
C05~0F001~0 111001 111111X
C06~0 F021~0 1 1 0 1 0 1 1 1 1 1 1 1 X
*C07~0*F041~0 011101 111111X
C57~0 F051~0 1 1 1 1 0 1 1 1 1 1 1 1 X
C08~0F061~0 000011 111111X
C09~0 F081~0 0 1 0 0 1 1 1 1 1 1 1 1 X
*C001~0*F002~0 110011 111111 X
C011~0 F022~0 0 0 1 0 1 1 1 1 1 1 1 1 X
C021~0F042~0 10 10 11 111111X
*C521~0 *F052~0 1 0 1 0 1 1 1 1 1 1 1 1 X
C051~0F003~0 111011 111111X
C002~0 F004~0 1 0 0 1 1 1 1 1 1 1 1 1 X
*C052~0*F005~0 010111 111111X
C003~0 F006~0 1 1 0 1 1 1 1 1 1 1 1 1 X
C004~0F008~0 001111 111111X
C006~0 F0021~0 1 0 1 1 1 1 1 1 1 1 1 1 X
C01~01-F02~02- 110000 101111 1
C02~01- F04~02- 1 1 1 0 1 0 1 0 1 1 1 1 1
C04~01-F08~02- 111001 101111 1
C02~02- F04~04- 1 0 0 0 0 1 1 1 0 1 1 1 1
C03~02-F06~04- 111001 110111 1
C52~52- F05~05- 1 1 1 0 0 1 0 1 0 1 1 1 1
C05~52-F001~05- 111101 010111 1
C02~03- F04~06- 1 1 1 0 0 1 1 0 0 1 1 1 1
C05~05-F001~001- 110011 101011 1
C001~05- F002~001- 1 1 1 0 1 1 1 0 1 0 1 1 1
C051~05-F003~001- 100111 101011 1
C001~001- F002~002- 1 0 0 1 1 1 1 1 0 1 0 1 1
C002~001-F004~002- 110111 110101 1
C002~002- F004~004- 0 0 1 1 1 1 1 1 1 0 1 0 1
C004~002-F008~004- 101111 111010 1
C04~02 F08~04 1 1 0 0 0 0 1 1 0 1 1 1 0
C001~05F002~001 111001 10 10 11 0
C051~05 F003~001 1 1 0 0 1 1 1 0 1 0 1 1 0
C002~001F004~002 110011 1101010
C005~001 F0001~002 0 0 1 1 1 1 1 1 0 1 0 1 0
InputProgramming.
Alwaysset OUTPUT range first, thenINPUT range.
IftheInputrangeisnotlistedintheprogrammingtable,usethefollowingformulaetoworkouttheZeroandSpanDIPswitch
settingsfor gain.
DegCSpanGain= 1200 DegFSpainGain = 2400
deg C High - deg C Low deg F High - deg F Low
DegCZeroGain= deg C Low DegF Zero Gain = deg F Low
5 10
IfZero is: 1/ Positive, put S5-1 OFF. 2/ Negative, put S5-1 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.
Input Range Programming Table.
Notes: 1/ Switch status 1 = ON, 0 = OFF, X = DON'T CARE.
2/ Inputranges with '*'beside them requiremore adjustmentby the Spantrimpot.
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 PI-N enclosure
SET TO '0' FOR CELCIUS. SET TO '1' FOR FAHRENHEIT.
Set to '1' for UPSCALE Sensor Break. Set to '0' for DOWNSCALE Sensor Break.
Set to '0' for UPSCALE Sensor Break. Set to '1' for DOWNSCALE Sensor Break.
eulaVniaG 1 2 4 8 61 23
.oNhctiwSPID 123456
OutputRange ProgrammingTable.
Notes: 1/ Switch status 1 = ON 0 = OFF.
2/ Outputranges with'*' beside themreverse thepolarity of theoutput connections.
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
Terminations.
Output 1 +Ve Input 3 A
2 -Ve 4 B
P/S 7 ~AC/+DC 5 A
8 ~AC/-DC 6 B RTD2
RTD1
3
4
5
6
A
B
A
B
Power Supply
Input
2
1
8
7
Output
RTD1
2 wire
RTD2
2 wire
−
+
∼
−
∼
+
1600V Isolation
AC/DC Power
Source.
-
+
Eg. Indicator, 2100-M,
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%
Plan View of Adjustments. H1 Power Supply Link Settings.
OUTPUTPROGRAMMING INPUT PROGRAMMING
Span
S
Z
10.04-2
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
OFF ON
DownscaleUpscale
Upscale Downscale
CF
Poss Zero Neg Zero
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