Omega Engineering TX801R User manual

An OMEGA Technologies Company
User'sGuide
http://www.omega.com
e-mail:[email protected]
TX801R SERIES
PROGRAMMABLE ISOLATING
RESISTANCE TRANSMITTER
Where Do I Find Everything I Need for
Process Measurement and Control?
OMEG ...Of Course!
TEMPER TURE
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M3470/0302
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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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OMEGA’s customers receive maximum coverage on each product.
If the unit should malfunction, it must be returned to the factory for evaluation. OMEGA’s Customer Service
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FOR WARRANTY RETURNS, please have the
followinginformation availableBEFORE contact-
ingOMEGA:
1. P.O. numberunder whichthe productwas PUR
CHASED,
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warranty, and
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relative to the product.
FOR NON-WARRANTY REPAIRS, consult
OMEGA for current repair charges. Have the
followinginformation available BEFORE con
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OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
Copyright 1996 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced,
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OMEGA ENGINEERING, INC.

TX801R Programmable
Programmable Isolating
Resistance Transmiter
Programmable, Isolating, 3 Wire
RTD Input to DC Current or DC
Voltage Output Transmitter.
QualityAssuranceProgramme.
Themoderntechnology andstrictproceduresof theISO9001QualityAssurance Programmeapplied
duringdesign,development, productionandfinalinspectiongrantlongtermreliability oftheinstrument.
Features.
lField Programmable Input and Output Ranges.
lBi-Polar Output Ranges.
lInput to Output Isolation 1.6kV.
lHighAccuracy 0.1%.
lUniversal AC/DC Power Supply.
lCompact DIN Rail Mount Enclosure.
lAvailable Standard or Special Calibration.
TX801RSpecifications.
ResistanceInput 3 Wire Resistance.
Lead Wire Resistance = 10Ω/Wire Max.
FieldProgrammableZero From5Ωto20kΩ.
FieldProgrammable SpanFrom 10Ωto20kΩ.
Suitablefor2WireConnection.(OffsetCalibrationNeeded.)
- Excitation 0.8mA for Input < 2kΩ. 0.08mA for Input >= 2kΩ.
Output -Voltage Field ProgrammableFrom500mVdcto ±12Vdc.
MaximumOutput Drive= 10mA.
-Current FieldProgrammableFrom 1mAdcto ±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%/CFSO Typical.
NoiseImmunity 125dBCMRRAverage.(1.6kVPeak Limit.)
R.F. Immunity <1% Effect FSO Typical.
IsolationVoltage 1.6kVac/dc Input to Output for 60sec.
ResponseTime 200msec Typical. (10 to 90% 50msec Typical.)
OperatingTemperature 0~70C.
StorageTemperature -20~80C.
OperatingHumidity 90%RHMax.Non-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.
The Proper Installation & Maintenance of TX801R
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 TX801R 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) For 2 wire current loops, 2 wire voltage signals or 2 wire current signals, Austral Standard Cables B5102ES is
recommended. For three wire transmitters, RTD's, and Resistance Sensors, Austral Standard Cables B5103ES is
recommended.
(5) It is recommended that you do not ground current loops and use power supplies with ungrounded outputs.
(6) Lightning arrestors should be used when there is a danger from this source.
(7) Refer to diagrams for connection information.
COMMISSIONING.
(1) Once all the above conditions have been carried out and the wiring checked apply power to the PI-K loop and allow five
minutes for it to stabilize.
(2) Due to differences in cable resistance in the resistance sensor legs or errors within the resistance sensor itself a small
error may occur (usually less than 1%). To remove this error take a low (approx 10%) and a high (approx 90%) reading
of the variable being measured by the transducer supplying the signal to the TX801R, and ensure that this agrees with
the level being indicated by the PLC or indicator, etc. that the PI-K is connected into. Adjust for any difference using
the Zero and Spantrimpots in thetop of thePI-K enclosure withasmall screwdriver, untilthe two levelsagree.(Clockwise
to increase the output reading and anti-clockwise to decrease the output reading.)
MAINTENANCE.
(1) Repeat (2) of the commisioning instructions.
(2) Do it regularly - at least once every 12 months.
2 1 8 7
3 4 5 6
40mm
50mm
80mm
8.4mm
8PFAOctal Termination Base
Dimensions and Mounting. 80mm
Side View
120mm
Top View
51mm
84mm
80mm
100mm
Top View
58mm
Minimumdistance
betweenunits.
2 x 4.5mm

1600V Isolation
Examples of Input Connection.
3
4
5
6
A
B
B
Input
Short Together
Terminals 4 & 5.
3
4
5
6
A
B
B
−
+
∼
−
∼
+
TX801R
Power Supply
Input
2
1
8
7
Output
Resistance
3 wire
Terminations.
Output 1 +Ve Input 3 A
2 -Ve 4 B
5B
P/S 7 ~AC/+DC 6 NOTUSED
8 ~AC/-DC
Resistance
2 wire
AC/DC Power
Source.
-
+
Eg. Indicator, 2100-M,
etc. With Voltage or
Current Input.
~
~
-
+
OFF ON
x1 x10
x1 x10
Not Used Not Used
0.8mA 0.08mA
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 TX801R Adjustments. TX801R H1 Power Supply Link
Settings.
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
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
egnaRtupnI (tsiseR ΩΩ
Ω
ΩΩ)napS-3S oreZ-4S noitcnuF-5S
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4
01~0 Ω110000 111111 0011
02~0 Ω1 0 0 0 0 1 1 1 1 1 1 1 0 0 1 1
22~0 Ω*00100 1 111111 0011
52~0 Ω1 1 1 0 0 1 1 1 1 1 1 1 0 0 1 1
74~0 Ω*010011 111111 0011
05~0 Ω1 1 0 0 1 1 1 1 1 1 1 1 0 0 1 1
57~0 Ω111011 111111 0011
001~0 Ω1 0 0 1 1 1 1 1 1 1 1 1 0 0 1 1
002~0 Ω10000 1 111111 0000
022~0 Ω* 0 0 1 0 0 1 1 1 1 1 1 1 0 0 0 0
052~0 Ω11100 1 111111 0000
074~0 Ω* 0 1 0 0 1 1 1 1 1 1 1 1 0 0 0 0
005~0 Ω110011 111111 0000
057~0 Ω1 1 1 0 1 1 1 1 1 1 1 1 0 0 0 0
k1~0 Ω100 11 1 111111 0000
k2~0 Ω1 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0
k2.2~0 Ω*00100 1 111111 1000
k5.2~0 Ω1 1 1 0 0 1 1 1 1 1 1 1 1 0 0 0
k7.4~0 Ω*010011 111111 1000
k5~0 Ω1 1 0 0 1 1 1 1 1 1 1 1 1 0 0 0
k5.7~0 Ω111011 111111 1000
k01~0 Ω1 0 0 1 1 1 1 1 1 1 1 1 1 0 0 0
k02~0 Ω001111 111111 1000
05~01 Ω0 0 0 0 1 1 1 0 1 1 1 1 0 0 1 1
57~52 Ω110011 010111 0011
001~05 Ω1 1 0 0 1 1 1 0 1 0 1 1 0 0 1 1
522~57 Ω110111 000011 0011
052~051 Ω1 0 0 1 1 1 1 0 0 0 0 1 0 0 1 1
005~052 Ω11100 1 0101110000
005 Ω0001~ Ω1 1 0 0 1 1 1 0 1 0 1 1 0 0 0 0
k5.1~1 Ω110011 1101010000
k4~k2 1 0 0 0 0 1 1 1 0 1 1 1 1 0 0 0
k01~k4 10 10 1 1 111011 1000
k51~k5 1 0 0 1 1 1 1 0 1 0 1 1 1 0 0 0
k02~k01 100 11 1 110101 1000
k02~k51 1 1 0 0 1 1 1 0 0 0 0 1 1 0 0 0
eulaVniaG 1 2 4 8 61 23
.oNhctiwSPID 123456
EGNARTUPNIEVITCEFFE )woLtsiseR-hgiHtsiseRei( 1-5S 2-5S 3-5S 4-5S NIAGERP
01 Ω002<egnaR=< Ω0011 1
002 Ωk2<egnaR=< Ω0 0 0 0 01
k2 Ωk02=<egnaR=< Ω1000 001
TX801R Input Programming.
Alwaysset OUTPUT range first, thenINPUT range.
If the input range is not listed in the programming
table,use the followingformulae to workout the
Zeroand Span DIPswitch settings forgain.
Span Gain = 600 x Pregain .
Resist High - Resist Low
Zero Gain = Resist Low
5 x Pregain
Note: (a) Enter Ranges with their exponential value. Eg. Enter 2kΩas 2 x 103.
(b) Use thesame pregainvaluein boththeSpan andZero gainformulae.
(c) EntertheZero orSpan gainvalueinto theappropriate Zeroor SpanDIP switch.
TX801R Input Range Programming Table.
Notes: 1/ Switch status 1 = ON, 0 = OFF, X = DON'T CARE.
2/ Input ranges with '*' beside them require more adjustment by the Zero & Span trimpot.
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-K enclosure
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 10 11 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
TX801R Output Range Programming Table.
Notes: 1/ Switch status 1 = ON 0 = OFF.
2/ Outputranges with'*' beside themreverse thepolarity of theoutput connections.