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Publication 1794-6.5.12 - September 2011
Calibrate Your Module 41
Calibration Setup
Wiring Connections for Calibrating the Thermocouple and RTD Input Module
1
2
3
4 5 6 7 8 9 10 11 12 13 14 150
Using Precision Resistors -
for 383 Ω and 100 Ω calibration
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33
16
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 5134
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 3316
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1234567891011121314150
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 5134
1794-TB3G
Precision Voltage Source
Using Precision Voltage Source -
for offset and gain calibration
+-
Connect + to terminals 2, 6, 10, 14, 19, 23, 27, and 31
Connect - to terminals 3, 7, 11, 15, 20, 24, 28 and 32
Connect one 10 K Ω, 0.5% resistor across terminals 37 and 39 and another across 46 and 48.
45357
Type of Input Connect the following
HL+-Shield
RTD – 4-wire 1a 2a 1 2
Millivolt 1 2
Wiring to the 1794-TB3G and 1794-TB3GS Terminal Base Units
RTD or
Thermocouple
Channel
1794-TB3G and 1794-TB3GS Terminal Base Units
(1)
High Signal
Terminal (H)
Low Signal
Terminal (L)
RTD Source
Current (+)
Signal Return
(-)
01203
15647
2910811
313141215
418191720
522232124
626272528
+
-
mV
1
1a
2
2a
1
2
4-wire
RTD
Millivolt
45358