Calibration setup, Input module – Rockwell Automation 1794-IRT8XT FLEX I/O Thermocouple/RTD /Millivolt Input Module User Manual User Manual
Page 53
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
15
0
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
51
34
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
34
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
H
L
+
-
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
(-)
0
1
2
0
3
1
5
6
4
7
2
9
10
8
11
3
13
14
12
15
4
18
19
17
20
5
22
23
21
24
6
26
27
25
28
+
-
mV
1
1a
2
2a
1
2
4-wire
RTD
Millivolt
45358