Rockwell Automation 1794-IT8,D17946.5.7 Thermocouple/Millivolt Input Module - Manual (Page 57)

Specifications A–3
Publication 1794-6.5.7 – March 1997 Template revised June 23, 1995
User Applied 24V dc Supply versus Ambient Temperature
19.2
24.0
31.2
25 o C 40 o C 50 o C 55 o C
User
Applied 24V dc Supply
Ambient Temperature
The area within the curve represents the safe
operating range for the module under various
conditions of user supplied 24V dc supply
voltages and ambient temperatures.
= Safe operating area
Resolution Curves for Thermocouples
Type B Thermocouple
10–100Hz 250Hz 500Hz 1000Hz
Resolution
C
F
0.80
1.44 6.40
11.52
25.60
46.08 102.4
184.3
0.70
1.26 5.60
10.08
22.40
40.32 89.60
161.3
0.60
1.08 4.80
8.64 19.20
34.56 76.80
138.2
0.50
0.90 4.00
7.20 16.00
28.80 64.00
115.2
0.40
0.72 3.20
5.76 12.80
23.04 51.20
92.16
0.30
0.54 2.40
4.32 9.60
17.28
38.40
69.12
0
–300
–508 –150
–238 0
32
150
302 300
572 450
842 1500
2732
750
1382
900
1652
1050
1922
1200
2192
Temperature
C
F
0.20
0.36 1.60
2.88 6.40
11.52
25.60
46.08
0.10
0.18 0.80
1.44 3.20
5.76 12.80
23.04
600
1112
1350
2462
1800
3272
1650
3002
Derating Curve