Derating Curve; Resolution Curves For Thermocouples; Type B Thermocouple - Allen-Bradley 1794-IT8 User Manual

Derating Curve

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

C
Resolution
F
1000Hz 500Hz 250Hz 10–100Hz
102.4 25.60 6.40 0.80
184.3 46.08 11.52 1.44
89.60
22.40 5.60 0.70
161.3 10.08
40.32 1.26
76.80
19.20 4.80 0.60
138.2
34.56 8.64 1.08
64.00
16.00 4.00 0.50
115.2
28.80 7.20 0.90
51.20
12.80 3.20 0.40
92.16 23.04 5.76 0.72
38.40 9.60 2.40 0.30
69.12
17.28 4.32 0.54
25.60
6.40 1.60 0.20
46.08
11.52 2.88 0.36
12.80
3.20 0.80 0.10
23.04 5.76 1.44 0.18
0
Template revised June 23, 1995
User Applied 24V dc Supply versus Ambient Temperature
31.2
24.0
19.2

Type B Thermocouple

–300 0
–150 150
300
–508 32
–238 302 572
o o
25 C 40
Ambient Temperature
900
450 600 750 1050
1652 1922
842 1112 1382
C
Temperature
F
Specifications A–3
o o
C 50 C 55 C
1200
1350 1500 1650 1800
2462
2192 2732 3002 3272
Publication 1794-6.5.7 – March 1997