Rockwell Automation 1794-IT8,D17946.5.7 Thermocouple/Millivolt Input Module User Manual
Page 63
Specifications
A–9
Publication 1794-6.5.7 – March 1997
Template revised June 23, 1995
Error Due to Open Circuit Current Through Loop Resistance
Input Type
Error per Ohm of Loop Resistance
B
0.091
o
C
0.164
o
F
E
0.013
o
C
0.023
o
F
J
0.016
o
C
0.029
o
F
K
0.024
o
C
0.043
o
F
R
0.076
o
C
0.137
o
F
S
0.083
o
C
0.149
o
F
T
0.022
o
C
0.040
o
F
N
0.028
o
C
0.050
o
F
C
0.055
o
C
0.099
o
F
L
0.015
o
C
0.028
o
F
mV
0.417
µ
V (2.4
Ω
= 1 LSB of error)
Worst Case Repeatability for the Thermocouple/mV Input Module
Input Type
Repeatability with Filter
(o
C) (
o
F)
Repeatability without Filter
(
o
C) (
o
F)
B
+1.00
o
C
+1.80
o
F
+2.00
o
C/
o
C
+3.60
o
F/
o
F
E
+0.16
o
C
+0.29
o
F
+0.32
o
C/
o
C
+0.58
o
F/
o
F
J
+0.20
o
C
+0.36
o
F
+0.40
o
C/
o
C
+0.72
o
F/
o
F
K
+0.28
o
C
+0.50
o
F
+0.56
o
C/
o
C
+1.00
o
F/
o
F
R
+1.10
o
C
+1.98
o
F
+2.20
o
C/
o
C
+3.96
o
F/
o
F
S
+1.00
o
C
+1.80
o
F
+2.00
o
C/
o
C
+3.60
o
F/
o
F
T
+0.27
o
C
+0.54
o
F
+0.54
o
C/
o
C
+1.08
o
F/
o
F
N
+0.34
o
C
+0.61
o
F
+0.68
o
C/
o
C
+01.22
o
F/
o
F
C
+0.13
o
C
+0.23
o
F
+0.26
o
C/
o
C
+0.46
o
F/
o
F
L
+0.19
o
C
+0.30
o
F
+0.37
o
C/
o
C
+0.62
o
F/
o
F
mV
+12
µ
V
+12
µ
V
+24
µ
V/
o
C
+24
µ
V/
o
F
Note: The filter is enabled by setting bit 02 in write word 0.
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