II - DCE FEL ČVUT v Praze

Error limits of analog inputs for thermocouples
(at 25oC ambient temperature and
100 ms integration time)
Type Temperature range Basic
error 1)
T -150 o C .... +400 o C
-230 o C .... -150 o C
U -50 o C .... +400 o C
-200 o C .... -50 o C
E -100 o C .... +1000 o C
-200 o C .... -100 o C
J -150 o C .... +1200 o C
-210 o C .... -150 o C
L -50 o C .... +1200 o C
-200 o C .... -50 o C
K -100 o C .... +1372 o C
-220 o C .... -100 o C
N -50 o C .... +1300 o C
-150 o C .... -50 o C
R +200 o C .... +1769 o C
-50 o C .... +200 o C
S +100 o C .... +1769 o C
-50 o C .... +100 o C
B +700 o C .... +1820 o C
+500 o C .... +700 o C
+200 o C .... +500 o C
0.2K
1K
0.2K
1K
0.2K
1K
0.2K
0.5K
0.2K
1K
0.2K
1K
0.2K
1K
0.3K
1K
0.3K
1K
0.3K
0.5K
3K
I/O Modules with Intrinsically-Safe Signals
C79000-G7076-C152-04
Temperature
error 2)
[ o C/K]
0.006
0.006
0.0075
0.02
0.02
0.018
0.025
0.025
0.025
0.04
Error limits of analog inputs for thermal resistors
(at 25oC ambient temperature and
100 ms integration time)
Type Temperature range Basic
error 1)
Pt 100 -200 o C ....+325 o C
Climatic
Pt 200 -200 o C ....+325 o C
Climatic
Ni 100 -60 o C ....+250 o C
Climatic
Pt 100 -200 o C ....+850 o C
Standard
Pt 200 -200 o C ....+850 o C
Standard
Ni 100 -60 o C ....+250 o C
Standard
SIMATIC S7 Ex Analog Modules
Temperature
error 2)
[ o C/K]
0.05K 0.006
0.05K 0.006
0.05K 0.003
0.2K 0.01
0.2K 0.01
0.1K 0.003
Error limits of analog inputs for resistance sensors
(at 25oC ambient temperature and
100 ms integration time)
Type Resistant sensor Basic
error 3)
Temperature
error 2)
[%/K]
150 0.000 ...176.383 0.006% 0.001
300 0.000 ...352.767 0.006% 0.001
6000.000 ...705.534 0.006% 0.001
1) The basic error includes the linearization error of the voltage temperature conversion and the basic error of the
analog/digital conversion at Tu = 25oC. 2) The total temperature error = temperature error x max. ambient temperature change Tu as temperature difference
with respect to 25oC .
3) The basic error includes the error in % of the measuring range of the analog/digital conversion at Tu = 25oC. The operating error for the use of thermocouples/thermal resistors consists of:
– Basic error of analog input at Tu = 25oC – Total temperature error
– Errors which occur due to compensation of the reference junction temperature
– Error of the thermocouple/thermal resistor used
The operating error for use of resistant sensors consists of:
– Basic error of analog input at Tu = 25oC – Total temperature error
– Error of sensor used
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