Analog modules
6.11 Analog input module SM 331, AI 6 x TC isolated (6ES7331-7PE10-0AB0)
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
419
Basic error limit (operational limit at 25 °C, relative to the measurement range end value in the selected input range)
Voltage input
• ± 25 mV
• ± 50 mV
• ± 80 mV
• ± 250 mV
• ± 500 mV
• ± 1 V
± 0.04%
± 0.03%
± 0.03%
± 0.02%
± 0.02%
± 0.02%
(5)
Type T
Type U
Type E
Type J
Type L
Type K
Type N
Type R
Type S
-50 °C to +100 °C ± 1.5 °C
Type B
(5)
Type C
Type TxK/XK(L)
The accuracy of the temperature measurement with
internal
compensation (terminal temperature)
is derived from:
(4) (6)
• Error for the analog input of the type of thermocou-
ple used
• Measuring accuracy for the temperature of the
internal reference junction ± 1.5 K