D300529 0115 - BL67 I/O modules
6-35
BL67-2AI-TC, thermo couples
Crosstalk suppression ≥ 80 dB
Repeat accuracy see Table 6-22:.
Temperature coefficient T
K
≤ 300 ppm/°C from end value
Cycle time Voltage measurement: 70 ms/channel
Temperature measurement: 130 ms/channel
Table 6-21:
Basic errors
Thermo couple Temperature range/°C Basic error at 23 °C/% of posi-
tive end value
Type K -200 … 1370
±
0,2
Type J -210 … 1200 ±
0,2
Type B 500 … 1820
±
0,2
Type N -150 … 1300 ±
0,2
Type E -180 … 1000
±
0,2
Type R 0 … 1760 ±
0,2
Type S 0 … 1540
±
0,2
Type T -200 … 0
0 … 400
±
0,6
±
0,2
Voltage measurement all measurement ranges ±
0,2
Table 6-22:
Repeat accuracies
Thermo couple Repeat accuracy/%
of positive end value
Error due to cold junction com-
pensation/% of positive end
value
Type K 0.05 ± 0,15
Type J 0.05 ± 0,17
Type B 0.05 ± 0,11
Type N 0.05 ± 0,16
Type E 0.05 ± 0,20
Type R 0.05 ± 0,12
Type S 0.05 ± 0,13
Type T 0.1
0.075
–
0
Voltage measurement 0.05 –
NOTE
Wider deviations of the cold junction compensation are to be expected for lower tempera-
tures.
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