Product data

DeltaV Product Data Sheet
October 2014 – Page 18 S-Series Electronic Marshalling
Thermocouple/mV Input CHARM
Specifications for Thermocouple/mV Input CHARM
Sensor types
• Thermocouple
• mV
B, E, J, K, N, R, S, T, uncharacterized
Low level voltage source (±20 mV, ±50 mV, and ±100 mV)
Full Scale signal range See Table next page
Accuracy See Table next page
Repeatability 0.05% of span
Resolution 24 Bit A/D converter / Depends upon the sensor type
Calibration None required
Cold junction compensation(CJC)
Accuracy
Range
± 1.0º C
-40 to 85º C
DC/50/60 Hz Common mode
rejection
90dB
Isolation Each sensor galvanically isolated and factory tested to 1000
VDC
Open sensor detection Yes
CHARM power req. 22 mA max @ 24 VDC
CHARM Heat Dissipation 0.30 W