Product data

DeltaV Product Data Sheet
October 2014 – Page 20 S-Series Electronic Marshalling
Analog Input 0-10 VDC Isolated CHARM
Specifications for AI 0-10 VDC Isolated CHARM
Sensor types Voltage device
Full Scale signal range See Table below
Accuracy See Table below
Input Impedance 10 MΩ
Repeatability 0.05% of span
Resolution 24 bit A/D converter / Refer to the following table
Calibration None required
Common mode rejection 90dB at 50/60 Hz
Isolation Input channel galvanically isolated and factory tested to
1000 VDC
CHARM power req. 22 mA max @ 24 VDC
CHARM Heat Dissipation 0.40 W
Simplified Circuit and Connection Diagram for Isolated Voltage CHARM
Note: Installing a 250 Ω range resistor across terminals 3 and 4 converts a 4-20 mA field signal to 1-5V input signal
Isolated Input Voltage Sensor Type Specifications
Sensor Type Sensor Range 25° Reference
Accuracy
1
Temperature
Drift
Nominal
Resolution
0 to 5 V 0 to 5 V ±0.005 V ±0.0005 V/°C 0.00008 V
0 to 10 V 0 to 10 V ±0.010 V ±0.001 V/°C 0.00015 V
1 to 5 V 1 to 5 V ±0.005 V ±0.0005 V/°C 0.00006 V
1 V -1 to +1 V ±0.0025 V ±0.0002 V/°C 0.00003 V
5 V -5 to +5 V ±0.005 V ±0.0005 V/°C 0.00015 V
10 V -10 to +10 V ±0.010 V ±0.001 V/°C 0.00030 V