DeltaV™ RTD CHARM

A RTD Characterization Module (CHARM) designed for a RTD input.

DeltaV™ RTD CHARM

Specs

Sensor Types

RTD input - See full data sheet

Sensor configuration

2 wire, 3 wire, or 4 wire

Repeatability

0.05% of span

Resolution

24 bit A/D converter / Depends upon the sensor type

Calibration

None required

Isolation

Each sensor galvanically isolated and factory tested to 1000 V DC

Sensor Excitation Current

0.5 mA in 2-wire and 4 wire configurations, 0.25 mA in 3-wire

DC/50/60 Hz Common Mode Rejection

90dB typical

Open Sensor Detection

Yes

CHARM Power Req.

22 mA max @ 24 V DC

CHARM Heat Dissipation

0.30 W

Full Scale Signal Range

See full data sheet

Accuracy

See full data sheet

Eliminate marshalling and add I/O anywhere in the plant without affecting control room cabinets
No marshalling cabinet or cross-wiring, fewer wires, much less work and fewer contact points for potential failures
No marshalling cabinet or cross-wiring, fewer wires, much less work and fewer contact points for potential failures