A LS (Logic Solver), IS (Intrinsically Safe) RTD Characterization Module (CHARM) for a RTD input.
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DeltaV™ LS IS RTD CHARM
DeltaV™ LS IS RTD CHARM
Specs
Sensor Types
RTD input - See full data sheet
Sensor configuration
Two-Wire, three-wire, or four-wire
Full scale signal range
See Full Data Sheet
Accuracy
See Full Data Sheet
Repeatability
0.05% of span
Resolution
24 bit A/D converter / Depends upon the sensor type
Calibration
None required
Sensor Excitation Current
0.5 mA in Two-Wire and four-wire configurations, 0.25 mA in 3-wire
Isolation
Galvanically isolated according to EN 60079-11. Voltage peak value 375V DC.
CHARM Power req.
23 mA max @ 24V DC
CHARM Heat Dissipation
0.60 W
DC/50/60 Hz Common Mode Rejection
90dB typical
Open sensor detection
Yes
Resources
Features
- 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
- Intrinsically Safe (IS) I/O meets Class 1 Division 2 and IEC Zone II environmental conditions when you have to run I/O in hazardous areas
- Intrinsically Safe (IS) I/O meets Class 1 Division 2 and IEC Zone II environmental conditions when you have to run I/O in hazardous areas