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DeltaV™ LS IS DI NAMUR CHARM
PDP_CHARM_LS-DI-NAMUR_angle
A LS (Logic Solver), IS (Intrinsically Safe) Digital Input Characterization Module (CHARM) for NAMUR sensors.
DeltaV™ LS IS DI NAMUR CHARM

Specs

Sensor Types
NAMUR Sensors, Dry Contacts
Detection level for ON
>2.1 mA
Detection Level for Off
<1.2 mA
Channel Impedance
1kOhm ±10%
Wetting Voltage
8V DC ±1V DC
Fault Detection capable
NAMUR Sensors or field resistor pack, Guaranteed short circuit: <100 Ω , Guaranteed good status: 360 Ω to 20 kΩ , Guaranteed open circuit: > 75 kΩ
Isolation
Galvanically isolated according to EN 60079-11. Voltage peak value 375V DC.
CHARM power req.
28 mA max @ 24V DC ±10%
CHARM Heat Dissipation
0.57 W
Configurable channel type
Dry contact or discrete state sensor changing <2 Hz

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