Name: DeltaV&#8482; LS DI 24 VDC Low-Side Sense (dry contact) CHARM
Brand: DeltaV

A LS (Logic Solver) Digital Input Characterization Module (CHARM) for 24 VDC Dry Contacts.

DeltaV™ LS DI 24 VDC Low-Side Sense (dry contact) CHARM

Specs

Sensor Types

24 VDC Dry Contacts

Detection Level for On

> 2.25 mA (<5.3 kΩ)

Detection Level for Off

< 1.75 mA (>8.2 kΩ)

Channel Impedance

4.8 KW

Wetting Voltage

22.5Volts (±5%), current limited to 12.5 mA nomina

Field Circuit Protection

12.5 mA Current Limiting Circuit, Field wiring disconnect

CHARM Power Req.

18 mA max @ 24 VDC

CHARM Heat Dissipation

0.33 W

Fault Detection Capable

Guaranteed short circuit: <100 Ω, Guaranteed good status: 400 Ω to 40 kΩ, Guaranteed open circuit: > 75 kΩ

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
No marshalling cabinet or cross-wiring, fewer wires, much less work and fewer contact points for potential failures