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  • DeltaV™ DI 24 V DC Low-Side Sense (dry contact) CHARM
DeltaV-P-SE4301T02

DeltaV™ DI 24 V DC Low-Side Sense (dry contact) CHARM

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Product Description

A digital input Characterization Module (CHARM) for 24 V DC Dry Contacts.

Specifications

Sensor Types
24 V DC 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 kΩ
Wetting Voltage
22.5 Volts (±5%), current limited to 12.5 mA nominal
Field Circuit Protection
12.5 mA Current Limiting Circuit, Field wiring disconnect
CHARM Power Req.
22 mA max @ 24 V DC
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
Discrete Input - Dry contact or discrete state sensor changing <2 Hz, Pulse Count - Pulse train 0.1 Hz to 10 KHz, 50 µsec min pulse width

Documents & Drawings

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