Honeywell 05701-A-0326 Field Interface Module for System 57

Product Overview

The Honeywell 05701-A-0326 serves as the primary signal bridge within the System 57 gas detection architecture. This Field Interface Card receives raw data from remote-mounted gas detectors, amplifies the pulse signals, and transmits clean data to the central controller. We provide this component in 100% Brand New condition to ensure maximum signal integrity and system safety compliance.

Technical Specifications

The 05701-A-0326 utilizes high-grade analog-to-digital processing to maintain linear signal output across long cable distances.

Engineering Advantages

• Precision Signal Amplification: The 05701-A-0326 converts low-level pulses from field sensors into a robust 0-5V DC signal. This active amplification eliminates data loss and ensures the central System 57 controller receives accurate gas concentration levels without interference.

• Optimized Non-Relay Design: By removing unnecessary relay hardware, this card reduces power consumption and heat generation within the control rack. This design suits applications where the central PLC or DCS handles all switching logic, streamlining the local interface.

• Industrial Noise Suppression: The card's circuitry filters out electromagnetic interference (EMI) typical in heavy industrial environments. This ensures that electrical noise from motors or switchgear does not trigger false gas alarms or "fault" status indicators.

• Direct Backplane Integration: The module slides directly into the System 57 rack, utilizing a high-retention connector that withstands constant industrial vibration. This "hot-swap" capable design allows for rapid maintenance without de-energizing the entire safety system.

• Extended Input Voltage Flexibility: Supporting a wide 9-32V DC input range, the card maintains stable operation even during significant battery voltage fluctuations or power supply drops in remote monitoring stations.

FAQs

• Does the 05701-A-0326 support relay-driven local alarms?

  No. This specific model provides signal interfacing and amplification only. If your application requires local relay switching for fans or sirens, you must utilize a System 57 relay output card or a different interface variant.

• Is this card compatible with older System 57 racks?

  Yes. The 05701-A-0326 maintains full backward compatibility with the standard Honeywell System 57 backplane. It serves as a direct functional replacement for older interface cards within this specific series.

• What cable type does Honeywell recommend for connecting field detectors to this card?

  For optimal performance and EMI protection, use high-quality screened (shielded) twisted-pair cabling. Proper grounding of the cable shield at the System 57 rack prevents ground loops and maintains the 0-5V signal accuracy.

• Can this card handle signals from third-party gas sensors?

  The 05701-A-0326 is calibrated specifically for the pulse and signal characteristics of Honeywell field detectors. While some third-party sensors may share similar signal profiles, we recommend using original Honeywell detectors to ensure certified system accuracy.