Honeywell 05701-A301

Product Name: Single Channel Gas Detection Control Card (System 57 Series)

Product Introduction: The Honeywell 05701-A301 (full part number 05701-A-0301) is a single-channel control module for the Honeywell System 57 gas detection and safety monitoring platform. It processes 4–20 mA analog signals from connected gas sensors, provides real-time concentration display, alarm threshold comparison, and system-level communication functions.

Category:
Description
Technical Specifications:
  • Input Signal: 4–20 mA standard industrial analog loop
  • Power Supply: 10–30 VDC wide-range industrial voltage
  • Operating Temperature: -20°C to +70°C
  • Display: Front-panel gas concentration readout with LED alarm indicators
  • Interface: System 57 backplane bus communication
  • Certifications: CE, UL safety compliance

    Functional Features:

  • Microprocessor-controlled signal processing with field-configurable alarm setpoints
  • Integrated alarm reset and channel selection pushbutton interface
  • EEPROM-stored configuration for persistent setup retention
  • Compatible with 05701-A-0283 Sensor Drive Module for complete end-to-end channel implementation
  • Optional plug-in analog output module for remote signal retransmission

    Application Scenarios:

  • Industrial fixed gas detection and fire safety systems
  • Petrochemical refineries and chemical processing facilities
  • Power generation plants and onshore oil & gas production sites
  • Manufacturing facilities with combustible or toxic gas exposure risks

    Structural Features:

  • Compact plug-in card form factor for System 57 rack mounting
  • Front-panel LED indicators for alarm status and channel health
  • Modular internal interface for sensor drive and output expansion modules

    Working Principle: The card receives conditioned 4–20 mA signals from the paired sensor drive module, converts the analog input to digital values, calculates gas concentration via calibrated scaling, compares readings against user-configured high and low alarm thresholds, activates corresponding alarm outputs, and communicates channel status to the system controller via the rack backplane.

    Installation Requirements:

  • Install into an available card slot in a System 57 controller rack
  • Verify full seating of the backplane connector before securing
  • Mate with a compatible 05701-A-0283 Sensor Drive Module for full channel operation
  • Terminate field wiring per the official wiring diagram and polarity specifications

    Operation Notes:

  • Verify sensor type and output range match card configuration before commissioning.
  • Calibrate alarm setpoints in accordance with site safety regulations and gas hazard classification.
  • Disconnect system power before performing card installation or removal.
  • Conduct periodic functional tests to verify alarm response and output accuracy.
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