05701-A-0302 | Honeywell 5701 Single Channel Control Card

Product Overview

The Honeywell 05701-A-0302 is a Single Channel Control Card designed specifically for catalytic gas sensors within the Honeywell Zellweger Analytics System 57. It monitors combustible gas concentrations, providing clear and accurate readings with integrated sensor performance checks.

Key Specifications

• Model Number: 05701-A-0302
• Series: Honeywell System 57
• Product Type: Single Channel Control Card — Catalytic
• Operating Voltage: 18V to 32V DC
• Power Consumption: 3.75W (typical, including catalytic sensor)
• Electronic Drift: Less than ±2% over 6 months
• Display: Multi-function display system
  • Analogue: 25-segment for gas concentration
  • Digital: Four-character numerical readout
  • Message: Four-character for system messages
  • Icon Section: Power and card selection indicators
• LED Indicators: A1, A2, A3 gas alarms; Fault and Inhibit
• Push-Buttons: Alarm reset, Card selection
• Dimensions: 170 mm × 25 mm × 112 mm (L × W × H)
• Weight: 0.165 kg

Core Features

• Self-contained single-channel catalytic gas detection processing
• 25-segment analog display plus 4-character digital readout
• Alarm setting resolution in 1% FSD steps
• Remote inhibit and alarm reset capability
• Self-validation of circuit components, software, and catalytic sensor condition
• Compatible with 05701-A-0284 Catalytic Sensor Drive Module

Applications

• Combustible gas detection (methane, propane, butane, etc.)
• LEL (Lower Explosive Limit) monitoring
• Refinery and petrochemical safety systems
• Offshore platform gas detection
• Wastewater treatment plant safety

FAQ

Q: What sensor drive module is required for the 05701-A-0302?
A: Use the 05701-A-0284 Catalytic Sensor Drive Module, which is factory-fitted and plugs directly onto the control card.

Q: What is the difference between 05701-A-0301 and 05701-A-0302?
A: The 05701-A-0301 is for 4-20 mA input sensors, while the 05701-A-0302 is specifically for catalytic (pellistor) type sensors.

Installation Guide

1. Install the 05701-A-0284 Catalytic Sensor Drive Module onto the control card.
2. Insert the assembled card into the System 57 sub-rack slot.
3. Connect the catalytic sensor to the sensor drive module terminals.
4. Configure alarm setpoints using the engineering card interface.
5. Perform zero and span calibration with certified calibration gas.
6. Verify sensor response and alarm functionality before commissioning.

Selection Tips

• Use 05701-A-0302 for catalytic (pellistor) combustible gas sensors.
• For 4-20 mA toxic gas sensors, use 05701-A-0301 instead.
• Consider the 05701-A-0285 Analogue Output Module for DCS integration.
• Ensure catalytic sensor compatibility with target gas type and measuring range.