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    Discontinued / Obsolete by OEM
    Apter Power provides original Honeywell 05701-A-0302 control cards to ensure continued reliability and precise flammable gas detection across legacy System 57 safety architectures.

05701-A-0302

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The Honeywell 05701-A-0302 Single Channel Control Card is a microprocessor-controlled component designed for the 5701 Control System.
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Technical specifications for 05701-A-0302

  • Manufacturer:
    Honeywell
  • Part Number:
    05701-A-0302
  • Product Family:
    Honeywell 5701 Control System
  • Product Type:
    Single Channel Control Card
  • Stock:
    3
  • Power Input:
    18V to 32V DC; 3.75W typical
  • Display & Indicators:
    LCD (4-part), 25-segment bargraph, and 5 LEDs (A1, A2, A3, Fault, Inhibit)
  • Alarm Resolution:
    1% of full-scale deflection (fsd)
  • Catalytic Drive:
    Constant current (70mA to 283mA)
  • Compliance:
    EMC compliant (EN50270)
  • Weight:
    0.165 kg
  • Estimated shipping dimensions:
    17 cm × 2.5 cm × 11.2 cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Applications Temperature & Humidity Range Installation & Integration

Features:

  • Dedicated Control and Monitoring for a Single Catalytic Gas Detector Loop
  • Integrates Local Visual Display with Comprehensive Alarm Indication Capabilities
  • Works Seamlessly with the 5701 Control System Rack and Optional Engineering Card
The HONEYWELL 05701-A-0302 Single Channel Control Card operates as the catalytic gas monitoring unit within a 5701 Control System, providing reliable control, display, and alarm functions for a connected catalytic gas detector. It continuously processes incoming signals from its dedicated plug-in catalytic sensor drive module and displays the gas level on its front-panel liquid crystal display (LCD) to support local operational visibility. Comprehensive hazard supervision is standard with the HONEYWELL 05701-A-0302; however, adding an optional plug-in Analogue Output Module will allow seamless transmission of channel readings to remote monitoring or supervisory systems.

The HONEYWELL 05701-A-0302 provides essential single-loop protection functions for gas detection, and is a critical component of the monitoring path, directly affecting the proper, normal safety operation of the overall system. One control card is required per gas detection loop depending on the total number of channels needed. The HONEYWELL 05701-A-0302 consists of a single channel control card fitted with its respective plug-in catalytic sensor drive module and installs into the dedicated control slots of the 5701 system rack.

For advanced alarm processing and system notification, the 5701 Control System relies on the capabilities built into the HONEYWELL 05701-A-0302. In addition to local visual display, the control card continuously performs real-time limit checking and automated self-diagnostics. The HONEYWELL 05701-A-0302 compares incoming sensor signal levels against pre-defined alarm thresholds. If the system detects that gas levels exceed set limits, it will automatically raise alarms by lighting front-panel LEDs, operating optional connected relays, and sharing alarm status information with other cards in the rack. Furthermore, it constantly executes self-validation to verify circuit components, software execution, and connected sensor condition.

The 05701-A-0302 HONEYWELL  Single Channel Control Card may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
HONEYWELL 05701-A-0302 Single Channel Control Card Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
HONEYWELL 05701-A-0302 Single Channel Control Card Specs

General

  • Manufacturer HONEYWELL
  • Model 05701-A-0302
  • Condition New Original ready stock
  • Product Family 05701-A-0301,05701-A-0361
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Combustible Gas Monitoring: Processes safety-critical loops to continuously monitor Lower Explosive Limits (LEL) of hazardous gases.
  • Central Safety Infrastructure: Deployed within central monitoring panels alongside Distributed Control Systems (DCS) and Programmable Logic Controllers (PLC).
  • Target Industrial Sectors:1.Petrochemical, oil refining, and gas extraction facilities.2.Chemical manufacturing and heavy industrial processing plants.3.Power generation plants and major industrial automation complexes.
  • Standard Industrial Enclosures: -5°C to +55°C.
  • ATEX-Certified Enclosures: 0°C to +55°C.
  • Note: Storage thresholds can safely span from -40°C to +70°C.
  • Relative Humidity Range:0% to 90% RH, strictly non-condensing.
  • Modular Rack Architecture: Designed as a space-saving 3U card standard.A standard 19-inch sub-rack houses up to 16 channels, while a half-rack supports up to 8 channels.
  • Backplane Separation:The 05701-A-0302 Control Card plugs into the front of the rack.The matching Interface/Relay Card or Field Interface Card attaches directly to the rear of the rack to receive field wiring.
  • Field Terminations: Wire connections accept single-strand or multi-strand field loop cabling up to 2.5 mm² (14 AWG).
  • System Programming & Logic: Communicates with an Engineering Card in the same rack to configure parameter profiles. Supports specialized alarm setups including Master, Zoned, and Voted configurations.
Description
The Honeywell 05701-A-0302 single-channel catalytic gas control card is a dedicated control, display, and alarm module designed specifically for the Honeywell 5701 control system. Featuring a built-in plug-in catalytic sensor driver module and flexible software configuration stored in EEPROM, the Honeywell 05701-A-0302 efficiently processes input catalytic sensor signals, displays gas readings in real-time on its front panel LCD screen, and continuously compares signal levels with predefined alarm thresholds to ensure immediate local and system-wide warnings.

In terms of application fields, the HONEYWELL 05701-A-0302 Single Channel Control Card is ideal for industrial plants, oil and gas facilities, chemical processing sites, and manufacturing plants requiring reliable, dedicated catalytic gas detection loops. The HONEYWELL 05701-A-0302 executes essential safety control functions by illuminating front-panel alarm LEDs, operating optional connected relays, and broadcasting real-time alarm status data to adjacent cards across the system rack. To safeguard operational reliability, the HONEYWELL 05701-A-0302 features continuous self-validation that automatically checks its internal circuit components, software execution, and connected sensor conditions to prevent undetected hardware or sensing failures.

Regarding installation and system integration, the HONEYWELL 05701-A-0302 Single Channel Control Card installs directly into standard Honeywell 5701 rack enclosures alongside its dedicated plug-in catalytic sensor drive module. The front panel of the HONEYWELL 05701-A-0302 features a user-friendly push-button that enables operators to reset active alarms and select the card for setup or diagnostic interaction with a central Engineering Card. Furthermore, the integration capabilities of the HONEYWELL 05701-A-0302 can be enhanced by fitting an optional plug-in Analogue Output Module directly onto the card, providing a remote output of channel gas readings to higher-level telemetry or supervisory systems.
Alternative Names
05701 A 0302 05701A0302 0570I-A-0302 O57O1-A-O3O2 05701-A-0301 05701-A-0284
Technical notes
The Honeywell 05701-A-0302 catalytic single channel control card consists of a base control card pre-fitted with a catalytic sensor drive module. It provides full control, display, and alarm facilities for a single connected gas detector loop.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What problems does the Honeywell 05701-A-0302 solve?
The Honeywell 05701-A-0302 helps detect combustible gas hazards before they become critical. It continuously monitors gas sensor signals, compares readings with preset alarm limits, and provides immediate notification when dangerous gas concentrations are detected, helping reduce safety risks and operational downtime.
Which gas detectors are compatible with the Honeywell 05701-A-0302?
The Honeywell 05701-A-0302 is designed to interface directly with catalytic combustible gas detectors. It receives signals from the sensor drive module and accurately processes gas concentration measurements for continuous monitoring.
How does the Honeywell 05701-A-0302 generate alarms?
The Honeywell 05701-A-0302 compares incoming sensor readings with predefined alarm thresholds. When a limit is exceeded, it activates front-panel LED indicators, operates optional alarm relays, and communicates alarm status to other control cards within the 5701 Control System.