Product Overview

The Honeywell 05701-A-0302 is a specialized Single Channel Control Card designed for the System 57 gas detection architecture. While some technical documentation may erroneously cross-reference mechanical bearing data, this component is strictly an electronic processing module used for toxic and flammable gas monitoring within Distributed Control Systems (DCS). The 05701-A-0302 serves as the central intelligence for a single gas sensor input, providing local readout, alarm management, and signal conditioning. It is engineered to interface seamlessly with Honeywell Analytics sensors, converting complex electrochemical or catalytic bead signals into actionable process data for industrial safety networks.

Hardware Specifications and System Attributes

• Model Identification: 05701-A-0302

• Card Function: Single Channel Gas Detection Control

• System Series: Honeywell Analytics System 57

• Input Signal Support: 4-20mA or catalytic bridge inputs

• Display Interface: Integrated 4-character LCD for real-time gas concentration monitoring

• Alarm Outputs: Three levels of alarm relays (A1, A2, A3) plus fault signaling

• Module Weight: 0.18 kg

• Chassis Dimensions: 2.5 x 17 x 13 cm

• Operating Voltage: 24V DC nominal (sourced from the system backplane)

• Status Indicators: Multi-colored LED indicators for Alarm, Fault, and Operational status

• Country of Origin: United States (USA)

• Global Tariff Code: 8537101190

Strategic Industrial Safety Applications

The 05701-A-0302 is a vital safety component in high-risk environments where gas leaks pose an immediate threat to personnel and infrastructure. In Petrochemical Refineries, it is deployed to monitor combustible hydrocarbon levels around storage tanks and processing units. Within Water Treatment Facilities, the module tracks toxic gases such as Chlorine or Sulfur Dioxide, triggering localized ventilation systems and plant-wide alarms if thresholds are breached. It is also extensively used in Industrial Manufacturing and Power Generation plants to provide a decentralized safety layer; because each card operates independently, a failure in one channel does not compromise the monitoring integrity of the remaining gas detection network. Its modular design allows for rapid replacement in System 57 racks, ensuring that safety downtime is kept to an absolute minimum during maintenance cycles.