Honeywell 05704-A-0144 Four-Channel Control Card

Product Description

The Honeywell 05704-A-0144 is a high-performance, four-channel control card designed for the System 57 gas detection architecture. This module serves as the central processing hub for up to four independent gas sensors, providing a robust and scalable solution for industrial safety and environmental monitoring. Engineered to interface with both catalytic bead sensors and standard 4-20mA analog transmitters, it ensures precise detection of combustible gases, toxic gases, or oxygen depletion.

Each channel on the 05704-A-0144 features a clear, backlit display that provides real-time gas concentrations and alarm status at a glance. The card is equipped with programmable relay outputs for automated safety actions and offers highly granular sensor drive adjustments (90 to 315 mA) to optimize the performance of various sensing technologies. With integrated short-circuit and open-circuit protection, this USA-made control card is a mission-critical component for maintaining safety in refineries, chemical plants, and manufacturing facilities.

Technical Specifications

• Manufacturer: Honeywell (Analytics)

• Model Number: 05704-A-0144

• Series: System 57

• Product Type: Four-Channel Control Card

• Input Compatibility: * Catalytic Bead Sensors (Bridge-type)

• 4–20 mA Analog Signals

• Sensor Drive:

• Type: Constant current

• Adjustment Range: 90 to 315 mA (in 1 mA electronic steps)

• Max Drive Voltage: 10V

• Signal Range: 15 mV to 300 mV (Full scale)

• Performance:

• Initial Accuracy: $\pm$1%

• Bridge Balance: Electronic adjustment for bridge balance and signal gain

• Outputs: * Integrated Relay outputs

• Optional Analog output support

• Power Requirements:

• Supply Voltage: 18–32V DC

• Consumption: Typical 8.5 W / Max 12.8 W

• Mechanical & Environmental:

• Mounting: DIN Rail (via System 57 rack/subrack)

• Weight: 141g

• Protection: Short circuit and open circuit field protection

• Control Features: Remote Inhibit and Remote Alarm Set capability

Application Scenarios

The 05704-A-0144 is a staple in multi-point gas monitoring systems:

• Oil & Gas Refineries: Monitoring for combustible gas leaks across four separate locations using a single card slot.

• Chemical Processing: Interfacing 4-20mA toxic gas transmitters with centralized alarm relays.

• Manufacturing Facilities: Managing oxygen levels and flammable gas hazards in confined workspaces.

• Power Plants: Reliable hydrogen monitoring for battery rooms and generator cooling systems.