Honeywell 05704-A-0144 Four Channel Control Card Catalytic Input

Description

The 5704 Four Channel Control Card provides control, display, and alarm facilities for up to four connected gas detectors. The front panel backlit display indicates the gas reading, channel status, and channel number, while LEDs are used for alarms. A push-button is provided for resetting the alarms and selecting the card for use with the Engineering Card. Honeywell 05704-A-0144 is a Four Channel Control Card Catalytic Input.

Functions

• Provides power – Supplies the necessary voltages and currents to drive the connected sensors.

• Signal processing – Processes the incoming sensor signals.

• Display readings – Shows the signal levels one at a time on the front panel liquid crystal display.

• Alarm comparison – Compares each channel signal level with pre-defined alarm limits.

• Alarm activation – Triggers alarms when pre-defined alarm limits are exceeded by lighting up front panel LEDs and operating connected relays.

• Communication – Informs other cards with the alarm status information.

• Self-validation – Checks the operation of its circuit components, software functionality, and the condition of the sensor.