05701-A-0302 Honeywell Sieger System 57 Single Channel Catalytic Gas Control Card

05701-A-0302 Single Channel Control Card Catalytic

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General Information

Model number	05701-A-0302
Country of origin	USA
Condition	Brand New
Dimension	2.5x17x12.8cm
Weight	0.2kg
Lead time Warranty	in stock
MOQ	1 pcs

Feature & Value-Driven

The 05701-A-0302 is a Honeywell Sieger System 57 microprocessor-based single-channel control card featuring catalytic bridge connectivity. Fully compatible with standard System 57 3U sub-racks, this unit works seamlessly with catalytic bead gas detectors to deliver precise sensor drive control, independent local %LEL readings, and stable combustible gas monitoring across high-integrity industrial safety networks.

Specific Application

Combustible Gas Detection Monitoring: Continuous tracking of explosive and flammable gases (%LEL) in hazardous plant environments using industrial catalytic bead sensors.
High-Density Control Racks: Providing localized channel status and visual bar-graph gas level readouts on standard 19-inch sub-rack or cabinet configurations.
Automated Safety Shutdown Loops: Operating dedicated alarm relays (A1, A2, A3) through connected interface cards to initiate emergency ventilation or isolation valves when combustible limits are reached.

Ordering Information

Part Number	Description	Component Type
05701-A-0302	Single Channel Control Card Catalytic (Includes pre-fitted Catalytic Sensor Drive Module)	Core Control Component
05701-A-0284	Sensor Drive Module Catalytic	Factory-Fitted Spare/Module
05701-A-0285	Analogue Output Module (Optional plugin for isolated 0/4-20mA loop mirroring)	Optional Add-on Module

System Compatibility

· Sub-Racks: Fits directly into the standard 19-inch 3U/6U racks (05701-A-0511, 05701-A-0501) and half-width 19-inch racks (05701-A-0512, 05701-A-0502).

· Core Cards: Operates in conjunction with the System 57 Engineering Card (05701-A-0361) and DC Input Card (05701-A-0325).

· Field Interfaces: Interconnects via the backplane or short cables to Field Interface Cards (05701-A-0326) or standard Relay Cards (05701-A-0327, 05701-A-0328, 05701-A-0329, 05701-A-0330).

· Sensor Inputs: Accepts direct raw catalytic bridge inputs via the factory-fitted Catalytic Sensor Drive Module (05701-A-0284).

Substitute Model & Technical Differences

· Alternative Model: Single Channel Control Card 4 - 20mA (Part Number: 05701-A-0301).

· Key Differences:

o Input Signal: The 05701-A-0302 is engineered for raw Catalytic Bridge inputs, whereas the 05701-A-0301 is dedicated to standard 4-20mA current loop transmitter signals.

o Sensor Drive Module: The 05701-A-0302 comes factory-fitted with the Catalytic Sensor Drive Module (05701-A-0284) to generate specific bead-driving currents, while the 05701-A-0301 utilizes a 4-20mA conditioning Sensor Drive Module (05701-A-0283).

Installation & Troubleshooting FAQ

Q1: How do I select an individual 05701-A-0302 card to adjust or monitor the catalytic bead current?
A: Press the front panel RESET/SELECT push-button on the targeted 05701-A-0302 card. This routes its data across the backplane to the shared Engineering Card, allowing you to use the "BEAD mA" facility to monitor and precisely tune the sensor head current.

Q2: Can I hot-swap a 05701-A-0302 Catalytic Control Card while the rest of the control system is powered on?
A: Yes. The system is designed so that individual Channel Control Cards can be removed or replaced without disrupting the operation, power distribution, or field wiring of adjacent running channels in the sub-rack.

Q3: Why does my 05701-A-0302 card show a "FAULT" indication immediately following a new catalytic sensor installation?
A: Catalytic bead sensors require precise drive settings. The FAULT LED will illuminate if the card detects an open circuit, short circuit, or if the sensor bead bridge line parameters fall outside expected limits. Select the card and check the line integrity and sensor drive voltage using the Engineering Card.

Q4: Can I add a local analog chart recorder output to a channel running the 05701-A-0302 card?
A: Yes. You can plug an optional Analogue Output Module (05701-A-0285) into the J3 and J4 connectors on the 05701-A-0302 board. This provides an isolated 0-20mA or 4-20mA loop that mirrors the live catalytic gas reading.

Q5: How can I change the rising/falling or STEL alarm modes on the 05701-A-0302 card?
A: While basic alarm points can be viewed via the Engineering Card push-buttons, complex software configurations are handled by connecting a PC to the Engineering Card's RS232 port. The dedicated engineering software writes the updated setup parameters directly to the control card's non-volatile EEPROM.

Contact information

Please don’t hesitate to contact us if you have any questions or concerns before or after your purchase. We are committed to your 100% satisfaction.

Sales Manager:Stella

Email:sales6@apterpower.com

Whatsapp:+86 18159889985

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