Description
The Honeywell 05701-A-0302 is an advanced single-channel control card designed specifically for catalytic gas sensors within the Zellweger Analytics System 57 series. Engineered for industrial safety applications, it provides precise signal processing, multi-level alarm handling, and clear status visualization for monitoring combustible gases in hazardous environments. Here are ten core parameter specifications for this unit:
- 🏭 Manufacturer: Honeywell Analytics / Zellweger Analytics
- 🏷️ Product Type: Single Channel Control Card (Catalytic)
- 📌 Model Designation: 05701-A-0302
- ⚡ Operating Voltage: 18V to 32V DC supply range
- 🔌 Power Consumption: Approximately 3.75W (including catalytic sensor drive)
- ⚖️ Item Weight: Approximately 165 grams (0.165 kg)
- 📐 Physical Dimensions: 17 cm x 2.5 cm x 11.2 cm (3U card-type form factor)
- 🌍 Country of Origin: United Kingdom / Global Manufacturing Facility
- 📊 Display Features: 25-segment analog bar graph, 4-character digital display, and message/icon indicators
- ⚓ Core Application: Combustible gas detection, safety monitoring, and alarm management in industrial plants
📖 Product Usage Instructions
- 🛠️ Power Isolation: Always ensure that system rack power supplies are completely turned off and isolated before inserting or removing the control card to protect internal circuitry.
- 🔌 Secure Mounting: Align the 3U printed circuit board card carefully within the designated System 57 rack slot, applying steady pressure to engage backplane connectors securely.
- 🔧 Bridge Current Configuration: Verify that the built-in sensor drive module solder links match the precise bridge current requirements of your catalytic gas sensor before system startup.
- 🧪 Functional Testing: Perform a comprehensive system calibration and alarm loop check via the engineering interface to verify accurate gas concentration response and relay triggering.
❓ Frequently Asked Questions (Q&A)
- Q: What is the primary function of the 05701-A-0302 control card?
A: It serves as a dedicated single-channel controller designed to process signals from catalytic gas detectors, providing local display and multi-level alarm outputs.
- Q: Can this card be replaced independently without disrupting other channels?
A: Yes, the System 57 architecture allows individual control cards to be extracted or replaced without affecting the wiring or operation of adjacent channels.
- Q: What do the front panel LED indicators signify?
A: They provide immediate visual status for A1, A2, and A3 gas alarm thresholds, system faults, and card inhibition states.
🔍 Recommended Alternative Models & Series
To support your industrial gas detection infrastructure, maintenance, and spare parts management, here are ten alternative modules and series from Honeywell Analytics:
- Honeywell 05701-A-0301 Single Channel Control Card (4-20mA version)
- Honeywell 05701-A-0351 Control Card (System 5701)
- Honeywell 05701-A-0284 Catalytic Sensor Drive Module
- Honeywell 05701-A-0283 4-20mA Sensor Drive Module
- Honeywell 05701-A-0285 Analogue Output Module
- Honeywell 05701-A-0326 Field Interface Card
- Honeywell 05701-A-0327 Double SPCO Relay Card
- Honeywell 05701-A-0330 High Integrity Relay Card
- Honeywell Searchpoint Optima Plus Point Infrared Gas Detector
- Honeywell Sensepoint XCD Gas Monitor




