Description
The Honeywell 05704-A-0144 is an advanced, high-density four-channel control card engineered specifically for Honeywell Analytics System 57 (System 5704) gas and fire detection architectures. Designed to process signals from up to four catalytic combustible gas sensors simultaneously, it provides precise signal conditioning, multi-level alarm management, and a high-packing-density solution within a compact 3U card form factor. Below is the technical datasheet outlining ten core parameter specifications for this unit:
| Parameter | Specification Details |
| Manufacturer | Honeywell Analytics / Zellweger Analytics |
| Model Designation | 05704-A-0144 |
| Product Type | Four-Channel Control Card (Catalytic Input) |
| System Compatibility | Honeywell System 57 / System 5704 Architecture |
| Operating Voltage | 18 VDC to 32 VDC supply range |
| Power Consumption | 8.5 W typical (12.8 W maximum at 200 mA sensor current) |
| Sensor Drive Method | Constant current (90 mA to 315 mA electronic adjustment) |
| Display Features | Backlit LCD, bar graph, peak reading, and digital alphanumeric readout |
| Item Weight | Approximately 165 grams (0.165 kg) |
| Operating Temperature | -5°C to +55°C |
📖 Product Usage Instructions
- 🛠️ Power Isolation: Always ensure that system sub-rack power supplies are completely turned off and isolated before inserting, removing, or servicing the four-channel control card to protect internal electronics.
- 🔌 Secure Insertion: Align the 3U printed circuit board card carefully within the designated System 57 rack slots, applying steady pressure to engage backplane connectors securely.
- 🔧 Bridge Current Configuration: Program and verify that the constant current sensor drive settings match the precise operating specifications (90 mA to 315 mA) of your connected catalytic gas detectors prior to startup.
- 🧪 Functional & Loop Testing: Perform comprehensive calibration, zero/span adjustment, and alarm verification via the front-panel interface or engineering software to ensure accurate gas detection response.
❓ Frequently Asked Questions (Q&A)
- Q: What is the primary function of the 05704-A-0144 control card?
A: It serves as a high-density control card designed to monitor and process signals from up to four separate catalytic gas detectors simultaneously within a single rack slot.
- Q: How are the channel inputs configured and displayed?
A: It features individual status LEDs and supports multiple display modes, including automatic sequencing, highest reading, combination view, or manual channel selection on its backlit display.
- Q: What safety protections are built into the sensor drive circuit?
A: The constant current drive is fully protected against short circuits and open circuits, with automatic detection for single-bead failures or line faults.
🔍 Recommended Alternative Models & Series
To support your industrial gas and fire detection system maintenance, spare parts management, and system expansions, here are ten alternative modules and series from Honeywell Analytics:
- Honeywell 05704-A-0145 Four Channel Control Card (4-20mA Input version)
- Honeywell 05701-A-0302 Single Channel Control Card (Catalytic)
- Honeywell 05701-A-0301 Single Channel Control Card (4-20mA version)
- Honeywell 05704-A-0123 Hex Relay Interface Card
- Honeywell 05704-A-0133 Fire Relay Interface Assembly
- Honeywell 05704-A-0146 5704F Fire Card
- Honeywell 05701-A-0284 Catalytic Sensor Drive Module
- Honeywell Searchpoint Optima Plus Point Infrared Gas Detector
- Honeywell Sensepoint XCD Gas Monitor
- Honeywell Safety Manager Safety Processor Modules


