Description
The Honeywell 05701-A-0301 is a high-performance Single-Channel Control Card designed for use within the Honeywell Searchline 57 series gas detection systems. It serves as the primary processing interface for a single gas detector, providing real-time monitoring and alarm logic.
Product Parameters (Datasheet)
- Model Number: 05701-A-0301
- Series: Searchline 57 (Standard 1-Channel)
- Input Signal: 4-20 mA (Sourcing or Sinking)
- Output Relays: Three integrated alarm relays (A1, A2, A3) and one fault relay
- Relay Rating: 5A at 250V AC / 32V DC (Non-inductive)
- Display: 4-character high-visibility LED display for gas concentration
- Power Consumption: Typically < 3.5 W
- Operating Voltage: 18V to 32V DC
- Mounting: Standard System 57 rack (requires 1 slot)
- Calibration: Non-intrusive one-man calibration via front panel
HONEYWELL 05701-A-0301
HONEYWELL 05701-A-0301
HONEYWELL 05701-A-0301
Country of Origin
This control module is engineered and manufactured by Honeywell Analytics in the United Kingdom, specifically for industrial safety and life-critical gas monitoring.
Application Fields
The 05701-A-0301 is a fundamental safety component in:
- Oil & Gas Refineries: Monitoring for combustible or toxic gas leaks near storage tanks.
- Chemical Processing: Interfacing with sensors to detect hazardous chemical releases.
- Offshore Platforms: Managing fire and gas safety logic in harsh marine environments.
- Manufacturing Plants: Coordinating emergency shutdowns based on atmospheric gas levels.
- Waste Water Treatment: Detecting H2S and methane levels in confined spaces.
Product Usage Instructions
- Installation: Insert the card into a vacant slot in the System 57 rack. Ensure the card is fully seated in the backplane connector and the thumb screws are hand-tightened.
- Wiring: Connect the 4-20 mA transmitter signal to the corresponding terminals on the rear of the rack. Verify the power supply is within the 18V-32V DC range.
- Configuration: Use the front-panel pushbuttons to set the gas type, range (e.g., 0-100% LEL), and alarm thresholds for the A1, A2, and A3 relays.
- Calibration: Perform a zero and span calibration using the menu-driven display. The card will automatically inhibit the alarm relays during this process to prevent false trips.
- Monitoring: The LED display will provide real-time concentration data. A flashing “F” or numeric code indicates a fault condition that requires attention.
Product Technical Description
Technically, the 05701-A-0301 is a microprocessor-based signal conditioner. It receives a standardized 4-20 mA signal from a field detector, linearizes the data, and compares it against user-defined safety limits. The “0301” variant is optimized for reliability, featuring a high-contrast display and robust relay contacts. It includes built-in diagnostics that monitor the integrity of the field sensor wiring, automatically triggering the fault relay if a cable break or short circuit is detected, ensuring the system fails to a safe state.
Q&A (Common Questions)
Q: Can I use this card to monitor two different gas detectors? A: No, the 05701-A-0301 is a single-channel card. For multiple sensors, you must use one card per detector or upgrade to a multi-channel interface.
Q: What does the “Inhibit” mode do? A: When active, the “Inhibit” mode prevents the alarm relays from firing during maintenance or calibration, allowing you to test the sensor without triggering a site-wide shutdown.
Q: Is this card compatible with infrared gas detectors? A: Yes, it is compatible with any 3-wire 4-20 mA transmitter, including catalytic bead, electrochemical, and infrared sensors.
Q: Why is the display showing a “BE” or “FLT” code? A: These are fault codes. “FLT” typically indicates a loss of signal from the sensor, while other codes may point to internal hardware errors or a failed relay check.
Similar Model Recommendations
- Honeywell 05701-A-0302 (Multi-channel variant)
- Honeywell 05704-A-0121 (4-Channel control card)
- Honeywell 05701-A-0321 (Enhanced relay variant)
- Honeywell Searchline Excel (Compatible infrared transmitter)
- Honeywell Sensepoint XCD (Compatible universal transmitter)
For technical support or procurement regarding the Honeywell 05701-A-0301, please contact our gas detection specialists today.
