Honeywell C7076A1007

1. Product Overview

Honeywell C7076A1007 is an ultraviolet (UV) flame detector specifically designed for industrial combustion systems. It features adjustable sensitivity, a wide temperature/voltage operating range, and a self-check function. The detector can reliably capture UV radiation from flames of natural gas, oil, pulverized coal, etc., enabling safe flame monitoring.

2. Key Technical Specifications

Parameter	Specification
Model	C7076A1007 / C7076A1007‑U
Electrical Connection	Terminal Block
Mounting Method	1-inch NPT Flange
Protection Class	NEMA 4 (Dust and Water Resistant)
Ambient Temperature Range	-40 °F ~ +160 °F (-40 °C ~ +71 °C)
Rated Voltage	120 VAC (100 VAC/220-240 VAC Optional)
Frequency	50 Hz / 60 Hz (Depending on Model)
Sensitivity Setting	Two Adjustable Levels, Single-level Dynamic Range 400:1
Output Signal	High Level (Suitable for Long-distance Transmission)
Operating Temperature	-40 °C ~ +71 °C
Power Supply Voltage	120 VAC (or Corresponding Voltage Model)

3. Product Features

• Adjustable Sensitivity: Two adjustable levels to meet the sensitivity requirements of different burners.
• Wide Temperature/Voltage Adaptability: Maintains stable performance even in extreme environments.
• Self-check Function: Built-in UV amplifier (R7886) enables closed-loop self-check to ensure the integrity of the detector and amplifier.
• Long-distance Output: High-level output requires no special wiring, making it suitable for on-site long-distance monitoring.
• Solid-state Circuitry: No mechanical wear, ensuring long service life and high reliability.
• NEMA 4 Protection Class: Dust and water resistant, applicable to harsh industrial sites.

4. Structure and Composition

• Housing: Metal frame with a 1-inch NPT interface.
• UV Detection Unit: Solid-state UV sensor responsible for capturing UV radiation from flames.
• Amplifier Module: R7886 dynamic self-check UV amplifier, forming a closed-loop self-check circuit.
• Electrical Terminal Block: Terminal block wiring for quick on-site wiring.
• Output Signal Interface: High-level output terminal supporting long-distance transmission.
• Adjustment Screw: Mechanical adjustment device for sensitivity adjustment.

5. Typical Application Fields

• Industrial combustion systems (boilers, furnaces, heat treatment equipment)
• Flame monitoring in natural gas/oil refining processes
• On-site safety protection for pulverized coal combustion and metal smelting
• Flame detection in combined heat and power (CHP) and waste gas treatment systems
• Flame safety interlock in petrochemical and chemical production lines

6. Installation Key Points

1. Installation Location: Choose a position with an unobstructed line of sight, close to the combustion area, and easy for maintenance.
2. Interface Connection: Use a 1-inch NPT flange to correctly connect with pipelines and power supply terminal blocks.
3. Protection Measures: Ensure the housing is intact to prevent dust and moisture from entering.
4. Power Supply Check: Confirm that the power supply voltage matches the model to avoid overvoltage or undervoltage.
5. Commissioning: After the first power-on, perform sensitivity adjustment and self-check function verification.

7. Maintenance

• Regular Cleaning: Keep the detection window free of dust and oil stains to prevent signal attenuation.
• Self-check Inspection: Use the built-in self-check function to regularly confirm that the amplifier and detector work normally.
• Electrical Inspection: Check that terminal connections are tight, without looseness or corrosion.
• Calibration: If necessary, re-adjust the sensitivity according to on-site flame characteristics.
• Replacement Cycle: Depending on the operating environment, it is recommended to replace the detection unit every 3-5 years to ensure no sensitivity degradation.

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