Honeywell UV detector minipeeper C7035A1064/U

The Honeywell UV detector minipeeper C7035A1064/U is an industrial flame sensor designed to detect ultraviolet radiation emitted by flames in burners running on gas, oil, or combined fuels. It is used in flame monitoring systems and is compatible with Honeywell amplifiers R7249A, R7290A, R7749B, R7849A, and R7849B. The detector features a 1/2-14 NPSM connection thread and is available with wire lengths of 6 ft [1.83 m] or 12 ft [3.66 m]. The UV reading tube is replaceable on-site. This model has an article number of 534.211.034.

Parts of this type are selected by ensuring compatibility with the amplifier model and checking the connection thread size, which must match the mounting. The detector is installed with a built-in cuff having an internal thread of 1-11-1/2 NPSM for a one-inch inspection tube. The wire length must be sufficient for the installation distance. The detector must be positioned with direct line of sight to the flame, away from other UV sources, and within allowable temperature and pressure limits.

When items of this kind fail, the flame monitoring system may fail to detect the flame, causing the burner to shut down or fail to start. Common issues include a faulty UV tube, which can be replaced, or damage to the wires or housing. Check for proper electrical connections and ensure the detector is not exposed to excessive heat or pressure beyond its rated limits.