492.48 EURexcl. VAT · import VAT and duties on delivery
Key specifications
| Detection principle | UV sensor |
|---|---|
| Connection thread | 1/2-14 NPSM |
| Detection principle | ultraviolet radiation |
| Wire length options | 6 ft [1.83 m] |
| Flame detection | end of flame |
| Housing standard | NEMA type 4 and 4X |
| UV reading tube installation | replaced in the field |
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Description
The Honeywell C7035A1023/U is an industrial flame sensor that detects the presence of ultraviolet radiation emitted by a flame. It is used with Honeywell flame monitoring systems for gas, oil, and combined burners. The sensor features a UV detection tube, a 1/2-14 NPSM connection thread, and a 6 ft [1.83 m] wire length. Its housing meets NEMA type 4 and 4X standards, and the UV reading tube is replaceable in the field. Compatible with R7249A, R7290A, R7749B, and R7849A amplifiers.
Further details
| Certification | UL MP268, CSA LR 95329-1, FM, Industrial Risk Insurers |
|---|---|
| Installation requirements | detector must be in direct line of sight of flame and not exposed to other UV radiation |
| Parallel connection note | two flame detectors can be connected in parallel in cases where flame reading is difficult |
Choosing and fitting
When selecting a replacement flame sensor of this type, ensure the detector type (UV sensor) and detection principle (ultraviolet radiation) match the burner control system. The connection thread (e.g., 1/2-14 NPSM) must fit the mounting, and the wire length must be sufficient for the installation. Verify the housing standard (e.g., NEMA type 4/4X) meets environmental requirements. The UV reading tube should be compatible with the amplifier model.
Signs of failure
Typical failures include a faulty UV tube, which may cause the burner to shut down or fail to ignite. Symptoms include intermittent flame detection or a false flame signal. Check the UV tube for damage or contamination, and verify the sensor's line of sight to the flame is unobstructed.
All specifications
| Detection principle | UV sensor |
|---|---|
| Connection thread | 1/2-14 NPSM |
| Detection principle | ultraviolet radiation |
| Wire length options | 6 ft [1.83 m] |
| Flame detection | end of flame |
| Housing standard | NEMA type 4 and 4X |
| UV reading tube installation | replaced in the field |
Part numbers
| SKU | C7035A1023/U |
|---|---|
| Additional article | 534.211.043 |
| Type designation | R7249A |
| Type designation | R7290A |
| Type designation | R7749B |
| Type designation | R7849A |
| Type designation | 129808 |
| Type designation | C7035A1064 |
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