492.48 EURexcl. VAT · import VAT and duties on delivery
Key specifications
| Detection principle | UV detector |
|---|---|
| Detection cell contents | UV sensitive |
| Detection principle | ultraviolet radiation |
| Maximum pressure | 5 psi |
| UV reading tube replacement | field replaceable |
| Flame detection | end of flame |
| Maximum pressure | 5 psi (34.5 kPa) |
| Compatible amplifiers | R7249A, R7290A, R7749B, R7849A, B |
702.00EUR
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Description
The Honeywell C7035A1049/U is an industrial UV detector designed to sense ultraviolet radiation emitted by flames in gas, oil, and combined burners. It is compatible with R7249A, R7290A, R7749B, and R7849A/B amplifiers. The detector operates at pressures up to 5 psi (34.5 kPa) and features a field-replaceable UV reading tube. It includes a flange seal with type designation 129808.
Further details
| Certification | Underwriters Laboratories Inc.: MP268; Canadian Standards Association: LR 95329-1; Factory Mutual; Industrial Risk Insurers |
|---|---|
| Electrical connections | two color-coded wires, NEC Class 1, 6 ft [1.83 m] long; 1/2-14 NPSM thread for wire connection |
| Housing type | meets UL for moisture protection and NEMA type 4 and 4X |
| Installation requirements | direct line of sight to flame; exclude other UV sources; install as close as possible |
| Mounting feature | built-in cuff with internal thread for 1-inch inspection tube |
| Parallel connection note | possible when flame reading is difficult |
Choosing and fitting
When selecting a replacement UV detector of this type, ensure compatibility with the existing amplifier model (e.g., R7249A, R7290A, R7749B, R7849A/B). The detector must be installed in direct line of sight of the flame, avoiding exposure to other UV sources like ignition sparks. Mounting typically uses a one-inch inspection tube with a built-in cuff. Verify the maximum allowable pressure of the system does not exceed 5 psi (34.5 kPa).
Signs of failure
Common failure modes for UV detectors include a faulty UV reading tube, which may cause loss of flame signal or intermittent burner shutdowns. Symptoms may include the burner failing to ignite or shutting down unexpectedly during operation. Check the detector's lens for dirt or coating, and test the UV tube with a known good replacement if available.
All specifications
| Detection principle | UV detector |
|---|---|
| Detection cell contents | UV sensitive |
| Detection principle | ultraviolet radiation |
| Maximum pressure | 5 psi |
| UV reading tube replacement | field replaceable |
| Flame detection | end of flame |
| Maximum pressure | 5 psi (34.5 kPa) |
| Compatible amplifiers | R7249A, R7290A, R7749B, R7849A, B |
Part numbers
| SKU | C7035A1049/U |
|---|---|
| Additional article | 534.211.030 |
| OEM equivalent | R7249A |
| OEM equivalent | R7290A |
| OEM equivalent | R7749B |
| OEM equivalent | R7849A |
| Type designation | 129808 |
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