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Honeywell C7061A UV flame detector
Flame supervision is a core safety interlock on industrial boilers, heating furnaces and burners. Conventional flame rods respond slowly and wear out quickly, whereas an ultraviolet (UV) flame detector senses the UV radiation from a flame within milliseconds and, together with a flame safeguard control, gives fast flame-failure protection.
The Honeywell C7061A series is known as the “Purple Peeper” after its purple cast aluminum housing. The C7061A-1012 is the standard model with dynamic self-check: a built-in oscillating shutter periodically blocks the UV tube, and if the shutter or tube fails, the control detects the fault and triggers a safety shutdown.
C7061A-1012 specifications
| Item | Details |
|---|---|
| Model | C7061A-1012 (discontinued; replacement C7061A1053) |
| Detection | Ultraviolet (UV) flame detection |
| Self-check | Dynamic self-check |
| Amplifier | R7861 Dynamic Self-Check Amplifier |
| Voltage | 120 VAC, 50/60 Hz |
| Ambient temperature | −40 to +79°C (−40 to +175°F) |
| Enclosure | NEMA 4 |
| Mounting thread | 3/4 in NPT |
| Leadwires | 96 in (approx. 2.4 m), color-coded |
| Housing | Purple cast aluminum |
| Pressure rating | 20 psi (138 kPa) |
| Approvals | Depend on model code (Honeywell lists UL Listed, FM Approved, CE and others); please send the full model number |
Selecting a version
| Model | Features | Pressure rating | Notes |
|---|---|---|---|
| C7061A (standard) | NEMA 4 enclosure | 20 psi | General industrial environments |
| C7061F (explosion-proof) | Explosion-proof housing | Quartz window 100 psi (690 kPa) | Hazardous area rating depends on full model number (Honeywell data lists ATEX Ex d IIC T6 and UL Class I Groups C, D); please send the full model number |
Installation notes: mount the detector so that the conduit opening points about 45° below horizontal to keep condensation out. Aim at the root of the flame, where UV energy peaks, not at the tip. Two detectors can be used in parallel to reduce nuisance shutdowns caused by interference on a single sensor.
Discontinuation: Honeywell has discontinued the C7061A-1012; the direct replacement is the C7061A1053.
Please tell us when requesting a quote: (1) existing model number and quantity (2) installation area (general / hazardous) (3) amplifier used (R7861 or other) (4) whether you need quartz windows or UV tube consumables.
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