The ESA Pyronics 74903 is a UV-2 Flame Detector with 10673 3/4" CHLG-2 Support. This flame detector is used in combination with Shutter SHR for burner operation applications.
The flame detector is divided into 4 parts:
The flame detector has a 3/4" thread to connect to the Shutter SHR die-cast aluminum body. In the UV tube section, it is filled with gas that will be ionized by the UV-rays. Applicable to other ESA electronic systems. When ESA UV-2 Flame Detector is in used, it must be operated within its range.
The UV-2 flame detector should be handled with care and you need to take note of the hazards. Remember to cover the photo-tube housing for the reason that it produces UV radiation during flame detection which can be captured by other photo-tubes. Also, be cautious in handling and prevent falling that may damage the detector quartz bulb. Consistently check and clean the photo-tube to prevent dust or dirt accumulation which can affect the signal. Only unipolar cables can be used.
| Operating Temperature | -20 to + 60C |
|---|---|
| Supply Voltage | 280-400V |
| Spectral Response | 185-260 nm |
| Peepsight Connection | 3/4" |
| Discharge Starting Voltage | (with UV radiation) 280V |
| Electrical Protection | IP54 |
| Recommended Operating Voltage | 325 +/- 25V |
| Recommended Discharge Current | 100μA |
| Life Service with Continuous Discharge | >10,000 hrs. |
Download Product Information:
ESA Pyronics 74903 UV-2 Flame Detector Technical Datasheet
ESA Pyronics Shutter SHR for UV-2 Series Technical Datasheet
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