Honeywell UV detector C7061A1053/U

Honeywell UV detector C7061A1053/U is an industrial flame sensor that detects ultraviolet radiation during combustion of gases, oil, and other fuels. It features dynamic self-monitoring and a shutter mechanism oscillating at 60 times per minute. The detector is compatible with R7061 and R7861 amplifiers, as well as R4348 and 7800 series programmers. It has a 3/4" NPT connection thread, weighs 3300 g (7.3 lb), and supports a maximum cable distance of 300 m. The UV sensing tube operates within a temperature range of -40°C to -40°F, and the device is rated for pressure up to 138 kPa (20 psi).

Parts of this type are selected by matching the detector's connection thread (commonly 3/4" or 1" NPT) to the sighting pipe, and by ensuring compatibility with the existing amplifier and programmer models. The detector can be mounted horizontally, vertically, or at any angle, and may require a mounting flange or swivel bracket for proper alignment. Before ordering, verify the cable length and the required distance to the control unit, as well as the temperature and pressure ratings for the application.

When UV detectors of this kind fail, common symptoms include false alarms, failure to detect flame, or intermittent operation. The equipment may shut down or trigger an alarm due to incorrect sensor response. Check the UV sensing tube for damage or contamination, verify the shutter mechanism operates at the correct frequency, and inspect the cable connections for continuity or shorts.