Kromschroder Flame sensor UVC1D1G1A 84320301

The Kromschroder UVC1D1G1A (SKU 84320301) is a UV flame sensor designed for monitoring flames that emit UV radiation in industrial thermoprocessing systems. It operates on a supply voltage of 100–230 V AC and uses a P578 UV tube with a spectral range of 190–270 nm. The sensor has a designed lifetime of 10 years and a service life of approximately 10,000 operating hours. It features an aluminum housing, a quartz glass lens, and an M20 cable gland for cooling air connection. The sensor is compatible with Kromschroder BCU and PFU burner control units.

When selecting a replacement UV flame sensor of this type, ensure the supply voltage, cable length (between 2 m and 100 m), and distance to the flame (300–400 mm) match the system requirements. The sensor must be compatible with the burner control unit model, and the connection thread (RP 1/2) and cable gland size (M20) should fit the existing mounting. Verify the clamping range of the connection terminals (0.5–1.5 mm²) and the ambient temperature range (-20–80 °C) to ensure proper operation.

Common failure modes for UV flame sensors include degradation of the UV tube, which may lead to intermittent or loss of flame detection. Symptoms may include burner lockouts, false flame signals, or failure to ignite. Check the sensor's lens for dirt or damage, and verify the cable connections and supply voltage. If the sensor fails, it may need replacement after approximately 10,000 operating hours or if it exceeds its designed lifetime of 10 years.