Baltur 5030048 FC13 خلية ضوئية حمراء

This item is a Baltur 5030048 FC13 red photocell, listed under flame sensors. As a photocell, it belongs to the class of optical flame detectors that respond to the visible or infrared light emitted by a flame. Such sensors are used on burners where the flame is luminous—typically oil-fired or industrial burners—and where the detector must have a direct line of sight to the flame. The name "red photocell" indicates the spectral sensitivity is toward the red end of the visible or near-infrared spectrum, but the exact range and response time are not given here. When selecting a replacement photocell, the key parameters are the spectral range (which must match the burner’s flame colour), the response time (to stay within the burner control’s safety time), the cable length and connector type, and the mounting sleeve diameter. The sensor is usually fitted into a sight tube or a mounting flange that allows it to view the flame without overheating. Common failure modes include a contaminated or fogged lens, an aged cell that no longer generates a strong enough signal, or a cracked sheath. Regular cleaning of the sight glass and periodic signal checks can extend service life. In the burner safety sequence, a photocell of this type performs the flame‑proving step. After the ignition transformer sparks and fuel is admitted, the photocell must detect flame within the allotted safety time (typically a few seconds). Its output signal tells the burner control to keep the fuel valves open. If no flame is sensed, the control locks out and requires manual reset. Because the burner control is matched to the specific detector type, a replacement photocell must have the same electrical characteristics (e.g., output voltage or current, dark resistance) as the original, even if the physical fit is correct. Always verify compatibility with the control box before installation.