Honeywell 129464M Sensing Tube

The Honeywell 129464M Sensing Tube is a vital component for flame detection systems, specifically engineered for compatibility with the Honeywell C7035 Minipeeper series. This quartz UV sensing tube serves as the primary detector for ultraviolet radiation in gas, oil, and dual-fuel burners. Operating within a robust temperature range of 0 to 250 degrees Fahrenheit, the 129464M ensures reliable flame monitoring in high-heat industrial environments. For contractors maintaining Honeywell flame safeguards, replacing a clouded or degraded UV sensor bulb is standard preventive maintenance to avoid nuisance shutdowns or Honeywell C7035 troubleshooting issues. This sensing tube provides the necessary sensitivity to distinguish the ultraviolet signal of a flame from background radiation, essential for maintaining strict combustion safety protocols and ensuring proper flame detector maintenance cycles.

• Precise UV Detection: Optimized for the spectral sensitivity required by C7035A and C7035B compact flame detectors.
• Thermal Resilience: Rated for surface temperatures up to 250°F (121°C), preventing premature failure in standard burner housings.
• OEM Compatibility: Exact replacement part ensures electrical and mechanical alignment without field modifications.
• Enhanced System Reliability: Restores peak signal strength to the flame amplifier, reducing intermittent signal dropouts.

How do I test the Honeywell 129464M for failure?
Technicians should measure the micro-amp signal at the flame safeguard while the burner is firing; a significant drop in signal intensity often indicates the quartz envelope has become coated or the internal gas has depleted.

Can this tube be used in continuous pilot applications?
Yes, when installed in a compatible C7035 housing, it is suitable for both intermittent and continuous pilot monitoring, provided the ambient temperature stays within the 250-degree limit.

What causes these sensing tubes to fail prematurely?
Exposure to temperatures exceeding 250°F or the buildup of soot and oil film on the glass will impede UV light transmission, necessitating a replacement of the 129464M UV tube.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.