Honeywell EC-FX-NH3-HR Replacement Ammonia Cell

The Honeywell EC-FX-NH3-HR is a high-resolution electrochemical sensor designed specifically for the EC-FX-NH3 ammonia gas detector. Engineered to handle dual-range detection, it monitors concentrations of 0-500 ppm and 0-1000 ppm with high precision in harsh industrial refrigeration environments. As the direct replacement for M-507975, this cell ensures seamless mechanical and electrical compatibility during scheduled maintenance cycles. This Honeywell ammonia sensor replacement features enhanced electrolyte stability to withstand rapid pressure changes and frequent concentration fluctuations often found in mechanical rooms. For technicians performing NH3 gas detector calibration, the EC-FX-NH3-HR offers a stable baseline and fast T90 response times, reducing downtime during routine sensor swaps. Utilizing this Honeywell EC-FX gas sensor maintains the integrity of the life safety system, ensuring accurate detection of anhydrous ammonia leaks while minimizing cross-sensitivity to common industrial cleaning agents or temperature variances.

• Dual-Range Performance: Supports accurate ammonia detection across 0-500 ppm and 0-1000 ppm scales for versatile facility coverage.
• Plug-and-Play Compatibility: Designed for immediate installation into existing EC-FX series transmitters without requiring housing modifications.
• Enhanced Environmental Resistance: Optimized for the variable humidity and temperature conditions typical of ammonia refrigeration plants.
• Exact OEM Match: Provides the precise electrical output required to match the factory calibration profiles of the Honeywell EC-FX-NH3 series.

Is the EC-FX-NH3-HR compatible with older M-507975 installations?
Yes, this is the official Honeywell replacement part specifically engineered to supersede the M-507975, ensuring complete electrical and physical compatibility for existing systems.

What is the typical shelf life for an uninstalled ammonia gas sensor?
Electrochemical cells should be installed as soon as possible, as the electrolyte can degrade over time; storing them in a cool, controlled environment is essential to preserve functionality before field deployment.

Does this sensor require field calibration after installation?
While factory-calibrated, a full field calibration using certified NH3 span gas is a standard best practice for all technicians to ensure the transmitter accurately reads the new sensor's specific output curve.

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.