275989 - Miller BreatheAir CO Monitor Calibration Kit (5 PPM)

Precise Calibration for Breathing Air Safety

The Miller 275989 Monitor Calibration Kit is an essential maintenance tool for facilities utilizing Miller BreatheAir™ supplied air respirator systems. Designed to ensure the accuracy of Carbon Monoxide (CO) monitors integrated into filtration boxes and panels, this kit is critical for maintaining compliance with occupational safety standards, particularly those requiring a 5 ppm CO alarm threshold (common in Canada and increasingly in other regions).

Regular calibration of gas detection equipment is mandatory to verify that sensors are drifting within acceptable limits and responding correctly to the presence of hazardous gases. This kit provides a complete solution, featuring both a zero-point reference and a span gas reference. The inclusion of Zero Air allows technicians to set the baseline reading of the sensor, ensuring that it reads zero in a clean atmosphere. The 10 PPM CO cylinder is used to span the sensor, verifying that it accurately detects carbon monoxide at the critical levels needed to trigger safety alarms.

The kit is supplied in a rugged hard case, protecting the gas cylinders and regulator from damage in industrial environments. It includes a high-quality regulator and tubing specifically matched to the cylinders, ensuring the correct flow rate for calibration procedures. Also included are calibration stickers to document service dates directly on the equipment, facilitating easy visual inspection of compliance status.