Walmart Canada Logistics, Balzac Warehouse

Walmart contacted Kae and the Gasonic team because they were getting a high CO reading on their gas monitoring system. We were asked to investigate, and try to figure out where the gas was coming from.

Kae’s 30-year experience with gas monitoring sensors lead him to the prediction that there must have been hydrogen in the air, and that it was the hydrogen that was interfering with the CO sensor reading, resulting in a higher reading than was accurate. Kae believed it to be a characteristic with the sensor, and if you put hydrogen near it, it reacts as if it’s CO.

Walmart was using fuel cell forklift trucks, so the Gasonic team came up with a sampling strategy to prove that there was a tiny bit of hydrogen leaking from the exhaust from the fuel cell.

Walmart hired Gasonic to test our theory and we conducted a survey and proved that it was indeed hydrogen interference that was causing the CO sensors to alarm.

While we were at their warehouse, Gasonic also did the calibration on their sensors, to ensure everything was working properly.

We were pleased to learn that the report we created for Walmart in Balzac was then sent to all the similar Walmart warehouses around north America which use fuel cell forklift trucks.

This report provided the proof that of interference of the hydrogen could cause a high CO reading on their gas monitoring systems.

This information was vital because one day they had an alarm and had to call in the fire department. Because of the report, they were able to prevent the evacuation efficiently. They didn’t need to evacuate, and were able to continue running a smooth operation.