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Jan 19, 2018 - Articles
Bump Testing Ammonia (NH3) Gas Detectors

Bump testing a gas sensor involves flowing a concentration of gas that is slightly higher than the Low alarm setpoint of the gas detector for a short period of time (1-2 minutes or less). The purpose of a bump test is to confirm that the sensor responds to the presence of gas, the low alarm will activate and the gas detector overall is operating appropriately. 

Sep 23, 2016 - Articles
How do You Know if Your Gas Detector is Working Properly?

So, you have a fixed gas detection system installed. Is it monitoring and measuring correctly, and will it alarm appropriately? A properly functioning as detector could be the different between life and death. Do you know how to determine if it is working properly?

Apr 20, 2016 - Articles
Enclosure Ratings: What NEMA Type Does an IP54 Rating Equal?

CETCI’s products are tested to the IP54 International standards, they are not tested to NEMA standards. The numbers that follow the letters ‘IP’ have specific meanings. In the case of IP54, 5 means protected against dust that may harm equipment and 4 means protected against water spray from all directions. Does IP54 have an equivalent NEMA Type?

Nov 25, 2015 - Articles
Monitoring Ozone (in the air) in Hatcheries and Fish Farms

Critical Environment Technologies Canada Inc, (CETCI) offers strategic and reliable gas detection solutions for many applications, including ozone gas detection in the aquaculture industry.

Nov 25, 2015 - Articles
Monitoring Ethylene (C2H4) and Carbon Dioxide (CO2) in Ripening Rooms

Ethylene is not harmful to humans in the concentrations used in ripening rooms. The cause for concern is for the safety of the fruits and vegetables. In addition, ethylene is a very reactive and flammable gas, making the potential for an explosion a safety concern. 

Nov 25, 2015 - Articles
Bubbles That Lead to Troubles

Where there is a soda dispensing machine, close by is at least one cylinder of carbon dioxide (CO2). This odourless, colorless and potentially harmful gas is used to create fizzy, carbonated soft drinks enjoyed at fast food chains, restaurants, corner stores, sports arenas, grocery stores and many other venues. 

Jul 28, 2015 - Articles
Residential vs Commercial Gas Detectors

While it might be tempting to buy the cheaper residential gas detector, there are some important differences in performance, diagnostics, regulatory standards, and configurability that makes using residential models in commercial or industrial environments insufficient, dangerous and unlawful.

Jul 28, 2015 - Articles
What is the Difference Between Explosion Proof and Intrinsically Safe Gas Detectors?

Gas detectors for hazardous location applications must meet strict codes and standards, including requiring the equipment to be either explosion proof or intrinsically safe. What is the difference between these two methods of explosion protection?

Mar 26, 2015 - Articles
Gas Detection in Public Swimming Pool Facilities

Recreational facilities’ indoor swimming pools provide a venue for exercise, competition and fun for all ages as patrons splash, swim, dive and float around in the crystal clear water. To keep the water fit to swim in requires a disinfectant maintenance program commonly using Chlorine, or Chlorine and Ozone. An appropriate gas detection system should be put in place to continuously monitor and alarm if the gas levels reach concentrations that risk human health and safety.

Feb 13, 2015 - Articles
Monitoring Multiple Gas Hazards in Ice Arenas

What is a Canadian winter without ice hockey, figure skating or curling? While outdoor skating opportunities are a delight only Mother Nature can provide, community recreational facilities with ice arenas are plentiful and well attended. But there could be dangers present in this place of cheers, whistles and shots on net. 

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