Infrared LEL Gas Sensors – Risk or Reward?

Infrared LEL Gas Sensors – Risk or Reward? What are the limitations of infrared LEL gas sensors? There has been a lot of recent discussion about the benefits of infrared LEL gas sensors for the oil and gas industry. There have even been claims that these sensors operate for years without calibration while extending instrument run times from hours to months without recharging batteries. The benefits of infrared technology over the industry standard catalytic bead... Read More

The Simple Truth of Calibration Gas Shelf Life

The Simple Truth of Calibration Gas Shelf Life Calibration gas is an important component in ensuring the proper performance of your gas monitors. Regular calibrations promote the accurate measurement of gas concentration values. During calibration, a unit’s installed sensors are to be exposed to their set concentrations of calibration gases. Based on the sensors’ responses, the unit will self-adjust to compensate for declining sensor sensitivity, which naturally occurs... Read More

Are All Carbon Monoxide Sensors the Same?

Are All Carbon Monoxide Sensors the Same? The short answer is – no, all carbon monoxide (CO) sensors are not the same. CO sensors are found in gas monitors used by workers conducting their jobs in environments where toxic CO gas might be present. With CO being a result of incomplete combustion, it can be found in the majority of industries and poses a big threat to workers today. While most CO sensors are based on the same electro-chemistry, there are many different... Read More

No Calibration Required?

Gas Detectors can be difficult to maintain, especially when you need to perform frequent instrument calibration. Calibration is not a particularly challenging or time consuming process. It only requires a few minutes and a few button presses. The tough part is finding the time in your schedule when countless other tasks demand your attention. As your days get busier, it gets harder to find the time to stop and maintain... Read More

Are Low-Power Infrared Sensors the Cure-All for Combustible Gas Detection?

In a recent article entitled “LED-Driven Infrared Sensors: Shining New Light on LEL Gas Measurement for Oil and Gas and Confined Space Entry Applications” published in Industrial Hygiene News, Bryan Bates, CEO of GasClip Technologies, touted the benefits of using low-power infrared sensors for detecting combustible gases over the industry standard catalytic bead sensing technology.  While there can be no doubt that the... Read More

Why do LEL sensors drift so much?

In recent weeks, I have addressed many questions as to why catalytic bead LEL sensors seem to drift so much, particularly in  the hot, humid summer weather.  To understand the reason for the drift, you must understand the operating principle behind the sensors themselves. Catalytic bead LEL sensors are made up of two resistive fine-wire elements, one a detector and the other a reference.  As the detector element encounters... Read More