Continuous monitoring of the atmosphere within a confined space has always been considered a best practice, but is difficult and often impractical to implement. In this Ask John we answer the question about how the flexibility of wireless gas detectors is changing the way we test the atmosphere inside confined spaces. Previously, the attendant assigned […]

Some people believe a gas detector with pump is far better – that no pump means less accuracy, slower response, and it simply won’t detect as much gas. FACT: A gas detector with pump doesn’t mean it is more accurate, responds quicker or covers more area around you. But it will make some tasks much […]

Nobody wants to buy gas detectors. But buying the right gear is a critical part of making sure your staff are safe and get to see their families each night. Nobody wants to buy safety equipment, including gas detectors. But selecting and buying the appropriate gear is a critical part of making sure your teams […]

In this Ask John we explain confined spaces and the lurking hazards. Then we answer the question… Why use gas detectors when working in confined spaces? Confined space definition… “An enclosed or partially enclosed space that is not intended or designed primarily for human occupancy. It is liable to have an atmosphere that contains harmful […]

Gas detectors use sensors to measure the levels of target gases. Why calibrate new sensors? Sensor performance is prone to drift over time and with exposure to gaseous environments. That’s why you need to calibrate them regularly – to ensure the sensors are working accurately. What does the calibration process involve? Calibration involves testing the […]

All electrochemical or catalytic gas monitor sensors can be prone to both positive and negative drift due to environmental factors such as changes in temperature and humidity. However these are not the most common causes of negative readings. Negative sensor readings more commonly occur when