Hydrogen Sulfide Monitor
Hydrogen H2S monitor are used in a variety of applications in oil refineries and other industries. This toxic gas can cause a range of health problems, especially when exposed at high concentrations for prolonged periods of time.
Portable H2S monitors are critical in the agricultural industry, as livestock can be prone to exposure to lethal levels of this deadly compound. These monitors are designed to quickly detect dangerous levels of hydrogen sulfide and signal alarms before the worker’s sense of smell is killed by exposure. These monitors use electrochemical sensors to measure parts-per-billion (‘ppb’) and parts-per-million (‘ppm’) levels of the chemical.
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Most personal H2S monitors are battery operated and can be worn on the user’s body to provide continuous monitoring. They are also typically dustproof and waterproof, making them ideal for use in harsh environments. Some models also feature built-in dataloggers that can record a month or more of continuous measurement and alarm history. These loggers can be retrieved from the monitor using a docking station or infrared adapter.
Like all personal gas monitors, H2S detectors must be periodically challenged with a known concentration of test gas to ensure the sensor can still reliably detect and alarm at appropriate levels. This process is referred to as “bump testing” and can be performed by attaching the monitor to a bottle of test gas. As shown in the table below, bump testing is particularly important late in the monitor’s life, when the likelihood of failure becomes much greater.
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