A h2d monitor is an electrochemical sensor that detects hydrogen sulfide (H2S). This colorless gas, also known as sewer gas, swamp gas or stink damp due to its potent rotten smell, can be generated in industries including tanning, oil and gas refining, paper processing and rayon manufacturing. It can also occur naturally in sewage, manure pits, landfills and breweries. Go here
H2S is toxic at even low concentrations and can cause a wide range of symptoms from eye irritation, headaches, unconsciousness and even death. That’s why it’s critical that every team member wear a personal H2S monitor when they enter confined spaces.
Gas Detectors: Your Reliable Defense Against Invisible Dangers
The right gas detector is lightweight, easy to wear and won’t get in the way of work. Some models come with clips that attach to clothing and are designed to be worn in the breathing zone, which is about a nine-inch area around the person’s nose and mouth. Ideally, the monitor should be clipped to the worker’s hard hat or lapel and not obstructed by equipment or clothing.
Some personal H2S monitors also have a feature called “bump test” that allows workers to manually expose the device to a 25 ppm solution of H2S for at least one minute. This ensures the sensor is working correctly and can help prevent false alarms. Other features to consider include a backlight, rate-of-rise function and programmed emergency reporting.