OSHA recommends placing the H2S monitor within the breathing zone, ideally on the shirt collar. The 3 LED lights will continue to flash once every 30 seconds until the non-compliance condition has been resolved. BREATHING ZONE FOR H2S MONITORS One aspect of H2S personal safety that seems to cause much unnecessary confusion, especially with more experienced workers, remains with placement of the H2S gas personal monitor. The instrument flashes it’s 3 LED lights every 30 seconds in the following conditions if the instrument has not been bump tested, or if calibration is due, or if there was a gas alarm event. Safety supervisors will appreciate the non-compliance indicator. H2S and CO are now available in a combo micro sensor. Hydrogen sulfide - CAS is an extremely flammable and toxic gas that can cause many health effects as well as lethal paralysis of the respiratory. The new O2 sensor is electrochemical with a 3 to 5 year life span. If one filament gets poisoned the second filament takes over. The LEL sensor has a unique design with two active filaments in one sensor to increase it’s resistance to silicone poisoning. Treatment generally consists of support of respiratory and cardiovascular functions. There is no proven antidote for hydrogen sulfide poisoning. It is also an irritant affecting skin and mucous membranes. The GX-3R represents the latest evolution of gas detection technology utilizing a new generation of micro sensors. Hydrogen sulfide is a very rapidly acting, highly toxic gas that can produce rapid CNS and respiratory depression. Hydrogen sulfide (H2S): from 0 to 500 ppm in 0. It simultaneously monitors and displays LEL combustibles, O2, CO (Hydrogen compensated CO also available), and H2S. The GX-3R is the worlds smallest 4 gas monitor weighing only 3.52 ounces and can comfortably be clipped within a worker’s breathing zone (2.2” W x 2.55” H x 1.02” D). Oxygen effects on health Oxygen ( O2) is a colorless, odorless and tasteless gas that composes breathing air at 10.9. Now there is a 4 gas monitor smaller than many single gas monitors. This highly reactive gas can easily produce compounds (particularly oxides) from elements except for noble gases like helium or neon. Traditionally this means only a single gas monitor would be small enough for a worker to practically wear a gas monitor ‘In the breathing zone’. RKI Instruments GX-3R Four Gas Monitor OSHA defines the breathing zone as a ten inch radius around the workers nose and mouth, and requires that. Air sampling filters may be attached to the collar or lapel. OSHA defines the breathing zone as a ten inch radius around the worker’s nose and mouth, and requires that worker exposure monitoring air samples be collected in the breathing zone. If workers are in an environment with low visibility, they can use vibration alerts to protect themselves from toxic gases.RKI Instruments GX-3R Four Gas Monitor - the worlds smallest gas monitorĬlick here to learn more from RKI Instruments website It’s important to have detectors that issue visual alerts, usually with LED lights. If a worker is in a noisy environment, he or she may not be able to hear the traditional alarm. This puts a premium on size and weight, since the more common four-gas detectors have features and functionality which can lead to additional bulk.Īlso look for detectors that issue a variety of alerts and warning signals. A portable gas detector measures the breathing. However, there is a trend toward using multi-gas instruments for routine personal gas monitors. area, area monitoring should be performed when a person is both away and warn before re-entry into the zone. This works fine with a single gas instrument, as most of these are quite compact. As a safety professional looking for the right gas detector for your workers, comparing the size and weight should be a very close second to the performance and warranty offered by the manufacturer.Ĭhoose personal gas detectors small and lightweight enough to be worn on the person’s lapel, collar, or chest pocket without making workers uncomfortable on the job. Now that we’ve discussed where portable gas monitors should be worn, you need to make sure your safety equipment can be worn properly on the job. Workers should also be quick to correct workers who wear their personal gas detectors in the wrong location. Note that only a relatively robust surveyor-style vest will hold the typical gas detector without sagging.Įmployers should educate employees on why it’s important to wear portable gas detectors in the breathing zone. Similarly, the high visibility safety vest may likely good spot for attachment. The webbing on the harness offers a prime place high up on the shoulder strap to clip a portable detector. Workers who wear fall protection harnesses or high visibility vests actually may find it easiest to wear the monitor.
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