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Gas monitors are sophisticated instruments, but changing sensors is easy. By taking your time and following these simple instructions for replacing sensors, your BW Honeywell monitor will be back in the field in no time. Remember, new sensors require a few hours to burn in - especially the O2 sensor - so don't turn the monitor on right away. Once you restart the monitor, you may receive a "sensor fail" message. Check through your work to make sure you installed the new sensors all the w …

Calibration is very important for a gas monitor. It reestablishes a base line accuracy for the sensors, both electro-chemical and LEL catalytic bead. In order to perform as they were designed, gas monitors need to periodically be readjusted in the same way a guitar string needs tuning. Calibration of your gas monitors isn't difficult or time consuming (unless you have several hundred monitors, in which case it can be very tedious) and it's essential for accurate measurements over time. …

Not everybody wants a two-year disposable single-gas monitor for hydrogen sulfide or carbon monoxide detection. Many of today's single gas monitors come with a fixed life span. This type of monitor is helpful for certain gas monitoring programs. There are job sites where a monitor is dropped down a crack or lost under the seat of the truck every day, and an inexpensive monitor is the best choice. But there are just as many sites where close attention to gas levels is a priority and many of th …

The Occupational Safety and Health Administration (OSHA) would like your gas detectors calibrated before each use. A full calibration for a 4-gas monitor requires about $6.60 worth of calibration gas, and takes about 5 minutes. This should be all the answer anyone needs, but in practice if your company has 500 monitors, it isn’t always practical and OSHA and ANSI know it. In text attempting to clarify the issue, the two regulatory agencies submit that it is best to follow the manufactur …