
When
was the last time you calibrated the gas detectors in your facility? Probably
you don't remember or haven't thought much about it. Suppose your crew's
working condition is exposed to potentially hazardous gases or explosives
atmospheres. In that case, it's important to have well-maintained gas detectors
on board to prevent fatal fire accidents in the workplace.
But, most facility owners
often overlook the regular maintenance of life-saving equipment. You might
think you had just replaced the gas detectors last year, and there's nothing
wrong with them. But you might be wrong. Periodical maintenance of the gas
detectors is the only reliable and safest method to detect the presence of
hazardous gases in the atmosphere. Since gas detectors are used daily in dusty
and harsh environments, they can be subjected to a build-up of grime,
compromising the ability to identify hazardous levels of gases in the air.
In
this article, we've shared some tips and advice on maintaining your gas
detectors.
Bump Tests and Calibration
Regular maintenance, like bump tests and calibration,
plays a crucial role in keeping the gas monitors healthy. While these tests are
relatively easy and inexpensive, they are overlooked as most workers focus on
getting their day started.
So, what is
bump testing? Bump testing exposes the sensors of gas detectors to a high
concentration of gas higher than the alarm set levels. Bump testing through
calibration gas is crucial, and it's the only way to ensure that a methane gas detector and other gas monitors respond to
alarms as they should. While bump testing proves that the sensors are picking
up gas concentration and the alarms are working, it doesn't guarantee accuracy.
So to verify the accuracy and efficiency of the gas
monitors, it's important to perform calibration once a month or according to
the manufacturer's safety standards by exposing the monitors to the known
concentration of calibration
gas for a
certain period. This helps to combat the gas readings impacted by gases or
sensor drift and ensures the safety of the working personnel and the facility.
Do’s and
Don’ts of Gas Monitor Maintenance
·
Keep the
monitor clean and free of obstruction to the sensors inside.
·
Never use
harsh chemicals or abrasive cleaners on the gas detectors. Wipe the monitor
with a wipe cloth to remove the dust and dirt.
·
Filters
should be replaced regularly.
·
Inspect the
monitor regularly, check for cracks, faults, or broken pieces and fix them
immediately.
·
If anything
looks abnormal, ask for a replacement or repair before using the gas detector.
·
Batteries
should have a fresh charge to ensure it doesn’t give up in the middle of the
job, leaving you susceptible to dangerous gases.
·
Perform
bump tests daily before starting the work.
·
Never use
expired gases for performing a bump test.
·
Ensure the
gas detectors are calibrated using the same calibration
gas every three
months or so and adjust it based on the workload.
·
Replace the
sensors regularly as they analyse the presence of gas in the environment and
trigger the meter to signal an alarm.
Only some facilities have the expertise and employees to perform bump tests, calibrations, and repairs. Let the experts handle it so you can depend on the gas monitors to work in crucial moments. Preventive maintenance can help ensure the efficiency of the gas monitors.
