Calibration:
The MGD-2002 is a precision measuring device that requires factory
calibration in order to ensure continued and sustained optimum oper-
ating performance. Periodicity between calibration cycles is dependant
on the environment in which the device is to be used, the end user’s
criteria for the equipment, and the amount of time the equipment is
used throughout the year. For example, decision criteria for choosing a
calibration periodicity includes items such as the environment, is the
device going to be used in a harsh environment or in a clean room?
How frequently is this device going to be used (once a month, every six
months or daily)? Is the highest accuracy strictly required or is the end
user just identifying the area with the highest concentration of hydro-
gen or helium?
We at Dielectric recommend that if you frequently use this device or
the accuracy is strictly required, the calibration should be a minimum of
once per year. If however the device is used infrequently or the accu-
racy is not as critical, factory recalibration can be delayed to as much as
every two years.
Sending the unit back for calibration is not limited to the yearly or
biannual calibration cycle chosen. For example, the user may suspect
inaccurate operation that may be the result of the filters or plumbing
being compromised with an oil residue, oil vapors, water, dirt, petro-
leum vapors, or some other foreign material including grass and in-
sects.
During the factory re-calibration, the following value added steps
and procedures will be accomplished:
1) Inspection
2) Light cleaning (As required)
3) Silica gel filter dried (As required)
4) Carbon filter replaced
5) Intake and exhaust filter replaced
6) Air volume checked and adjusted
7) Temperature sensors checked and adjusted
8) Software updates installed (As available)
9) Calibration procedure completed
10) ISO Calibration Certificate (Optional)
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