Heath Consultants Detecto-Pak 4 (DP) - Manual (Page 17)

100786-0 Rev. D 05/09
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CHAPTER THREE
III. CALIBRATION MOTHER TANKS/CALIBRATION
CYLINDERS:
This Chapter discusses, in detail, the proper steps to take in transferring
calibration gas to a calibration cylinder.
Recommendations for ordering calibration gas mother tanks, along with
proper storage, are also discussed.
A. CALIBRATION GAS MIXTURES
The calibration gas is comprised of a mixture of 100 ppm + 10% methane,
balance zero air. The calibration gas mixture is drawn into the instrument
at the inlet of the filter housing to ensure proper sensitivity level (See
Chapter Six for a detailed explanation of this method.)
B. TRANSFILLING CALIBRATION CYLINDERS
Heath assumes no liability in the refilling of calibration cylinders. If you
wish to refill your own calibration cylinders, caution must be exercised
during the refilling process. It is also recommended that all safety precau-
tions be used in the handling of high-pressure compressed, flammable
gases during the refilling process.
To refill the calibration cylinder, connect the calibration transfiller to
a calibration mother tank, then attach a non contaminated calibration
cylinder to the Transfiller. See Figure 3 this Section and **NOTE**,
Section II, C of Chapter Two.