Gas Requirements - Micromeritics ACCUPYC II 1345 Operator's Manual

1 About the AccuPyc II
G R
AS EQUIREMENTS
Guidelines for Connecting Gases on page 12 - 11
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Improper handling, disposing of, or transporting potentially hazardous materials can
cause serious bodily harm or damage the instrument. Always refer to the MSDS when
handling hazardous materials. Safe operation and handling of the instrument, supplies,
and accessories is the responsibility of the operator.
Toxic, corrosive, flammable, poisonous, or injurious gases should not be used with the
AccuPyc.
The pycnometer uses helium or nitrogen (99.995% pure or better) to provide rapid, accurate
analyses. The cylinder containing helium must be fitted with a gas regulator set for 19-23 psig (131-
159 kPag). The pressure input to the pycnometer should never be greater than 25 psig (172 kPag).
Excessive pressures waste gas due to a protection device contained in the pycnometer that vents
the pycnometer to atmospheric pressure if pressure exceeds 35 psig (241 kPag). This protection
device is not installed on 2000 cm
The High Pressure sample chamber configuration inlet pressure should never be
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greater than 520 psig (3580 kPag); there is no pressure relief valve.
Tank pressure should be at least 200 psi above regulator pressure.
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Other inert, dry gases can also be used and may be more applicable for some applications.
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or high pressure units.
AccuPyc II 1345 Operator Manual
134-42851-01 (Rev A) — Jan 2021