Regulators For Compressed Gases; Calibration Gas; Battery Pack Care - PerkinElmer Photovac 2020 Manual

Portable photoionization detector
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2020 Software Manual

Regulators for Compressed Gases

When connecting a regulator to a large cylinder:
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Ensure cylinder valve and regulator connection match.
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Ensure regulator construction materials are compatible with the
gas, and that the cylinder pressure gauge will withstand the
cylinder pressure.
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Never use the regulator as a shut-off valve. Close the cylinder
when it is not in use.
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Do not subject the regulator to an inlet pressure greater than
recommended.
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Do not move or detach the regulator when it is pressurized or
when it is in use.
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Before connection, ensure the gas cylinder valve and the
regulator CGA connection are clean.
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Turn the pressure control valve on the cylinder all the way out
(close the cylinder). Turn the regulator outlet to off. Open the
gas cylinder valve slowly and check for leaks. Adjust the
delivery pressure and then open the regulator outlet valve.

Calibration Gas

Adequate ventilation must be provided when 2020 is being
calibrated.
If compound threshold limit values (TLV™) are exceeded, you
should use a gas bag for sampling and calibration.
To determine the TLV of the compounds contained in the calibration
gas, refer to the Material Safety Data Sheet (MSDS) supplied with
your calibration gas cylinder. See Calibration Using a Gas Bag on
page 73 for more details.

Battery Pack Care

Leaving 2020 for more than 3 months, without turning it on, may
result in the loss of recorded data and setup parameters. If 2020 is
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