INFICON 2020ppbPRO Portable Photoionization Detector - Manual (Page 67)

ISP-074-576-P1D 61
Regulators for Compressed Gases
When connecting a regulator to a large cylinder:

Ensure cylinder valve and regulator connection match.

Ensure regulator construction materials are compatible with the gas, and that
the cylinder pressure gauge will withstand the cylinder pressure.

Never use the regulator as a shut-off valve. Close the cylinder when it is not in
use.

Do not subject the regulator to an inlet pressure greater than recommended.

Do not move or detach the regulator when it is pressurized or when it is in use.

Before connection, ensure the gas cylinder valve and the regulator CGA
connection are clean.

Turn the pressure control valve on the cylinder all the way off (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 the 2020ppbPRO 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 63 for more details.
Calibration Using the Flow-Match Regulator
Connecting the Flow-Match Regulator to the
Cylinder
WARNING
Observe proper handling procedure for all gases!
To connect the flow-match regulator to the gas cylinder:
1. Connect the regulator to the calibration gas cylinder.
2. If you are using a portable tank of calibration gas (Part No. MX350025),
connect the regulator (Part No. MX350006) directly to the tank.
3. When the regulator is connected properly, you can read the cylinder
contents from the regulator gauge.
4. Connect the adapter tubing to the regulator.