INFICON 2020ComboPRO Portable Photoionization Detector - Manual (Page 71)

64 ISP-074-575-P1D 64
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.
If you will be using a gas bag for span gas calibration, see Calibration Using
Accessory Gas Bag on page 67 for instructions.
Compressed Gases
Cylinders of compressed gas, such as calibration gas, must be handled with extreme
care. For safety, the calibration gas cylinders must be secured before use.
Please observe the following handling procedures:

Mark each new regulator with its intended gas service and never use a regulator
for more than one service. To ensure safety and avoid contamination, regulators
should be dedicated to one service. Do not change gas service or adapt
equipment without consulting your gas supplier.

Do not heat or expose cylinders or regulators to temperatures above 52°C
(125°F). The cylinders may rupture at high temperatures.

Use only the specified regulator for the calibration gas. Confirm regulator type
and material with your specialty gas supplier.

Always secure cylinders before removing the cylinder valve protection cap.

Do not drag or roll cylinders. Large cylinders should only be moved on carts
designed for compressed gas cylinders. Do not move cylinders without the valve
protection cap in place.

Wear safety glasses when working with compressed gases.

Do not store cylinders in a hazardous location. Store cylinders in an upright
position away from possible sources of heat or sparks.

Never plug, obstruct or tamper with safety relief devices.
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 off the regulator outlet. Open the gas cylinder valve slowly and
check for leaks. Adjust the delivery pressure and then open the regulator outlet
valve.