INFICON Explorer Portable Gas Chromatograph - Manual (Page 218)

Calibration
216
Connecting Calibration Gas
WARNING
Observe proper handling procedure for all compressed gases.
1. Connect a regulator to the tank of calibration gas.
If more than one tank of calibration gas is required, connect a regulator to each
tank.
NOTE: Do not use regulators interchangeably as this will lead to contamination and
erroneous calibration results. Refer to the user notes supplied with your assay to
determine what type of calibration gas you require.
2. Using a calibration flow adapter (MX380328), connect the regulator to the inlet
of the flow adapter.
You cannot connect a supply of pressurized calibration gas directly to the
sample in port. The excess gas must be vented to atmosphere.
The adapter is supplied with a 1/4”parallel compression fitting. If this does not
fit your regulator you can remove the parallel to NPT adapter and use the 1/8”
NPT port. You must put new Teflon tape on the male NPT thread in order to
obtain a leak tight seal.
You may need to use an additional length of stainless steel tubing between the
regulator and the flow adapter to ensure the flow meter is perpendicular to the
floor. If the flow meter is not upright, you may get erroneous flow rates.
3. Connect the tubing from the flow adapter to the adapter union (1/4” to 1/8”), as
shown in Figure 9.