INFICON Explorer Portable Gas Chromatograph - Manual (Page 219)

Explorer Operator Manual
217
Figure 9 Connecting the Calibration Flow Adapter
4. A length of 1/4 “Teflon tubing with the 1/4” fittings is supplied with the flow
adapter, connect one end of the tube to the 1/8” to 1/4” adapter union and
connect the other end to the sample in port on
Explorer.
NOTE: If you will be using the extended probe or the long probe for sampling, ensure it is
connected to the sample in port during calibration. Connect the probe directly to the
1/8” to 1/4” adapter union instead of using the adapter tubing. You must also select
the probe option on
Explorer to allow for a longer pump time, by pressing Enter
Menu, then SETUP, MODE, INJECT, and PROBE and select the desired probe
from the box using the arrow keys. The pump time will be adjusted automatically.
5. Open the tank of calibration gas, opening the regulator valve slowly.
The float on the flow adapter must be floating. The float should not be in the
red zone and it must not be seated at the bottom of the tube. When the pump
comes on the float must still be floating, this will ensure calibration gas is
being properly delivered.
6. If you are not using the flow adapter, set the regulator to deliver 300 mL/min.
Use a stainless steel tee to vent the excess calibration gas.
NOTE: If any compounds contained in the calibration gas exceed the TLV concentrations,
perform the analyses in a well ventilated area or use a gas bag.
NOTE: Allow the calibration gas to flush all the tubing before beginning an analysis. After
the injection has been made, close the tank of calibration gas and then close the
regulator.