INFICON Explorer Portable Gas Chromatograph - Manual (Page 249)

Explorer Operator Manual
247
5. When the password is requested, enter 12344321 and press Enter Menu.
You are now in supervisor mode.
The password is factory set and cannot be changed.
6. Press SETUP, CONFIG, and COLUMN to select the column to be flushed.
7. Press SETUP, CONFIG, METHOD, and PRESS to increase the flow through
the columns.
Set the pressure to the maximum of 14 psig and allow the column to flush for a
few hours until the offset level returns to 200-800 mV.
NOTE: If the instrument is in user mode, you will not be able to increase the flow rate.
8. Ensure the internal carrier gas tank is full or connect the instrument to an
external tank of carrier gas as detailed in Carrier Gas starting on page 44.
Flushing all Three Columns
1. Move the instrument to an area where the ambient air contains no VOCs.
2. Connect a supply of carrier gas to the sample in port.
3. Use a clean gas bag filled with zero air or nitrogen, or if you are using a
pressurized supply of gas, set the delivery pressure to no more than 14 psig.
4. If the instrument is auto-analyzing, disable the option.
5. Switch to supervisor mode by pressing Enter Menu, then SETUP and MODE,
then use the arrow keys to select Super.
6. When the password is requested, enter 12344321 and press Enter Menu.
You are now in supervisor mode.
The password is factory set and cannot be changed.
7. Press SETUP, CONFIG, and COLUMN to select all the columns to be flushed.