GxT V016-01, Ferret 16 GasLink II 5-Gas Analyzer - Manual (Page 13)

13
Maintenance - Zero & Purge
Zero
Use the SELECT buttons to move the selection arrow to select one
of the Calibration and Maintenance program.
When you select Zero, the analyzer will stop sampling gas from the
sample hose and will perform a zero of the bench. There is no need
to remove the sample hose from the tailpipe. Zeroing the analyzer
periodically will maintain the accuracy of the unit during testing.
Purge
Use the SELECT buttons to move the selection arrow to select one
of the Calibration and Maintenance program.
There are two Purge choices. One Purge function will purge for 1
minute, the other will purge for 5 minutes. Regardless of the purge
time selected, the analyzer will stop sampling gas from the sample
hose and will perform a purge of the bench and hose. There is no
need to remove the sample hose from the tailpipe. Purging clears
water and contaminants from the sample hose.