RKI Instruments GX-2012 Manual - Manual (Page 37)

GX-2012 Operator’s Manual Measuring Mode, Normal Operation • 29
NOTE: Response time increases with the length of the sample hose. Long
sample hoses will require more time to show a response at the GX-
2012. The maximum sample hose length recommended for the GX-
2012 is 50 feet. Consult RKI Instruments, Inc. for longer sample
hose lengths.
4. If a gas alarm occurs, take appropriate action. See “Responding to
Alarms” on page 39.
Using Optional Probes and Fittings
This section describes how to use the 8 meter hose with floating head and the
purge tee fitting.
Using the 8 Meter Hose with Floating Head
This probe is designed to be used in a tank or a well that may have water or
some other liquid at the bottom. To use the 8 meter hose with floating probe:
1. Start up the GX-2012 as described in “Start Up, Normal Mode” on
page 19.
2. Connect the 8 meter hose with floating probe to the GX-2012’s quick
connect inlet fitting.
3. Slowly lower the probe into the area you wish to monitor. If the probe
hits water, it will float and continue to monitor the area.
Figure 14: 8 Meter Hose with Floating Head
Using the Purge Tee Fitting
The purge fitting is used to detect gas levels in a pressurized gas stream from
a pipeline or vessel being purged.
1. Start up the GX-2012 as described in “Start Up, Normal Mode” on