EAGLE 2 Operator’s Manual
Bar Hole Testing • 247
5. At the end of the sample period, the pump will shut off and the audible alarm will
sound, then the peak methane reading and the minimum oxygen reading for the
sample period will be displayed.
6.
If a high concentration of methane is encountered, a fresh air purge can be performed
to purge the hose, probe and EAGLE 2 of gas before the next bar hole test. To
perform a purge, do the following:
•
Remove the probe from the barhole so the instrument will draw fresh air.
•
Press and release the DISPLAY ADJUST NO button. The display will now
indicate “FRESH AIR PURGE . . .” below the oxygen reading and the purge time
will begin counting down from 30 seconds in the lower right corner of the
display.
•
After 15 seconds of sampling, if the CH
4
reading is less than 5 vol%, the CH
4
channel will automatically begin displaying in the units you selected earlier.
Since performing a fresh air purge draws fresh air, the display units should
always switch to the previously selected units. If you selected the methane
channel to be displayed in vol%, then after 15 seconds, the reading will remain in
vol%.
•
When the purge is complete, the screen will return to the initial Bar Hole Mode
screen.
7. If other bar holes will be tested, proceed to the next bar hole and repeat Step 3 - Step
6.
8. To cancel a bar hole measurement or fresh air purge that is in progress, press and
release the DISPLAY ADJUST NO button.
9.
To exit Bar Hole Mode and return to the Mode Select Screen at any time, press and
hold the RANGE
▼
SHIFT button for 5 seconds.
BAR HOLE MODE
E CH4 0 vol%
A OXY 20.9 vol%
K ENTER: MEASURE
ADJUST: PURGE
P
BAR HOLE MODE
CH4 0 vol%
OXY 20.9 vol%
FRESH AIR PURGE...
30 SEC
BAR HOLE MODE
CH4 0 vol%
OXY 20.9 vol%
ENTER: MEASURE
ADJUST: PURGE
www.
.com
information@itm.com
1.800.561.8187
