Gas Tracer Operator’s Manual, CSA Version
Bar Hole Testing • 95
7. If a high concentration of methane is encountered, a fresh air purge can be
performed to purge the hose, probe and Gas Tracer 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 (ADJ) button. The display will now
indicate PURGE along the bottom of the screen and the purge time will
begin counting down from 30 seconds in the lower right corner of the
display. If you wish to cancel the purge, press and release the RESET
SILENCE button.
•
When the purge is complete, the screen will return to the initial Bar Hole
Mode screen.
8. If other bar holes will be tested, proceed to the next bar hole and repeat steps
9. To cancel a bar hole measurement or fresh air purge that is in progress, press
and release the RESET SILENCE button.
10. To exit Bar Hole Mode and return to the Mode Select Screen at any time, press
and hold the (SHIFT)
▼
button for 5 seconds.
Turning Off the Gas Tracer, Bar Hole Mode
1. Press and hold the POWER ENTER button.
2. The unit will initiate a bar hole measurement. Keep holding the POWER
ENTER button. The buzzer will pulse for about three seconds and TURN OFF
will appear at the bottom of the screen.
3. Release the button when TURN OFF disappears.
0
20.9
30
vol%
%
BAR HOLE MODE
sec
CH
4
O
2
PURGE
0
20.9
%LEL
%
BAR HOLE MODE
CH
4
O
2
001
