Starting A New Or Continuing Twa/Twa; Peak Reading Operation; Leak Detector Operation; Standby Mode - Bacharach PGM-IR Operation And Maintenance

Operation

2.4.2 Starting a New or Continuing TWA/twa

When the monitor is turned ON the following message appears if the monitor
is set up to display TWA/twa.
Press either . . .
•
ENTER to start a new TWA/twa
•
ESC to continue with the current TWA/twa.
Tip: If NO button is pressed within 60 seconds the monitor automatically continues with
the current TWA/twa.
NOTE: During the time the monitor is OFF, the gas measurement is assumed to be zero and will be
factored into the TWA/twa calculation.
After selecting whether to start or continue a TWA/twa, the next screen shows
the current elapsed TWA/twa time, where:
xx is the accumulated time used by the monitor in calculating the TWA/twa.

2.5 Peak Reading Operation

In addition to displaying the current CO
to display its peak ppm measurement. The peak reading display is selected
by using the 2ndUNIT function.
The display above shows that currently the monitor is detecting 50 ppm CO
70 ppm has occurred. The peak reading is reset by pressing the ENTER button.

2.6 Leak Detector Operation

The monitor can be configured to operate as a Leak Detector by setting the AUDALRM function (page 11) to LEAK
DETECTOR.
When configured as a Leak Detector, the monitor will produce a leak detector type of audible feedback. At zero
ppm there will be an audible beep every 2 seconds with the beep rate increasing up to 20 beeps/second when the
ppm level reaches the ALRMLVL setting.

2.7 Standby Mode

After becoming operational, the monitor can be placed into a Standby Mode. When taken out of standby the
monitor is ready for operation without waiting an additional 5 minutes to warm up. While in standby the monitor
will stop taking gas samples and stops purging itself from the purge-air bag.
Place the monitor into its Standby Mode by pressing both the ENTER and ESC
buttons at the same time. Take the monitor out of standby by again pressing
both the ENTER and ESC buttons.
8
level, the monitor can also be set up
2
CO
2
and that a peak measurement of
2
Instruction 3015-9000 Rev 2
Monitor