Bacharach PCA 3 Manual De Propietario
PCA
3 Manual
0024-9472 Rev 2
61
5.17. Turning Off the Analyzer and Purging
Turn OFF the analyzer by pressing the
I/O
button for at least 2
seconds, or until
two beeps are heard. The unit will count down 5
seconds before shutting down,
giving the operator an opportunity to keep the analyzer turned ON by pressing
the
the
RUN/HOLD
button.
If the PCA
®
3 was not purged with fresh air (as described in Ending a Combustion
Test on page 49), then the analyzer may remain ON with its pump running and
display the message “PURGING SENSORS” as the result of combustion gases
still being present inside the analyzer. At this time the operator should ensure
that the probe is removed from the stack, allowing the analyzer to purge itself
with fresh air. The 5-second shutdown sequence will not begin until the gas
levels inside the analyzer drop below predetermined levels.
display the message “PURGING SENSORS” as the result of combustion gases
still being present inside the analyzer. At this time the operator should ensure
that the probe is removed from the stack, allowing the analyzer to purge itself
with fresh air. The 5-second shutdown sequence will not begin until the gas
levels inside the analyzer drop below predetermined levels.
NOTE: Although not recommended, the purging process can be
bypassed by pressing the I/O button a second time.
bypassed by pressing the I/O button a second time.