Bacharach PCA 2 24-9448 - Manual (Page 44)

Instruction 24-9448 4-10
Operation
4.10 Turning OFF the Analyzer & Purging
Turn OFF the analyzer by pressng the I/O but-
ton for at least 2 seconds, or untl two beeps are
heard. The unt wll count down 5 seconds before
shuttng down, gvng the operator an opportu-
nty to keep the analyzer turned ON by pressng
the RUN/HOLD button.
If the PCA 2 was not purged wth fresh ar as
descrbed n Secton 4.8, then the analyzer may
reman ON wth ts pump runnng and dsplay
the message “PURGING SENSORS” as the re-
sult of combuston gases stll beng present nsde
the analyzer. At ths tme the operator should
ensure that the probe s removed from the stack,
allowng the analyzer to purge tself wth fresh
ar. The 5-second-shutdown sequence wll not
begn untl the gas levels nsde the analyzer drop
below predetermned levels:
TIP: Although not recommended, the purg-
ing process can be bypassed by pressing the I/O button a
second time.
4.11 Low Battery Alarm
When the batteres are nearly depleted, an empty battery con appears n
the upper-rght corner of the dsplay, and a short beep s sounded every
10 seconds.
After a low battery alarm occurs, the analyzer
wll contnue to operate for only a few mnutes.
The amount of operatng tme that remans de-
pends on many factors (e.g., pump and backlght
beng ON or OFF, and the type and condton of
the batteres).
RUN NATURAL GAS
O
2
4.0 %
CO 12 ppm
EFF 82.6 %
CO
2
9.5 %
T-STK 374 °F
T-AIR 68.0 °F
EA
21.3 %
CO(3) 13 ppm
PRINT MENU SAVE
F1 F2 F3
Low Battery Alarm
Empty Battery Icon
MENU
SHUTDOWN IN 5 sec
MENU
PURGING SENSORS