Bacharach PCA 2 24-9448 - Manual (Page 16)

Instruction 24-9448 1-10
Introduction
Selects a hghlghted menu. In addton, f changes were
made to one of the analyzer’s operatng parameters (e.g.,
date, tme, O
2
reference, etc.), pressng ths button con-
frms those changes and saves them n memory.
Starts and stops a combuston test when the Combus-
ton Test screen s dsplayed. Pressng ths button n any
other screen returns the analyzer to the Combuston Test
HOLD screen. Pressng ths button durng the 5 second
turn-off-delay perod wll abort the turn-off process and
also return the analyzer to the Combuston Test HOLD
screen.
Dsplays a prevously vewed screen. In addton, f
changes were made to one of the analyzer’s operatng
parameters (e.g., date, tme, O
2
reference, etc.), pressng
ths button aborts those changes, restores the old values,
and then dsplays the prevously vewed screen.
Turns the analyzer ON and OFF, and s also used to
turn the backlght and button LEDs ON and OFF.
Note that when the analyzer s turned OFF, there s a
5 second delay, durng whch tme an operator can keep
the analyzer turned ON by pressng the RUN / HOLD
button. Also note that f the measured emsson levels
are above predetermned lmts at the tme the nstru-
ment s turned OFF, the pump s automatcally started
and purges the sensor compartment wth fresh ar untl
the gas levels nsde the analyzer are reduced. If desred,
the purgng process can be aborted by agan pressng the
I/O button.