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To display the lowest VOC concentration recorded during
a measurement session, press the MAX/MIN button twice.
The minimum reading will appear on the upper readout,
with the term MIN above it on the top line.
The figure at right
shows both session
parameters in their
selection sequence
relative to real-time measurement mode.
To clear the stored (and continually updated) values of Min
and Max from the instrument's short-term (volatile) memory,
press and hold the HOLD button with the meter operating in
Max/Min mode. The letters Clr on the bottom line of the LCD
will confirm the clearing.
CALIBRATION PROCEDURE
VOC ZERO ADJUSTMENT
To make this temporary calibration procedure worthwhile, be
sure the ambient environment is well-ventilated and shows
no sign of VOC gases, as evidenced by a 0.00 reading on the
meter's upper TVOC ppm readout.
To initiate the process, press and hold the MODE button for at
least five seconds. Initially, five zeroes and the term CAL will
appear and flash for about 20 seconds (left image on next
page). Then the zeroes will stop flashing, with CAL continuing
to flash (middle image). When calibration has finished, the
display will confirm that result by displaying End (right
image). The meter will respond by resuming operation in
real-time measurement mode with the calibration point back
at the factory default setting.
1
Real-
time
session
mode
values
MIN
MAX
session
values
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