Model 106-L Ozone Monitor Manual Rev. E
23
Analog output is
constant or does not
track front display.
Cable not properly
connected between
analog output and
recording device.
Wrong scaling factor
selected in menu.
Check continuity of your
analog cable to your
recording device and
make sure correct
connector pins are being
used.
Check and reset analog
output scaling factor in
the Menu.
Select switch does not
work.
Bad solder joint to circuit
board or damaged select
switch.
Remove top cover and
check solder connection
to select switch. It may
be necessary to replace
the select switch.
Serial port does not
work.
Wrong serial cable used.
Wrong baud rate
selected.
A “straight through”
serial cable is provided.
Some data collection
devices require a ”cross
over” cable in which pins
1 and 3 are exchanged
between the two ends of
the cable. Use a “cross
over” cable or additional
connector that switches
pins 1 and 3.
Make sure that the baud
rate chosen in the menu
matches the baud rate
setting of your data
acquisition program.
Required calibration
parameters are large
(>
9 ppb offset and/or
>
9% slope) when
calibrated using a
Ozone scrubber is
contaminated.
Replace ozone scrubber.
Be sure to use an inlet
filter to remove
particulate matter.
