Diagnostic Mode
The detector levels, Analogue to Digital (A-D) levels, receiver gain, calibration
and opacity data may be examined from this mode. Press the MODE key until
number 4 appears in the top left corner of the display, and push the ENTER key
to enter the mode.
The ARROW keys will now select from the following, press the ENTER key to
select the displayed option. Error! Reference source not found. illustrates a
program tree for this mode.