User Manual

4-7
General Description
LED Functionality Difference Due to Dual Pass mode
The functionality of the LED differs slightly from the states described in the
above table when the Dual Pass mode of operation is selected. The differ-
ence lies in the LED state when the companion Laser Heads laser beam is
on the PSD. In Dual Pass mode, when the laser beam is on or off of the PSD
the LED will be a solid yellow, EVEN WHEN THE BEAM IS IN THE
LINEAR PORTION OF THE PSD. The beam will then flash to green
whenever a valid data point is acquired. This deviation is necessary to allow
for the indication to the user that the Laser Heads are acquiring data as they
are rotated past each other.
Note
To determine the actual error, press the Options key, then
Laser Head Status (on the UltraSpec analyzer). This will acti-
vate the Laser Heads Status screen (next graphic). If an error
condition actually exists, its type will be shown in a popup
window within 60 seconds. Refer to “Laser Head Status
Screen” on page 3-8 for more information.