C
ARE AND
M
AINTENANCE
Page
74
Electronic Copy of LTI’s Impulse User’s Manual 8
th
Edition © October 1998
for a complete drawing of all display
While you are holding the fire button, you can also
display the Impulse instrument version number by
pressing any other button.
Checking the Batteries
You can check the battery voltage level by scrolling
to the SYS - BATT option. The numeric display
area shows the current voltage reading of the
batteries.
Should the batteries run low during measurement
operations, the BATT indicator blinks. If you
continue operations, and the batteries run down
further, a Lob message displays on the screen.
If you fail to change the batteries at that point, the
keys will lock out.
Realigning the Scope
The scope may become misaligned by a heavy
blow to the instrument. Periodically follow the
procedure in the table below to verify that the laser
beam is hitting its target and to correct it, if
necessary. The point of the procedure is to align
the laser’s point of impact with the scope’s aiming
dot or crosshair, using sound to indicate when the
scope is on target.
To align the scope properly, you need:
•
A flat-head screwdriver
to turn the scope
adjustment screws.
•
A target
at which to aim the instrument.
