6. MAINTENANCE
6 . 2 Lamp Replacement and Adjustment
WARNING! This must be done with the power switched off.
PROFILE
To change the lamp first flip open the lamp house cover. Remove the bulb
by grasping and pulling the bulb directly up. Remove the new replacement
bulb from its box, and slide the new bulb in place.
Switch main power on remove the objective lens, and set lamp intensity to
low. Verify that the lamp filament projected on the screen is centered over
the crosshairs. Re-seat lamp and or adjust holder if required.
If the glass lamp is accidentally marked, remove the
marks immediately by swabbing with methanol. The
lamp operates at a high temperature and any finger
marks will be “fired” into the surface of the quartz
reducing the output and life of the lamp.
The lamp operates at a high temperature and any
finger marks will be “fired” into the surface of the
quartz reducing the output and life of the lamp.
Lamps are available in packs of 5
from Dorsey Metrology International or our representatives.
