11/04
© MEDC 2004
4. MAINTENANCE
Tube replacement:
After extended periods of use, check the unit for degradation of the xenon
flash tube. This can be seen as a darkening of the tube, which will appear
at the base and gradually progress upwards over time.
The xenon flash tube may be replaced by a competent engineer using the
procedure outlined below:
Warning!
As high voltages are present during normal operation of the
strobe, wait at least 5 minutes after shutting off the power before servicing
the unit.
1. Disconnect the power to the unit
2. Unscrew the 3 off screws holding the lens assembly to the base
enclosure
3. Gently lift the lens assembly away from the base.
4. Remove the 3 off screws and spring washers holding the electronics
assembly in position. Keep the screws and spring washers in a safe
accessible place.
5. Remove the inner fresnel lens by unscrewing the 2 off nuts holding it in
position.
6. Hold the tube by it’s base and remove it from the socket using a
rocking motion. Fit new tube into position ensuring it is correctly seated
in the socket.
7. Replace the internal fresnel lens ensuring the fixing nuts are fully
tightened.
8. Replace the electronics assembly using the 3 off screws and spring
washers, ensuring the retaining strap is correctly positioned such that
it does not come into contact with any electronic components or PCB
tracks
9. Replace the lens assembly onto the base enclosure, and fully tighten
the 3 off captive cover screws. Ensure the o-ring is correctly seated
during re-assembly.
During the working life of the unit, it should require little or no
maintenance. However, if abnormal or unusual environmental conditions
