Instruction manual

8. Maintenance
8-30
RF-20A/20Axs
8.4 Inspecting/Replacing the Xenon
Lamp
!WARNING
• When handling a Xenon lamp, always wear the following protective gear: a protective mask, a
thick long-sleeved shirt, and safety gloves.
Gas at high pressure is enclosed in the Xenon lamp. If the lamp is subjected to a strong impact or the
glass part is damaged, it may explode, scattering fragments.
Use a protective mask that is able to cover the entire face with rigid plastic or similar material.
• When handling a Xenon lamp, do not touch the glass part with bare hands.
If the Xenon lamp is lit while there are fingerprints on the glass part they will burn, and this may cause
the lamp to explode.
If you happen to touch the glass part with your bare hands, wipe the fingerprints off e.g. with a piece of
gauze moistened with ethanol.
• Always turn the power to the instrument OFF and unplug the power plug before replacing a
Xenon lamp.
A high voltage of around 30 kV is applied to the positive (+) terminal of the Xenon lamp at the start of
ignition, and this is extremely dangerous.
• Make sure that the Xenon lamp has cooled sufficiently before attempting to replace it.
Immediately after being turned OFF the Xenon lamp is extremely hot and could burn you.
The time required for the Xenon lamp to cool is at least 90 minutes after the power to the instrument has
been turned OFF, or at least 30 minutes after the lamp has been turned OFF by setting [0] (OFF) for
[LAMP] in the parameter settings group.
!CAUTION
• When the cumulative operating time of the Xenon lamp has exceeded 2000 hours, replace it.
If the Xenon lamp continues to be used beyond its service life (2000 hours), it may explode. If the
Xenon lamp explodes, it could damage the instrument.