Hitachi CHROMASTER 5160, Instruction Manual

Page: 428 / 1022

SAFETY - 5
SAFETY SUMMARY
WARNING precautions in the Manual(Continued)
WARNING
Injury due to Xenon Lamp Explosion
[In use]
•
When the cumulative turn-on time of the xenon lamp exceeds the guaranteed useful
lifetime, the electrodes evaporate and the scattered matter sticks to the bulb wall, so
its blackening progresses and heat dissipation is hindered. As a result, the internal
bulb temperature (pressure) will rise abnormally to cause a danger of burst, etc.
Replace the xenon lamp with a new one before its cumulative turn-on time exceeds
the guaranteed useful lifetime.
P/N Part Name Useful Lifetime
650-1500 150 W xenon lamp 500 hours
890-2019 Long-life xenon lamp 1,000 hours
(Section 3.5)
[At replacement]
•
Before removing the xenon lamp for replacement, turn off the xenon lamp (turn off
power to the instrument) and then wait for at least one hour until the xenon lamp
becomes sufficiently cool to reduce its internal pressure the normal safety level.
(Section 5.2)
•
If a strong shock or impact is applied to the xenon lamp or if the surface of its quartz
glass part is scratched, it may explode and scatter glass pieces, resulting in personal
injury. Be sure to wear proper protective gear such as safety goggles, safety mask,
thick long sleeves, and gloves when handling the xenon lamp.
(Section 5.2)
[At mounting]
•
When loosening or tightening the retaining nut for the xenon lamp, be careful not to
apply excessive force to its glass bulb part. Never hold and turn the glass bulb part
for loosening/tightening.
(Section 5.2)