Hitachi PRIMAIDE 1440 Instruction Manual page 17

SAFETY SUMMARY
WARNING precautions in the Manual (Continued)
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
650-1500
890-2019
[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.
•
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.
[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.
WARNING
Part Name
150 W xenon lamp
Long-life xenon lamp
SAFETY - 5
Useful Lifetime
500 hours
1,000 hours