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5 Maintenance
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23
5.2.4
Replacing the lamp
Replace the lamp once it is blown or when its performance is insufficient.
Signs of insufficient lamp performance include:
￭
Noise impairs the measurements.
￭
The repeatability of the wavelengths deteriorates.
￭
The performance test is no longer completed successfully.
Removing the lamp
Accessories
￭
Screwdriver
WARNING
Electric shock from electrical potential
Risk of injury by touching live components or through moisture on live
parts.
￭
Never open the housing of the instrument while the power cord is
still connected.
￭
Protect live parts (e.g. power supply unit, power cord, connection
sockets) against moisture.
￭
Unplug the power plug immediately if you suspect that moisture has
gotten inside the instrument.
￭
Only personnel who have been issued Metrohm qualifications may
perform service and repair work on electrical and electronic parts.
WARNING
Hot surface
Danger of burning due to hot lamp. The lamp is extremely hot immedi-
ately after operation.
￭
Allow the lamp to cool down for approx. 10 to 15 minutes.
￭
Remove the lamp carefully.
NOTICE
Clean the instrument before replacing the lamp. This prevents dust from
damaging the lamp's reflector.
