Lamp Replacement - Gilson VERITY 1741 User Manual

Lamp Replacement

It is recommended to replace both the deuterium lamp and tungsten lamp at the same time.
When replacing the lamps, replace both lamps first and then calibrate the lamp intensity.
NOTE
If replacing ONLY the tungsten lamp, then do NOT perform the lamp intensity calibration.
Deuterium Lamp Replacement
CAUTION
OVerVIeW
1. Switch off the detector and disconnect it from the mains.
2. Remove the deuterium lamp and install a new one.
3. connect the detector to the mains and switch it on.
4. check that the new lamp is ignited correctly.
5. Use the front panel control to reset the lamp hours. Refer to Service on page 52 for additional
details.
INStrUCtIONS
1. Disconnect the detector from the
power source.
2. Unscrew the four screws and then
remove the small cover on the side
of the detector.
3. Unscrew the four screws on the
front of the detector and then
remove the cover.
4. Disconnect connectors from the
compartment under the lamp
socket. Pass the front of the
connector into the front of the
detector.
NOTICE
24
MaInTEnancE
This operation may be performed only by a qualified person. Before replacing a lamp, always
unplug the detector from power source by disconnecting main supply cable. Reconnect the
detector to the power source only after the cover is mounted back in place.
UV light is dangerous for your eyes. If the flow cell is installed in the detector, then the UV
light is shielded. When performing flow cell maintenance, it is very important to protect your
eyes with glasses that absorb UV light. In case of any service requiring dismantling of any part
covering optical unit and when the lamp is on, it is necessary to protect your eyes with glasses
that absorb UV light.
Never touch the quartz bulb with bare fingers because fingerprints will irreversibly damage
the lamp after being switched on.
Clean any dust with air duster.
Avoid placing lamp cables into the fans space.
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VERITY® 1741 UV-VIS DETEcToR