June 11, 2015, 715004752 Rev. A
Page 105
The detector’s on-board diagnostic tests allow the recording of lamp usage and
reporting of the lamp serial number.
4.5.2.1
When to replace the lamp
Requirement:
Always run the Change Lamp diagnostic test after you install a new
lamp (see
Replace the lamp when
•
it fails to ignite at startup;
•
its energy level causes a decrease in sensitivity to the point where the baseline
is too noisy for your LC application.
Rule:
Always run the procedure in
“Recording sample and reference beam energies”
when you change the detector lamp.
Waters warrants the lamp to ignite and pass startup diagnostic tests for 2000 hours or
one year from the date of purchase, whichever comes first.
4.5.3 Removing the lamp
To remove the lamp:
1. Extinguish the lamp using the keypad by pressing <Shift> <Lamp> and then
pressing <Shift> <Lamp> again.
Tip:
Using the keypad to extinguish the lamp allows the lamp to cool faster
because of the operation of the instrument’s cooling fan. To power-off the lamp
using a timed event, see the instructions in the Empower or MassLynx online
Help.
2. Power-off the detector, and disconnect the power cord.
3. After extinguishing the lamp, allow it to cool for at least 30 minutes.
4. Open the front door.
5. Disconnect power to the lamp and disconnect the cord.
Warning:
The lamp housing gets extremely hot during operation. To prevent
burn injuries,
• allow the lamp to cool for 30 minutes before removing it;
• keep the lamp in the housing when handling the lamp.
Warning:
To avoid eye injury from ultraviolet radiation exposure,
• power-off the detector before changing the lamp;
• wear eye protection that filters ultraviolet light;
• keep the lamp in the housing during operation.
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