Operating Instructions UVD 170S/340S
17
6.2 Lamp
Important:
Use only the original Dionex deuterium lamp. Using third party parts
may damage the instrument; and the warranty coverage shall become
invalid.
6.2.1 Lamp Removal
•
If the
UVD 170S/340S
is still connected to CHROMELEON
TM
, first terminate
communication using the Disconnect command in CHROMELEON
TM
(
→
CHROMELEON
TM
manual).
•
Switch off power to detector and remove mains connection.
•
Open and remove the side panel (see above). Do not bend the teflon capillary.
•
Wait until lamp has cooled down!
•
Disconnect the lamp by gently pressing either side of the locking plug and pulling out.
•
Undo and remove the two lamp retaining screws (using a 2.5mm Allen-key) and carefully
remove the lamp. The Allen key is contained in the Accessories.
Warning:
During operation, the lamp becomes extremely hot and remains so for
some time after the unit is switched off. Therefore, to avoid possible
injury, always allow sufficient time for lamp cooling before attempting
any maintenance.
6.2.2 Lamp Replacement
•
Insert the new lamp, aligning the notch on its base with the alignment pin of the mounting
and replace the retaining screws.
No
additional alignment is required.
Important:
Avoid touching the glass tube of the lamp.
•
Reconnect cable.
•
Replace the side panel.
•
The detector may now be switched on and communication with CHROMELEON
TM
restored
using the Connect command.
Please note:
A new lamp must be "run in" for at least 24 hours prior to the first
analysis. During this period, there may be strong baseline fluctuations
and increased noise.
