Waters 2489, Обзор и руководство по обслуживанию

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June 11, 2015, 715004752 Rev. A
Page 92
Result:
The absorbance screen appears with the message “Igniting.” The lamp
can take as much as 1 minute to illuminate. Once the lamp illuminates, the
display returns to the absorbance screen, and the X is removed from the lamp
icon.
You can conserve lamp life by programatically igniting and extinguishing it: for
example, overnight, using a timed event method.
To ignite or extinguish the lamp programatically, select the Timed events option in the
Method choice list, or program the lamp through one of the external contact closures.
• See “Programming timed events, threshold events, and methods” on page 72 ,
and the table on page 72 for more information on programming the lamp to
turn on or off using a timed event.
• See “Configuring event inputs (contact closures)” on page 64 for more
information on programming the lamp through the external contact closure.
3.3.10 Shutting down the detector
If you need to power-off the detector for an extended length of time, you must
remove any buffered mobile phase from the fluid path.
To remove mobile phase from the fluid path of the detector:
1. Replace the buffered mobile phase with 100% HPLC-quality water, and flush the
system for 10 minutes at 3 mL/min.
2. Replace the 100% water mobile phase with a solution of 90:10 methanol/water,
and flush the system for 10 minutes at 3 mL/min.
Follow the recommended procedures for injector purging and priming for the pump in
use with your HPLC.
To shut down the detector:
Press the On/Off switch.
Notice:
To avoid damage to the column, remove it before you perform the
following procedure. Before you remove the column, see your column care and
use guide.