Purging The Pump; Purging The Pump; Detecting Liquid Leaks In The Pump; Adjusting The Screen Brightness Or Contrast - Thermo Scientific Dionex UltiMate 3000 Series Operating Instructions Manual

UltiMate 3000 Series:
LPG-3400XRS Pump

5.4.7 Purging the Pump

If you observe pressure pulsation, a high noise level, or pulsation during the operation of the
pump or if the analysis is not reproducible, this may indicate that there are air bubbles in the
system.
In this case, purge the pump as described in section 4.6 (→ page 64).

5.4.8 Detecting Liquid Leaks in the Pump

Leak detection is enabled as a standard when the pump is shipped. When leak detection is
active and the leak sensor reports a leak
• The Status LED on the front panel door is red.
• A message appears in Chromeleon Audit Trail.
The Leak property in Chromeleon is set to Leak.
•
• A beep alerts you.
• The pump stops flow if the leak sensor reports a leak for at least 3 minutes.
When the leak sensor reports a leak,
• Locate the source for the leak, eliminate the cause, and dry the leak sensor (→ page 105).
• You can disable the alarm temporarily.
To do so, open the Commands dialog box for the pump and perform the AlarmOff
command.
This also turns off the beep and allows you to restart the pump flow.
If the leak sensor does not report Leak = NoLeak within 30 minutes after you have
restarted the flow, another leak alarm will be issued and the pump flow will be stopped
again.
You may disable leak detection permanently. (However, it is not recommended to do so.) In
Chromeleon, open the Commands dialog box for the pump and set LeakSensorMode to
Disabled.

5.4.9 Adjusting the Screen Brightness or Contrast

You can adjust the screen brightness or screen contrast to your requirements from
Chromeleon. Open the Commands dialog box for the pump. Change the screen brightness
under Brightness and/or the screen contrast under Contrast.
Page 84 Operating Instructions