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Repairing the Pump
Exchanging the Low Pressure Pump Main Board (LPM Board)
print sendmodule$ (lpmp, "ser?") The reply line will give the serial number o f
the quaternary pump.
Replacing the Quaternary Pump’s Firmware
The installation of new firmware is required
•if a new version solves problems of the currently installed version.
•if the version of firmware on the new main board (LPM) after an ex change
of the board is older than the one previously install ed.
To upgrade the quaternary pump’s firmware follow the procedures and
instructions given on the internet @:
http://www.agilent.com/chem
to download and install always the newest available version of firmware on
your system or call your local service provider for assistance.