Amersham Pharmacia Biotech AKTA P-920, Руководство пользователя

Страница: 29 / 48

5 Trouble-shooting
5.1 General
When contacting Amersham Pharmacia Biotech for support, state
the version number of the module. This is shown for 2 seconds
during start-up. The version and model can also be checked by using
the
Check Service Mode
operating menu.
We recommend you make a pressure recording since much
information can be gained from the pressure trace. See section 5.4
Checking the pump pressure, for more information.
5.2 Faults and actions
If the suggested actions do not correct the fault, call Amersham
Pharmacia Biotech.
Fault Action
Large spillage over/into 1 Unplug the mains inlet cable.
system/module 2 Clean and dry the system/module with a dry cloth or paper.
If necessary, tilt the system/module backwards to drain.
3 Call Amersham Pharmacia Biotech local service for advice.
No text on the front display 1 Check that the mains cable is connected and the power
switch is in ON-position I.
2 Check the mains power supply.
3 Check the mains inlet fuse.
Erratic flow, noisy baseline
signal, irregular pressure trace
Air bubbles passing 1 Check that there is sufficient eluent present in the
through or trapped in the pump reservoirs.
2 Check all connections for leakage.
6-port pump valve
1 Follow the instructions in section
4.8 Cleaning the
not functioning correctly 6-port pump valve.
2 Clean the valve in-place. If improvement is not seen,
call Amersham Pharmacia Biotech for service.
Piston seal leaking 1 Replace the piston seal according to the instructions in
section
4.6 Replacing the piston seal.
WARNING! The module must not be opened by the user.
It contains high voltage circuits that can give a lethal electric
shock.
Pump P-920
User Manual 18-1125-54 Edition AB
23
Trouble-shooting
5
18-1125-54_ab.qxd 1998-10-22 12:49 Sida 23 (1,1)