AZURA® Assistant ASM 2.2L Instructions V6803
40
Maintenance and care
System message
Solution
P
Pump: external error
detected
Localize external error and remove it
Replace the motor.
Replace the mainboard.
Pump: max. current
detected
Replace the motor.
Replace the mainboard.
Pump: max. pressure
detected
System pressure is too high.
Remove the blockage
Check the contacts at the motor
Replace the motor.
Pump: min. motor current
detected
Replace the motor.
Check the motor contacts.
Pump: min. pressure
detected
Localize leakage in the system and remove
it
V
Valves have different
types in 'column switch'
mode
Correct the settings. Both valves have to be
of the same type
12. Maintenance and care
Proper maintenance of your HPLC device will ensure successful analyses
and reproducible results. In this chapter, you find the information relevant
for maintenance, care and storage. Additionally, you find instructions for
maintenance tasks that may be performed by the customer. In case there
are any maintenance tasks on that you do not find instructions here,
contact your supplier or the technical support.
Further information can be found in the operating instructions of the
individual device modules (see 'Device overview' on p. 13).
Note:
All wetted components of a device, e. g. flow cells of detectors,
have to be flushed with isopropanol first and water second before being
maintained, disassembled or disposed.
12.1 Maintenance contract
The following maintenance work on the device may only be performed by
KNAUER or a company authorized by KNAUER and is covered by a sepa-
rate maintenance contract:
Opening the device.
Removing the hood or the side panels.