ASM 2.1L user manual V6815
27
Maintenance and care
Maintenance and care
Proper maintenance of your HPLC device will ensure successful analyses
and reproducible results. Please check the user manuals of the micro
devices to find all information on maintenance (see “Device overview” on
page 5).
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.
Required system information
Serial number
The serial number can be found with the Mobile Control (
GLP
device
) as
well as on the rear side of the device.
Year of manufacture
The year of manufacture forms part of the serial number of the module,
example: CDA103252525. The letters designate the device type; the year
of manufacture is stated as year and calendar week. In the example, the
module was manufactured in calendar week 32 of the year 2010. The last
five digits are the identification number for the interface card (
Interface:
Serial number
).
Cleaning and caring for the device
Device defect
Intruding liquids can cause damage to the device.
Place solvent bottles next to the device or in a solvent tray.
Moisten the cleaning cloth only slightly.
All smooth surfaces of the device can be cleaned with a mild, commer-
cially available cleaning solution, or with isopropanol.
Maintenance tasks for users
The following maintenance tasks are recommended by KNAUER and may
be performed by the user. The procedures are described in the according
user manuals.
V
Valves have different
types in 'column switch'
mode
Correct the settings. Both valves have to be
of the same type
Valve left: failure
detected!
Left valve is stiff.
Drive is defective.
Valve middle: failure
detected!
Middle valve is stiff
Drive is defective.
Valve right: failure
detected!
Right valve is stiff
Drive is defective.
W
Wrong valve type
Correct the settings.
System message
Solution