P 2.1L user manual V6840, version
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Troubleshooting
Test Intervals
To make sure that the device operates within the specified range, you
should test the device regularly. The test intervals are dependent on the
usage of the device.
Execution
The test can be carried out either by the Technical Support of KNAUER or
from a provider authorized by KNAUER.
Troubleshooting
First measures
1. Check all cabling.
2. Check all screw fittings.
3. Check whether air has gotten into the supply lines.
4. Check device for leaks.
5. Pay attention to system messages.
Further Measures
1. Install the maintenance software (service tool).
2. Save device information and send to manufacturer.
Inform the Technical Support of the manufacturer.
LAN
Go through the following steps, in case no connection between the com-
puter and the devices can be established. Check after each step if the prob-
lem is solved. If the problem cannot be located, call the Technical Support.
1. Check the status of the LAN connection in the Windows task bar:
Connected
Connection not established
If no connection was established, test the following:
Is the router switched on?
Is the patch cable connected correctly to the router and the com-
puter?
2. Check the router settings:
Is the router set to DCHP server?
Is the IP address range sufficient for all the connected devices?
3. Check all connections:
Are the patch cable connected to the LAN ports and not the WAN
port?
Are all cable connections between devices and router correct?
Are the cables plugged in tightly?
4. If the router is integrated into a company network, pull out the patch cable from
the WAN port.
Can the devices communicate with the computer, even though the
router is disconnected from the company network?
5. Turn off all devices, router, and computer. Firstly, turn on the router and sec-
ondly turn on the devices and the computer.
Has this been successful?
6. Replace the patch cable to the device with that no connection could be estab-
lished.
Has this been successful?
7. Make sure that the IP port of the device matches the port in the chromatogra-
phy software.
Possible Problems and Rectifications
Error
Solution
Device cannot be
switched on
Inspect the power cable to ensure that it is
plugged into the power supply.
