ASM 2.1L user manual V6815
23
Troubleshooting
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
problem 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 secondly 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
established.
Has this been successful?
7. Make sure that the IP port of the device matches the port in the chro-
matography software.
Possible problems and solutions
Problem
Solution
Assistant
Device will not turn on.
Inspect the power cable to ensure that it is
plugged into the power supply.
Detector
Baseline drift
Maintain constant temperature condi-
tions during the measurement.
Avoid air draft.
Avoid vibrations.
Device cannot be cali-
brated.
1. Fasten the knurled-head screws on the
flow cell to prevent incursion from inter-
fering light or an electronics error.
2. Insert the test cell.
3. Inspect the calibration with a weak
absorbing eluent.
