Multichannel Systems MEA1060-Up-BC Manual - Manual (Page 44)

MEA Amplifier with Blanking Circuit for Upright Microscopes
44
6 Troubleshooting
6.1 About Troubleshooting
The following hints are provided to solve special problems that have been reported by users.
Most problems occur seldom and only under specific circumstances. Please check the mentioned
possible causes carefully when you have any trouble with the product. In most cases, it is only
a minor problem that can be easily avoided or solved.
If the problem persists, please contact your local retailer. The highly qualified staff will be glad to
help you. Please inform your local retailer as well, if other problems that are not mentioned in this
documentation occur, even if you have solved the problem on your own. This helps other users,
and it helps MCS to optimize the instrument and the documentation.
Please pay attention to the safety and service information (chapter "Important Safety Advice"
and "Service and Maintenance" in the manual or help). Multi Channel Systems has put all effort
into making the product fully stable and reliable, but like all high-performance products,
it has to be handled with care.
6.2 Error Messages
MEA_Select error messages are displayed in the box below the port settings. They show up
if the computer fails to connect the MEA amplifier.
Possible causes:
? The wrong serial port is selected in the MEA_Select program. The MEA amplifier is connected
to another port.
 Check to which COM port the MEA amplifier is currently connected and select the appropriate
port in the program.
? The MEA amplifier is not connected properly to the computer.
 Check the cables and all connections. Make sure all connectors fit tightly.
6.3 Noise on Single Electrodes
The noise level on single electrodes is significantly higher than +/- 8 μV.
Possible causes:
? The electrode or the contact pin of the amplifier may be defective. To test this, do the following.
1. Open the amplifier and turn the MEA by 90 degrees.
2. Close the amplifier again and start the recording.
If the same electrode in the MEA layout is affected, the amplifier's contact is not ok. If another
electrode is now affected and the previously affected electrode is ok now, the MEA electrode
is not ok, but the amplifier is fine.
- OR -
Use the test model probe to test the amplifier.