Multichannel Systems MEA1060-Up Manual - Manual (Page 19)

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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 / 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 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.
MEA electrode is defective
See also the MEA Manual.
Possible causes:
? The contact pads are contaminated.
 Clean the contact pads carefully with a swab and pure (100 %) alcohol.
? The contact pads or the electrodes are damaged.
 Use a new MEA. Try to handle and clean the MEA more carefully next time.