To test your headstage and amplifier, they will need to be configured in a way that neutralizes any outside noise. The test configuration settings are as follows:
- Set High Pass to 300
- Set Notch to ON
- Set Low Pass to 3
- Turn Capacity Compensation completely counter-clockwise
- Switch the DC OFFSET switch to OFF.
- Set Gain to 50
- Set Input MODE to REC
- Set Ohm Test to OFF
- on the headstage, link (short) the '+' input to the '-' input
In LabChart, set the range to an appropriate level, the sampling rate to 20,000 samples per second, and record a few blocks of data. Alternate recording data blocks with LabChart's Mains Filter "off" and "on" to compare. Very Low noise with the mains filter "off" is ideal. Low noise with the mains filter "on" is still usable. High noise with mains filter "on" may indicate a headstage or amplifier failure.
For further technical assistance with this or any other issue, please contact ADInstruments Technical Support by clicking HERE..