Operator's Manual
DS7A - Constant Current Stimulator
Setting up the EMG system
All EMG systems are different but some settings will be good starting places.
Amplifier sensitivity:
~50
µ
V / division
No. of Sweeps:
1
Artefact rejection:
OFF
Stimulus Repetition Rate:
0.5 Hz (every 2 sec.) or EXTERNAL
Artefact Rejection
Most EMG systems have a method to disable or enable different levels of Artefact rejection. Precise
methods will vary with manufacturer and model.
Depending on the particular set-up used, the DS7A can often produce large amplitude stimulus artefacts.
These can produce a “reject” of the recorded sweep.
If this is the case the Artefact Rejection should either be turned-off (disabled) or set to ignore the large
transients (stimulus artefacts) in the first part of the sweep.
Digitimer Ltd.
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Copyright © 2014
File Ref: N:\Docs\Company\Manuals\DS7A\Issue-14\DS7A-iss14.odt
Last Revised: February 1, 2017
