Problems
If “noise” is seen superimposed on the waveform, then check the
following:
1)
Have you sited the electrodes correctly? Check that the elec-
trodes are not sited on excessive fat. Check that they
are not sited over large muscles, otherwise, EMG will also be
displayed.
2)
Check the earth or reference electrode.
3)
Check that the correct leads are attached to the correct elec-
trode and correct socket on the Isolated Preamplifier.
4)
If the Isolated Preamplifier is sited close to a main power lead,
then move one or the other or preferably both as far apart as
possible.
Service Information
Fitting or Replacing Batteries
The type of batteries required are 9 volt, size PP3 (IEC designation
6LR61) of the alkaline type.
Locate the battery holders on the back panel of the amplifier (see
Fig. 7 below). Lift the plastic covers. Remove spent batteries and
connect new batteries to the connectors inside. Place the batteries
inside the holders and close the lids.
12
Figure 7
Lift here to gain
access to battery
