Carbon Rubber Electrodes
It is recommended that water soaked sponges always be used between the electrode and the tissue to ensure
uniform contact and even disbursement of the current over the entire surface area of the electrode.
If water only is used as a conductive agent (no sponge), pooling may occur with resulting dry spots under
the electrode. The current then will become intensied at the site of the best conduction, the water pools,
with little or no current ow elsewhere. Conductive gels may be used, however, they tend to create a glaze
over the electrode surface after long term use which may interfere with current ow. Cleaning with a mild
soap and water with a soft brush will remove the glaze. It is not a good practice to use conductive mist
sprays as they will not ensure a uniform contact between electrode and tissue and most sprays contain a
saline solution which will destroy the carbon and render the electrode useless.
High Resistance Indicator
The LSI System II is designed to indicate when excessive resistance (high ohms reading) is present.
This is normally due to using sponges which are only damp rather than wet or using an electrode which
is conducting poorly. If, while increasing the intensity by pressing the up arrow, the output stops at a reading
of less than 60mA and the readout begins to ash off and on, you have encountered resistance too high
for normal operation of the unit. While the output is ashing, the Frequency LEDs will indicate the actual
resistance in ohms. If this occurs, check for dry sponges, too little pressure on the sponge and electrode or
defective electrodes and/or lead wires.
Troubleshooting
Unit goes into fail mode (MAs blinking -00-, 1. Check electrodes and leadwires.
Alarm sounding 2. Electrodes must be attached to the patient in order
for the MAs to increase.
Unable to increase intensity 1. Check programming procedure by viewing training
tape and reviewing Owner’s Manual.
2. Vector light must be off in order to increase intensity.
No power to unit (no lights, no sound) 1. Check to see if cord is plugged securely into the
wall and the back of the unit.
Unit is “locked up” and cannot be programmed 1. Unit is malfunctioning and needs to be returned to
or unit shuts down during treatment. LSI for repair.
Unit will not go into Start mode when START 1. Check to see if there is time entered in the
button is pressed. TIMER LED.
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