Explanation Of Control Functions - GF Grafco -3 Manual De Operación

Front Panel Cover
This cover located on the front of the unit conceals the controls for Pulse
Width, Pulse Rate, Mode Selector, and Timer (GF-3T only). Press the top por-
tion of the cover and pull down in order to open the cover.

EXPLANATION OF CONTROL FUNCTIONS

Ch1 / Ch2 Knobs
MODE Selection
Switch
Pulse Width
Control Knob
Pulse Rate
Control Knob
Timer Selection
Switch *
(GF-3T Only)
The Channel 1 and Channel 2 Intensity Control Knobs control the strength
of the stimulation and also function as ON/OFF controls for each channel.
The MODE Selection
Switch sets the
treatment mode.
The three modes
are Burst (B),
Continuous (C), and
Modulation (M).
The Pulse Width Control Knob regulates the pulse width for both channels.
The Pulse Rate Control Knob regulates the number of pulses per second for
both channels.
The Timer Selection Switch selects the duration of TENS treatment. The three
Timer selections are Continuous (C), 30 minutes (30), and 60 minutes (60).
* To resume operation or reset the Timer, turn the Intensity Control
Knob OFF and then ON.
Burst Mode (B) releases individual bursts twice
per second, pulse width is adjustable, and the
pulse rate is set at 100 Hz per second.
Continuous Mode (C) delivers stimulation
continuously at the settings determined by the
intensity, width, and rate knobs.
Modulation Mode (M) decreases the pulse width
to 60% of the original setting; this decreased
pulse width is maintained for 1.5 seconds before
returning to the original pulse width setting,
which is maintained for 3.5 seconds. The cycle is
then repeated. The intensity and pulse rate are
adjustable.
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