Interferential Stimulator (IF-908)


The interferential stimulator (IF) device is a battery operated device that includes two controllable output channels. Amplitude, mode and duration of the electrical impulses can be altered with the buttons or knobs. The controls are protected by a cover in order to prevent accidental changes to the settings. Slide the cover down to make adjustments to the controls.

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Channel Dual, isolated between channels
Dimensions 107x62x27mm
Weight Approximately 150 grams, battery included
Amplitude Adjustable 0-60mA peak into 500 ohm load each channel,constant current
Carrier Frequency 4000Hz, Fixed (CH1)
Modulating Frequency 4-160bps, Adjustable (CH2)
IF Frequency Modes 9 modes, 1 constant mode, 5 frequency shift modes, 3 auto sweep Modes
Constant Mode 4-160bps, Adjustable
Auto Sweep 4-45 bps
80-145 bps
4-SET bps
Frequency Shift Five modes,
1/1 abrupt shift
6/6 abrupt shift
6/6 ramped
10/10 abrupt shift
10/10 ramped
bps adjustable
Sweep Time 15 seconds
Frequency Shift Percent Frequency shifts from 30% below the set frequency to 60% above and then return to 30% below the set frequency.
Output Configuration Quad polar (4 electrodes)
Wave form Symmetrical Balanced Sine Wave
Pulse Frequency
4-160 bps, Adjustable, 4 bps/step
Pulse Duration 125 µs maximum
Patient Compliance Meter Display total treatment time
Lock Prevents the patient from accidentally changing any of the set parameters
Timer 15, 30 minute selectable
LCD Displays mode, bps rate, abrupt/ramp, timer, and channels
Max charge per Pulse 15 Micro-coulombs Maximum
Low Battery A low battery indicator will show when the battery is low.
Power Source 9 Volt DC adapter, 500mA or 9 volt alkaline battery (not recommend due its short life)
Tolerance There may be +/-10% tolerance of settings and 20% tolerance of output.


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