Sys*Stim 294 Instruction Manual—
Rev.F_09/13/17
37
Section 8—Specifications
8.1 General Specifications:
Input:
90–240 VAC, 50–60 Hz, 2.3 Amp Nom.
Weight: 9.4
pounds
Dimensions:
5 in (H) x 14.5 in (W) x 10 in (D)
Operating Temperature:
+50°F to +104°F
Humidity:
Operating, 30% to 75% Relative Humidity at 104
F
Nonoperating, 5 to 95% Relative Humidity, non-
condensing
Storage Temperature:
-40°F to 167°F
Timer Accuracy:
±30 seconds
Maximum Treatment Time:
60 minutes–electrical stimulation
Treatment Timer:
Treatment time counts down to zero when a time is set,
or up to 60 minutes
when no time is set. The digital
timer indicates time in minutes and seconds. The timer
also indicates the remaining or elapsed treatment time
during the “Hold” period.
8.2 Waveform Specifications:
Interferential Mode
Figure 8.1—Interferential
Waveform
Waveform Type:
Sinewave
Polarity:
None
Volts:
0–65 volts RMS, 1 Kohm load
Current:
0–65 mA RMS, 1 Kohm load
Average current at
maximum intensity
and frequency:
65 mA RMS
Maximum current
density under 2"
diameter electrode.
3.2 mA/cm²
Frequency:
Channel 1 = 4000 Hz
Channel 2 = 4000 to 4250
Hz variable frequency sine
wave
Frequency Modulation:
1–15 Hz
80–150
Hz
1–150
Hz
xx–xx
Hz,
xx=any value from
1 to 250 Hz
