Activeforever Mettler Sys*Stim 294 4-Channel Neuromuscular Stimulator User Manual
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Biphasic (TNS) Mode
Figure 3.11—Biphasic (TNS)
Waveform
Waveform Type:
Symmetrical biphasic square
wave
Polarity: None
Volts:
99 volts peak, 1 Kohm load
Current: 0
–99
mA
peak,
1 Kohm load
Average current at
maximum intensity
and frequency:
7.2 mA
Maximum current
density under 2"
diameter electrode.
0.36 mA/cm²
Frequency:
1–120
HzzHz
Frequency Modulation:
No
Phase Duration:
50–300
µs
Available Amplitude
Modulation Options:
Continuous
Surge
Reciprocation
Available Channels:
All
High Volt Mode
75 us
0 volts
500 volts
50 %
8 us
Figure 3.12—High Volt
Waveform
Waveform Type:
Monophasic twin peak
Polarity: Positive
or
negative
Volts:
500 volts peak, 1 Kohm load
Current:
0–500 mA peak, 1 Kohm load
Average current at
maximum intensity
and frequency:
1.2 mA at 120 pps with
1
Kohm
load
Maximum current
density under 2"
diameter electrode.
0.06 mA/cm²
Frequency:
1–120
HzzHz
Frequency Modulation:
No
Phase Duration:
8
µs at 50% Vmax
Polarity: Positive
or
negative
Available Amplitude
Modulation Options:
Continuous
Surge
Available Channels:
Channel One only