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Activeforever Mettler Sys*Stim 294 4-Channel Neuromuscular Stimulator User Manual

Page 4

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4

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