Sys*Stim 294 Specifications
General Specifications:
Input: 90–240 VAC, 50–60 Hz, 2.3 Amp. Nom.
ETL and C-ETL Listed:
Domestic Model
Classification: Protective Class I Equipment
CE model
Enclosed equipment without protection against ingress of
Equipment not suitable for use in the presence of a
Year 2000 Compliant Yes
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:
Storage Temperature: -40°F to 167°F
Model ME 294 (9801427)
Type BF Equipment
water.
flammable anesthetic mixture with air or with nitrogen oxide
4,3 kg
12,7 cm (H) x 36,8 cm (W) x 25,4 cm (D)
+10°C to +40°C
Operating, 30% to 75% Relative Humidity at 104°F (40°C)
Nonoperating, 5 to 95% Relative Humidity, non-condensing
-40°C to 75°C
Storage Humidity: Storage, 30% to 90% Relative Humidity at 40º C, Non-
condensing
Storage Pressure: 700-900 mB
Environmental Disposal: The device contains lead in the form of solder used to
produce electrical contact between components. To avoid
adverse environmental impact, utilize a disposal facility that
performs complete incineration of the device at a temperature
in excess of 1000°C.
The shipping materials are fabricated of cardboard and may
be disposed of with other paper products.
Treatment timer:
Timer Accuracy: ±0.5 minutes for times less than 5 minutes
±10% for times from 5 to 10 minutes
±1.0 minute for times greater that 10 minutes
±5%, CE specification
Maximum Treatment Time: 60 minutes–electrical stimulation
1
Treatment Timer: Treatment time counts down to zero when a time is set, or up
to 60 or 30 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.
Waveform Specifications:
Interferential Mode
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
Figure 3.8—
Interferential Waveform
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
Phase Duration: 125 µs
Available Amplitude
Modulation Options: Vector rotation
Premodulated Mode
Figure 3.9—Premodulated
Waveform
2
Available Channels: Channel pairs 1 & 2 or 3 &4
Waveform Type: Amplitude modulated
sine wave
Polarity: None
Volts: 0–50 volts RMS, 1 Kohm load
Current: 0–50 mA RMS, 1 Kohm load
Average current at
maximum intensity
and frequency: 50 mA RMS
Maximum current
density under
2" diameter electrode: 2.5 mA/cm²
Medium Frequency Mode
Figure 3.10—Medium
Frequency (Russian)
Waveform
Frequency: 4,000 Hz
Frequency Modulation: 1–15 Hz
80–150 Hz
1–150 Hz
xx–xx Hz,
xx=any value from
1 to 250 Hz
Phase Duration: 125 µs internal sine wave
4–1,000 ms beat envelope
Available Amplitude
Modulation Options: Continuous
Surge
Reciprocation
Available Channels: All
Waveform Type: Burst modulated sine wave
Polarity: None
Volts: 0–50 volts RMS, 1 Kohm load
Current: 0–50 mA RMS, 1 Kohm load
Average current at
maximum intensity
and frequency: 50 mA RMS
Maximum current
density under 2"
diameter electrode. 2.5 mA/cm²
Frequency: 2500 Hz, Burst at
10 ms on and 10 ms off
Frequency Modulation: No
Phase Duration: 200 µs
Available Amplitude
Modulation Options: Continuous
Surge
Reciprocation
3
Available Channels: All
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
High Volt Mode
500 volts
50 %
0 volts
8 us
75 us
Figure 3.12—High Volt
Waveform
Available Channels: All
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
4
Available Channels: Channel One only
Microcurrent Mode
+
-
or
+
-
Figure 3.13—Microcurrent
Waveform
Waveform Type: Monophasic or biphasic
square wave
Polarity: Positive or negative or
biphasic pulses
Volts: 1 Volt peak, 1 Kohm load
Current: 10-990 µA peak, 1 Kohm load
Average current at
maximum intensity
and frequency: 990 µA
Maximum current
density under 2"
diameter electrode. 24.4 µA/cm²
Frequency: 0.5-500 Hz
Duty Cycle: 50%zHz
Frequency Modulation: No
Pulse Duration: 1-1000 ms
Available Amplitude
Modulation Options: Continuous
Available Channels: Channel Two only
Amplitude Modulation Specifications:
Vector rotation: Interferential Mode Only
-50% amplitude modulation in
anti phase with an eight second modulation period.
Surge Mode: Premodulated, Medium Frequency and Biphasic (TNS) Pulsed Modes
Up ramp: 3 seconds
Down ramp: 2 seconds
Preset on/off times: 10 seconds on, 10 seconds off
10 seconds on, 20 seconds off
10 seconds on, 30 seconds off
10 seconds on, 40 seconds off
10 seconds on, 50 seconds off
10 seconds on, 60 seconds off
Programmable On time: 1–240 seconds
Programmable Off time: 1–240 seconds
Reciprocation mode: Premodulated, Medium Frequency and Biphasic (TNS) Pulsed Modes
Up and down ramps: 1 second, reciprocation only
Reciprocation time: 2–240 seconds, (On time = off time)
5
Combine with Surge: Use up and down ramps of surge program
Use on/off times of surge program.
Two timer option: No
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