Quell QE-001 User Manual - page 32
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APPENDIX F: Technical Specifications
APPENDIX F
Technical Specifications
Output
Waveform
Biphasic with alternating leading phase, asymmetrical,
rectangular
Regulated Current or Voltage
Current
Net Charge per Pulse
Nominally 8 μC @ 500 per pulse; nominally 0 μC per sequential
pair of pulses; zero net current
Maximum Output Voltage (±10%)
100 V
Maximum Output Current
(<1KΩ load) (±10%)
100 mA
Pulse Duration (±4%)
280 µsec
Pulse Frequency (±4%)
60-100 Hz, randomly varying, or 30-50 Hz, randomly varying.
Alternate pattern has uniform frequency distribution of 4 pulse
sequences at 15-25 Hz; each pulse sequence lasts 8.6 msec with
pulses evenly spaced; mean frequency is 80 Hz.
Pulse Pattern
Continuous or burst (4 pulse bursts, randomly 15-25 Hz with
mean 20 Hz)
Maximum Phase Charge
18 µC
Maximum Current Density
0.6 mA/cm
2
into 500Ω load
Maximum Average Current
2.8 mA into 500Ω load
Maximum Average Power Density
5 mW/cm
2
into 500Ω load
Output Trips
No Load
Device not connected to patient
Insufficient Charge
Delivered charge below target
Over Load
Delivered charge above target
Electrode Peeling
Electrode dislodging from skin
Therapy Session
Timer
30 minutes or 60 minutes
Start Therapy
Click button once or via app
Stop Therapy
Click button 4 times or via app
Manual Intensity Increase/Decrease
0.5-2 mA / sec
Habituation Compensation
Adaptive stepwise increase in intensity during session
Electrode
Type
Self-adhering, single-patient use, multiple applications
Materials
Mylar substrate, silver electrode pads
Number of Electrodes
2, outer electrode area 28 cm
2
, inner electrode area 33 cm
2
Connector
Medical snap (male)
Dimensions
0.2 cm x 5.3 cm x 28.3 cm (exterior)