12. TECHNICAL DATA
CEFAR BASIC is a nerve stimulator (TENS) with two non-independent channels and three preset programs.
Treatment with electrical stimulation requires the stimulation current to penetrate the resistance of the
skin and the electrode, about 1500 ohms. CEFAR BASIC can penetrate this resistance and maintain a cur-
rent of up to 60 mA. With a change in load from 100 to 1500 ohms, the stimulation current changes less
than 10% from the set value.
The stimulator operates on either two non-rechargeable 1.5 V AA batteries or two rechargeable 1.2 V AA
batteries, recharged in a separate charger.
CEFAR BASIC
Number of channels . . . . . . . . . . . . . . . . . . . . . . . . . .2 (non-independent)
Constant current . . . . . . . . . . . . . . . . . . . . . . . . . . . .Up to a resistance of 1500 ohm
Stimulation current/channel . . . . . . . . . . . . . . . . . . . .0–60 mA
Waveform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Asymmetrical biphasic pulse, 100% compensated
Number of preset programs. . . . . . . . . . . . . . . . . . . . .3
Stimulation forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . Conventional
Burst
Modulated pulse duration
Max pulse duration...........................180 μs
Max frequency ..............................80 Hz
Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to 60 min
Environment for
storage, use and shipping. . . . . . . . . . . . . . . . . . . . . .Temperature 10ºC–40ºC
Air humidity 30%–75%
Air pressure 700 hPa–1060 hPa
Power source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 x 1.5 V AA non-rechargeable or
2 x 1.2 V AA rechargeable batteries
Current consumption for
one channel, 80 Hz, 30 mA . . . . . . . . . . . . . . . . . . . .150 mA
I r.m.s. max/channel . . . . . . . . . . . . . . . . . . . . . . . . .11 mA
Size .....................................120 x 50 x 30 mm
Weight ...................................ca. 180 g
