Technical specifications – Beurer EM 38 User Manual
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Problem/question
Possible cause/remedy
You feel an unpleasant sensation
from the electrodes.
The electrodes are poorly moistened. This can lead to skin irritation, as
the current is no longer distributed evenly over the entire surface. Switch
off the unit. Take off the belt, moisten the belt (electrodes) and your lower
back and restart the program according to the manual.
The skin in the treatment area
becomes red.
Discontinue the treatment immediately and wait until the skin condi-
tion has normalised. Temporary skin reddening under the electrode is
harmless and can be explained by the localised increase in blood flow.
However, if the skin irritation persists and you feel itching or irritation,
consult your doctor before continuing use. The cause may be an allergy
to the surface of the electrode.
10. Technical specifications
Belt size for waist sizes from
Approx. 75 to 140 cm
Weight (belt and unit)
Approx. 415 g with batteries
Electrode size
Approx. 81 x 65 mm
Parameters (500 Ohm load)
Output voltage: max. 50 Vpp / 5.5 Vrms
Output current: max. 100 mApp / 11 mArms
Output frequency: 2 – 110 Hz
Pulse duration
60 – 220 μs per phase
Wave form
Symmetric, biphasic rectangular pulses
Power supply
4.5 V (3 x 1.5 V AAA, type LR 03)
Operating conditions
0 °C to 40 °C, 20 to 65% relative humidity
Storage
0 °C to 55 °C, 10 to 90% relative humidity
We reserve the right to make any technical alterations that are necessary in order to improve and develop the
product further. If the unit is used outside of the specifications, proper function is no longer guaranteed!
This unit complies with European standards EN60601-1, EN60601-1-2 and is subject to special precautions
regarding electromagnetic compatibility. Note that portable and mobile RF communication equipment can affect
this unit. For detailed information, contact customer service at the address provided.
The unit conforms to the requirements of the European Directive for Medical Products 93/42/EC, the MPG (Ger-
man Medical Devices Act). In accordance with the MPBetreibV (German Medical Device Operator Ordinance),
regular metrology checks must be performed if the unit is used for commercial or business purposes. Even for
private use, we recommend having the manufacturer perform a metrology check every 2 years.