Beurer EM80 - Инструкция по эксплуатации - Страница 23

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(feeling of weakness). If you start feeling weak, switch the device off im-

mediately and put your legs up (approx. 5-10 minutes).

•  It is not advisable to apply any enriching creams or ointments to the skin 

beforehand, as this greatly increases electrode wear or else unpleasant 

current spikes may occur here.

Damage:

•  If the device is damaged, do not use it if you are in any doubt but rather 

contact your dealer or the customer service address indicated.

•  Check the device at regular intervals for signs of wear or damage. If you 

find any such signs or if the device was used improperly, you must bring it 

to the manufacturer or dealer before it is used again.

•  Switch off the device immediately if it is defective or if is not working 

properly.

•  Do not, under any circumstances, attempt to open or repair the device 

yourself! Only have repairs carried out by the customer service department 

or an authorized dealer. If these instructions are not heeded, the warranty 

becomes null and void.

•  The manufacturer assumes no liability for damage caused through impro-

per or wrong use.

Information on ESD (Electrostatic Discharge)

Please note that jacks marked with the ESD warning label must not 

be touched.
ESD protective measures:

– Do not touch plugs/jacks marked with the ESD warning label with fingers!

–  Do not touch plugs/jacks marked with the ESD warning label with handheld 

tools! 

Further explanations on the ESD warning label, as well as possible training 

courses and their contents, are available on request from the customer 

service department.

3. Current parameters

Electrical stimulation devices operate with the following current settings, 

which will alter the stimulation effect depending on the setting.

3.1 Pulse shape

This describes the time function of the excitation current, 

whereby monophase pulse trains are differentiated from 

biphase. With monophase pulse trains, the current flows 

in one direction. With biphase pulses, the excitation cur-

rent alternates its direction.

In the Digital TENS/EMS unit, there are only biphase pulse 

trains, as they reduce the strain on the muscle, leading to 

less muscle fatigue as well as safer application.

3.2 Pulse frequency

Frequency indicates the number of individual pulses per

second, and is indicated in Hz (Hertz). It can be calcu-

lated by working out the inverse value of the periodic 

time. The respective frequency determines which types 

of muscle fibre preferably react.

Slow-response fibres tend to react to lower pulse frequencies up to 15 Hz, 

while fast-response fibres only respond to frequencies over approx. 35 Hz. 

With pulses of approx. 45-70 Hz, there is permanent tension in the muscle 

combined with premature muscle fatigue. Higher pulse frequencies can the-

refore preferably be used for elasticity and maximum strength training.

3.3 Pulse width

Pulse width is used to indicate the duration of an indivi-

dual pulse in microseconds. Pulse width also determines 

the pene tration depth of the current whereby in general, 

the following applies: a greater muscle mass requires a greater pulse width.

3.4 Impulsintensität

Setting the degree of intensity is individually dependent 

on the subjective feeling of each individual user and is 

determined by a number of parameters such as application 

site, skin circulation, skin thickness as well as quality of 

electrode contact. The actual setting should be effective but should never 

produce any unpleasant sensations such as pain at the site of application.

While a slight tingling sensation indicates sufficient stimulation energy, any 

setting which leads to pain must be avoided.

pulse int

ensity

monophase pulses

time

biphase pulses

Pulse width

periodic

time