Sanitas SEM 42, Инструкция по эксплуатации

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• Never use with any activities where an unforeseen reaction (e.g.
increased muscle contraction despite low intensity) may be danger-
ous.
• Make sure that no metallic objects such as belt buckles or neck-
laces can come in contact with the electrodes during stimulation. If
you wear any jewellery or piercings (e.g. belly piercing) near the ap-
plication site, you must remove these before using the machine as
burning may otherwise occur at some points.
• Keep the device away from children to prevent any hazards.
• Do not confuse the electrode cables and contacts with your head-
phones or other devices, and do not connect the electrodes to other
devices.
• Do not use this machine at the same time as other equipment
which sends electrical pulses to your body.
• Do not use it near any highly flammable substances, gases or explo-
sives.
• Never use accumulators, always use the same types of battery.
• In the initial minutes, carry out the application sitting or lying down
in order to avoid any unnecessary risk of injury in the rare event of a
vagal reaction (feeling of weakness). If you start feeling weak, switch
the machine off immediately 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 un-
pleasant current spikes may occur here.
Damage
• If the device is damaged, do not use it and contact your retailer or
the specified Customer Services address.
• 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 ma-
chine 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
improper or wrong use.
3. Current parameters
Electrical stimulation machines operate with the following current set-
tings, 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 dif-
ferentiated from biphase. With monophase pulse
trains, the current flows in one direction. With bi-
phase pulses, the excitation current alternates its
direction.
In the Digital EMS/TENS unit, there are only bi-
phase 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 calculated by working out the inverse value
of the periodic time. The respective frequency de-
termines 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 fre-
quencies can therefore preferably be used for elasticity and maximum
strength training.
3.3 Pulse width
Pulse width is used to indicate the duration of an
individual 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.
pulse int
ensity
monophase pulses
time
biphase pulses
periodic
time
Pulse width