30
Problem
Possible cause
Solution
The skin
turns red
and/or a
stabbing
pain occurs.
The cuff is not posi-
tioned correctly on
the skin.
Ensure that the
cuff sits securely
on the skin and
cannot move.
The cuff is dirty.
Clean the cuff as
described in these
instructions for
use.
One of the water
contact electrodes
has a scratch.
Replace the cuff.
Water contact elec-
trodes are not suffi-
ciently moist.
Switch off the
device. Moisten
electrodes.
Stimulation
stops during
use.
The cuff has come
loose from the skin.
Stop the applica-
tion and reposition
the wrist cuff.
The connection
cable has worked
itself loose.
Stop the applica-
tion and reinsert
the connection
cable.
The batteries are
empty.
Replace the
batteries on the
control unit.
If you cannot find a solution to your problem here, contact
our Customer Services.
10. Technical specifications
Wrist circumference
From approx. 14 cm
Type
EM 29
Model
EM 28
Weight
– Device
– Device, cuff and
cable
– Approx. 90 g incl. batteries
– Approx. 155 g incl. batteries
Electrode size
Approx. 80 cm²
Parameter
(500 ohm load)
Output voltage:
max. 50 Vpp / 5.5 V rms
Output current:
max. 100 mApp / 11 mArms
Output frequency:
2 – 110 Hz
Pulse length
60 – 220 μs per phase
Waveform
Symmetric, biphasic
rectangular pulse
Voltage supply
4.5 V
(3 x 1.5 V AAA, type LR03)
