Sana couch 250 L and Sana cardio 250 SE
Article no.: 2.520027 Rev.:e
Page 23 of 26
8.4
Repairing Electromagnetic Disorders
The unit is only designed for operation in the following electromagnetic environment:
Radio frequency emission according to CISPR 11, group 1, class B.
Group 1 means that the ergometer exclusively uses HF energy for its internal function. This makes its HF
emission very low and unlikely to disturb electronic devices in the vicinity.
Class B means that the ergometer is suitable for use in any facilities including residential areas, even if it
is directly connected to the public mains that also supplies residential buildings.
The unit is resistant to jamming in an electromagnetic environment if the following prerequisites are met:
The voltage corresponds to the typical business or hospital environment, and the humidity is at least
30%, especially if the floors are synthetic.
If any disorders should occur nevertheless, especially in the vicinity of devices labelled with the symbol
"non-ionic electromagnetic radiation", check the recommended minimal distance according to the
following table. More information is given in the service manual.
Recommended safety distances between portable and mobile HF telecommunication devices and
the ergometer
The ergometer is designed for operation in an electromagnetic environment with controlled HF disturbance.
The customer or user can help avoid electromagnetic disturbances by keeping the minimum distance
between portable and mobile HF telecommunication devices (senders) and the ergometer, depending on the
output performance of the communication device as indicated below.
HF source
Rate
[MHz]
Rated power P of the
sender [W]
Distance
[m]
Microcellular phone, CT1+, CT2, CT3,
wireless headphones
885–887 MHz
0.01
0.23
Babyphone 27–41
MHz
0.1
0.37
Bluetooth systems (wireless mouse, wireless
keyboard, handsfree set)
2400–2500 0.0025 0.38
Cordless DECT telephone, WLAN (laptop,
PDAs), UMTS phone
1880–2500 0.25 1.17
Mobile phone
850/1900
1.2
1.8
Mobile phone, GSM850, NMT900, DCS 1800
850/900/1800
1
2.3
Mobile phone, GSM 900
900
2
3.3
Walkie-talkie (rescue services, police, fire
brigade, maintenance services)
81–470 5 2.6
Mobile radio system (rescue services, police,
fire brigade)
81–470 100 11.7
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