Sana Bike 350 F and 450 F
Article no.: 2.520068 Rev.: a
Page 22 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 hu-
midity 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 Sana Bike 350/450 is designed for operation in an electromagnetic environment with controlled HF dis-
turbance. The customer or user can help avoid electromagnetic disturbances by keeping the minimum dis-
tance 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]
Radio telephone (microcellular) CT1+, CT2,
CT3
885–887 MHz
0,01
0,23
Cordless DECT telephone, WLAN, UMTS pho-
ne
1880-2500 0.25 1.17
Mobile phone USA
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 telephone system (rescue service,
police, fire brigade)
81-470 100 11.7
