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22 Safety
tance from e.g. washing machines, computers, microwaves, vacuum
cleaners, power tools, etc.
The device and the system can be used in the home and in all other
environments that public utilities supply directly.
Bear in mind that portable and mobile HF communication devices,
e.g. cellular phones, radio equipment, walkie-talkies, etc., can inter-
fere with the monitor and influence its operability.
Bear in mind that non-approved accessories can amplify emitted
interference and reduce the device’s immunity.
Do not place the monitor directly next to other electrical equipment,
and do not stack monitors on top of each other.
When the monitor has to be placed next to or on other equipment,
check that the monitor operates as designed in this environment.
We recommend you to check at regular intervals:
– that the displayed signals are not disrupted when the patient is
not moving,
– whether the same technical alarm messages are repeatedly displayed.
When you discover disruptions:
– if possible, switch off the interfering equipment or move this
equipment to another site.
VitaGuard® uses high-frequency signals exclusively for its internal
functions. As a result, its emitted interference is very low, and dis-
ruption to neighboring electronic equipment is unlikely.
False diagnoses are possible when monitored values are corrupted
by interference from electric or electromagnetic fields and this
escapes the doctor’s attention. Every time you analyze stored data,
consider the possibility of interference from electric or electromag-
netic fields.
VitaGuard®’s emitted interference and immunity to external interfer-
ence are within the limits for life-supporting systems stipulated in the
standard EN 60601-1-2.