neuroConn DC-Stimulator, User Manual

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Chapter 8 - Electromagnetic compatibility
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predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF
transmitters, an electromagnetic site survey should be considered. If the measured field strength in
the location with the device or system is used exceeds the applicable RF compliance level above,
the device or system should be observed to verify normal operation. If abnormal performance is
obsered, additional measures may be necessary, such as reorienting or relocating the device or
system.
b Over the frequency range 150 kHz to 80 MHz, field strength should be less than 3 V/m.
Performance Criteria
A All functions of a device/system perform as designed during and after exposure to disturbance.
B One or more functions of a device/system do not perform as designed during exposure but return
automatically to normal operation after exposure is removed.
C One or more functions of a device/system do not perform as designed during exposure and do not
return to normal operation until exposure is removed and the device/system is reset by simple
"operator/use" action.
This means for the user of the neuroConn system: if voltage dips, short interruptions
and voltage variations on power supply input lines occured the user has to turn off and
turn on the device. After this restart the system provides all functionalities as usual.
D One or more functions of a device/system do not perform as designed during and after exposure
and cannot be returned to proper operation without repairing or replacing the device/system.
Recommended separation distances between portable and
mobile RF communication equipment and the device or system
The device or system is intended for use in the electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the device or system can help prevent
electromagnetic inference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the device or system as recommended below, according
to the maximum output power of the communication equipment.