Welch Allyn 719 Serie Instrucciones De Uso página 18

12 A - English
The handle and charging accessory is intended for use in the electromagnetic environment specified below. The
customer or the user of the handle and charging accessory should assure that it is used in such an environment.
Immunity test
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
Note1: At 80 MHz and 800 MHz, the higher frequency range applies.
Note 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects, and people.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile
radios, amateur radio, AM and FM radio broadcast, and TV broadcast cannot be 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 in which the handle and charging accessory is used exceeds
the applicable RF compliance level above, the handle and charging accessory should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating
the handle and charging accessory.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Welch Allyn 719 Series Lithium Ion Handle and USB Charging Accessory
Electromagnetic immunity
IEC 60601 test level Compliance level
3 Vrms 3 Vrms
150 kHz to 80 MHz
6Vrms in ISM and 6Vrms .
amateur radio bands
between 150 kHz and
80 MHz.
10 V/M, 80 MHz to 2.7 10 V/M
GHz
Electromagnetic environment - guidance
Portable and mobile RF communications
equipment should be used no closer to any part
of the handle and charging accessory, including
cables, than the recommended separation
distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance
800 MHz to 2.7 GHz
80 MHz to 800 MHz
where P is the maximum output power rating of
the transmitter in watts (W) and d is the
recommended separation distance in meters
(m). Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
a
survey , should be less than the compliance
b
level in each frequency range . Interference
may occur in the vicinity of equipment marked
with the following symbol: