Welch Allyn SureTemp Plus 692 Series Service Manual page 37

The Welch Allyn SureTemp Plus is intended for use in the electromagnetic environment specified below.
The customer or user of the Welch Allyn thermometer should assure that it is used in such an environ-
ment.
IEC 60601
Immunity
Test
Test Level
Conducted
RF 3 Vrms
IEC 61000- 150 kHz to 80 MHz
4-6
Radiated RF
3 V/m
IEC 61000-
80 MHz to 1 GHz
4-3
Electromagnetic Immunity
Compliance
Electromagnetic Environment - Guidance
Level
Portable and mobile RF communications equipment
should be used no closer to any part of the Welch
Allyn SureTemp Plus models 690 and 692, including
cables, than the recommended separation distance
calculated from the equation applicable to the fre-
quency of the transmitter.
Recommended separation distance
3 Vrms
d = (1.17)
d = (1.17)
d = (2.33)
where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter
manufacturer and d is the recommended separation
distance in metres (m).
Field strengths from fixed RF transmitters, as deter-
3 V/m
mined by an electromagnetic site survey,
less than the compliance level in each frequency
b
range.
Interference may occur in the vicinity of equipment
marked with the following symbol:
P
80 MHz to 800 MHz
P
800 MHz to 2.5 GHz
P
a
should be
G