14
Manufacturer's instructions and declaration - Electromagnetic immunity
The model RS electronic digital scale is intended for use in the electromagnetic environ
-
ments as specified below. The customer or the user must ensure that the scale is used in
such an enviroment.
Immunity test
Conformity
Guidelines for electromagnetic environment
Immunity against
conductor-bound
disruptions IEC/
NEK-EN61000
- 4 - 6
3 Vrms 150 kHz to
80 MHz (for devices
that are not life-sup
-
porting)
Portable and mobile radio frequency-based
communications equipment must not be used
closer to the device, including conductors, than
the recommended distance calculated based
on the applicable formula for the transmitter's
frequency. Recommended distance between
devices
d = 1.2√P d = 1.2 √P
From 80 MHz to 800 MHz d = 2.3√P
From 800 MHz to 2.5 GHz,
where P is the maximum rated output power
for the transmitter in watts (W) as per the man
-
ufacturer of the transmitter, and d is the rec
-
ommended, seperation distance in metres (m).
The field strengths from fixed radio frequency
transmitters, as measured in an electromagnetic
examination of the location, a ought to be lower
than the compliance level in each frequency
range b. Interference may occur in the area
around devices, which is marked with the follow
-
ing symbol:
Immunity radi
-
ated IEC/NEK-
EN61000 - 4 - 3
3 V/m 80 MHz to
2.5 GHz (for devices
that are not life-sup
-
porting)
At 80 MHz and 800 MHz the higher frequency range applies. It is possible that these guide
-
lines do not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from buildings, objects and people.
a) Field strengths from fixed transmitters, such as base stations for radiotelephones
(mobile/wireless) and land mobile radios, amateur radio equipment, AM and FM radio
transmitters and TV broadcasting, cannot be estimated reliably theoretically. Consid
-
er performing an electromagnetic field survey in order to assess the electromagnetic
environment that is caused by fixed radio frequency transmitters. If the measured field
strength at the location where the device is being used exceeds the compliance level for
radio frequency energy that will be used, then you should observe the device in order to
check that its operation is normal. If abnormal operation is observed, further precautions
may be necessary, for example turning or relocating the device.
b) Over the frequency range from 150 kHz to 80 MHz the field strength should be less
than 3 V/m.
©
Guldmann
G
B
-06/2021 • # 560642_101
©
Guldmann
G
B
-06/2021 • # 560642_101
