32
6.12 Influence of humidity
Operation range: 30 to 90 %
Storage without batteries: < 93 %
6.13 Influence of atmospheric pressure
Operation range: 91,2 a 111,4 kPa
6.14 Electromagnetic compatibility
Configuration for the normal operation
mode.
Numerical screen in dosimeter mode,
and with Lc = 87dB
Influence of Magnetic Fields In a magnetic field of 80 A/m (1
oersted) at 50 Hz, the reading will be
under 52 dB(A). With the instrument
positioned perpendicular to the
magnetic field propagation direction
and the microphone cable extended
around the instrument. In addition the
USB communication cable without
connector will be connected.
L
At
Sound pressure level at which the
DC112d/DC112 meets the requirements
of a radiated electromagnetic field.
74 dB
Set of accessories tested in the
verification of the electromagnetic
compatibility requirements.
P007 Microphone and USB connection
cable (CN1US)
Configuration for the reference
orientation.
DC112d/DC112 perpendicular to the
ground, and the microphone following
the main axis of the dosimeter, with
50cm of cable extended, and any
excess cable wound in a figure 8.
No emission difference is observed from the normal operation mode with the equipment
in a vertical position, with the microphone cable fully extended perpendicular to the main
axis of the DC112d/DC112 with all cables connected and with the USB feeder
The equipment shows no degradation or loss of function after being exposed to
electrostatic discharges.
The DC112d/DC112 shows a slight variation with respect to the electric field with the
instrument perpendicular to the propagation direction and the cables extended
perpendicular to the main axis of the instrument
The application of sinusoidal vibrations of 1 m/s
2
between 20 Hz and 1000 Hz does not
limit the operation of the instrument.
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