SV 271 LITE User Manual
15
2.1.5. SA 271 - outdoor microphone protection kit
The
SA 271
outdoor kit protects the
SVAN 971
preamplifier
and
microphone
from
weather
conditions. The use of the outdoor kit requires an
extension cable between the instrument and its
preamplifier (
SC 271
). The SA 271 is made of
lightweight materials and is easy to install on a tripod.
This solution is recommended for short term and
semi-permanent noise measurements in the
environment.
The outdoor microphone kit has ¾” screw on its
bottom which enables the use of standard tripods or
other user specific mountings. Technical data such
as direct and frequency characteristics associated
with the microphone are included in the
SVAN 971
user manual.
As an option the user may use desiccator - Silikogel.
The
desiccator
absorbs
moisture
commonly
contained in the air. The desiccator should be
regenerated after some period of use, when it
changes colour to red, by drying it for 3 hours in a
temperature of 150
°
C. The colour of the silica gel is
visible through the hole on the top of the desiccator.
Note: After assembling the SA 271 or after
calibration check that the windscreen foam is
properly installed. It should be shifted close
to the anti-bird spikes. Otherwise the SA 271
free-field characteristics will be different from
declared ones.
For absolute certainty, push the windscreen
up to the stop.
Note: Before installing the station at the
measurement site, make sure that the
protective caps on the four antibird spikes
are removed.
It
is recommended
to u
se
the
protective
caps during transportation.
