SV 307 User Guide
6
The SV 307 is delivered with a
waterproof power supply
. If it happens that AC
mains powering is not available, the
internal battery
can power the SV 307 for
up to 6 days. The battery life can be extended with a simple cable connection of a
solar panel or external battery
to DC-IN socket in SV 307.
Powering
Use of Solar Panel
Optionally the SB 371 solar panel (40 W) can be used to extend the autonomy of
SV 307. The SB 371 is simply connected to DC-IN socket in SV 307 with a SC 333
cable. The efficiency of charging the internal battery from solar panel depends
on the amount of sunlight available locally. In cloudy conditions (e.g. in Poland)
a minimum of 130 W solar panel is needed to supply enough power to ensure
continuous operation of SV 307.
Use of External Battery
Optionally the SB 275 external battery (33 Ah) can be used to extend the autono-
my of SV 307. The SB 275 is simply connected to DC-IN socket in SV 307.
The SB 272 should be recharged with its included dedicated charger unit
Calibration
In accordance with ISO 1996-2, imme-
diately before and after each series of
measurements, a class 1 sound calibrator
in accordance with IEC 60942:2003 shall
be applied to the microphone to check
the calibration of the entire measuring
system at one or more frequencies.
To properly calibrate the SV 307 with a
separate acoustic calibrator go to the
main menu then Calibrate by Measure-
ment.
It is necessary to carefully remove the up-
per straight tube with the anti-bird spikes
to apply the calibrator cavity directly over
the microphone of the SV 307.
Be careful not to remove the locking
sleeve for the microphone itself when
calibrating.
