SV 271 LITE User Manual
16
Note: See also SA 271 Assembly Guide to learn how to assemble and
disassemble the microphone’s outdoor protection.
Note: Correct connection of the microphone is not signalled by the controller
therefore it is recommended to perform a test measurement each time the
station is turned on.
2.2. O
PTIONAL ACCESSORIES FOR
SV 271 LITE
SYSTEM
2.2.1. SV 33B
– Class 1 Sound Calibrator
For result verification purposes, most norms and
standards impose the requirement to calibrate the
measurement channel before and after each
measurement or measurement session.
Sound calibrator is a device which produces a sound
pressure of defined level and frequency.
SV 33B
Sound Calibrator produces a sound
pressure of defined level 114 dB at a frequency of
1 kHz.
2.2.2. SB 272 - External rechargeable battery
SB 272
is an external source of DC power for the
monitoring station. SB 272 includes a Lead-Acid
rechargeable battery (33 Ah, 12 V) and is dedicated
for outdoor use because of its waterproof case. The
battery capacity enables up to three times longer
operating time of the monitoring station in
comparison to the station’s internal 17 Ah battery.
The SB 272 set includes the SB 273 indoor charger
and a cable for connection between SB 272 and the
monitoring station case.
SB 272 has one connector for charging and for power supply and therefore cannot be
used as a power supply for the monitoring station and at the same time be charged
itself (as the internal station battery with solar panel or external power supply).
Note: SB 272 cannot be charged by the SB 270
station power supply!
Note: SB 272 is not restricted for air, surface and water transport. Classified
as non-hazardous material (IATA/ICAO Special Provision A67, DOT-CFR
Title 49 parts 171-189, IMDG amendment 27).
Note: It is necessary to charge SB 272 after any total discharge, otherwise
the battery may lose its capacity
.
Note: SB 272 should not be stored for a long time with a discharged battery.
Storing SB 272 with a discharged battery can damage the battery. Storing
SB 272 with a discharged battery for more than one month may result in
impossibility to recharge the battery.
