SV 258 PRO User Manual
47
11
External DC input
voltage: 10,5 V to 28 V
Note: When external DC input voltage is in the range 11 V to 15 V, the
station is powered from the external DC source but the internal battery is
not charged!
12
External DC power
supply SB 270
15 V, 4 A, 60 W
13
External
battery
SB 272
Europower EP 33-12 (12 V, 33 Ah)
14
Operating time when
powered from the
internal and external
SB272 batteries,
(20
C, 17+33 Ah, fully
charged)
Modem is switched off:
~500h (~21d)
Mean infrequent short transmissions: ~330h (~14d)
Continuous transmission:
~270h (~11d)
15
Solar panel (option)
System best fit with solar panel with a MPPV voltage 17,5
0,5V and
power in the range of 30W to 120 W (without control system).
Note: Size and power of the panel depend on the climate of the area
where the station operates.
Measurement Line
16
SVAN 958A
Meter/analyser
Manual and data specification are available at
17
SV 84 accelerometer
Triaxial accelerometer with sensitivity1000 mV/g. Specification is
available at
18
MK 255 microphone
(optionally)
Microtech Gefell pre-
polarised 1/2” condenser microphone with sensitivity
50 mV/Pa.
Specification and characteristics are presented in Appendix C for the
SVAN 958A User Manual at
19
SA 277 outdoor
microphone kit
(optionally)
Set of weather protection for SV 12L preamplifier and MK 255
microphone. Characteristics of SA 277 and Outdoor compensation filter
are presented in Appendix C for the SVAN 958A User Manual at
Note: With the use of Outdoor environmental type compensation filter (filter must be defined in
SVAN 958A, see Chapter
) the acoustic characteristics of SA 277 conforms the class 1 sound
meters and IEC 61672:2002 standard for the direction 90 degree (parallel to the microphone
membrane).
