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Monitoring Station SV 279 PRO
37
Nr
Parameter
Value/ Description
24
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!
25
External DC
power supply
SB 270
15 V, 4 A, 60 W
External battery
SB 272
Europower EP 33-12 (12 V, 33 Ah)
26
Operating time
when powered
from the internal
and external
SB272 batteries,
(20
C, 17+33 Ah,
fully charged)
Modem is switched off:
~550h (~23d)
Mean infrequent short transmissions: ~350h (~14d)
Continuous transmission:
~280h (~12d)
27
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
30
SVAN 979
Meter/analyser
Datasheets are available at
http://www.svantek.com .
31
SA 279 outdoor
kit
Set of weather protection for SV 12L preamplifier and ACO
7052E microphone.
32
ACO 7052E
microphone
Pre-
polarised 1/2” condenser microphone with sensitivity 35
mV/Pa.
Note: With the use of Outdoor Airport type compensation filter (filter must be
defined in SVAN 979, see chapter 2.1.4) the acoustic characteristics of SA 279
conforms the class 1 sound meters and IEC 61672:2002 standard for the
direction 0 degree (normal direction regarding the microphone membrane). With
the use of Outdoor Environmental type compensation filter the acoustic
characteristics of SA 279 is switched to the direction 90 degree (parallel to the
microphone membrane).