Vaisala WAA151 Installation Manual Page 31

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Chapter 2 ___________________________________________________________Product Overview
VAISALA ________________________________________________________________________ 29
QBR101 Battery Regulator
0105-007
Figure 11 QBR101 Battery Regulator
QBR101 Battery Regulator is a charging and supervising equipment
for 12/24 Volts lead acid and nickel-cadmium batteries. QBR101
allows simultaneous input from both a solar panel and AC power
(BWT15SXZ).
The maximum charging current can be set by the internal jumper
settings between 0.5 to 2.5 A being applicable for battery capacity of 4
to 72 Ah. The self-consumption from the battery is very low, less than
0.2 mA, which is required at installations at remote locations.
Also included are LED lamps which indicate the conditions. In order
to maximize autonomy time, the lamps are activated only while
pressing the ON button. QBR101 is a rail-mountable unit allowing
easy maintenance.
AC Power Supply (Optional)
The Mains power supply unit BWT15SXZ is a switching power
supply, which operates from the universal AC input of 85 to 264 VAC
and 47 to 440 Hz. The output voltage is 15 VDC, which is used for
powering the MAWS301 system, and as an input to the QBR101
battery regulator for charging the backup battery.
BWT15SXZ is installed inside the BOX501 on a standard DIN-rail
enabling easy maintenance of the unit.
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