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Chapter 04 – Installation 15
10911 V01.10
Chapter 04
Installation
4.1 Mains operation
Only power the device from the mains using an external mains adapter connected to the 12 V extra-low voltage jack. A
suitable adapter with connecting cable is included in delivery (see “External power supply”).
IMPORTANT!
Always disconnect the device from the power supply when disassembling the device (e.g. replacing
batteries).
4.2 Battery opreation
4.2.1 Replacing the battary
Only the manufacturer or service technicians authorised by the manufacturer may replace the internal battery. The
manufacturer’s guarantee will be void if the housing of the measuring receiver is opened by anyone else.
4.2.2 Battery management
The device has internal battery management, which optimises the charging and discharging of the battery. The battery
begins to charge as soon as the device is connected to the mains or an external voltage supply. The device starts in
charging mode if it is not being used; during this time only the OSD window on the top left is shown with the text
“Charging BATT” and the battery symbol.
The display screen turns off after a minute. Pressing any button turns the display back on. If the device is operated in
measuring mode, the charging current may be reduced somewhat depending on the operating status, causing the
charging process to take longer. When the battery is being charged, the “charge” LED lights up red. Once the battery is
fully charged, the internal battery management switches to maintenance charging and the “charge” LED turns green.
The device also has a charge status indicator. A status bar in the frequency window indicates the remaining charge of
the battery at all times. If the battery charge becomes critical, the word “low” appears in red next to the bar. You can
still complete the current measurement, but the battery should then be recharged as soon as possible. The device
shuts down automatically to prevent total discharge.
4.3 Operation using an external power supply
In addition to using the battery, you can run the device on external direct current supplied by the mains adapter or the
cigarette lighter adapter in a vehicle, for example. Direct current is fed via the extra-low voltage jack on the bottom
section of the device. The external voltage supply must be in the range of 11 V to 15 V. The maximum current con-
sumption is 2.5 A. When the device is supplied with appropriate voltage, the “charge” LED on the front side of the
device lights up.
4.4 Fan control
A small, in-built fan ensures that the electronic components are well ventilated. This fan is controlled by the micropro-
cessor using a temperature sensor.
Summary of Contents for VAROS109
Page 1: ...VAROS109 Digital satellite measuring receiver Manual ...
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