R&S FSH3 Charging the Battery
Charging the Battery
The R&S FSH3 is fitted with a nickel metal hydride battery. The operating time is approx. four hours at
room temperature if the battery is fully charged.
Note: The battery in the R&S FSH3 is not charged when it leaves the factory. It must therefore
be charged after delivery.
When stored over an extended period, self-discharge reduces battery charge. The battery should
therefore be charged before use if it is going to be the sole power source for a long period of operation.
The charging status of the battery is displayed by a
symbol that looks like a battery in the middle of the
screen above the row of softkey labels. If the battery is
fully charged, the battery symbol is all white. As the
battery discharges, the white coloring disappears in
five steps until just the battery outline indicates that the
battery is flat.
Battery charge-level symbol
The battery is charged via the supplied adapter. It is connected to the jack on the right-hand side of the
carrying handle.
If required, equip the power supply with
the country-specific plug. Remove the
plug from the power supply towards the
front and firmly connect the appropriate
plug to the power supply.
Mains adapter
Power supply
DC power jack
For rapid charging, we urgently recommend that you switch off the R&S FSH3 during charging. The
charging time is approx. four hours.
If the R&S FSH3 is switched on, the charging current for the battery is reduced by the current drain of
the R&S FSH3, which means the battery might not be charged.
To save the battery, the R&S FSH3 has an automatic cut-off or auto power down mode which is
activated if no entry is made for a selectable time (5 or 30 minutes).
The auto power down mode is deactivated in the default setting.
The auto power down mode is set as follows:
1145.5973.12 1.11 E-6
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