R&S ZNH, Getting Started

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Preparing for Use
R&S
®
ZNH
13 Getting Started 1334.5979.02 ─ 03
3.1.5 Battery Operation
The R&S ZNH has a smart battery indicator which displays the battery charging
status on the [Power] key as well as the battery icon shown at the top right corner
of the display screen. See
Chapter 4.6, "Display Overview" , on page 24.
The lithium ion battery has a capacity of 6.9Ah / 74Wh (at nominal voltage of
10.80V) and it allows operation at preset condition of up to 4 hours when it is fully
charged.
The actual operation time depends on the current charged status (see Fig-
ure 3-2 ), the ambient temperature and the operating mode of the R&S ZNH.
For a summary of the LED indication of the [Power] key, see Table 3-1 .
The battery charging and discharging process of the battery icon indicated in the
display screen is illustrated below:
Figure 3-2: Battery charging and discharging process
Charging time is about three hours when the R&S ZNH is in inactive mode (i.e.
R&S ZNH is switched off). If the instrument is in active mode (i.e. R&S ZNH is
switched on), the charging time is extended to about five hours because the
charging current is reduced as the power is partially drained by the usage of the
R&S
ZNH.
During operation in the field, you can also charge the battery with the car adapter
(R&S HA-Z302, order number 1321.1340.02). You can connect the car adapter to
the DC port. With the car adapter, you are able to charge the R&S
ZNH via the
car's cigarette lighter socket. A replacement battery (R&S HA-Z306, order num-
ber 1321.1334.02) with the same capacity and charging time as the battery inclu-
ded in the standard delivery is also available if necessary.
Putting into Operation
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