Getting Started
R&S
®
ZNL/ZNLE
28
User Manual 1178.5966.02 ─ 19
ies and an internal charger. The internal charger charges the batteries whenever the
instrument is connected to AC power. During operation, if neither DC nor AC power is
supplied, the R&S
ZNL automatically switches to battery operation.
The battery pack can be retrofitted by Rohde
&
Schwarz service.
This option is not available for the R&S
ZNLE.
For models R&S
ZNL14 and R&S
ZNL20, hot-swapping a single Li-ion battery is possi-
ble. However, long-term operation with a single battery is not supported.
For safety information, see
Charging batteries
Charge the batteries before using battery operation for the first time. Following a long
storage period, it can be necessary to charge and discharge the batteries several times
to reach full capacity.
For batteries from third parties, follow the instructions provided by the manufacturer.
For batteries manufactured by Rohde
&
Schwarz, observe the following:
●
If inserted in the R&S
ZNL, batteries are charged via the common AC or DC power
supply.
●
You can also use the external battery charger R&S
FSV-B34 to charge up to 4 bat-
teries.
●
Charge in a temperature range from +0
°C to +45
°C. If the temperature is above
or below these values, or the temparature varies strongly, charging is interrupted. If
the battery temperature rises above +53
°C, charging is stopped.
●
Try not to overcharge the battery too often because overcharging reduces the ser-
vice life of the battery.
When the battery is being charged in standby mode, the [Power] LED blinks. During
operation, the status bar indicates that the battery is being charged.
Remote command to determine the battery charge state:
DIAGnostic:SERVice:BATTery:LEVel?
Spare battery pack (R&S
FPL1-Z4)
In addition to the internal battery pack (option R&S
FPL1-B31), spare batteries are
available for the R&S
ZNL. The spare battery pack R&S
FPL1-Z4 comprises two addi-
tional Li-ion batteries.
Preparing for use