4 Connection and commissioning
24 FieldMan Narda
4.4 Power supply/rechargeable battery
operation
This device uses a rechargeable Li-ion battery pack, which is installed and pre-charged
in the device. The included USB-C Power Delivery charger (12 V, 3 A) enables fast
charging of the built-in rechargeable batteries. A full charge takes place within 4 hours,
with 80% of capacity reached after just 2.5 hours.
4.4.1 Operation with charger connected
With the above restriction, the FieldMan can be powered from any USB interface that
supplies a current of at least 1 A
. Operation is then also possible without a built-in
rechargeable battery.
⇒ Use a floating power supply for long-term operation, e.g. a suitable power bank (PD
12 V, 2.5 A, BC1.2 and QC3.0).
4.4.2 Operation with rechargeable battery
⇒ Fully charge the rechargeable battery pack before commissioning.
Charging rechargeable batteries
If the device is not expected to be used for several months:
⇒ Charge the device before storage to avoid deep discharge.
Starting the charging process:
1. Plug the included USB-C charging power supply with the matching country adapter
into a power outlet.
2. Connect the FieldMan with the supplied USB-C cable.
↳ The charging process begins.
Measuring with the charger connected can influence the measurement properties.
This means that compliance with the technical data is no longer guaranteed.
⇒ To ensure compliance with the permissible radio interference emissions, use only
the supplied charging power supply or the car charger (optional accessory) from
Narda.
Not all USB-C cables support fast charging with Power Delivery.
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