Supplement
R&S NRP
1144.1400.12-04- Supplement
2 E-
2
The data sheet specifies how long the R&S NRP can be operated from the battery. The battery
operating time depends on the number and type of the connected sensors and especially on the
brightness of the display backlighting.
The battery can be charged at temperatures between 5°C and 30°C and discharged at temperatures
ranging from 0°C to 40°C. To prolong the life of the battery, however, the instrument should not be
operated too frequently at the upper limit temperatures. If the battery is charged at temperatures above
30°C, the charging process is repeatedly interrupted to allow cooling, which considerably extends the
charging time. If the temperature exceeds a value of about 35°C, charging is practically discontinued.
It is normal that battery charging continues after the battery has been charged 100%. To prolong the life
of the battery, this process should not be aborted.
Since NiMH batteries are subject to considerable self-discharging, an R&S NRP that is equipped with
the R&S NRP-B3 option should not be stored for more than three months without being connected to
the AC supply.
Caution
The performance of a "Smart Battery" may be manufacturer-specific. Only the original
battery will ensure correct functioning and a charging functionality that prolongs the life
of the option.
The safety test marks lose their validity if batteries from other manufacturers are used.
Calibrating the charge counter
From time to time, the battery must be calibrated so that the remaining operating time is not displayed
incorrectly as a result of the battery's decreasing capacity over time. A calibration cycle can
automatically take place in normal operation, if the R&S NRP is fully discharged after being fully
charged, without intermittently connecting the instrument to the AC supply. In this case, no further
action on the part of the user is required.
However, if calibration is not performed in normal operation, after some time the battery will request a
calibration cycle. This request will be displayed after the R&S NRP has been switched on.
Switch on the R&S NRP
:
Request for a calibration cycle from the battery
