Keysight U1251B Guide De Démarrage Rapide page 5

4 The primary display indicates "bAt" and the
For the battery charger, the mains supply voltage
NOTE
should not fluctuate by plus or minus 10%.
CAUTION
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Keysight U1251B and U1252B Quick Start Guide
"SbY" flashes on the secondary display and a
short tone sounds to remind you whether to
charge the battery or not. Press
charging the battery, or the meter will
automatically start the self-test after the 24 V
supply is applied. We recommend not to
charge the battery if its capacity is over 90%.
Do not rotate the rotary switch from
position when charging the battery.
Perform battery charging only with 7.2 V or
8.4 V NiMH rechargeable battery, 9 V size.
Disconnect test leads from all the terminals
when charging the battery.
Ensure proper insertion of battery in the
multimeter, and follow the correct polarity.
Upon initial use (or after a prolonged storage
period), the rechargeable battery may require
three to four charge/discharge cycles before
achieving maximum capacity. To discharge,
simply run the multimeter under the
rechargeable battery's power until it shuts
down or the low battery warning appears.
The multimeter may indicate that charging is
complete after ten minutes when charging a
new rechargeable battery. This is a normal
phenomenon with rechargeable batteries.
Remove the rechargeable battery from the
device, reinsert it, and repeat the charging
procedure.
to start
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