Keysight U1251B Guia Del Usuario página 134

5 Maintenance
Use the specified 24 V DC adaptor to charge the battery. Remember never to turn
the rotary switch of the meter when its battery is being charged. Use the following
steps to charge the battery:
1 Disconnect the test leads from the meter.
2 Turn the rotary switch to the
3 Plug the Red (+)/ Black (–) banana terminals of the DC adapter to the
4 The primary display will show "bAt" and the 'SbY" will be shown on the
Table 5-1 Battery voltage and corresponding percentage of charges in standby and charging
modes
Condition
Trickle (SBY)
Charging
132
DC adapter.
and the "COM" terminals respectively. The DC adaptor can be replaced with a
DC power supply in order to set the 24 V DC output and the over current
limitation to a value more than 0.5 A. Ensure that the polarity of the connection
is correct.
secondary display and a short beep will sound to remind you whether you
need to charge the battery. Press SHIFT to start charging the battery, or the
meter will automatically start the self-test after the 24 V supply is applied. It is
recommended that you do not charge if the battery's capacity is over 90%.
position. Connect the power cord to the
Battery voltage
7.0 V to 9.6 V
7.2 V to 10.0 V
Keysight U1251B and U1252B User's and Service Guide
Proportional percentage
0% to 100%
0% to 100%