Technical data

98 Agilent U1251B/U1252B User’s and Service Guide
5 Maintenance
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.
4 The primary display indicates “bAt” and the ‘SbY” flashes
on the secondary display and a short tone sounds to
remind you whether to charge the battery or not. Press
Shift to start 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%.
Figure 5-1 Battery capacity display as trickle
Condition Battery Voltage Proportional Percentage
Trickle (SBY) 6.0 V ~ 8.2 V 0% ~ 100%
Under charging 7.2 V ~ 10.0 V 0% ~ 100%