32 Keysight B2980B User’s Guide, Edition 1
Introduction
Front View
Enables or disables Voltage Source. In the On status, the Voltage Source High
terminal is connected to Voltage Source and the switch turns green. In the Off
status, the output terminal is opened and the switch light turns off. Pressing
the On (green) switch turns it to the Off status even if the instrument is in the
remote control state.
The switch turns red if the voltage source is in the high voltage state over
21 V.
• Battery charge level indicator,
for B2983B and B2987B
Indicates charge level of the
built-in Lithium-ion rechargeable
battery.
When the instrument power is off and the battery charging is in progress, the
LED below the standby switch turns orange.
¡60 % ¡40 % ¡20 % <20 %¡80 %
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