The diagram of the ground wire connection when the battery-powered oscilloscope is
connected to the AC-powered PC through the ports:
It is not allowed to measure AC power when the oscilloscope is AC powered, or when
the battery-powered oscilloscope is connected to the AC-powered PC through the
ports.
Warning:
To avoid fire or electrical shock, when the oscilloscope input signal
connected is more than 42V peak (30Vrms) or on circuits of more than
4800VA, please take note of below items:
⚫ Only use accessory insulated voltage probes and test lead.
⚫ Check the accessories such as probe before use and replace it if
there are any damages.
⚫ Remove probes, test leads and other accessories immediately after
use.
⚫ Remove USB cable which connects oscilloscope and computer.
⚫ Do not apply input voltages above the rating of the instrument
because the probe tip voltage will directly transmit to the
oscilloscope. Use with caution when the probe is set as 1:1.
⚫ Do not use exposed metal BNC or banana plug connectors.
⚫ Do not insert metal objects into connectors.
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