3
Grounding post: the grounding point of the whole instrument for safety protection
I+, I-: Output current binding posts, I+ is the output current is positive, I- is the output
current is negative.
V+, V-: Voltage sampling terminal, V+ is the positive terminal of the voltage line, and V-
is the negative terminal of the voltage line.
RS232: Universal serial interface, the instrument can be controlled by a computer.
USB: Test results can be output to U disk.
Charging socket: AC 220V power supply, the battery can be charged after plugging in
the charger
Charging indication: The green indicator light indicates the charging is complete, and
the red indicator indicates the charging process.
V.Test and operation method
Take out and connect the special test leads provided with the machine. The red and
black test pliers are respectively clamped to two of the down conductors of the
grounding grid, and rub the contact points hard to ensure good contact. The other end
of the test line Correspond to the wiring terminal of the instrument. After confirming that
the test line is connected correctly, connect the power line and prepare for
measurement. At this time, turn on the power switch and the following interface is
displayed:
1. The boot interface is shown in Figure 1:
Figure 1
