Sper scientific 420001, Руководство пользователя

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10
4.LOW RESISTANCE (CONTINUITY)
MEASUREMENTS
a).
Set the range switch to 400 Ω /BZ Position
b).
Connect the red test lead to the V Ω terminal and black to the
COM terminal.
c). Connect the tips of the test leads to both ends of the circuit under
test. read resistance in Ω on the LCD.
The two
ranges(40.00/400.0
Ω ) can be switched automatically;
the
primary display of the resistance in
Ω , flashes in synchronous
with the analog bar.
d). When the impedance on circuit is below approximately
≤
35 Ω .It
will indicate by a continuous beeper.
e) The current is from 200 to 220mA while the tested resistance is
0 Ω
f) T he high voltage symbol “ “ flashes along with a primary
display of “>30V” and the buzzer warn s frequently if the voltage
(AC/DC) is more than 30V.
5.AC/DC VOLTAGE MEASUREMENTS
a). Set the range switch to ACV or DCV position
b). Connect red test lead to “V Ω ” terminal and black test lead to
terminal “COM”.
c). Connect test prods of test leads IN PARALLEL to the circuit being
measured.
d). Read the voltage value on LCD.