Somogyi Elektronic home VC 830L, Инструкция по эксплуатации

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DC measurement
Connect the red probe cable to the “mAVΩ”
socket, and the black one to the “COM”
socket. (for measurements between 0.2
mA and 10 A, plug the red probe cable into
the “10A” socket) Set the dial to the desired
position. Interrupt the circuit whose current
is to be measured then connect the probe
to the points to be measured. If the value to
be measured is unknown, set the dial to the
highest measurement range then reduce the
range according to the reading until correct.
Read the value, including the polarity, from
the LCD display.
Measurement limit Resolution Accuracy
20 µA 10 nA
±(1.5% offset ± 3 digits)
200 µA 100 nA
2 mA 1 µA
20 mA 10 µA
200 mA 100 µA
10 A 10 mA ±(2% offset ± 5 digits)
Over-current protection:
“mAVΩ” socket: F 200 mA / 250 V fuse
“10A” socket: without fuse
Measurement of AC voltage ( )
Connect the red probe cable to the “mAVΩ”
socket, and the black one to the “COM” socket.
Set the dial to the desired measurement
range. Connect the measurement probe to
the circuit to be measured. If the value to
be measured is unknown, set the dial to the
highest measurement range then reduce the
range according to the reading until correct.
Read the voltage value from the display.
Measurement limit Resolution Accuracy
200 V 100 mV ±(1.2 % offset ± 10 digits)
600 V 1 V
Input resistance: 1 MΩ
Frequency range: 40 Hz-200 Hz
Diode and interruption testing ( )
Diode testing: Connect the red probe cable
to the “mAVΩ” socket, and the black one to
the “COM” socket (the red probe is for “+”
polarity).
Set the dial to the “ ” position.
Connect the red probe cable to diode’s anode,
and the black one to its cathode. The display
will show the diode’s approximate forward
voltage. If the connection is reversed, a “1”
will appear in the display.
Interruption testing: Connect the red probe
cable to the “mAVΩ” socket, and the black
one to the “COM” socket. Set the dial to the
“ ” position. Connect the measurement
probe to the circuit to be tested. If the circuit
is connected to a power source, switch of the
power source and discharge the capacitors
before starting measurement. Short-circuits
(less than 70 ± 20 Ω) will be indicated by the
built-in buzzer.
Function Resolution Measuring environment
1 mV
Measurement current:
approx. 1 mA
Idle voltage: approx. 3 V
The built-in buzzer will
activate below 70±20 Ω Idle voltage: approx. 3 V
Overload protection: 250 V DC or 250 V AC
RMS
Resistance measurement (Ω)
Connect the red probe cable to the “mAVΩ”
socket, and the black one to the “COM”
socket. (The red probe cable is “+” polarity).
Set the dial to the desired ”Ω” position. If the
value to be measured is unknown, set the
dial to the highest measurement range then
reduce the range according to the reading
until correct. Contact the probe with the
source of the resistance then read the figure
off the display. If the resistor to be measured
is connected to a circuit, switch of the power
source and discharge the capacitors before