Elenco Electronics ST-3030, Инструкция оператора

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Duty Cycle
0.1%~99.9%: ±(2.0% +2) Frequency lower than 10kHz
Sensitivity: sine wave 0.6V rms
Overload Protection: 200VDC or AC rms
Temperature
NiCr-NiSi sensor
Overload Protection: 250VDC or AC rms
9. Operation
DC and AC Voltage Measurement
1. Connect the black test lead to the “ COM ” socket and the red test
lead to the “ V
Ω
Hz ” socket.
2. Set the selector switch to the desired “ V
~
” position.
3. Press the “ SELECT ” button to choose the “ DC ” or “ AC ”
measurement.
4. Measure the voltage by touching the test lead tips to the test
circuit where the value of voltage is needed.
5. Read the result on the LCD panel.
6. With the meter on the AC range, press the “ Hz/DUTY ” button to
measure the frequency or duty cycle.
DC Current Measurement
1. Set the selector switch to the desired “A ” position.
2. Zero the reading by pressing the “ REL (DCA ZERO ADJ)
button.
3. Disconnect the test leads from the meter.
4. Clamp the jaws around the one conductor to be measured.
Center the conductor within the jaw useing the centering mark as
guides.
5. Read the result on the LCD panel. The arrow on the jaw
indicates the direction of positive current flow (positive to
negative).
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Range Accuracy Resolution
O F
–4~302 O F ±(5 O F + 2)
1 O F
302~1472 O F ±(3% + 2)