Mastech MS2025A, Руководство по эксплуатации

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(1) Frequency measurement range is 10Hz~1kHz
When the frequency to be tested is less than 10Hz,the
LCD will show “00.0” Masuring frequency higher than
10kHz is possible, but ccuracy is ot guarantee
(2) Duty ratio measuring range is 10 ~ 95%.
(3) “ ”means that maximum input voltage is 750V AC
(RMS).
Note:
3) In HZ/DUTY Measurement Mode:
Electric shock hazard.
Pay special attention to avoid shock when
measuring high voltage.
Don't input voltage more than AC 250V RMS.
Warning
(1) Insert black probe to COM jack, insert red probe to
NPUT ack.
(2) Transfer switch is placed to position HZ.
(3) Connect the probe with signal or both ends of load in
parallel for measurement.
(4) Read on the LCD.
(5) Pressing
“Hz/%” again can enter duty ratio measuring
state.
Frequency measurement range is 10Hz~1kHz When the
frequency to be tested is more than 10Hz,the LCD will
show “00.0”measuring frequency higher than 10 kHz is
possible, but accuracy is not guarantee
Note:
4.13 Resistance Test
Electric shock hazard.
When measuring circuit impedance,
determine that the power supply is
disconnected and the capacitor in the circuit
is completely discharged.
Warning
1) Insert black probe to COM jack, insert red probe to
INPUT jack.
2) Place measuring range switch to position. At this
time, the meter is in the measurement state.
3) Connect the probe to the both ends of resistor or circuit
to be tested for measurement.
4) LCD will show readings.
Ω