User Manual

14
2. AC Voltage Measurement
Range Resolution Accuracy
400.0mV 0.1mV ±(1.2%+3LSD)
4.000V 1mV
±(1.0%+3LSD)40.00V 10mV
400.0V 100mV
600V 1V ±(1.2%+3LSD)
Note: Manual range only for 400.0mV range.
Input impedance: Around 10MΩ
Frequency response: 45Hz ~ 400Hz
AM-520 : Average sensing, rms indication.
AM-530 : True RMS.
Overload protection: 600Vrms
3. Resistance Measurement
Range Resolution Accuracy
400.0Ω 0.1Ω ±(1.2%+2LSD)
4.000kΩ 1Ω
±(1.0%+2LSD)40.00kΩ 10Ω
400.0kΩ 100Ω
4.000MΩ 1kΩ ±(1.2%+2LSD)
40.00MΩ 10kΩ ±(1.5%+5LSD)
400Ω range: Measured value = (Measured display value – Short-circuiting
value of probe)
Open circuit voltage: Around 0.5V
Overload protection: 600Vrms
4. : Circuit ON/OFF : Diode measurement
Range Resolution Accuracy
0.1Ω
Open circuit voltage is around 0.5V.
Resistance >150Ω, buzzer will not sound.
Resistance ≤10Ω, buzzer will sound.