Mastech MY70 User Manual

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4.2. Accuracy indicators
Accuracy: ± ( % reading + word) with one year of warranty.
Reference conditions: environmental temperature is from
18 °C to 28 °C, relative humidity is not more than 80%.
4.2.1 DC voltage
Measuring range
Resolution
Accuracy
200mV
0.1mV
2V
20V
200V
600V
1mV
10mV
100mV
1V
±(0.8% of reading + 2digits)
±(0.5% of reading + 2digits)
Input impedance: 10MΩ
Maximum input voltage: 600Vdc or 600Vac RMS, 250Vdc
or ac RMS with the measuring range of 200mV.
4.2.2 AC voltage
Measuring range
Resolution
Accuracy
200mV
(only for MY70)
0.1mV
2V
20V
200V
600V
1mV
10mV
100mV
1V
±(1.2% of reading + 3digits)
±(0.8% of reading + 3digits)
±(1.2% of reading + 3digits)
Input impedance: 10MΩ
Maximum input voltage: 600Vdc or 600V ac RMS, 250Vdc
or ac RMS with the measuring range of 200mV.
Frequency response: 40Hz-400Hz sine wave RMS
(average response)
The frequency response is 200Hz for 600V
4.2.3 Frequency (only for MY74, MY74B)
Measuring range
Resolution
Accuracy
20kHz
10Hz
±(2.0% of reading + 5digits)
Input voltage range: 200mV-10V ac RMS
Overload protection: 250V dc or 250V ac RMS
4.2.4 Resistance
Measuring range
Resolution
Accuracy
200Ω
2kΩ
20kΩ
200kΩ
2MΩ
20MΩ
200MΩ
0.1Ω
1Ω
10Ω
100Ω
1kΩ
10kΩ
100kΩ
±(0.8% of reading + 3digits)
±(1.0% of reading + 2digits)
±(6.0% of reading + 10digits)
±(0.8% of reading + 2digits)
Overload protection: 250V dc or 250V ac RMS
Open circuit voltage: below 700mV
4.2.5 Diode
Function
Measuring range
Resolution Test environment
Diode Test
1V
0.001V
Test current: about 1mA.
Open circuit voltage:
about 2.8V.
Display approximation
of diode forward voltage
drop.
Overload protection: 250V dc or 250V ac RMS

Mastech MY70 Specifications

General

Brand	Mastech
Model	MY70
Category	Multimeter
Language	English