Mastech MS8250A Operation Manual page 7

MS8250A/B Digital Multimeter
Specification
3.2.8 Frequency
3.2.8.2 Pass Hz grade:
Measuring Resolution
range
5Hz 0.01Hz
50Hz 0.1Hz
500Hz 0.001kHz
5kHz 0.01kHz
50kHz 0.1kHz
500kHz 1kHz
5MHz 10kHz
Overload protection: 250V DC or AC (RMS) - measurement signal: Vpp3V
AC signal
3.2.8.3 Duty ratio
Measuring range Resolution
10 - 95% 0.1%
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Accuracy
(0.5% reading + 2 digits)
Accuracy

2.0%
MS8250A/B Digital Multimeter
Specification
3.2.9 DC current
Measuring range Resolution
400A 0.1A
4000A 1A
40mA 10A
400mA 100A
20A 10mA
Overload protection:
A and mA grade: Fuse F400mA/250V, A grade: Fuse F20A/250V.
When measuring current is greater than 5A, the continuous measurement time
should not be more than 10 seconds. After measuring, disconnect the current.
3.2.10 AC current
Measuring range Resolution
400A 0.1A
4000A 1A
40mA 10A
400mA 100A
20A 10mA
Overload protection:
A and mA grade: Fuse F600mA/250V, A grade: Fuse F20A/250V.
- Frequency range: 50 ~ 60Hz
- Response: true RMS
When measuring current is greater than 5A, the continuous
measurement time should not be more than 10 seconds. After
measuring, disconnect the current.
Accuracy

(0.8% reading + 2 digits)

(1.2% reading + 2 digits)
Accuracy
(1.5% reading + 2 digits)
(3.0% reading + 5 digits)
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