Prokit's Industries MT-1620 - Manual (Page 19)

Overload Protection: 250V DC or rms AC
- By V Range:
Measurement Range: 0 ~ 40kHz
Input Voltage Range: 0.5V – 600V rms AC
(Input voltage must be enlarged with increasing
frequency under measurement)
Input Impedance: 10M 
Max. Input Voltage: 600V DC or rms AC
- By mA Range:
Measurement Range: 0 ~ 40kHz
Input Current Range: 100mA – 400mA rms AC
(Input Current must be enlarged with increasing
frequency under measurement)
Max. Input Current: 400mA DC or rms AC
Overload Protection: F 500mA/250V fuse (quick
acting).
NOTE:
When measuring frequency, the range by Hz
range is larger than by Hz of Voltage range or
current range, but the value measured beyond the
range is just for reference.
3.2.8 Duty Cycle
Range Resolution Accuracy
0.1 - 99.9% 0.1% ±3.0%
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