2. Response for ACV: RMS measure, calibrated in rms of
sine wave.
3. Overload Protection: 1000V dc or 1000V ac rms.
4. Input Impedance (Nominal): DC voltage: >10M
; AC
voltage: >10M
4.2.2 Frequency
Logic frequency (1Hz-1MHz)
Range
Resolution
Accuracy
99.99Hz
0.01 Hz
±(0.1% of rdg+3digits)
999.9Hz
0.1 Hz
9.999kHz
0.001kHz
99.99kHz
0.01kHz
999.9kHz
0.1kHz
Linear frequency
（
6HZ~10KHZ
）
Range
Resolution
Accuracy
99.99Hz
0.01 Hz
±(0.05% of rdg+8digits)
999.9Hz
0.1 Hz
9.999kHz
0.001kHz
Above accuracies can be guaranteed within 10%~100% of
the full range.
