Model |
7110 |
7120 |
Frequency Measurement Mode |
To achieved stable base frequency measurement (variation less than 1%) by voltage or current (non-inverter) |
Frequency Range |
DC, 15Hz~10KHz |
DC, 15Hz~100KHz |
Data Length |
Dual 4096×16 RAM for voltage & current |
ADC Resolution |
16 bits |
Sampling Rate |
AC 50Hz/60Hz basic sampling rate 100 KSPS /120 KSPS |
Arithmetic Precision |
Watt/VRMS/IRMS/MEAN/PF/Deg/Line filter 32bits |
Frequency Filter |
500Hz cut off, digital chip filter based on 25MHz |
Signal Filter |
500Hz-3db digital filter based on Butterworth 50Hz-0.03% reading,
60Hz-0.05% reading |
Frequency
Acquisition Mode |
Voltage / current 100MHz baseband digital dynamic meter chip |
Phase Lead Detection |
Subject to the current, analog/digital hybrid detecting (error less than 5 degrees) |