MICROTEST 7120 power meter provides a frequency bandwidth of 15Hz to 100kHz. It supports up to 0th order harmonic analysis and has a maximum crest factor of 9 (CF9) for current waveforms. It can measure various parameters related to power supplies, including power, voltage, current, power factor, phase, and more. It is suitable for AC/DC and DC/DC power products.
Selection
Model | 7110 | 7120 |
Frequency Range | DC, 15Hz~10KHz | DC, 15Hz~100KHz |
Harmonic (option) | ● / - | ● / - |
Measurement Parameters
Parameters | Range | Parameters | Range |
Vrms | 0.1V ~ 600V | PF | 0.000 ~ ±1.000 |
Vdc | 0.1V ~ 600V | Deg | -180°~ +180° |
Irms | 0.1mA ~ 20A | THD | 0.01% ~ 99.99% |
Idc | 0.1mA ~ 20A | Hz | 15Hz ~100kHz |
W | 0.01W ~16KW |
Measurement Range
Current (fixed/Auto) | 0.01A、0.03A、0.1A、0.3A、1A、3A、10A、20A |
Voltage (fixed/Auto) | 10V、30V、100V、300V、600V |
Harmonics SPEC
Analysis base | To achieved stable fundamental frequency analysis by voltage or current (non-inverter) |
Frequency Range 45Hz | 45Hz - 440Hz |
FFT Data Length | 1024 |
FFT Data Format | 32 bits |
Measurement Projects |
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SPEC
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 4096x16 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 |
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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) |
RMS/MEAN Mode Voltage & Current Accuracy (23℃ ±5℃ ) | |
>=15 Hz, f ≦ 45Hz | ±(0.1% of reading + 0.4% of range) |
>45 Hz, ≦ 66 Hz | ±(0.1% of reading + 0.1 % of range) |
>66 Hz, ≦ 1 kHz | ±(0.1% of reading + 0.2 % of range) |
>1 kHz, ≦ 10 kHz | ±(0.07*f % of reading + 0.3% of range) |
>10 kHz, ≦100 kHz | ±(0.5% of reading + 0.5% of range) ±[{0.04×(f–10)}% of reading] |
Funit is 1KHz |
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When the AC is measured, if the fundamental frequency exceeds 200Hz, the F-Filter is required to be turned off in order to measure the most **When the frequency range is more than 10KHz, the 7120 starts to support |
DC Mode Voltage & Current Accuracy (23℃ ±5℃ ) | |
10V~600V | ±0.2% reading ± 0.2% of range |
0.01A ~20A | ±{(0.2)% of reading + 0.2 % of range} ±offset |
To add up the OFFSET errors of various files during measuring the DC current |
Power (W) Accuracy (23℃ ±5℃ ) | |
AC power ranges (Auto or Manual)(40 ranges) range up to 16KW |
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DC ±0.2% reading ± 0.5% of range
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Incidental Allowable Error Conditions | |
Signal Filter Error (AC) |
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CF9 Error (DC) | Add range tolerance * 3 |
Accuracy Effect of the Phase Error of the Power | |
When the power factor PF is 0, the error range of Watt is
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Error within 12 months | Add ±(0.5% of reading) |
SYSTEM
Model |
Support Harmonics 7110-10k-HARM |
Support Harmonics 7120-100k-HARM |
Don't Support Harmonics 7110-10k |
Don't Support Harmonics 7120-100k |
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F71201 TEST BOX | ||
Built-in stroage | 6 Sets | |
Power Supply | Voltage | 100 ~ 240Vac |
Frequency | 50/60Hz | |
Power consumption | 300VA | |
Environment | Temperature | 23℃±5℃ |
Humidity | 20%-80%RH | |
Display | Seven-segment display | |
Dimension (W*H*D) | 227x101x300 mm | |
Weight | 1.85 Kg | |
Interface | RS-232 (7110)、RS232 + GPIB (7120) |