Microtest 71107120 Single-Phase Power Meter

Product Description:

MICROTEST’s single phase power meter 7110/7120 has the wave crest factor of the input current as CF3/CF9 and able to measure all the values within measuring ranges. They have the fastest auto-shift speed amongst other testers of the same level, and the measuring span can be locked on rapidly to perform accurate power consumption analysis. The measuring range of both PM7110/7120 are 0.001W~16KW, and they are able to measure AC power consumption containing DC and obtain power factors with higher accuracy while analyzing the current signals from devices with asymmetrical positive and negative waveforms. All the electronic devices on the market must comply with EU requirements for standby power consumption, and the manufacturers are making their effort to lower it as best as they can. PM7110/7120 are able to help the manufacturers to analyze power and energy consumption precisely and perform long-hours survey with a PC.

 

AC / DC Dual amp / watt-hour meter

Wide range 0.001W ~ 16KW

Connection software attached

Standby Power D.P.I. of 0.001W

With crest factor ratio display

Up to the 50 levels harmonic wave analysis capability

1000 sets of measurement data storage space

Product Specification:

Harmonics

 

 Analysis base   To achieved stable fundamental frequency analysis by voltage or current (non-inverter)

 Frequency Range          45Hz ~ 440Hz

 FFT Data Length             1024

 FFT Data Format            32 bits

 Measurement Projects 1-50 THD, 1-50 level voltage and current  V [n], A [n] 1-50 level voltage and current distortion percentage V [n%], A [n%] 1-50 level watts W [n] 1-50 level watts distortion percentage Watt W [n%] 1-50 level voltage and current angle DEG [n] Vrms，Irms，Watt， PF

Specification

 

Model Name     7110     7120

Power Supply    Voltage 100 ~ 240Vac

Frequency 50/60Hz

Display

Seven-segment display

 

Interface            RS232   RS232+GPIB

Flash Memory   6 Sets

Environment     Temperature:23℃±5℃   Humidity: 20%~80%

Dimension (W*H*D)     335x103x335 mm

Weight 1.85 Kg

Measurement bandwidth

 

DC 15Hz ~ 10KHz            DC 15Hz ~ 100KHz

Harmonic (Option)         Yes/NA Yes/NA

Model  7110-10K-HARM

7110-10K

 

7120-100K-HARM

7120-100K

 

Fixture  F71201 TEST BOX

Measurement Data

 

 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)

Range

 

 Current (fixed / auto)   0.01A、0.03A、0.1A、0.3A、1A、3A、10A、20A

 Voltage (fixed / auto)   10V、30V、100V、300V、600V

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]

F unit is 1KHz

When the L-FILTER sets as ON:45Hz~66Hz frequency range allowable error-0.03 %~-0.05 of reading

 

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 accurate value

**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

Maximum Power (W) value is determined by the highest range of voltage profile

 

DC ±0.2% reading ± 0.5% of range

15 Hz≦f

 

45 Hz≦f≦66 Hz ±(0.1% of reading + 0.1 % of range)

 

66 Hz

 

1 kHz

 

10 kHz

 

Incidental allowable error conditions

Signal filter error (AC)  

Frequencies between 45 to 66 Hz: Add 0.3% of reading

Frequency at 45 to 66 Hz: Add 1% of reading beyond

 

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

Situation 1: for 45 Hz

 

Situation 2: for 45 Hz>f or f >66 Hz

 

Add ±{(3.5 + 0.5 × f)% of VA} for up to 100 kHz as reference data

 

The unit for frequency f is kHz.

 

When the power factor is 0 < PF ≦error range

 

When 0

 

for 45 Hz≦f≦66 Hz. Add ± power reading *{tan(θ)*(0.5)}%

 

for f < 45 Hz, f >66 Hz. Add ± power reading *{ tanθ* (0.5×f+0.2) }%

 

Error within 12 months Add ±(0.5% of reading)

Parameters Measurement 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                

Applications

 

The measurements are utilized in environmental monitors, energy saving lamps, exchangeable power supplies, transformers, uninterruptible power systems, power tools, 3C electronic products, and home appliances, etc.