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Microtest Power Analyzer 7140
  • Microtest Power Analyzer 7140
  • Microtest Power Analyzer 7140
  • Microtest Power Analyzer 7140

Microtest Power Analyzer 7140

7140

Specifically designed for single-phase AC/DC power measurement and analysis.

  • Ultra-High Measurement Accuracy ±0.05%
  • 100th-Order Harmonic Analysis
  • Low-pass / High-pass / Band-pass Filter Functions
  • High-Speed 500kSPS Sampling Rate
  • Simultaneous AC+DC Measurement and Display
  • Rated Direct Input Voltage: 800V / Input Current: 30A
  • DC, 0.2Hz~100kHz Voltage/Current Measurement Bandwidth 
Quantity

Description

Features

  • Ultra-High Measurement Accuracy ±0.05%
  • 100th-Order Harmonic Analysis
  • Low-pass / High-pass / Band-pass Filter Functions
  • High-Speed 500kSPS Sampling Rate
  • Simultaneous AC+DC Measurement and Display
  • Rated Direct Input Voltage: 800V / Input Current: 30A
  • DC, 0.2Hz~100kHz Voltage/Current Measurement Bandwidth 
  • 4.3” Color Multifunctional Digital & Graphical LCD Display
  • Three Graphical Display Modes (Waveform / Trend / Bar Graph)
  • Automatic Integration up to 10,000 Hours with Simultaneous Harmonic Analysis
  • Minimum Current Range of 5mA & Power Resolution of 10μW
  • Supports Comparison Mode with Upper/Lower Limit PASS/FAIL Judgment

MICROTEST 7140 Power Analyzer is designed for single-phase AC/DC power measurement and analysis.

It features an exclusive Super Filter Function (High-pass / Low-pass / Band-pass), supporting a wide measurement bandwidth from DC, 0.2Hz to 100kHz with a high-speed 500kSPS sampling rate. With ±0.05% basic power accuracy, it offers precise measurements on key power parameters.

The compact unit comes with a 4.3” TFT LCD displaying both numeric and graphical data. It supports direct input up to 800V and 30A, with 100-order harmonic analysis and simultaneous integration measurement for enhanced efficiency. It supports low standby power testing with a 5mA current range and 10μW power resolution. Users can view waveform, bar, and trend charts, and display 4/8/16 parameters in Meter mode, including max/min monitoring. A comparator mode is also available for PASS/FAIL judgment based on user-defined thresholds.

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Specifications

Selection

Model 7140 Powar Analyzer 7130 Power Meter
Frequency Range D C , 0 . 2H z~10 0 k H z D C , 0 . 2H z~10 0 k H z
Basic Measurement Accuracy ±0 . 0 5 % ±0 . 0 5 %
Sampling Rate 5 0 0 k SP S 5 0 0 k SP S
Meter Mode ● ●
Harmonic Analysis 100th-order harmonic 50th-order harmonic
Voltage and Current Waveform Display ● ●
Power Trend Graph ● —
Harmonic Bar Char t ● —

Extensive Parameter Measurement

Voltage (VRMS/ VDC/ V+PK/ V-PK) Apparent Power（S）
Current (IRMS/ IDC/ I+PK/ I-PK) Reactive Power ( Q )
Frequency (VHZ/ IHZ) Phase Angle (DEG)
Power（P） Total Harmonic Distortion (THDV/ THDI/ THDW)
Crest Factor (CFV/ CFI) Maximum Current Ratio (MCR)
Power Factor（PF） Displacement Power Factor (DPF)

 Input

Input
Measurement range

Voltage

 Crest factor 3: 15V/ 30V/ 60V/ 150V/ 300V/ 600V
Crest factor 6: 7.5V/ 15V/ 30V/ 75V/ 150V/ 300V
Current: Direct input Crest factor 3: 5mA/10mA/20mA/50mA/100mA/200mA/0.5A/1A/2A/5A/10A/20A(Max30A)
Crest factor 6: 2.5mA/5mA/10mA/25mA/50mA/100mA/0.25A/0.5A/1A/2.5A/5A/10A
Current
External current sensor input		 Crest factor 3: 500mV/ 1V/ 2V/ 5V/ 10V
Input impedance Voltage Input resistance: Approx. 1.66MΩ
Input capacitance:Approx. 13pF (Parallel with the resistance)
Current
Direct input		 Crest factor 3: 5mA/10mA/20mA/50mA/100mA/200mA
Crest factor 6: 2.5mA/5mA/10mA/25mA/50mA/100mA		 Input resistance:Approx. 500mΩ+10mΩ(wire)
Input inductance:Approx. 0.1μH
Crest factor 3: 0.5A/1A/2A/5A/10A/20A
Crest factor 6: 0.25A/0.5A/1A/2.5A/5A/10A		 Input resistance: Approx. 5mΩ + 3mΩ(wire)
Input inductance: Approx. 0.1μH
Current
External current sensor input		 Crest factor 3: 0.5V/1V/2V/5V/10V Input resistance: Approx. 10kΩ
Continuous maximum
allowable input		 BNC Max AC 10V
Voltage Peak value 1131V
Current Crest factor 3: 5mA/10mA/20mA/50mA/100mA/200mA
Crest factor 6: 2.5mA/5mA/10mA/25mA/50mA/100mA		 Maximum current: 0.9A
Crest factor 3: 0.5A/1A/2A/5A/10A/20A
Crest factor 6: 0.25A/0.5A/1A/2.5A/5A/10A		 Maximum current: 30A
Line filter Select OFF or ON(cutoff frequency at 500Hz/5kHz/100kHz), THD ON(cutoff frequency at 500Hz/ 5kHz)
Frequency filter Select OFF or ON(cutoff frequency at 500Hz)
A/D converter Simultaneous conversion of voltage and current inputs
Resolution: 16bits, Maximum conversion rate: 500kSPS

 Voltage/ Current/ Active Power Accuracy

Voltage/ Current/ Active Power Accuracy

 

 

Voltage and Current
Accuracy

 Accuracy   DC DC Accuracy ±0.05% reading ± 0.05% of range
0.2Hz ≦ f < 45Hz ±(0.1% of reading + 0.1% of range)
45Hz ≦ f ≦ 66Hz ±(0.05% of reading + 0.05% of range)
66Hz < f ≦ 1kHz (0.1% of reading + 0.1 % of range)
1kHz < f ≦ 10kHz ±([{0.07×(f)}% of reading] + 0.3% of range )
10kHz < f ≦ 100kHz ±(0.4 % of reading + 0.4 % of range)±[{0.04×(f–10)}% of reading]
Frequency
range		 Data update interval Measurement Frequency Range
0.05s 40Hz ~ 100kHz
0.1s 20Hz ~ 100kHz
0.2s 10Hz ~ 100kHz
0.25s 8Hz ~ 100kHz
0.5s 5Hz ~ 100kHz
1s 2Hz ~ 100kHz
2s 1.5Hz ~ 100kHz
5s 0.5Hz ~ 100kHz
10s~60mins 0.2Hz ~ 100kHz

Active Power

Accuracy

 Requirements Same as the conditions for voltage and current. Power factor: 1
Accuracy DC ±(0.05% reading ± 0.05% of range)
0.1Hz ≦ f < 45Hz ±(0.2% of reading + 0.2% of range)
45Hz ≦ f ≦ 66Hz ±(0.05% of reading + 0.05% of range)
66Hz <f ≦ 1kHz ±(0.1% of reading + 0.1 % of range)
1kHz <f ≦ 10kHz ±(0.1% of reading + 0.2% of range)± [{0.06×(f)}% of reading]
10kHz < f ≦ 100kHz ±(0.4 % of reading + 0.4 % of range)±[{0.07×(f–10)}% of reading]

 Integration

Integration
Mode Manual integration mode
Timer Automatically stop integration by setting a timer
Selectable range: 0h00m00s ~ 9999h59m59s(0h00m00s, automatically sets to manual integration mode)
Count overflow WP: 999999MWh/-99999MWh, q: 999999MAh/-99999MAh
Accuracy ±(Power accuracy (or current accuracy) + 0.05% of reading) (fixed range)
*In auto-range mode, measurement is not performed during range switching. The first measurement after switching and
the non-measurement period are included in calculations
Range setting Auto range or fixed range for Integration is available.
*Refer to the "Voltage, Current, and Power Measurement" section for range switching.
Valid Frequency Ranges for Integration Active power: DC to 100 kHz
Current: DC to 100 kHz
Timer accuracy ±0.02%

 Harmonic

Harmonic
Measured item 1~100 {Voltage, Current, Power, Voltage Ratio, Current Ratio, Power Ratio, Voltage Phase Angle, Current Phase Angle},
and all measurement items when THD is not enabled
Method PLL synchronization method with Discrete Fourier Transform for harmonic analysis
Frequency range Fundamental frequency of the PLL source is in the range of 20Hz ~ 480Hz
PLL source Select voltage or current of each input element
DFT data length 4096
Accuracy 20Hz ≦ f < 45Hz ±(0.2% of reading + 0.2% of range)
45Hz ≦ f ≦ 66Hz ±(0.05% of reading + 0.05% of range)
66Hz < f ≦ 1kHz ±(0.1% of reading + 0.1 % of range)
1kHz < f ≦ 10kHz ±(0.1% of reading + 0.2% of range)± [{0.06×(f)}% of reading]
10kHz < f ≦ 48kHz ±(0.4 % of reading + 0.4 % of range)±[{0.07×(f–10)}% of reading]

External Current Sensor Input

Measurement range：Crest factor 3: 0.5V/ 1V/ 2V/ 5V/ 10V

MICROTEST 7140 provides a maximum input of 800V and 30A. For current measurement needs exceeding 30A, voltage input-type current
clamps or current sensors can be purchased for testing.

High Current Measurement Solution
Clamp- on Tr ans f ormer Cur r ent Sensor

 

 

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AC 100A/ 1V AC 500A/ 4V
Bandwidth 5kHz Bandwidth 50kHz

 System

Supply voltage 100VAC~240VAC, 50~60 Hz
Power consumption 30VA MAX
Display 4.3"TFT, 800*480
Remote Control Input/Output Signal USB、RS-232、ETHERNET 10/100M
Memory USB disk、Embed flash
Operating environment Temperature: 13°C to 40°C
Humidity: < 80%RH
Weight 2.9kg
Dimensions 214x115x300mm

 

Product Details
7140