This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
ITEMLIST
Products Infomation
- Products by Category
- Electronic measuring instruments
- Power supplies / Electronic load devices
- MICROTEST Power Analyzer 7140
Measures single-phase AC/DC power with ±0.05% accuracy, DC–100kHz bandwidth, and 500kSPS sampling, with clear numeric and graphical display options.
MICROTEST 7140 Power Analyzer supports up to 800V and 30A direct input, with 100-harmonic analysis capability. Independent measurement modules allow simultaneous harmonic and integration tests, enabling real-time power quality monitoring and improving test efficiency.
For standby power tests, it measures currents as low as 5mA with 10μW resolution. The graphical interface offers waveform, bar, and trend displays. In Meter mode, users can view up to 16 parameters and monitor max/min values. The comparison mode provides PASS/FAIL results based on preset limits, making it ideal for production, R&D, and quality control applications.
Power Analyzer / Power Meter
Model:
7140 / 7130
Maker:
MICROTEST
Features
- Ultra-High Measurement Accuracy ±0.05%
- High-Speed 500kSPS Sampling Rate
- Rated Direct Input Voltage: 800V / Input Current: 30A
- DC, 0.2Hz~100kHz Voltage/Current Measurement Bandwidth
- 100th-Order Harmonic Analysis (Numerical Display / Bar Graph Analysis)
- 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
- Automatic Switching Between Low and High Current Measurement Modes (Eliminates Manual Wiring)
- Simultaneous AC+DC Measurement and Display
- Supports External Current Sensor Input (High-Current Testing Solution)
Selection Chart
| Power Measurement Solutions | 7140 Power Analyzer | 7130 Power Meter |
| Frequency Range | DC, 0.2Hz~100kHz | DC, 0.2Hz~100kHz |
| Basic Measurement Accuracy | ±0.05% | ±0.05% |
| Sampling Rate | 500kSPS | 500kSPS |
| Meter Mode | ● | ● |
| Harmonic Analysis | 100th-order harmonic | 50th-order harmonic |
| Voltage and Current Waveform Display | ● | ● |
| Power Trend Graph | ● | – |
| Harmonic Bar Chart | ● | – |
MICROTEST 7140 Power Analyzer
Specification
| Measurement Parameters | |
| Voltage (VRMS/ VDC/ V+PK/ V-PK) | Reactive Power (Q) |
| Current (IRMS/ IDC/ I+PK/ I-PK) | Frequency (VHZ/ IHZ) |
| Power (P) | Crest Factor (CFV/ CFI) |
| Power Factor (PF) | Apparent Power (S) |
| Phase Angle (DEG) | Total Harmonic Distortion (THDV/ THDI/ THDW) |
| Maximum Current Ratio (MCR) | Displacement Power Factor (DPF) |
| Voltage, Current, and Active Power Measurements | |
| Measurement | Digital sampling method |
| Crest factor | 3 or 6 |
| Wiring system | Single-phase, two-wire (1P2W) |
| Range select | Select manual or auto ranging |
| Display mode switching | RMS, VOLTAGE MEAN, DC |
| Measurement synchronization source | Select voltage, current, or the entire period of the data update interval for the signal used to achieve synchronization during measurement |
| Line filter | Select OFF or ON (cutoff frequency at 500Hz, 5kHz, 100kHz) |
| Peak measurement | Measures the peak (max, min) value of voltage, current, or power from the instantaneous voltage, instantaneous current, or instantaneous power that is sampled |
| Voltage and Current Accuracy | |
| Accuracy | 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 | |
| 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 | |
| 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 |
| General | |
| 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 |
To view the pdf files, the Adobe Reader from Adobe Systems is required.