POWER ANALYZER PW8001
DC, 0.1 Hz to 5 MHz, 3-phase 4-wire, High Precision Power Analyzer for Motor and Inverter Efficiency Analysis
Product Video
The PW8001 sets a new benchmark for complete power analysis solutions with Hioki being the only manufacturer that offers industry-leading power analyzers and a wide portfolio of high-accuracy current sensors both developed and manufactured by Hioki. This enables to align their performance and results in more accurate and stable measurements from DC to high frequencies and low power factor measurements thanks to functions like the automatic phase shift correction.
Upcoming industry challenges are anticipated with the ability to measure even large currents at voltages up to 1500 V, 15 MS/s sampling rate and multi-channel measurement target applications using SiC/GaN semiconductors from automobile electrification, smart grids and reactors to renewable energy supply sources.
Key Features
- World-class measurement accuracy: Basic accuracy ±0.03%, DC accuracy ±0.05%, 50 kHz accuracy 0.2% (*1)
- Accurate capture of power fluctuations caused by high-speed switching: Sampling performance 18-bit, 15 MHz, Noise Resistance (CMRR) 110 dB, 100 kHz (*1)
- Up to 8 power channels optimizing your measurement: 8-channel power measurement
- Accurately measure high-frequency, low-power-factor power: Current sensor automatic phase correction function (*2)
- Simultaneous analysis of 4 motors: 4-motor/2-motor simultaneous analysis function
- Integration of measurement data into CAN networks: CAN or CAN FD output function
- Safe evaluation of increasingly high-voltage solar inverters: 1500 V DC CAT II / 1000 V DC CAT III (*3)
- Earning Japan Calibration Service System (JCSS) Certification for DC Power Measurement. (*4)
- *1:When using the 15MS/S Input Unit U7005
- *2:When used with a current sensor with automatic phase correction functionality
- *3:When using the 2.5MS/S Input Unit U7001
- *4: JCSS is standard that is satisfy the requirements of the ISO/IEC 17025 international standard.
Learn more
Model No. (Order Code)
PW8001-01 | |
---|---|
PW8001-02 | D/A output |
PW8001-03 | CAN or CAN FD output |
PW8001-04 | *Scheduled Release Date: Optical link interface |
PW8001-05 | *Scheduled Release Date: D/A output, optical link interface |
PW8001-06 | *Scheduled Release Date: CAN or CAN FD output, optical link interface |
PW8001-11 | Motor analysis |
PW8001-12 | Motor analysis, D/A output |
PW8001-13 | Motor analysis, CAN or CAN FD output |
PW8001-14 | *Scheduled Release Date: Motor analysis, optical link interface |
PW8001-15 | *Scheduled Release Date: Motor analysis, D/A output, optical link interface |
PW8001-16 | *Scheduled Release Date: Motor analysis, CAN or CAN FD output, optical link interface |
Providing the ultimate power analyzer for use by all engineers pursuing power conversion efficiency
World-class measurement accuracy
- Basic accuracy ±0.03%, DC accuracy ±0.05%, 50 kHz accuracy 0.2% (*1)
Evaluating power conversion efficiency requires the ability to accurately measure power in every band, from DC to high frequencies. The PW8001 delivers exceptional measurement accuracy not only for 50/60 Hz, but also across a broad frequency band, including for DC and at 50 kHz. This allows it to accurately evaluate power conversion efficiency which often involves measuring multiple frequencies.
Accurate capture of power fluctuations caused by high-speed switching
- Sampling performance 18-bit, 15 MHz (*1)
- Noise Resistance (CMRR) 110 dB, 100 kHz* (*1)
Evaluating power conversion efficiency requires the ability to accurately measure power in every band, from DC to high frequencies. The PW8001 delivers exceptional measurement accuracy not only for 50/60 Hz, but also across a broad frequency band, including for DC and at 50 kHz. This allows it to accurately evaluate power conversion efficiency which often involves measuring multiple frequencies.
Up to 8 power channels optimizing your measurement
- 8-channel power measurement
Increasingly, hardware like electric vehicle (EV) drive systems that use dual inverters and electric power interchange systems in smart homes are adopting multi-circuit designs in order to utilize energy effectively. A single PW8001 can measure 8 channels of power data, allowing equipment with 8 measurement points for power such as dual motors as well as other equipment with multiple circuits to be evaluated in one stroke.
PMSM online parameter measurement (*2)
- Electrical angle measurement function
In order to implement fine control of a permanent magnet synchronous motor (PMSM), it’s necessary to assess the motor’s characteristics under actual operating conditions. The PW8001’s electrical angle measurement function can perform voltage and current advance measurement, which is necessary in order to implement vector control of the dq coordinate system. The instrument can calculate Ld and Lq values from electrical angle measurements and ascertain motor parameters under actual operating conditions.
Compensation of torque meter measurement error (*2)
- Dual torque value correction functions
Torque meter measurement error has a substantial impact on motor analysis. The PW8001 can perform calculations using a correction table based on user-defined values for nonlinear compensation and friction compensation. The instrument can accurately analyze high-efficiency motors as well.
Safe evaluation of increasingly high-voltage power conditioners
- 1500 V DC CAT II, 1000 V DC CAT III (*3)
Renewable energy generation systems are being engineered to use increasingly high voltages in order to reduce equipment construction costs and transmission loss. Evaluating generation systems requires instruments that are capable of high-voltage measurement. The PW8001 Input Unit U7001 can safely measure directly input high voltages of up to 1500 V DC (CAT II) and 1000 V DC (CAT III). (The Voltage Cord L1025, which can accommodate 1500 V DC [CAT II] and 1000 V DC [CAT III], is also available.)
Analysis of power loss in reactors
- High-accuracy measurement of high-frequency, low-power-factor power
In order to improve power conversion efficiency, it’s necessary to assess power loss in reactors. The lower the reactor’s loss, the lower the power factor, making accurate measurement difficult. The U7005’s outstanding high-frequency characteristics and noise resistance make it an extremely effective tool for analyzing power loss in high-frequency, low-power-factor reactors.
- *1:When using the 15MS/S Input Unit U7005
- *2:Models equipped with motor analysis function only
- *3:When using the 2.5MS/S Input Unit U7001
Basic specifications
Measurement lines | 1-phase-2-wire, 1-phase-3-wire, 3-phase-3-wire, 3-phase-4-wire |
---|---|
No. of PW8001 input units | Max. 8 units (mix and match) |
Type of input unit | U7001 2.5 MS/s INPUT UNIT U7005 15 MS/s INPUT UNIT |
Measurement frequency band | U7001: DC, 0.1 Hz to 1 MHz U7005: DC, 0.1 Hz to 5 MHz |
Sampling | U7001: 2.5 MHz, 16-bit U7005: 15 MHz, 18-bit |
Data update rate | 10 ms, 50 ms, 200 ms |
Accuracy for power (U7001) | 50/60 Hz: 0.02% of reading + 0.05% of range DC: 0.02% of reading + 0.05% of range 50 kHz : 0.4% of reading + 0.1% of range |
Accuracy for power (U7005) | 50/60 Hz : 0.01% of reading + 0.02% of range DC : 0.02% + 0.03% of reading of range 50 kHz: 0.15% of reading + 0.05% of range |
Measurement range | Voltage: 6 V, 15 V, 30 V, 60 V, 150 V, 300 V, 600 V, 1500 V Current: (probe1) 100 mA to 2 kA, (probe2) 100 mA to 50 kA (Range configuration changes depending on the current sensor used, U7001 only for Probe2.) |
Measurement parameters | voltage (U), current (I), active power (P), apparent power (S), reactive power(Q), power factor (λ), phase angle (φ), voltage frequency(fU), current frequency(fI), efficiency (η), loss (Loss), voltage ripple factor (Urf), current ripple factor (Irf), current integration (Ih), power integration (WP), voltage peak (Upk), current peak (Ipk) - Harmonics measurement: maximum analysis order 500th - Waveform recording: recording capacity 5M words × ( [voltage/current] ) × - No. of channels + motor waveforms) - Motor analysis (option): voltage, torque, RPM, frequency, slip, motor power - FFT analysis* - Flicker measurement* |
Calculation function | Efficiency and loss calculations, User-defined calculations*, Delta conversion, Current sensor automatic phase shift calculation |
External interface | USB flash drive, LAN, GP-IB, RS-232C, external control, optical link*, BNC sync.*, CAN or CAN FD* |
Power supply | 100 V to 240 V AC, 50/60 Hz, 230 VA |
Dimensions and mass | Approx. 430 mm (16.93 in) W × 221 mm (8.70 in) H × 361mm (14.21 in) D, Approx. 14kg (493.84 oz) |
Included accessories | - Power cord ×1 - Instruction Manual ×1 - GENNECT One (PC applications) CD ×1 - D-sub 25-pin connector ×1 (PW8001-02, -05, -12, -15 only) |
- *To be supported in Ver. 2.00
Factory-installed option (2)
Input units must be specified at the time of ordering

Factory-installed option
- Basic accuracy for 50/60 Hz: Power ± 0.07%
- Sampling frequency: 2.5 MHz
- ADC resolution: 16-bit
- Measurement frequency band: DC, 0.1 Hz to 1 MHz
- Maximum input voltage: 1000 V AC, 1500 V DC, ±2000 V peak
- Maximum rated line-to-ground voltage: 600 V AC/1000 V DC CAT III, 1000 V AC/1500 V DC CAT II

Factory-installed option
- Basic accuracy for 50/60 Hz: Power ± 0.03%
- Sampling frequency: 15 MHz
- ADC resolution: 18-bit
- Measurement frequency band: DC, 0.1 Hz to 5 MHz
- Maximum input voltage: 1000 V AC, 1000 V DC, ±2000 V peak
- Maximum rated line-to-ground voltage: 600 V CAT III, 1000 V CAT II
Current Measurement (High accuracy pass-through 2000 A Max.) (6)
Current Measurement (High Accuracy Clamp 1000 A Max.) (5)
Current Measurement (General Use Clamp 20 A/200 A) (1)
Current Measurement (Direct Connection 50 A) (0)
Current Summing (Measuring Large Current 8000 A Max.) (2)

ME15W (12 pin) terminal to ME15W (12 pin) terminal, 1 m (3.28 ft) length (for connecting CT9557 total output to PW6001 or PW3390 only)
Voltage Measurement (12)

1000 V specifications, Black/ Red, 3 m (9.84 ft) length, Alligator clip ×2

1.2 m (3.94 ft) length

Banana plug - banana plug, 1.5 m (4.92 ft) length, red/black each 1

Red/ Yellow/ Blue/ Gray each 1, Black 4, 3m (9.84ft) length, Alligator clip ×8

Attaches to the tip of the L4930/4940, CAT IV 600 V, CAT III 1000 V

Banana branch-banana, Red: 1, 0.5 m (1.64 ft) length, for branching from the L9438s or L1000s, CAT IV 600 V, CAT III 1000 V

Banana branch-banana, Black: 1, 0.5 m (1.64 ft) length, for branching from the L9438s or L1000s, CAT IV 600 V, CAT III 1000 V

Attaches to the tip of the banana plug cable, Red/Black: 1 each, 185 mm (7.28 in.) length, CAT II 1000 V

1500 V DC CAT II, 1 A, 1000 V CAT III , 1 A, banana - banana (red, black each1), alligator clip, approx. 3 m (9.84 ft) length

3.0 m

1.6 m
Connection (14)

9 pin - 9 pin, cross, 1.8 m (5.91 ft) length

Cord has metallic BNC connectors at both ends, use at metallic terminal, 1.5 m (4.92 ft) length

9 pin - 9 pin straight, 1.5 m (4.92 ft) length

2 m (6.56 ft) length

Convert PL23 (10-pin) terminal to ME15W (12-pin) terminal

Receiving side BNC (female), output banana (male) *Not compatible with older generation Memory Hicorders with banana input terminals

Straight Ethernet cable, supplied with straight to cross conversion adapter, 5 m (16.41 ft) length

For the MR8904(MR8875), 8910, Unprocessed on one end, 1.8 m (5.91 ft) length

ME15W (12 pin) terminal to ME15W (12 pin) terminal, 1 m (3.28 ft) length (for connecting CT9557 total output to PW6001 or PW3390 only)

Cord has insulated BNC connectors at both ends, 10 m (32.81 ft) length

Cord has insulated BNC connectors at both ends, 3.0 m (9.84 ft) length

Cord has insulated BNC connectors at both ends, 1.6 m (5.25 ft) length

50/125 μm wavelength multimode fiber, 10 m (32.81 ft) length
Build-to-order (0)
- D/A Output Cable L3000: D-sub 25-pin/BNC (male) 20-channel conversion cable
- BNC Terminal Box Z5200: D-sub 25-pin/BNC (female) 20-channel conversion box
- Carrying Case C8001: Hard type with casters
- Rackmount Fittings Z5300: For EIA standard rack
- Rackmount Fittings Z5301: For JIS standard rack
- Special-order calibration of the Input Unit U7001: To guarantee DC voltage and DC active power measurement accuracy when (1000 V < DC ≤ 1500 V)
- Phase shift correction in power analysis: It takes two to tango
- Evaluation of the Efficiency of Wireless Power Transfer (WPT) Systems
- Evaluation of the Efficiency of Inverters That Use SiC Power Devices in Industrial Equipment
- Evaluation of Loss in Transformers and Reactors Designed for Use in High-Voltage Circuits
- Evaluation of the Efficiency of Inverters That Use SiC Power Devices in Electrical Railways
- Evaluation of the Efficiency of Solar Inverters That Support High-Voltage Input
- Evaluating the Performance of AWD Dual-motors