POWER ANALYZER PW4001

Portable 4-channel power analyzer with ±0.04% basic accuracy for vehicle power measurement

NEW

Precision and Portability Perfectly Combined

The PW4001 is a high-precision, portable 4-channel power analyzer that offers Hioki’s highest-ever DC accuracy of ±0.04%. Additionally, its measurement bandwidth extends up to 600 kHz, with accuracy specifications maintained across this entire frequency range, ensuring reliable performance from DC to high-frequency applications. Despite its portability, it delivers the measurement accuracy required in research and development as well as in production environments, making it equally suitable for field testing, laboratory evaluation, and production line inspection.

Key Features

  • Basic accuracy: ±0.04%
  • Operatable temperature range: -20°C to 50°C
  • Frequency bandwidth: DC, 0.1 Hz to 600 kHz
  • CAN / CAN FD output and input
  • Auto phase shift correction for Hioki current sensors

Model No. (Order Code)

PW4001-01
PW4001-02 D/A output
PW4001-03 Motor analysis
PW4001-04 External power source
PW4001-05 D/A output, Motor analysis, External power source

Lab-grade precision, Field-ready

From xEV fuel and energy consumption testing to DC-DC converter and inverter efficiency evaluation, as well as motor efficiency analysis, the PW4001 provides exceptional reliability and versatility, making it a new-generation portable power analyzer designed for a wide range of measurement scenarios.

Engineered for the tasks you face, wherever you work

Capture transient power changes with high precision

Evaluate motor and inverter efficiency with 1 ms data updates and 600 kHz bandwidth. Even transient power losses are measured accurately.
・Capture motor power fluctuations with millisecond precision
・Evaluate efficiency for high-frequency inverters
・Automatically detect charge and regeneration to calculate efficiency

Reduce setup time in drive range testing

Ensure accurate measurements even at -7°C. With direct CAN voltage input and flexible, vehicle-side installation, test setup is faster and safer.
・Accuracy maintained at -7°C. Install directly in cold chambers
・Use a compact setup near the vehicle and expand channels with synced units
・Acquire battery voltage via CAN, safe and simple

Use it on the road Designed for real-world driving tests

Measure power without vehicle modification. OBD-II input and 10.5 V to 28 V DC power supply make in-vehicle use easy.
・Operates from −20°C to +50°C, ready for harsh environments
・Run on DC power for easy in-vehicle installation
・Use OBD-II CAN bus for safe, real-time vehicle data acquisition

Ensure production quality with waveforms and numbers

Combining waveforms and numerical values ensures reliable, quantifiable quality in mass production.
・Verify efficiency with ±0.04% accuracy at DC and 50 Hz/60 Hz
・Direct voltage input up to 1500 V DC
・2.5 MHz sampling enables waveform evaluation of switching events

Half the Size, Maximum Precision

The slim design clamp current sensor ensures easy installation even in tight spaces.
Complex tasks in the engine room become simple and efficient, dramatically reducing preparation time for fuel efficiency and performance testing. Not only does it reduce setup time, but it also minimizes the risk of sensor damage from forced clamping between narrow spaces.
Fully compliant with the WLTP and SAE J1634 standards, it provides precise AC/DC current measurements up to 200 A with an impressive DC accuracy of 0.07%.

Basic specifications

Accuracy guaranteed for 6 months, multiply the 6-month accuracy by 1.25 to obtain the 1-year accuracy.
Measurement lines Single-phase 2-wire, single-phase 3-wire, three-phase 3-wire, three-phase 4-wire
Number of channels 4 (4 voltage, 4 current, isolated between each channel)
Measurement frequency bandwidth DC, 0.1 Hz to 600 kHz
Sampling 16 bit, 2.5 MHz
Data update rate 1 ms, 10 ms, 50 ms, 200 ms
Accuracy for power DC, 50/60 Hz: ±0.03 % reading ± 0.01 % range / 50 kHz: ±0.40 % reading ± 0.10 % range
Voltage measurement range 6 V, 15 V, 30 V, 60 V, 150 V, 300 V, 600 V, 1500 V
Current measurement range 40 mA to 2000 A (depends on current sensor)
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)
Harmonic measurement Wideband mode: max. analysis order of 500th
Waveform recording Recording capacity: up to 5 mega-words for any waveform (current, voltage, motor)
Motor analysis (option) Voltage, torque, RPM, frequency, slip, motor-power power spectrum analysis
Calculation function Efficiency-loss calculations, user-defined formula, delta conversion, current sensor automatic phase shift compensation
External interface USB flash drive, LAN, USB (function), external control, BNC sync., CAN or CAN FD
Power supplies 100 V to 240 V AC, 10.5 V to 28 V DC
Dimensions and weight 361 (W) × 176 (H) × 135 (D) mm (14.21 × 6.93 × 5.31 in), 4.6 kg (162.3 oz.)
Included accessories Startup guide ×1, power cord ×1, USB cable ×1, D-sub connector ×1 (PW4001-02, PW4001-05), DC power supply connector (PW4001-04, -05)

Up to 8000 A (High precision) (2)

Aggregate and measure large currents in multi-cable circuits

Use multiple AC/DC Current Sensor CT6877A units with the Sensor Unit CT9557 to measure currents of up to 8000 A in multi-cable circuits. Requires 1 connection cable to connect the PW6001/PW4001 to the CT9557.

PL23 (10 pin) - ME15W (12 pin) conversion (1)

When using a PL23 terminal sensor without “-05” in the model number, Conversion Cable CT9900 must be used to connect to ME15W terminal.

When using the CT6865 and CT6846 (without “-05”), connection via the CT9900 and manual settings are required on the main device.

Current Input 2000A AC/DC (3)

The CT9920 is necessary for connecting the current sensor with Hioki PL14 to the PW4001

Current Input 6000A (2)

The CT9920 is necessary for connecting the current sensor with Hioki PL14 to the PW4001

Voltage Input (8)

Connection Options (11)

Carrying case (1)

Other options (2)


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