HIOKI 333x and PW333x Series Power Meter

Benefits of the 33x and PW333x Series for Reliable Power Measurement

• AC and AC/DC power meters and power testers.
• Single- and three-phase models.
• 1-, 2-, and 3-channel devices.

HIOKI 333x and PW333x Series Power Meters

HIOKI 3333, 3334 and PW3335, PW3336, PW3337 AC, AC/DC Power Meters and Power Testers

The HIOKI 333x and PW333x are a serie of power meters for reliable industrial power measurements. The PW3337 and 3336 are 2- or 3-channel three-phase models, the PW3335 is a 1-channel single-phase testers. The power testers 3333 and 3334 are 1-channel single-phase devices. Depending on the model/options, the power metes can be equipped with RS232, LAN, GPIB, and D/A output.

• Three-phase power meters PW3337 and PW3336:
  Suitable for a wide variety of connections, such as measuring three-phase circuits and single-phase 2-wire multiple circuits. There is little internal resistance for the current input, and large currents up to 65 A can be measured with great accuracy.
  • Voltage/current/power basic accuracy of ±0.1%.
  • Direct input up to 1000 VAC/DC/65 A.
  • Harmonic measurement as standard feature, IEC61000-4-7 compliant.
  • Little instrument loss, even with large currents.
  • DCCT input with an input resistance of 1 mΩ or less.
  • Power factor effect of ±0.1% f.s. delivers highly accurate measurements even for no-load testing of transformers with a low power factor.
  • Measurement of multiple connections in the optimal range for each due to independent ranges for each channel.
  • Measure up to 5000 AAC with optional current sensor.
• Single-phase power meter PW3335:
  Provides highly accurate measurements for everything from standby power to operating power. Compliant with the IEC62301 measurement standard for standby power, it is capable of measuring current as low as 10 µA.
  • Voltage/current/power basic accuracy ±0.1%.
  • Highly accurate AC/DC measurements from standby power to operating power.
  • Accuracy guaranteed throughout a wide range, from 10 µA to 30 A and 60 mV to 1000 VAC/DC.
  • Harmonic measurement as standard feature, IEC61000-4-7 compliant.
  • Compliant with the IEC62301 and EN50564 measurement standards for standby power.
  • Power factor effect of ±0.1% f.s. delivers highly accurate measurements even for no-load testing of transformers with a low power factor.
  • Accurate measurement of fluctuating electric power thanks to auto range integration with guaranteed accuracy for measurements while range switching.
  • Measure up to 5000 AAC with optional current sensor (PW3335-03, -04).
• Single-phase power meters 3334, 3333:
  Designed for power consumption testing with an accuracy guaranteed for up to 3 years.
  • 3334: Measurement of power consumption and integrated power for battery-operated equipment, home appliances, and office equipment. Compliant with the SPECpower server power evaluation test.
  • 3333: Low-price model for measurement of power consumption on production/inspection lines. Compact model for saving space, even when added to a system.

Model Overview

Model Variants