HIOKI Power HiTester 3333 ‒ Single-Phase AC Power Meter

Overview
The HIOKI Power HiTester 3333 is a benchtop single-phase AC power meter designed for high-accuracy, long-term stability, and rugged performance in industrial, laboratory, and production-line environments. It provides direct input measurement of voltage, current, active power, apparent power, and power factor with true RMS sampling. Its compact form factor, multiple input ranges, and robust interfaces make it suitable for assessing power consumption of appliances, ensuring regulatory compliance, and performing efficiency analyses.

With a guaranteed accuracy period of three years, the 3333 significantly reduces the need for frequent calibration, cutting down maintenance costs and downtime. The unit supports a wide input range (50 mA to 20 A in its standard precision guarantee, and up to 30 A maximum), and can handle voltages up to 300 Vrms, offering flexibility for testing varying loads. Interfaces such as RS-232C are standard, and the 3333-01 version adds GP-IB for advanced connectivity.

Key Features

• High precision: ±0.1% rdg + ±0.1% f.s for 1-year accuracy (at 45-66 Hz, input current ≤ 20 A) • ±0.1% rdg + ±0.2% f.s for 3-year guarantee.

• Wide measurement ranges: from low current loads (50 mA) through to heavy loads (20 A standard; up to 30 A in some ranges) and up to 300 Vrms.

• True RMS sampling and wide frequency response (45 Hz to 5 kHz) to accurately measure real-world distorted waveforms such as from switching power supplies.

• Multiple measurement parameters: voltage, current, active power, apparent power, power factor.

• Adjustable VT / CT ratios allow direct transformer-based measurements.

• Status features: averaging (AVG), key lock, display hold, over-range / peak indicators.

• Analog output: three channels (voltage, current, and active power) at +2 VDC full scale for external recording.

• Interfaces: standard RS-232C; GP-IB available on model 3333-01.

• Compact build: dimensions approx. 160 × 100 × 227 mm, weight ~1.9 kg; wide supply voltage (100-240 VAC) enabling global use.

Applications

The HIOKI 3333 power meter is suitable for:

• In-line production inspection of home appliances (refrigerators, air conditioners, washing machines, etc.) to verify power consumption before shipping.

• Regulatory compliance testing (e.g. electrical safety standards, energy efficiency, PSE, CE, etc.).

• Development and R&D labs measuring the performance of motor drives, lighting systems, and switch-mode power supplies, especially under distorted or non-sine wave loads.

• Power factor studies and efficiency optimization for industrial equipment.

• Energy audits, standby power measurement, and power usage monitoring in facilities.

Technical Specifications

Package Contents

• HIOKI Power HiTester 3333 (or 3333-01 with GP-IB) unit

• Power cord (suitable for your region)

• Instruction manual (English / local language)

• Certificate of calibration / test report

• Accessories depending on your configuration: optional printer model 9442, RS-232C cable, GP-IB cable (for 3333-01), recording paper, etc.

Call to Action

To ensure precise, reliable power measurements for your production, lab, or compliance requirements, order the HIOKI 3333 today. Contact us for lead times, optional accessories (printer, interface cables), and special calibration certificates. Ensure your measurements meet regulatory standards and maintain consistency over long periods with the 3333’s three-year accuracy guarantee.

【FAQ】

• Q: What is the accuracy of the HIOKI 3333 over time?
  A: The 3333 offers ±0.1% reading + ±0.1% full scale for one-year accuracy (when measuring 45-66 Hz and current ≤ 20 A). The three-year guarantee accuracy is ±0.1% reading + ±0.2% full scale under the same conditions.

• Q: Can it measure distorted waveforms or non-sine wave AC loads?
  A: Yes. The 3333 uses true RMS sampling and supports a wide frequency response up to 5 kHz, making it suitable for switch-mode power supplies, phase-controlled loads, and other non-ideal waveforms.

• Q: What interfaces are available for data output and control?
  A: Standard RS-232C is included. If you choose the 3333-01 version, it includes GP-IB (IEEE-488) for more advanced automation and integration.

• Q: Is the unit suitable for global usage in terms of supply voltage and safety?
  A: Yes. It accepts 100-240 VAC (50/60 Hz) input power, complies with relevant safety standards, and has input voltage up to 300 Vrms. Suitable for many regions.

• Q: What accessories are available with or for the HIOKI 3333?
  A: Optional items include printer (Model 9442), printer connection cable, recording paper, RS-232C / GP-IB cables, and accessories for VT/CT ratio setting etc.