Hioki 3334 AC/DC Power HiTester — Precise Single-Phase AC/DC Power & Inrush Measurement

$3,114.29

The Hioki 3334 is a high-accuracy single-phase AC/DC power meter featuring multiple modes (AC, DC, AC+DC), peak waveform capture, current & power integration up to 10,000 hours, and a frequency range from DC to 5 kHz. Ideal for energy efficiency testing and inrush current measurement.

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Overview
The HIOKI 3334 AC/DC Power HiTester is built for precision power measurement on single-phase, two-wire systems and DC loads. It handles modern appliance and power-supply waveforms—from half-wave rectified motors to full-wave rectified adapters and heaters with cycle control—without sacrificing accuracy. With wide input ranges up to 300 V and 30 A direct, DC to 5 kHz frequency coverage, and ±0.1% basic accuracy, the 3334 delivers dependable measurements for R&D, production, and compliance work. Its built-in RS-232C interface simplifies data logging and automation; the 3334-01 variant adds GP-IB for legacy system integration. An extended integration function supports cumulative mAh and mWh logging for up to 10,000 hours, ideal for long-term power consumption profiling and energy-efficiency evaluations. (Official status: discontinued; Hioki lists PW3335/PW3335-01 as replacements.)

Key Features

Single-phase (1P2W) and DC power measurement with AC, DC, and AC+DC modes
±0.1% basic accuracy (typical, see detailed specs for conditions) for trustworthy results
Wide frequency support: DC and 45 Hz to 5 kHz for appliances, adapters, and DC supplies with ripple
Direct input up to 300 V and 30 A; power display from 1.5 W to 9.0 kW depending on range selection
Integration functions: current (mAh) and active power (mWh) with polarity-independent and sum values, up to 10,000 hours
Waveform monitoring outputs (simultaneous V, I, W) and D/A analog outputs for logging or external devices
RS-232C standard; GP-IB available on model 3334-01
Fast 5 Hz display refresh for responsive readings
SPECpower® compatibility for server power consumption benchmarking (where applicable)

Applications

Appliances & small motors: Hairdryers, fans using half-wave rectification
AC adapters & consumer power supplies: Full-wave rectified loads and standby/active consumption studies
Heaters & controllers: Phase or cycle-controlled waveforms for voltage/temperature regulation
DC power consumption: DC rails with superimposed ripple; battery-powered devices and chargers
Long-run energy studies: 10,000-hour mAh/mWh integration for cumulative consumption tracking
Production test & QA: Interface options (RS-232C; GP-IB on 3334-01) for automated test sequences

Technical Specifications

Item	Specification
Measurement lines	Single-phase, 2-wire (1P2W)
Measured items	Voltage, Current, Active power, Apparent power, Power factor, Frequency, Integration (current, active power), Waveform peak (V/I)
Voltage ranges	AC/DC 15.000 / 30.00 / 150.00 / 300.0 V
Current ranges	AC/DC 100.00 / 300.0 mA, 1.0000 / 3.000 / 10.000 / 30.00 A
Power range	1.5000 W to 9.000 kW (range combination dependent)
Frequency characteristics	DC, 45 Hz to 5 kHz
Basic accuracy	±0.1% rdg. ±0.2% f.s. (DC); ±0.1% rdg. ±0.1% f.s. (45–66 Hz)
Display refresh	5 times/s
Integration	Up to 10,000 h; 6-digit display from 0.00000 mAh / 0.00000 mWh; polarity-independent and sum values
Input resistance	Voltage: 2.4 MΩ; Current: ≤ 10 mΩ (direct input)
Waveform outputs	3 channels (simultaneous instantaneous V, I, W), 1 V DC f.s.
Analog (D/A) outputs	4 channels (V, I, active power + 1 selectable: apparent power, PF, current integration, active power integration), ±2 V DC f.s.
Functions	Rectification method switch: AC+DC (true RMS), DC (average), AC (true RMS); Wave peak; VT/CT ratio; Average
Interfaces	RS-232C standard; GP-IB on 3334-01
Power supply	100–240 V AC, 50/60 Hz, max 20 VA
Dimensions / Mass	210 W × 100 H × 245 D mm; 2.5 kg
Accessories	Instruction manual ×1; Power cord ×1
Model status	Discontinued; replacements: PW3335 (for 3334) / PW3335-01 (for 3334-01)