Hioki – POWER METER PW3335

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Hioki benchtop power meters and power analyzers are best in class power measuring instruments for measuring single to three-phase lines with a high degree of precision and accuracy. The PW3335 delivers high measurement accuracy and handles currents with higher crest values in lower current ranges (i.e., high crest factors) while minimizing the effects of power factor to greatly help reduce power measurement uncertainty, especially critical when the measured standby power is at μA levels.

Key Features

• Compatible with the SPECpower® benchmark for server power consumption SPECpower® is a registered trademark of Standard Performance Evaluation Corporation

• High-precision ±0.1% basic accuracy (For complete details, please refer to the specifications)

• Wide 1mA to 20A measurement range, max. continuous input of 30 A

• Wide frequency bandwidth of 0.1 Hz to 100 kHz or DC

• Measure harmonic and standby power consumption according to IEC62301

• Achieve superior accuracy even with a low power factor for no-load testing of transformers and motors

• Synchronized control using up to 8 instruments

• Built-in external sensor input terminals to measure up to 5000 A AC (PW3335-03, PW3335-04 only)

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 6 months)

Measurement lines Single-phase/ two-wires
Measurement items Voltage, current, active power, apparent power, reactive power, power factor, phase angle, frequency, maximum current ratio, current integration, active power integration, integration time, voltage waveform peak value, current waveform peak value, voltage crest factor, current crest factor, time average current, time average active power, voltage ripple rate, current ripple rate
Harmonic parameters Synchronization frequency range : 10 Hz to 640 Hz
Maximum analysis order : 50th
Harmonic voltage RMS value, harmonic current RMS value, harmonic active power, total harmonic voltage distortion, total harmonic current distortion, fundamental wave voltage, fundamental wave current, fundamental wave active power, fundamental wave apparent power, fundamental wave reactive power, fundamental wave power factor (displacement power factor), fundamental wave voltage current phase difference, harmonic voltage content percentage, harmonic current content percentage, harmonic active power content percentage
(The following parameters can be downloaded as data with only PC communications : Harmonic voltage phase angle, harmonic current phase angle, harmonic voltage current phase difference)
Measurement ranges [Voltage] AC/DC 6 V to 1000 V, 8 ranges
[Current] AC/DC 1 mA to 20 A, 14 ranges
[Power] 6.0000 mW to 20.000 kW (Depends on combination of voltage and current range)
Effect of power factor : ±0.1% f.s. or less (45 to 66 Hz, at power factor = 0)
Integration measurement (Integration time up to 10,000 hours) Switchable between fixed-range integration and auto-range integration.
[Current] No. of displayed digits: 6 digits (from 0.00000 mAh, polarity-independent integration and sum value)
[Active power] No. of displayed digits: 6 digits (from 0.00000 mWh, polarity-independent integration and sum value)
Input resistance (50/60 Hz) [Voltage input terminal] 2 MΩ
[Current input terminal] 520 mΩ or less (at 1 mA to 100 mA range), 15 mΩ or less (at 200 mA to 20 A range)
Basic accuracy (Active power) ±0.1% rdg. ±0.1% f.s. (DC)
±0.1% rdg. ±0.05% f.s. (45 Hz to 66 Hz, at input < 50% f.s.)
±0.15% rdg. (45 Hz to 66 Hz, at 50% f.s. ≤ input)
Display refresh rate 5 times/s to 20 seconds (depend on average times settings)
Frequency characteristics DC, 0.1 Hz to 100 kHz
D/A output (-02/-04 models only) 7 channels (selectable from the following items): level output DC ±2 V f.s. or 5 V f.s., waveform output 1 V f.s., level output, instantaneous waveform output (voltage, current, active power), level output (apparent power, reactive power, power factor, or other), high-speed level output (voltage, current, active power)
Functions [Rectification method] AC+DC, AC+DC Umn, AC, DC, FND, Auto-range, Average, VT or CT ratio settings, Synchronized control, MAX/MIN, and more
Interfaces LAN (all models), RS-232C (except -01 model), GP-IB (-01, -04 models only)
Power supply 100 V to 240 V AC, 50/60 Hz, 30 VA max.
Dimensions and mass 210 mm (8.27 in)W × 100 mm (3.94 in)H × 245 mm (9.65 in)D, 3 kg (105.8oz)
Accessories Instruction manual ×1, power cord ×1, voltage and current input terminal safety cover ×2, safety cover installation screws (M3 × 6 mm) ×4


Additional information