Measure AC/DC Standby Power Up to Large Power Loads
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.
The PW3335 Power Meter delivers a range configuration that lets you measure extremely low power levels with a margin to spare. Accuracy can be set from 10 μA and up for current, and 0 W and up for effective power. Perfect for measurements according to IEC62301 and other standards.
When an AC adapter or switching power supply operates with no load, the crest factor of the current waveform increases. The PW3335 can measure waveforms that exceed the range of watt meters that support crest factor 3.
In addition, although the power factor is low during no-load operation, the PW3335 is affected very little by power factor and can therefore achieve accurate measurements.
A no-load loss test is one indicator for evaluating energy conservation for transformers and motors.
The PW3335 are affected very little by power factor, at ±0.1% f.s. or less, allowing active power to be measured with a high level of accuracy at low power factors.
| 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 | |||||
| Logger connectivity | Sends measured values wirelessly to logger by using a Bluetooth® wireless technology serial conversion adapter. (Supported devices: Hioki LR8410 Link-compatible loggers), Ver. 1.1 and later, the PW3335-01 is not supported | |||||
| Interfaces | LAN (all models), RS-232C (except -01 model, for communication/LR8410 link), 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) | |||||
| Included accessories | Instruction manual ×1, power cord ×1, voltage and current input terminal safety cover ×2, safety cover installation screws (M3 × 6 mm) ×4 | |||||
