*2 : Up to 1000 V with a voltage range of 1000 V. *3 : For detailed specifications of Model 3332, see the comparison chart on page 6. Power Meter PW3335: Single-phase AC/DC power meter with built-in harmonic measurement Voltage range: 6.0000 V to 1.0000 kV Current range: 1.0000 mA to 20.000 A (30 A maximum) With an expanded guaranteed accuracy range, the power meter minimizes range switchings even under power fluctuations

DC, 0.1Hz to 100kHz frequency bandwidth With built-in harmonic measurement for detailed analysis

Measure the standby power of AC adapters, both primary-side AC and secondary-side DC

Measure power supply conversion devices such as inverters and thyristors Measures solar panels and power converters, max. 1000V range

Use in the development and production of solar panels and AC adapters, secondary-side DC equipment and inverters, and power converters such as thyristors. Equipped with multiple functions for computing a wide variety of items, the PW3335 Power Meter can also be used alone for detailed analysis.

from AC/DC Standby to Operating Power

Basic accuracy of ±0.1%*, the highest in its class

Precisely measure power to determine the energy-saving performance of electrical products. Your measurements are underpinned by its reliability and accuracy.

* For complete details, please refer to the specifications.

 

Greater accuracy for standby power

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.

 

Peak value of up to 600% of the range, supporting crest factor of 6

Current waveforms in the switching power supply or at the primary-side of inverters become steep and often exceeds the fundamental range, preventing them from being accurately measured. The PW3335 resolves these issues by offering a crest factor of 6, allowing it to measure accurately even when the waveform peaks are high relative to its range.

 

Power factor effects of no more than ±0.1% f.s.

The effective power value may be affected in situations with low power factors, such as measurement of standby power or unloaded operation of transformers and motors. The PW3335 reduces the power factor effect to less than a half of that available in legacy models.

 

Power data and harmonic data — all measured simultaneously

All measurement data are internally processed in parallel simultaneously. Even when waveforms have mixed A C / D C c o m p o n e n t s – h a l f - w a v e rectification waveforms for example – the individual components can be measured simultaneously. The PC communication application further enables 180 or more measurement parameters to be acquired simultaneously.

 

Built-in harmonic measurement

The PW3335 measures harmonics up to the 50th order. Use it for evaluation and development of power sources for home appliances and other electrical equipment. Simultaneously display the effective voltage and total harmonic distortion (THD) on the screen. For THD computation, any maximum harmonic order can be specified

 

Power consumption and regeneration (recharging) power integrated separately

Use for evaluating the input and output of secondary batteries in EVs, etc., and for measuring the sold power of solar panels. Power consumption and regeneration (recharging) power can each be measured separately.

 

MAX/MIN hold function for spotting current peaks at a glance

Capture maximum and minimum values such as inrush current waveform peak values and maximum consumed power.

Dimension Front

		"Half-rack size" – 2 units fit into 1 rack

Diverse and Powerful Functionality

Measure power in accordance with international standards

The PW3335 is engineered to comply with important international standards, including IEC62301 for electrical power consumption in standby mode and the ErP Directive or Energy Star standard. It can also be used to find the special parameters required by the standards – such as THD, CF, and MCR.

THD (total harmonic distortion)

Indicates the total harmonic components in an AC waveform.

CF (crest factor)

Also known as the peak-to-rms ratio, the ratio of the waveform's peak value to its effective value.

MCR (maximum current ratio)

Evaluation index of the current, calculated from the crest factor and the power factor.

Download free software for creating IEC62301-compliant reports from the Hioki website.

Measure integral power of equipment that operates intermittently or has a large power variation

Time-averaged effective integral power

Use this feature to measure the power of equipment that operates intermittently or is under cycle control. Average power is calculated from the integral value of the fluctuating power.

Example of intermittent operation		Example of cycle control

Auto-range integration

A function whereby the device jumps automatically to the optimal current range for the consumed current as it measures and integrates the values. Power integration can be carried out on separate ranges, enabling measurements for individual modes in equipment that has fluctuations in power levels

Dimension Rear view of PW3335-04

Model	Harmonics measurement	Synchronous control	LAN	RS-232C	GP-IB	D/A output	Current sensor input
PW3335					-	-	-
PW3335-01				-		-	-
PW3335-02					-		-
PW3335-03					-	-
PW3335-04

Rich interfaces and extensibility

3 D/A output types
(PW3335-02, PW3335-04)

The PW3335 can output measurement values to a data logger, Hioki Memory HiCorder or similar, via voltage signals. The power meter is also built in with functions for outputting the high-speed level of each successive fundamental wave cycle*, in addition to instantaneous waveform output and level output, and provides in-depth analysis of power- consuming equipment such as cutting/ grinding tool monitoring equipment.

For voltage and current, cycle-by-cycle updating is possible only with an input of 45 to 66 Hz.

 

PC communication software

By using the bundled PC application, you can control the power meter from a PC without needing to code your own communication program. The software enables you to save data to the PC, display waveforms, and perform efficiency calculations*, etc.

Compatible with LAN, RS-232C, GP-IB

*Two or more PW3335s are necessary in order to carry out efficiency computation.

 

Up to 8 units of simultaneous control

Use the simultaneous control feature for measuring input/output efficiency of the power source equipment, for making comparisons between multiple equipment, or for simultaneous parallel testing of production lines and achieve measurement with guaranteed synchronization. Efficiency computation is also possible in conjunction with PC software. Synchronization with both the Hioki PW3336 and PW3337 Power Meters is also supported.

 

Pair with current sensors delivering a maximum accuracy of ±0.26% to measure 30 A and up
(PW3335-03, PW3335-04)

You can input up to 5000A AC with the use of an optional current sensor. Using Hioki AC/DC high-accuracy pull-through sensors will enable precise measurement with maximum accuracy of ±0.26%.

PC Communication Software – PW Communicator

PW Communicator is an application software for communicating between a PW3335 series power meter and a PC. Free download is available from the Hioki website. The application contains convenient functions for setting the PW3335, monitoring the measurement values, acquiring data via communication, computing efficiency, and many more.

		Value monitoring The Value monitoring function displays the PW3335's measurement values on the PC screen. You can freely select up to 64 values, such as voltage, current, power, and harmonics. Waveform monitoring This function enables you to monitor the voltage, current, and waveforms measured by the meter right on the PC screen.
		Meter setting The application also enables you to configure the connected PW3335 from the PC screen Synchronous measurement When using multiple PW3335s, computation of the input/output efficiency of a power converter and similar operations are supported. This feature can be used to synchronously control up to 8 meters – including Hioki PW3336 and PW3337 series units – connected together with synchronous control cables.
		Saving data as CSV file Record 180 or more measurement data to a CSV file at fixed intervals. The shortest interval between recordings is 200 ms.

IEC62301-compliant reporting software

Download free software for creating IEC62301-compliant reports from the Hioki website.

LabVIEW Driver

A LabVIEW driver compatible with the PW3335 will enable you to acquire data and build measurement systems. (Available soon) (LabVIEW is a registered trademark of National Instruments Corporation.)

• AC and DC power measurement capability and IEC 62301-compliant standby power measurement capability
  Whereas the legacy 3332 was limited to AC power measurement, the PW3335 can measure both AC and DC components. Consequently, it can also be used to measure the power consumption of battery-driven devices and devices powered by a DC power supply such as an AC adapter. In addition, the instrument can measure the standby power of devices powered by AC adapters, a capability that is in increasing demand today. The PW3335 complies with IEC 62301, an international standard governing standby power measurement.
• High-precision, DC/low-frequency power measurement capability
  Power meters, which are used to assess energy-saving performance, are generally required to operate at a high degree of precision. Whereas the 3332 offered basic precision of 0.2%, the PW3335 delivers basic precision of 0.15% - an improvement of 0.05%.
  Further, while the 3332 offered a measurement frequency band of 1 Hz to 100 kHz, the PW3335 delivers a much wider measurement frequency band of DC and 0.1 Hz to 100 kHz, adding DC and low-frequency measurement to the capabilities inherited from the legacy product.
• Broad selection of current measurement ranges to allow measurement of systems ranging from minuscule currents to high currents
  The PW3335 ships with a broad range of current measurement ranges to provide coverage from 1 mA to 20 A and a current input range from 10 uA to 30 A for direct input and up to 5,000 A (AC) when using a current sensor.
  Standby power measurement requires the ability to measure more minuscule currents, and only Hioki products provide current measurement ranges of 1 mA and 2 mA for this parameter.
• Auto-range integration function: A proprietary Hioki function for ascertaining integrated power for individual ranges
  Printers used in offices are a standard example of an industrial device whose standby power and power consumption are measured by manufacturers. Printers are designed so that they can resume operation from sleep mode quickly when called upon to print a document. When a printer does so, the measured current fluctuates to a significant degree. The PW3335's auto-range function allows the instrument to automatically switch among appropriate measurement ranges to accommodate such fluctuations, and as a result users can ascertain integrated values for power consumption over a series of device operations.
  Thanks to another function that is not available on competitors' products, the instrument lets users ascertain an integrated power value for each range used in auto-range operation. As a result, integrated power values for the printer in sleep mode as well as at the resumption of operation and when printing can be acquired using the optimal measurement range for each.
• Built-in harmonic analysis
  The PW3335 ships standard with a harmonic analysis function. Harmonics are high-frequency components other than the commercial frequency (50 Hz or 60 Hz). These components cause distortion in voltage and current and can lead to device malfunctions as a result. Consequently, there is an extremely high level of need for harmonic analysis functionality in the development of electronic devices and other equipment.
• GP-IB, LAN, and other interfaces
  The PW3335 ships standard with a LAN interface and is available with GP-IB and RS-232C interfaces. Models with D/A output and external sensor input are also available, enabling users to choose the variant that best matches their needs.