Delta MS 300M - Display Solar Power Calculator Specifications download pdf (Page 6)

• Simultaneous Measurement of Voltage, Current, and THD

(Total Harmonic distortion)

Testing of lighting devices often involves measurement of voltage, current, and THD,

a parameter that indicates the quality of power. This is because distortion in voltage

and current waveforms is becoming more prevalent due to the increasing complexity

of control systems.

The WT3000 can simultaneously measure voltage and current with THD, eliminating

these inconveniences and allowing for more accurate and rapid measurements of an

instrument’s characteristics and fluctuations.

 Lamp Current Measurement

Since lamp current flows inside of fluorescent tubes, normally it cannot be measured

directly. However, lamp current can be displayed by measuring secondary current

and cathode current and finding the difference in their instantaneous values using

the delta computation function (/DT option).

• Related applications

Evaluation of power quality in equipment designed to be connected in a system,

such as UPSs and power conditioners

Evaluation of Lighting Devices

You can measure power consumption in mobile phones, batteries, and other

equipment powered by dry cells. You can perform a variety of operation tests for

reducing power consumption by using the current or power integration function. This

offers a powerful means of evaluating instruments, such as for checking control

modes for lengthening battery life.

Major Features

• 5mA range for very low current measurements

• Checking power consumption integration of mobile phones when switching modes

(using integration functions)

• Visually observing trends in power consumption using trend display functions that

allow checking of temporal fluctuations

• Checking the waveform of the consumed current

• Null function can be used to subtract the DC offset

Use the 2A input element for small current consumption.

Measurement of Power Consumption in Mobile Phones

• High Accuracy Even at Low Power Factors

The WT3000 represents great improvement over previous models in terms of power

factor error (it is approximately three times more accurate). With improved

measurement accuracy in the lower power factors—such as with transformers, active

power values can be measured with higher precision.

• Simultaneous Measurement of RMS and MEAN of Voltage

Voltage RMS (the true RMS value) and voltage MEAN (rectified mean value

calibrated to the rms value) can be measured at the same time, allowing for

measurement of corrected power (Pc).

• Phase Voltage Confirmation

The delta computation function (/DT option) allows both star-delta and delta-star

conversion.

High Accuracy Measurements of Transformers

• Conversion Efficiency Measurement

Renewable energy source of photovoltaic power generation and wind power is

converted dc to ac using power conditioner. The WT3000 Precision Power Analyzer

provides measurement with world-class DC and AC signal accuracies.

Measuring Conversion Efficiency of Power Conditioner

• Basic power accuracy of ±0.02% of

reading

The WT3000 can be used as a reference

instrument for periodic in-house calibration of

general-purpose power measurement

instruments, such as the WT210 and WT230.

Reference equipment for power calibration

Temperature- and humidity-controlled

calibration room

Example of integration graph display Current consumption in mobile phones

Measure the DC voltage, DC current,

and power conversion efficiency

Since images can be saved, they can be pasted

as-is into reports as evaluation and test data.

* THD stands for total harmonic distortion. In other words, the distortion factor.

*Please be aware that during lighting testing, the measured values and efficiencies may not be

stable since the power conversion efficiency fluctuates over time due to the emission of heat.

DC100V to 250V DC300V AC100V

Solar cell module

Example of Overview of a Photovoltaic Power Conditioner

booster

converter

DC/AC

converter

Load

Power Link

Ballast

Flourescent

lamp

Secondary current Cathode current

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Delta MS 300M - Display Solar Power Calculator Specifications Page 6

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