Digital Power Meter WT300 (DISCONTINUED)

Comparison of WT210/230 with WT310/330

Wide current input range

• Wide current input ranges: The WT300 series offers a wide range of current inputs from a few mA t
• Simultaneous measurement of all parameters: The WT300 can measure all DC and AC parameters. The WT300 series can also measure harmonics and perform integration simultaneously without changing the measurement mode.
• Fast display and data update rate: The fast display and 100 ms maximum data update rate of the WT300 series offers a short tact time in testing procedures. 0.1% of reading + 0.1% of range (50Hz/60Hz)
• MAX hold function: The maximum values of RMS/PEAK voltage & current active power, reactive power and apparent power can be held.
• Line filter and frequency filter capability: These filter functions will cut off unnecessary noise & harmonic components for fundamental waveform measurements.

Allows users to have the flexibility to choose according to applications needs. Using the WTViewerFreePlus software to set up all kinds of measurements. Additionally, the numeric values, waveform display, and trend graphs of the measurement data can be displayed and saved.

The D/A option is used to output Voltage, Current, Power, and other measured data for recording to data loggers (+/-5Vdc outputs).

Two new functions added to D/A output option. (Firmware Ver1.04)

Two new functions, Manual Range Mode and Comparator Mode can be used conveniently with built-in PLC and recorders in production line inspection systems.

The default settings will set D/A output value to rated value of measurement range. In this mode, D/A output can be zoomed in and out on each channel by arbitrarily setting the display value of measurement items when D/A output is either -5V or +5V. For example, if you measure the fluctuating current from 0.6A to 0.8A by 1A current range with D/A output range mode switched to fixed range mode, the D/A output voltage will fluctuate from 3.0V to 4.0V. The D/A zoom function is available for enlarging and observing this fluctuating value. Set the D/A output range mode to manual range mode with minimum value set to 0.6A and the maximum value to 0.8A. Then, when the current value measured is 0.6A, the output will be -5V, and when it’s 0.8A, the output will be 5V.

This mode will compare measured, computed, and integrated values with previously set determined value by the communication command, and output (from -5V to +5V) determined results by D/A output. If you are going to use a relay contact output, please prepare the relay and the relay drive circuit.

The upper and lower limit value of Comparator Mode
The following are the D/A output during the Comparator Mode

• Less than lower limit value. Output: -5 V
• Greater than lower limit value and less than upper limit value. Output: 0 V
• Greater than upper limit value. Output: +5 V

* The above 2 modes can only be set by the communication command.
* Both modes can be set for all D/A output items.

The WT300 series power meters are easy to use, cost effective, and accurate for a wide range of applications, such as production, testing, evaluation, and research and development.

For home appliances and office equipment

-Multiple communication interfaces such as USB, RS-232 or GP-IB and Ethernet capable.

-The compact half rack mount size helps users build smaller test systems with a better return on investment.

-D/A output function for data recording
 

-5mA range helps small current measurement (WT310)

-Range skip function provides the ability to select usable ranges in advance, while auto ranging adapts rapidly to changing input conditions. [PIC]

-The WT310 has a high measurement resolution of Max. 100µW under the 5mA range setting.

-Simultaneous measurement of normal power parameters, harmonic components, and THD.

-Free PCM software for IEC62301 testing

-Direct high current measurement up to 40Arms without using external sensors

-Auto ranging function for Integration mode.

For industrial equipment and transportation

-Accurate DC measurement: 0.3% total

-Direct high current measurement up to 40A without any external current sensor.

-Charge/Discharge energy measurement for batteries

The WT300 series provides reliable current integration (Ah) and Energy (Wh) measurement for up to 10,000 hours. The D/A option is used to save and monitor the measurement results. An external recorder or data logger, such as a ScopeCorder, can be used to save this D/A function data along with other parameters, such as temperatures, torque, and rotation speed.

-Maximum order setting for THD calculations

-Efficiency measurements using a single power meter

New version of the WTViewerFreePlus , measurement data can be collected from multiple WT300 units
(same model maximum 4 units).

-Various communication interfaces such as USB, RS-232 or GP-IB and Ethernet are available.
-Data update rate can also be measured simultaneously as fast as 100ms.
- power parameters can be measured up to the 200 items simultaneously.
-D/A output function for data recording is available.