The CW240 power meter is a complete tool for enhancing energy efficiency, finding areas for improvement and assessing equipment lifecycles. The meter provides in-depth information on how an item of equipment, an area of a plant or a complete facility is operating that goes beyond simply measuring power usage.
By using the supplied clamp-on components and probes, users can better determine maintenance, repair and replacement schedules for equipment such as transformers and motors. Information is provided with respect to load factors and demand factors, as well as current/voltage fluctuations at motor start-up.
The CW240 offers many unique features to improve energy efficiency through highly detailed data collection and easy-to-understand displays.
Better determine the maintenance, repair and replacement schedules for each piece of electrical equipment, such as transformers and motors, by analyzing detailed information with respect to load and demand factors. Review detailed information on current and voltage fluctuations at motor start-up.
Perform data collection at intervals from 60 times per second to hourly in order to cover every application in the plant from low interval (e.g., plant watt hours) to high interval testing (e.g., troubleshooting a motor)
Data Collection Time(s):
Improve power measurment and data collection for compliance with ISO14001 and other standards by showing exactly how and when power is being used. Power measurement is broken down into individual phases to provide a more comprehensive view of overall power usage.
Data Collection Time(s):
The CW240 also provides real-time and data log capabilities that are seamlessly downloadable into an available software package that can display graphs, trends and reports.
Select the Number of Display Digits and Units
Investigate electric power consumption rate for an item of equipment, an area of a plant or a complete facility. Get data beyond the 30-minute demand time frame that most utilities use to obtain average power usage by setting the demand time to units of seconds or minutes.
Power quality is an important and often overlooked element in reducing energy costs. If the power factor is not taken into account, an energy efficiency program could accidentally implement steps that increase the utility bill instead of lowering it. For example, replacing 100-watt incandescent bulbs with low-watt fluorescent bulbs saves energy but can worsen the power factor, possibly resulting in low power factor fines from the electric utility.
The CW240 also provides a demand feature that can be used to measure peak power usage over a specified time period. This data can be used to minimize peak power usage, or to shift peak usage to a more favorable time in accordance with electric utility time-of-day pricing.
Demand Time Setting:
Obtain detailed date to ensure a smooth power supply for operations, and prolong the life of equipment by reducing the effects of harmonics.
Inverter power supplies can cause distortions in voltages and currents, resulting in malfunctions, equipment damage and power loss. Therefore, it is critical to understand and monitor harmonics to ensure a reliable power supply. The CW240 provides displays of harmonics from the 1st to 50th for analysis to prevent problems.
Data Collection Time
View in-depth information on waveforms through easy-to-understand graphs.
Waveform measurement provides multiple ways to measure and analyze waveforms to see large waveform distortions that can indicate a potential problem in the system.
Data Saving Format:
Protect equipment from harmful power fluctuations by understanding exactly when and where these flucutuations occur.
The CW240 detects dates/times of when fluctuations occur as well as the type of fluctuation, the channels where they occur, rms values and the periods between start and end. Once the voltage threshold is set, the fluctuations exceeding the threshold are detected.
Functionalities unique to the CW240 make setting up and operating the power meter easy.
More Valuable Functions
The CW240 enables measurement in four systems at the same time in a single-phase 2-wire system. In the case of a single three-phase 3-wire system, it can measure two systems simultaneously.
Current clamp range/range can be set for each system.
Measurement is attained of the current flowing in each load.
Wiring Check Function
Prior to start of measurement, the CW240 checks whether wiring is correct. Wiring errors, reversal of current clamps and phases to checked can displayed in a vector diagram to show errors and facilitate correct wiring.
Setting Check Function
Settings made for data saving can be checked in the screen. This prevents data acquisition errors that may occur due to mistakes in voltage range setting, current clamp selection or data save item selection.
External magnetic field effect is 0.002A or less at 400A/m
Yokogawa's proprietary technology has achieved a magnetic field impact amount of 30 ppm even in adjacent power lines (at 100A).
For use with the 2A current clamp probe (96036).
Use of an external memory card (computer flash) makes it possible to save a large amount of data. A Yokogawa memory card of up to 512 MB can be used, and data is saved in an CSV format. In addition, the CW240 has a 1MB internal memory.
Analog data, such as temperature and illuminance data, can be saved simultaneously with power can send data by using the analog input function (2 channels).
The available input ranges are 100 mV/1 V/5 V. In addition, the analog output function (4 channels) can send data to an external recorder, allowing data duplexing . Output is +/- VDC.
The analog input/output function is optional.
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