PWRS440A

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PWRS440A is a sophisticated multi-function single-phase AC digital power meter that is designed for commercial and industrial applications. It measures, records, and displays the amount of electrical current, voltage, and power usage for an entire building or commercial facility, helping users to track power consumption more accurately. The instrument also comes with an alarm and relay output, making it a versatile tool for predicting and controlling energy consumption.

The PWRS440A is equipped with an AMR-based true RMS current sensor which is compliant with UL standards and is used in most applications including residential, commercial, and industrial settings. The AC current signal is converted into voltage by the current transformer and is then divided by a voltage divider circuit into two parts: the sensed voltage signal and the reference voltage. The two signals are then compared at the comparator circuit which sends out the appropriate control signals to the microcontroller.

The meter also features a highly accurate three-phase voltage measurement system. The three-phase voltage is measured and converted to an average DC signal and then fed to the microcontroller. The microcontroller then converts the DC signals into the display units of Watts, Volt/Amp and Power Factor.

The PWRS440A meter also features a relay output feature. This feature allows the meter to automatically switch on or off an external device, such as a motor, according to the amount of current or voltage that is consumed. This feature is particularly useful for applications that require precise monitoring and control of electricity usage such as solar energy systems, industrial motors, and more.

The meter also features a variety of other features such as programmable alarms, user-definable time scales, status LEDs, and more. The PWRS440A also has a dual-line LCD display which is used to display the current, voltage, power, and other related parameters. The user can use the interface to set the display parameters and configure the meter to suit the specific needs of the application.

The PWRS440A has a wide range of applications including energy management, home automation, process control, industrial automation, and many more. Its combination of precise measurement, reliable performance and advanced features make it an ideal solution for those looking for an efficient, user-friendly power monitoring and control system. With its easy-to-use interface, the PWRS440A provides a highly reliable and cost-effective way to monitor and control commercial and industrial energy usage.

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