PSR220A

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The PSR220A is a current and voltage monitoring, relay output device. It is designed to provide precise current or voltage monitoring and relay switching in a variety of applications. Its design is based on high quality, low noise analog circuitry and microprocessor based technology for accurate and reliable operation.

The PSR220A is ideal for monitoring and controlling DC and AC systems, such as solar power systems, motor drives, electrical distribution, and industrial automation. The device is also suitable for any other applications that require precise monitoring and control of current or voltage. It can be used in standalone mode or connected to a PC through its serial port.

The PSR220A has a wide range of adjustable alarm levels and over- and under-voltage limits. It has an adjustable time delay for triggering the alarm. The relay output is selectable so that the user can configure it to break (open) or make (closed) contacts when certain parameters are met.

The PSR220A also supports various control modes. These include timer modes, such as one-time and cyclic timers, and trip frequency meters for monitoring how often an alarm is triggered. It can also be equipped with an expansion module for additional alarm functions.

The PSR220A features a large LCD for displaying the current, voltage, and other monitored parameters. It also has a buzzer for audible alarms and a backlight and keypad lock for added security. The device is housed in a robust polycarbonate case for long-term durability and protection from harsh environmental conditions. The housing and connector are both IP65 or higher for added protection against dust and water.

The PSR220A can be powered by an external power supply or, alternatively, by the monitored current or voltage directly. Its operation is based on current- or voltage-controlled electrical switching circuits. Once the current or voltage value reaches the set limit, its output relay is triggered accordingly.

The PSR220A is designed to provide reliable and accurate current or voltage monitoring. It is versatile and easy to install, allowing for a wide range of applications. With its range of adjustable parameters, the PSR220A is an ideal choice for a variety of monitoring and control tasks.

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