EA Elektro Automatik EA-PSI 9500-10 DT DC Power Supply NEW

The Microprocessor-controlled laboratory power supplies of the series EA-PSI 9000 DT offer a user-friendly, interactive handling concept, along with an extensive set of standard features, that can facilitate operating them. Configuration of output parameters, supervision features, and other settings is smart and comfortable. The implemented supervision features for all output parameters can help to reduce test equipment and make it almost unnecessary to install external supervision hardware and software. The clear control panel with its two knobs, one pushbutton, two LEDs, and the touch panel with a color display for all important values and status enable the user to handle the device easily with a few touches of a finger. For the integration into semi-automatic and remotely controlled test and automation systems, the devices offer a set of interfaces (analog and digital) on their rear side.

Auto-ranging power stage

All models are equipped with a flexible auto-ranging output stage which provides a higher output voltage at a lower output current, or a higher output current at a lower output voltage, always limited to the max. nominal output power. The maximum power set value is adjustable with these models. Therefore, a wide range of applications can already be covered by the use of just one unit.

AC supply

The equipment uses an active Power Factor Correction (short: PFC), enabling worldwide use on a mains input from 90 VAC up to 264 VAC. Models with 1.5 kW will reduce their output power to 1 kW below input voltages of 150 VAC.

DC output

DC output voltages between 0...40 V and 0...750 V, output currents between 0...4 A and 0...60 A, and output power ratings between 320 W and 0...1500 W are available. Current, voltage, and power can thus be adjusted continuously between 0% and 100%, no matter if manually or remotely controlled (analog or digital). The output terminals are located on the front side of the devices. Compared to other power supply series, the PSI 9000 DT features a built-in, additional output filter to achieve much lower ripple, i.e. low noise on the DC output voltage.

Discharge circuit

Models with a nominal output voltage of 200 V or higher include a discharge circuit for the output capacities. For no load or low load situations, it ensures that the dangerous output voltage can sink to under 60 V DC after the DC output has been switched off. This value is considered as limit for voltages dangerous to human safety.

Protective features

For protection of the equipment connected, it is possible to set an overvoltage protection threshold (OVP), as well as one for overcurrent (OCP) and overpower (OPP). As soon as one of these thresholds is reached for any reason, the DC output will be immediately shut off and a status signal will be generated on the display and via the interfaces. There is furthermore an overtemperature protection, which will shut off the DC output if the device overheats.

Built-in analog interface

There is a galvanically isolated analog interface terminal, located on the rear of the device. It offers analog inputs to set voltage, current, power and resistance from 0...100% through control voltages of 0 V...10 V or 0 V...5 V. To monitor the output voltage and current, there are analog outputs with 0 V...10 V or 0 V...5 V. Also, several inputs and outputs are available for controlling and monitoring the device status. 

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