Power Supplies and Variac – D...

Power Supplies and Variac – D...

The microprocessor controlled laboratory power supplies of series EA-PS 8000 DT cover state-of-the-art technology.

Description

  • Wide input voltage range 90…264V with active PFC
  • High efficiency up to 92% Output powers: 320W up to 1500W
  • Output voltages: 16V up to 360V
  • Output currents: 4A up to 60A
  • Flexible, power regulated output stage (from 1kW)
  • Overvoltage protection (OVP)
  • Overtemperature protection (OT)
  • Four-digit displays for voltage and current
  • Status indication via LEDs Remote sense with automatic detection
  • Analogue interface with many functions
  • U / I / P programmable via 0…10V or 0…5V
  • U / I monitoring via 0…10V or 0…5V
  • Temperature controlled fans for cooling
  • CE marked compliance to EMC, Low voltage directives
  • Options: – Digital Interfaces: RS232, CAN, USB, GPIB (IEEE) Ethernet (upon request)
  • Carrying handle and tilt stand

General The microprocessor controlled laboratory power supplies of series EA-PS 8000 DT cover state-of-the-art technology. They already offer many functions and features in their standard version, making the use of this equipment remarkably easy and most effective. The units are provided with a memory function for five different preset values, with the ability to save and recall these just by the push of a button Thus frequently used settings are at immediate reach to the user. making the work easy and time efficient. Units as from 1kW output power are equipped with a flexible autoranging output stage which provides a higher output voltage at lower output current, or a higher output current at lower output voltage, always limited to the max. nominal output power. See figure to the left. Therefore, a wide range of applications can already be covered by the use of just one single unit.programmable via 0…10V or 0…5V U / I monitoring via 0…10V or 0…5V Temperature controlled fans for cooling CE marked compliance to EMC, Low voltage directives Options: – Digital Interfaces: RS232, CAN, USB, GPIB (IEEE) Ethernet (upon request) – Carrying handle and tilt stand.

Input All units are provided with an active Power Factor Correction circuit and suitable for a worldwide usage on a mains supply from 90V up to 264V AC. Output Output voltages between 16V and 360V, output currents between 4A and 60A and output power ranges between 320W and 1500W are available.The output terminals arelocated in the front panel. The units as from 1kW output power are equipped with a flexible autoranging power stage that allows a higher output voltage at lower output current or higher output current at lower output voltage, always limited to the maximum nominal output power. At the 1.5kW models, the output power is reduced automatically to 1kW if the mains voltage drops below 150V AC. Overvoltage protection (OVP) For protection of the equipment connected, it is possible to set an overvoltage protection crowbar (OVP). Should the output voltage for any reason exceed the crowbar set, the output will be immediately shut down and a status signal be generated via LED and via the analogue interface. Remote sense The remote sensing input can be connected direct to the load equipment in order to compensate voltage drops on the power leads. The power supply detects automatically whether the sense input is connected and will stabilise the voltage directly at the load. The connection for the remote sense input is located on the rear of the device at the terminal „System Bus“. Display and controls All important information is clearly visualised on a graphic display. Information about the actual output values, preset set values for U, I, P, over- and undervoltage protection, the actual control state (CV,CC,CP), errors and settings of the setup menu are clearly displayed. In order to ease adjusting of values by the existing rotary encoders, it can be switched between coarse and fine setting mode, just by a key stroke. All these features contribute to an operator-friendliness. With the LOCK press button the controls can be locked, in order to protect the equipment and the loads from unintentional misuse. The „System Bus“ on the rear of the unit provides sense inputs and a Master-Slave circuit input. Thuse the devices can be integrated into a complete system without much effort. Presetting of output values To set output values without a direct transmission to the output, a preset function is implemented. With this function the user can preset values for the output voltage, output current, overvoltage protection (OVP), undervoltage limit (UVL) and power. Analogue Interface The analogue interface terminal is located on the rear of the device. It offers analogue inputs to set voltage, current and power (models from 1kW) from 0…100% through control voltages from 0V…10V or 0V…5V. To monitor the output voltage and current, there are analogue outputs with voltage ranges of 0V…10V or 0V…5V. Also, several inputs and outputs are available for controlling and monitoring the device status.

Options • The power supplies of the series EA-PS 8000 DT are remotely controllable by using a personal computer via different isolated digital interfaces like RS232, CAN, USB, GPIB (IEEE) or Ethernet (upon request). The interface slot is accesible at the rear panel, making it easy to put a new interface or to replace an existing one.