• The Tektronix PS280 is a portable power supply used to send out regulated electricity for tests and experiments. The power supply has three different outputs, one at 5 Volts, used to power logic circuits, and two variable voltage outputs that can be used for any experiment requiring direct current electricity.
  
  

Physical

• The power supply measures 10 inches wide, 13.2 inches deep and 5.7 inches high. The unit also weighs in at 25.4 pounds. It can operate in temperatures ranging from 0 to 40 degrees Celsius, with a relative humidity of 80 percent, and can be stored in temperatures ranging from -10 to 70 degrees Celsius, with a relative humidity of 70 percent.
  
  

Voltage and Regulation

• The PS280 has three power outputs, one 5 Volt output and two 0 to 30 Volt variable outputs. All three outputs provide a direct current. The 5 V output has a variance of .25 V, operates at 3.0 Amps, has a line regulation of less than or equal to 5 millivolts, a load regulation of .2 percent plus 3 milliamps and a ripple of less than or equal to 2 mV. The variable outputs operate at 2.0 Amps, have a line regulation and load regulation of less than or equal to .01 percent, and a ripple of less than or equal to 2 mV.
  
  

Other Characteristics

• The PS280 has an insulation rating between the chassis and terminal of 20 Megaohms, and one between the chassis and AC cord of 30 Megaohms. The PS280 has a maximum power rating of 386 Volt amperes and 300 Watts. The unit also has two 3 1/2-digit LED displays on the front, used to track the voltage for the variable outputs.
  
  

Compliances

• The PS280 meets the EN 55011 regulation on Class B emissions, the EN 60555-2 regulation on AC power line harmonic emissions, and the IEC 801-2,3,4,5 regulations on discharge, surge and burst immunity. The PS280 also meets the HD401 S1 regulation on safety requirements for low-voltage electronic measuring apparatuses.