Power amplifier for vibration exciters Spektra PA 500 DM

Power amplifier PA 500 DM

The Power Amplifier PA 500 DM has been developed to drive any type of exciter requiring a 500 VA power amplifier with a load impedance of 4 Ω. It has a useable frequency range from 40 Hz to 60 kHz at full power or from DC to 200 kHz small signal; the harmonic distortion is very small. The power amplifier can tolerate temperature and supply line variations while maintaining excellent stability. Thereby, the product can be used as a voltage generator with low output impedance and a flat voltage frequency response, or as a current generator with high output impedance and a flat current frequency response. The maximum RMS output-current limit is adjustable. For standard applications, we recommend using the product in voltage mode

Features

• frequency range:
  40 Hz … 60 kHz full power
  DC … 200 kHz small signal
• power output, max. 500 VA into a 4 Ω resistive load
• high reliability operation
• switch between voltage and current mode
• phase shift (0° or 180°)
• variable gain control
• current limit control
• temperature protection
• multifunction OLED display

Applications

• modal testing shakers
• environmental testing systems
• calibration systems

Range of Use

• research and development departments in industry
• environment testing laboratories
• calibration laboratories
• universities and research institutes