The IDAX 300/350 Accessory calibration box CAL 300 AG-90010 is an insulation diagnostic instrument based on DFR (Dielectric Frequency Response), also known as FDS (Frequency Domain Spectroscopy). DFR technology is an established test procedure in laboratories that has been adapted for field use in the IDAX range of instruments. 

  • State-of-the-art measurement of moisture content, tanδ and oil conductivity using DFR (Dielectric Frequency Response) 
  • Easy-to-use: Software with automated measurement flow and analysis of test results 
  • “Traffic light” interpretation of test results 
  • Dedicated test procedures for power transformers, bushings and current transformers 
  • Automated individual temperature correction (ITC) for accurate comparison with reference data/tests 
  • Reliable measurements even in high-interference environments 
  • Interfaces to high voltage amplifiers 
  • Versions with or without on-board computer