Selective Level Meter / PLC Analysis

  • Product No:SLM3505
  • Manufacturer:Newtons4th Ltd  (N4L)

The SFRA45 is a Sweep Frequency Response Analyzer with a bandwidth of 5Hz to 45MHz, the SFRA45 offers a fully portable solution for the field of SFRA (Sweep Frequency Response Analysis) which fully complies with IEC60076-18 – Power Transformers Part 18 – Measurement of frequency response.

Featuring an inbuilt colour LCD screen as well as being battery powered, the tablet style instrument can be used with or without PC Software. The dedicated software available (SFRAComm) enables the user to create databases from which historical transformer sweeps can be recalled and compared to current sweeps for analysis. This offers the ability to perform the most common sweep frequency response analysis technique “Fingerprint Comparison” as well as all other comparison techniques.


  • Frequency range 5Hz to 5MHz 

  • Selectable inputs up to 300 Vpk

  • Low and High level generators 

  • Dual frequency SLM mode

  • Impedance analyzer 

  • VSWR Meter

  • Oscilloscope mode  Line trap/tuner test

  • Mains / 12 volt dc / internal battery operation 

  • Supplied complete with rugged flight case