Coaxial Cable 50Ω HMM Pulse Test System

  • Product No:Model 4702 HMM+
  • Manufacturer:Barth Electronics, Inc.

The Model 4702 HMM+™ is a completely new tester primarily intended for device level testing and produces a current waveform as specified in the IEC-61000-4-2, from a 50 ohm source impedance system.

The Barth Model 4702 HMM+50 Ω HMM Pulse Test System was designed and built to eliminate the common problems that are found with IEC gun testing. Gone are the interfering electromagnetic pulses that are induced with gun testing, and the system removes other undesirable effects that result from the gun’s separate ground return cable. The test system also solves the large gun tip interconnect issues, providing a very easy connection to test fixture boards.

  • This tester provides device level test data that allows users to evaluate the IEC current waveform protection level of their devices. We included failure identification by leakage current increases in the 4702 tester so precise pass/failure levels can be closely measured.

  • The 4702 HMM+™ provides a new and improved test connection method for making quantifiable and repeatable device level HMM measurements.

  • Convenient, precise, repeatable operation

  • Computer controlled for automated testing


  • Pulse Rise Time: 0.7 - 1.0 ns

  • IPEAK:3.75 A/kV* +/-10%
    I30ns:2.0 A/kV* +/-20%
    I60ns:1.0 A/kV* +/-20%

  • Voltage Range:500V-27kV*

  • Max Current:100A PEAK; = IEC gun current @ 27kV

  • Pulse Rate: ~10 test pulse series per minute

  • Leakage Voltage: 0V to 100V in 0.1V increments

  • Source Impedance: 50Ω

  • Load Impedance: Any load

  • Size: 19”W x 20.5”D x 11”H control unit, 18”H includes Tektronix TDS3052C

  • Weight: ~130lbs total system weight plus shipping materials