Laplace Instruments Products: Immunity

Laplace supplies test equipment for most aspects of immunity testing both radiated and conducted.

IEC61000-4-3 Radiated RFI immunity.

IEC61000-4-6 Conducted RFI immunity.

We also supply........

IEC61000-4-2 ESD simulator

IEC61000-4-4, IEC61000-4-5, IEC61000-4-8, IEC61000-4-9, IEC61000-4-11 Conducted immunity

For all requirements, Laplace can supply systems to meet domestic, industrial and most other standards.

Radiated RFI to IEC61000-4-3

The radiated test equipment comprises:

  • RF3000 and RF6000 signal generator (Synthesiser). Fully compliant with IEC61000-4-3, these PC controlled synthesisers include an exceptionally powerful Windows package for control, programming, monitoring, display and logging of results.
  • A range of power amplifiers. Standard outputs from 8W to 70W continous. Provides ample power to create over 20V/m in any small efficient test cell.  Higher powered amplifiers are available if required.
  • LaplaCell 300/2 This benchtop cell is a completely screened chamber in which uniform fields can be created with input. Designed for EUT sizes up to 30cm cube. Internal useable volume is 45 x 35 x 30 cm.
    For larger products the LaplaCell 600 can accept items up to 60 x 60 x 60 cm and is capable of testing a 19 inch rack mounting unit 13U high.

    The above range provides a choice in frequency range ( up to 1GHz, 3GHz, or 6GHz) and cell size. Selecting the items to suit your own requirements will provide you with a complete unified package for RFI immunity testing. BONUS: the cell can be used in conjunction with an EMC analyser such as the SA1002 or SA3000 to provide an emissions measurement system. One cell provides the host environment for an integrated immunity and emissions test system!


    Conducted RFI to IEC61000-4-6

    The RFIC system provides a complete solution. This comprises:

      • RFIC46 Synthesiser, including:
        • Signal generator
        • Control software
        • PC interface and windows application software
      • RF0250 Power amplifier
      • Plus a range of Versatile and Enhanced CDNs to suit the application (no calibration fixtures required)

     The 'Enhanced' system offers benefits in terms of speed, accuracy and cost effectiveness. However, be aware that this system can be used in a fully compliant conventional manner but when used in the 'Enhanced' mode does not strictly adhere to the IEC standard. Click here for a comparison of the conventional and enhanced techniques.


    Test systems are available for other immunity tests as follows:



    The new AXOS8 compact immunity test system integrates several tests into one compact and integrated system.

    It combines 7 kV Surge combination wave, 7kV ring wave, 7kV telecom wave, 5kV EFT/Burst and AC/DC Dips & Interrupts, along with an integrated single-phase coupling / decoupling network into one compact test system. This allows quick and completely automated testing to the most common IEC, EN, ANSI, ITU, IEEE and UL standards.