Accredited calibration · EFT/burst generators

EFT/burst generator calibration to IEC 61000-4-4, in your lab

Pulse amplitude, rise time, impulse duration, burst duration, burst period and repetition frequency measured on site under LAB Support Ltd.'s A2LA accredited ISO/IEC 17025 scope, by the LAB Support Southeast Asia team.

Book an EFT calibration Full accredited scope
Why it matters

Burst pulses are fast enough that only the waveform tells the truth

An EFT generator delivers 5 ns rise-time pulses at repetition rates up to 100 kHz. Its display shows the set voltage, not the pulse the coupling network actually delivers. IEC 61000-4-4 defines the waveform into both a 50 ohm and a 1000 ohm load, with tolerances on amplitude, rise time and duration, and requires the generator to be verified against them. The measurement needs a high-bandwidth oscilloscope, calibrated attenuators and the standard's loads, which the team brings to your bench.

  • Peak amplitude into 50 ohm and 1000 ohm loads at each test level
  • Rise time, impulse duration, burst duration and burst period
  • Repetition frequency from 1 kHz to 1 MHz
  • Capacitive coupling clamp output checked with the generator
ParameterRangeCommon methods and standards
Pulse peak amplitude, 50 ohm and 1000 ohm load0.1 kV to 5 kVIEC/EN 61000-4-4, oscilloscope with calibrated attenuator
Rise time2 ns to 7 nsIEC/EN 61000-4-4, oscilloscope
Impulse duration30 ns to 170 nsIEC/EN 61000-4-4
Burst duration and burst period0.5 ms to 400 msIEC/EN 61000-4-4
Repetition frequency1 kHz to 1 MHzIEC/EN 61000-4-4, oscilloscope
Coupling clamp and CDN outputWith the generatorIEC/EN 61000-4-4 Annex A and B

The methods and standards shown are the ones most commonly requested. Within each parameter and range listed on the accredited scope, other calibration methods and standard editions can be supported under the flexible-scope provisions of LAB Support's A2LA accreditation. The measurement uncertainty for each parameter is stated on the certificate. Field calibration is included in the scope for every line above.

Instruments we calibrate

Models we calibrate most often

From our own calibration records. Any instrument within the scope can be calibrated; these are the ones we see most.

Teseq NSG 3040, NSG 3040A Teseq NSG 3060, NSG 3060A Teseq FTM 3425, CWM 3450 modules EM TEST compact NX5, NX7 EM TEST burst NX8, EFT 500 Haefely AXOS 5, AXOS 8 EMC Partner IMU4000, Transient 3000 Teseq CDN 3041, 3043, 3061, 3063 Haefely IP4A coupling clamp Noiseken FNS series and others
On site

How the visit runs

Send the listGenerator model, coupling networks fitted and the test levels you use.
We come to youThe team brings a high-bandwidth oscilloscope, calibrated attenuators, 50 ohm and 1000 ohm loads and the fixtures.
Measure in placeWaveforms are captured at each level and polarity into both loads, plus timing parameters and repetition frequency.
Certificate on siteISO/IEC 17025 certificate with each parameter against the IEC tolerance, uncertainty and traceability.
Frequently asked

Questions we are asked

Do you verify the generator with its coupling network?

Yes. IEC 61000-4-4 requires the waveform to be checked at the output of the coupling/decoupling network as well as at the generator, and the capacitive clamp with its transducer plate. All three are done at the same visit.

Which editions of IEC 61000-4-4 are covered?

The current edition and earlier editions in use by your procedures. Tell us which your test method references and the certificate states it.

Can combined generators be calibrated in one visit?

Yes. Compact generators such as the NSG 3040 and compact NX5 combine burst, surge, dips and ring wave. All functions are calibrated in the same visit under the relevant standards.

Which countries do you cover on site?

Malaysia, Singapore and Vietnam, with Penang as the base. Other locations on request.

Tell us what you need to test

We reply within one working day with a quote or a plan.

Contact us