Accredited calibration · Surge generators

Surge generator calibration to IEC 61000-4-5, in your lab

Open-circuit voltage, short-circuit current, front time, time to half value and phase shifting of combination wave and ring-wave generators measured on site under LAB Support Ltd.'s A2LA accredited ISO/IEC 17025 scope.

Book a surge calibration Full accredited scope
Why it matters

A surge generator is defined by two waveforms it must produce at once

The 1.2/50 us open-circuit voltage and the 8/20 us short-circuit current define the combination wave. Both are specified with tolerances at the generator output and, with coupling networks, at the EUT port. Ring-wave generators to IEC 61000-4-12 and ANSI C62.45 add their own oscillation frequency and decay. Drift in the impulse capacitors or wave-shaping resistors changes the energy delivered to your product without changing the display.

  • Open-circuit voltage to 8 kV and short-circuit current to 4 kA
  • Front time, time to half value and duration for both waveforms
  • Phase-angle synchronisation to the mains
  • Ring-wave and damped-oscillatory generators, and the CDN outputs
ParameterRangeCommon methods and standards
Open-circuit voltage peak0.001 kV to 8 kVIEC/EN 61000-4-5, ANSI C62.41.2, oscilloscope with HV divider
Short-circuit current peak0.001 kA to 4 kAIEC/EN 61000-4-5, current transducer, oscilloscope
Front time, rise time, time to half value0.5 ns to 60 sIEC/EN 61000-4-5
Open-circuit phase shifting0 to 360 degreesIEC/EN 61000-4-5
Ring-wave voltage, current and oscillation frequency100 kHz to 2 MHzIEC/EN 61000-4-12, ANSI C62.45
CDN output, line to line and line to earthWith the generatorIEC/EN 61000-4-5 clause 6

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 3060 with CWM 3450 / 3451 Teseq NSG 3150 EM TEST VCS 500N10, N12 EM TEST compact NX5, NX7 Haefely PSURGE 8000, AXOS EMC Partner IMU4000, IMU-MGS EMC Partner Transient 3000 Noiseken LSS series EM TEST OCS 500N6 ring wave and others
On site

How the visit runs

Send the listGenerator model, coupling networks and the surge levels and coupling modes you use.
We come to youThe team brings a calibrated high-voltage divider, current transducer, oscilloscope and the loads the standard requires.
Measure in placeOpen and short-circuit waveforms are captured at each level, polarity and phase angle, at the generator and at the CDN.
Certificate on siteISO/IEC 17025 certificate with each waveform parameter against the tolerance, uncertainty and traceability.
Frequently asked

Questions we are asked

Do you measure at the CDN output as well?

Yes. IEC 61000-4-5 sets separate requirements at the EUT port of the coupling/decoupling network, so line-to-line and line-to-earth waveforms are verified there as well as at the generator output.

Can telecom and 10/700 us surge generators be calibrated?

Yes. Telecom surge modules such as the EM TEST TSS 500N and Teseq telecom CDNs are calibrated for the 10/700 us waveform at the same visit.

What about ring-wave generators?

Ring-wave and damped-oscillatory generators are calibrated to IEC 61000-4-12 and IEC 61000-4-18, including oscillation frequency and decay, and ANSI C62.45 where required.

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.

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