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Martindale: CM69 Earth leakage applications 

ProfessionalElectrician
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The CM69 TRMS AC Leakage Clamp Meter is ideal for troubleshooting leakage currents when other clamps can’t, like tracking down the causes of nuisance RCD tripping.
Featuring a unique jaw design that minimises influence of adjacent current conductors and a class leading resolution of 1µA, the CM69 can precisely and reliably measure currents from under 0.1mA up to 60A. The CM69 features a unique jaw design which minimises the influence of adjacent current conductors enabling professionals to perform precise and reliable tests at very low currents.
The CM69 uses True RMS measurement and ensures that leakage currents can be identified and measured accurately even when due to harmonics. In addition, the design includes a switchable filter enabling repeatable periodic measurements at 50Hz for assessing insulation quality and deterioration without powering down the circuit
The advanced features and high resolution make the CM69 an essential live troubleshooting tool for all electricians enabling fast solutions to common problems from nuisance tripping of RCDs, through to identification of triplen neutral currents. The very low current capability means it can also be used to simplify appliance testing by measuring leakage currents through the earth conductor or by clamping around both live and neutral conductors to measure the differential leakage current.

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8 сен 2024

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Комментарии : 8   
@e5Group
@e5Group 3 года назад
This is a great explanation of the subject. 👍
@30mAkills
@30mAkills Год назад
Useful demo
@mf608
@mf608 2 года назад
this good explaining
@dennisfowler7873
@dennisfowler7873 2 года назад
Hi I have been searching for an answer for this question for over a year….if there is DC current leakage in a AC circuit which will saturate an AC type rcd….can the dc setting measure the dc leakage current in that circuit
@cengiz246
@cengiz246 3 года назад
4:20 harmonics
@gbelectricks
@gbelectricks 3 года назад
In my experience these clamps work well on paper, but in practice if an appliance, that is say plugged into a ring final circuit, has 45mA of leakage. How would you troubleshoot and diagnose the particular faulty appliance, when it is fed through a 30 mA rcd? Without bypassing the rcd (say in a split load board) as the rcd will instantly trip out before any useful measurements are taken and displayed on the clamp? Obviously Without using the unplug everything method and plug in one at a time, I’m specifically interested in using the clamp method alone, to diagnose as in the above scenario.
@miguelc_seeker
@miguelc_seeker 2 года назад
si trabajan excelente, yo poseo una MEGGER modelo DCM305E y mide desde los micro Amperios hasta 100 Amp, con su filtro de pasa bajos y es TRUE RMS verdadero , tiene certificado de calibración ...... igual las fluke ,Hioki, etc........ lo que pasa es que hay que comprar quipos buenos certificados y eso vale dinero...... otras marcas te ofrecen muchas prestaciones pero a la hora de usarlas no sirven 🤷🏻🤷🏻🤷🏻 por eso la confusión y malos diagnósticos a la hora de reparaciones eléctricas......hay que tener euipos certificados
@miguelc_seeker
@miguelc_seeker 6 месяцев назад
@@mpkkflima 👍👍
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