EMI Interface Adapters
OnFILTER EMI Interface Adapter (MSN17 comes with AU/NZ 10A Mains Plug Cable)
Do you know how much EMI noise is on your earth & power lines?
As it is obviously a bad idea to connect your oscilloscope or spectrum analyzer directly to your power line, using an OnFILTER Interface Adapter makes it possible.
With your oscilloscope (a high-speed digital storage scope is recommended), you will be able to observe the transient signals on your power lines. This is often much more beneficial than using a spectrum analyzer, because majority of EMI signals on power lines are transient (spikes and alike) which spectrum analyzers can easily miss.
OnFILTER's EMI interface adapters not only provide galvanic separation from high mains' voltages, but also a straight path for high-frequency signals so that you can connect your sensitive instrument to live power lines for analysis and quantification.
There are plug-in and hand-held adapters which can measure both differential ("normal") and common-mode noise.
MSN17 in action with CLEANSWEEP Filter
Typical applications for EMI Adapters include:
- Conducted emission measurements
- Compliance with SEMI E176 Standard and IPC-A-610 EOS section
- EMI audits, diagnostics and troubleshooting
EMI Adapters enable measurements of Power Line Communication (PLC) / Internet over Mains, which is an intrinsic part of Smart Power, including the following standards (depending on model):
Homeplug AV and AV2 -- G.hn Wave 2 -- CENELEC EN50065 (all bands) -- IEEE 1902.2 -- ARIB (Japan) -- FCC
As a part of PLC, EMI Adapters are great tools for data security since they allow monitoring of what happens through the "back door of your computers and servers / power lines.
OnFILTER EMI adapters have true balanced input allowing for measurement of signals independent of ground loops or whether your instrument is grounded or not.
How to select the right EMI Adapter? Start with why would you need to conduct measurements. If your interest is measuring high-frequency signals only in electrical outlets, there is no need to try to fit and to hold test probes in an outlet - a plug-in model would be the best choice. If your interests are more diverse and you would like to know EMI levels on ground, in electrical panels, inside equipment, and elsewhere, a model with test leads would be more appropriate.
MSN15 and MSN17 are the newer models with extended frequency range up to 200 MHz which covers not only EMI on power lines and ground, but also majority of power line communication (PLC) standards. MSN15 and MSN17 are certified for IEC61010-1 (Third Edition), 2010; IEC 61010-2-031.
MSN01 and MSN12 are time-proven models with solid performance for basic EMI measurements on AC power and ground that served as a foundation for MSN15 and MSN17 design. For new applications we encourage use of MSN15 or MSN17. If you are already a user of MSN01 or MSN12 and would like to add the same model, MSN01 and MSN12 will still be available.
