All Questions
19
questions
1
vote
1
answer
54
views
Conducted emission test setup for USB powered device with no mains connection
I have a medical device that is a USB client and has no internal power source/battery. It draws 5V from USB and also communicates to the Host via same interface. Device is intended to be used only ...
- 13
1
vote
1
answer
232
views
CE Compliance: what is the limit of self-declaration for Industrial Control Panel?
We are a system integrator making custom electrical control cabinets. This is our first time on making panels for European customer, and of course they mandated the CE marking.
The control panel they ...
- 11
4
votes
2
answers
455
views
Declaration of conformity to EMC Directive
We need to declare CE compliance of a system consisting of pumps, valves, sensors and control cabinets. I am dealing with the EMC element of the certification.
I have collected the manufacturer's ...
- 41
0
votes
0
answers
112
views
EN55032 Conducted Emissions - 40cm From Vertical Reference Ground Plane
I've always wondered why we need to position the EUT 40cm from the metallic wall for conducted emissions testing. Does it have something to do with the EUT capacitively coupling the higher end of the ...
1
vote
1
answer
161
views
Setting up an EMI test bench: Attenuator
I am in the midst of setting up an EMC test bench for Conducted Emissions testing. This question goes out to the EMC experts regarding the essential equipment needed for the same.
Currently available:
...
- 57
2
votes
1
answer
463
views
CE certification of new project Radio Equipment Directive
I work at a certification Institute of construction products, but sometimes we do consultancy on other related products. Recently, a manufacturer asked us a regulatory/certification study on his new ...
0
votes
2
answers
154
views
A question about CE marking
If an electrical enclosure is interfaced with CE marked devices, does it still require assessments before using CE marking on it?
So if one makes an enclosure using a CE marked PSU and other CE marked ...
- 4,333
1
vote
1
answer
628
views
Regarding validity of the EMC/EMI & safety test reports containing withdrawn IEC Standards for CE & UKCA declaration
I do have a question regarding the validity of the EMI/EMC & Safety test reports of the products which do have the withdrawn IEC standards.
Like for an Example: If we do have tested the products ...
- 103
5
votes
2
answers
549
views
Questions about EMC compliance
I am working within an electronics development department. My job is to design electronic cards on behalf of clients. Some cards end up in devices which are commercialized by our clients in Europe. I ...
- 519
2
votes
2
answers
224
views
Which products require EMC certificate?
What are the guidlines (or where can I find them) for which products require EMC testing certificate? I know that this determined per country, so for starters let's go with the US.
My product contains ...
- 159
0
votes
1
answer
284
views
Electromagnetic compatibility and external sensors
I have two main questions regarding the electromagnetic compatibility (EMC).
If I develop an electronical device and market it in Europe, it needs to be EMC-compliant, right?
How come I can buy ...
- 131
0
votes
2
answers
525
views
How can I easiest (cheapest) I'm within EMC regulations?
I'm a hobbyist that's currently developing a simple clock and hoping to make it into a small scale sellable product. It's a simple 5V USB clock with a ATTiny84 8MHz clock, a RTC-module and some WS2813 ...
0
votes
3
answers
211
views
Viable alternative for expensive MLCC capacitor?
I'm thinking of building and selling a product which uses a DC-DC isolator. I've been prototyping with Recom RI3 3W Isolated DC-DC Converter Through Hole, Vin 5 V dc, Vout 9V dc, I/O isolation 1kV. ...
- 289
0
votes
2
answers
147
views
Is my simple atmega2560 based product exempt from EMC testing?
I have designed a product that is essentially a USB HID device for a computer game. It consists of several on off switches and 5v servos run by an atmega2560, all sealed and enclosed in a plastic case....
- 3
6
votes
2
answers
506
views
ESD/EMI Design for CE, Recommendation seems wrong from test lab
I have designed a product for a customer, that now needs to pass UL/FCC/CE Testing, It passed UL & FCC but failed CE for both 8kv ESD and EMI. The Chinese test lab my client went through sent me ...
- 3,536