Hi All,
I was thinking of doing a morning's presentation of just live experiments, no
slides, just a series of live experiments that most engineers will find
interesting, and may demonstrate that circuits and measurements do not always
act like we think they do. Here is a proposed list:
Experi
I agree that your procedures are what is necessary.
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Best wishes John Woodgate OOO-Own Opinions Only
www.woodjohn.uk
Rayleigh, Essex UK
I hear, and I forget. I see, and I remember. I do, and I understand.
Xunz
John:
In this case I would ask manufacturer (thru your purchasing channel)
regarding marking requirements agreed as a certification requirement from
the UL. That should be condition of acceptability. Have that letter or
document available at time of UL inspection.
Other way, I handed was to as
Hi John;
Is this battery used in a higher-level product? Is your problem that a
certifying agency won't complete the certification, or that the end product
is already certified, but failing FUS/ inspections at the manufacturer
because they can't verify the battery is UR?
PS: When you say UR, are
John, the original manufacturer is allowed to Mark the shipping box instead
of the part. To buy the battery from someone else, that someone else needs
to be a UL Recognized repackager. A repackager is allowed to break the
cells into smaller boxes and Mark the smaller shipping boxes with the UL m
Hi guys,
We are having a heck of time proving a button cell is actually UR - CR2354.
UL IQ says it's UR. The Battery is not marked. The Guide Card allows the
marking to be on "packaging". Our customer purchases the CR2354 on-line. The
packaging it comes in is not marked. Is it possible the
I have found Fischer Custom Communication probes to be of the highest quality.
I have found that with some other probes, significant E-field response is a
problem, and you need to measure E-field response yourself. I have seen current
probes with an E-field response as much as the intended H-fie
Greetings Everyone.
To validate a Surge Immunity Generator and CDN, the IEC 61000-4-5 standard
refers to a "Current Probe" for measuring the Short-Circuit Current. I
wish to buy one.
Can anyone recommend a model and supplier/manufacturer of a current probe
that they like and will do a good job
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