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Re: Damage to electronic devices as raised about Digital Electronic Vernier Calipers.
David - there is no simple Y or N, sorry.
But since you asked -
"Then the TIG Arc causes/releases a large amount of unrefined/uncontrolled
Radio Frequency (RF) signals." Y N Maybe Sort of, it is actually a spectrum Y
"This then swamps and damages any
electronics in the vicinity. Am I correct? Y Maybe Maybe
The power of the TIG arc (welder) and the distance to the piece of
electronic equipment, increases or decreases the risk of damage. Generally Y
Does that mean MIG is not so bad, as it has a sacrificial electrode? N Doesn't matter
Any arc (mig, tig, plasma cutters, arc lamps in theaters, Jacob's ladders, Tesla coils, Neon lights, spark plugs, etc.) will generate electromagnetic radiation. Whether the electrode is consumable or not is immaterial. It is the arc which is formed when the voltage between the electrodes is enough that the electrons on one electrode can jump to the other that causes the radiation.
The strength of electromagnetic field is much higher in some arcs than others.
The sensitivity of the electronic device will vary without any way to quantify.
The error induced in an electronic device might be a simple as a color changing from FFFFFF to FFFEFF (which your eye could not notice) or it might change something where that bit makes a machine instead of moving 0.010mm it thinks the move should be 10.01mm.
When there is excess radiation near an electronic circuit (which is more susceptible than some other things), the radiation can enter the circuit and create voltage levels that make the circuit do unpredictable things. That is the annoying side of the problem. If there is enough radiation that causes the circuit to become unstable then damage might occur. Then the next level is when the radiation is even higher and the circuit is damaged directly by the induced current. Then there is the case of more severe radiation, such as an EMP (electro-magnetic pulse), which generates enough radiation that motors and transformers might see excessive current and become damaged.
On Mon, Dec 9, 2024 at 3:17?PM DAVID WILLIAMS via <d.i.williams= [email protected]> wrote: Dear All,
I know this is partially off the original topic. But the possibility that certain workshop equipment may affect or even damage everyday equipment, viz a flat screen TV etc., seems very important. So I hope you will understand my request, as I have no knowledge of such matters. Thus may I have some detailed advice.?
I am not into Tungsten Inert Gas (TIG) welding, ?(as mentioned, it’s technically called Gas Tungsten Arc Welding, GTAW - thank you for the info.) I only undertake a very limited amount of Metal Inert Gas (MIG) and Gas, plus I did do some ‘old style’ Arc welding some years ago.
So, presumably as it says (TIG) has a non eroding electrode. (Plus an inert consumable rod.)? Then the TIG Arc causes/releases a large amount of unrefined/uncontolled Radio Frequency (RF) signals. This then swamps and damages any electronics in the vicinity. Am I correct?? A simple Y or N will be more than OK, thankyou.
The power of the TIG arc (welder) and the distance to the piece of electronic equipment, increases or decreases the risk of damage. Again correct? ?(Presumably the inverse square law applies. So the manufacturer could(?) give guidance about the risks?)?
Does that mean MIG is not so bad, as it has a sacrificial electrode? Again, I have no idea. Anyone know??
Plus - ?Thanks for the info on the solar storms. Very interesting. (Everyday is a day at school, even when you have seen a lot of Summers.)
Thanks in anticipation,
David Williams (From across the Pond. Nr Oxford.)?
On 9 Dec 2024, at 20:59, mike allen <animal@...> wrote:
?
Welders & flat screen TV's too . I had a bud that spent many
thousand $$ on a Lincoln water cooled TIG welder . First time he
used it took out his fairly new flatscreen TV . Good thing he was
between wife's when that happened .
animal
On 12/9/24 11:24 AM, Bruce J via
wrote:
Well it’s not just welders and LED lights…
" SOLAR STORMS ARE DRIVING FARMERS CRAZY:?Planting
season is a hectic time for farmers. For many, it means
working through the night using GPS-guided tractors to plant
thousands of acres in a short period of time. The season was
in full swing on May 10, 2024, when the biggest solar storm in
decades struck Earth.?
"Our
tractors acted like they were demon possessed," says Elaine
Ramstad, a Spaceweather.com reader and aurora chaser who helps
out on a family farm in Northern Minnesota. "All my cousins
called me during the May 10th storm to tell me that 'my
auroras' were driving them crazy while they were planting.”
|
|
Probably not Johannes’ problem, though…:-)
My shop is lit by LED bulbs or fixtures I got at Costco 4
or 5 years back to replace the old flickering ?fluorescent
ones; but I haven’t noticed any issues in use ?with my
calipers until the batteries get low, which produces just
those kinds of weird issues.?
When I GTAW the HF start really messes with all of my
DRO's, and digital calipers/micrometers. ? It turns
them on, turns them off, the displays show erroneous
readings.? I thought they were possessed until I figured
out it was the TIG's HF start that was causing the
problem.? ?
--?
Bruce Johnson
The less a man knows about how sausages and laws are
made, the easier it is to steal his vote and give him
botulism.
--
Buffalo John
Re: Digital Electronic Vernier Caliper
Oh.? Sounds like you might be an amateur radio operator?
Stan
KM4HQE
On 12/9/24 17:59, Prasad via groups.io
wrote:
toggle quoted message
Show quoted text
This brings back some old memories. Soon
after I retired, I set up my hobby shop in the basement and
also my ham radio equipment about 20 feet away from the lathe
and the mini-mill. Soon I added three axis digital scales to
my mill. That setup worked fine until I was not there. I
recall, many times I took a break from machining and went to
operate my radio for a while. When I came back to the
mini-mill I found one or two of the axes displays were
different from what they were before I went away. That
happened eventhough I never exceeded 25 watts power for
transmitting and had excellent SWR and a good Coax cable. I
was confused at first but soon I found out what caused it.
?
I have since moved the radios to my
bedroom and it is now a forgotten problem.?
?
Just reminiscing.
Prasad
Eastern PA, near Philly?
|
Re: Digital Electronic Vernier Caliper
This brings back some old memories. Soon after I retired, I set up my hobby shop in the basement and also my ham radio equipment about 20 feet away from the lathe and the mini-mill. Soon I added three axis digital scales to my mill. That setup worked fine until I was not there. I recall, many times I took a break from machining and went to operate my radio for a while. When I came back to the mini-mill I found one or two of the axes displays were different from what they were before I went away. That happened eventhough I never exceeded 25 watts power for transmitting and had excellent SWR and a good Coax cable. I was confused at first but soon I found out what caused it.
?
I have since moved the radios to my bedroom and it is now a forgotten problem.?
?
Just reminiscing.
Prasad
Eastern PA, near Philly?
|
Re: Damage to electronic devices as raised about Digital Electronic Vernier Calipers.
??? Here's the real time experience . My bud that lost the TV MIG
welded just about every day & never had any problems with
anything cept maybe some rusty metal . Like mentioned he was using
the Tig for the first . The TIG welder was maybe 15-18 feet as the
crow flies from his TV set . His house is built of Slump block so
there was a grouted wall right next to the welder & between
the welder & the? TV , so there was 6" + of some pretty heavy
material between the 2 units . After the fact he did some
re-reading of the manual & they mentioned could cause
problem,s with electronics . Moral of his story read & re=read
the & then rinse & repeat the manual . I went over after
& ran him a new circuit with the welder having it's own
breaker panel & ground rod . Now-a-days he unplugs his
electronics before he fires up the TIG .
??? That's just about as factual as I can get on this & hope
it helps to answer yer questions . He has since remarried? &
proceeds with caution? on a daily basis .
??? thanks
??? animal
On 12/9/24 3:16 PM, DAVID WILLIAMS via
groups.io wrote:
toggle quoted message
Show quoted text
Dear All,
I know this is partially off the original topic. But the
possibility that certain workshop equipment may affect or even
damage everyday equipment, viz a flat screen TV etc., seems very
important. So I hope you will understand my request, as I have
no knowledge of such matters. Thus may I have some detailed
advice.?
I am not into Tungsten Inert Gas (TIG) welding, ?(as
mentioned, it’s technically called Gas Tungsten Arc Welding,
GTAW - thank you for the info.) I only undertake a very limited
amount of Metal Inert Gas (MIG) and Gas, plus I did do some ‘old
style’ Arc welding some years ago.
So, presumably as it says (TIG) has a non eroding electrode.
(Plus an inert consumable rod.)?
Then the TIG Arc causes/releases a large amount of
unrefined/uncontolled Radio Frequency (RF) signals. This then
swamps and damages any electronics in the vicinity. Am I
correct??
A simple Y or N will be more than OK, thankyou.
The power of the TIG arc (welder) and the distance to the
piece of electronic equipment, increases or decreases the risk
of damage. Again correct? ?(Presumably the inverse square law
applies. So the manufacturer could(?) give guidance about the
risks?)?
Does that mean MIG is not so bad, as it has a sacrificial
electrode? Again, I have no idea. Anyone know??
Plus - ?Thanks for the info on the solar storms. Very
interesting. (Everyday is a day at school, even when you have
seen a lot of Summers.)
Thanks in anticipation,
David Williams
(From across the Pond. Nr Oxford.)?
?
Welders & flat screen TV's too . I had a bud that
spent many thousand $$ on a Lincoln water cooled TIG
welder . First time he used it took out his fairly new
flatscreen TV . Good thing he was between wife's when
that happened .
animal
On 12/9/24 11:24 AM, Bruce J
via groups.io wrote:
Well it’s not just welders and LED lights…
" SOLAR STORMS ARE DRIVING FARMERS
CRAZY:?Planting
season is a hectic time for farmers. For many, it
means working through the night using GPS-guided
tractors to plant thousands of acres in a short
period of time. The season was in full swing on May
10, 2024, when the biggest solar storm in decades
struck Earth.?
"Our
tractors acted like they were demon possessed," says
Elaine Ramstad, a Spaceweather.com reader and aurora
chaser who helps out on a family farm in Northern
Minnesota. "All my cousins called me during the May
10th storm to tell me that 'my auroras' were driving
them crazy while they were planting.”
|
|
Probably not Johannes’ problem, though…:-)
My shop is lit by LED bulbs or fixtures I got at
Costco 4 or 5 years back to replace the old
flickering ?fluorescent ones; but I haven’t noticed
any issues in use ?with my calipers until the
batteries get low, which produces just those kinds
of weird issues.?
When I GTAW the HF start really messes with
all of my DRO's, and digital
calipers/micrometers. ? It turns them on,
turns them off, the displays show erroneous
readings.? I thought they were possessed until
I figured out it was the TIG's HF start that
was causing the problem.? ?
--?
Bruce Johnson
The less a man knows about how sausages and
laws are made, the easier it is to steal his
vote and give him botulism.
Damage to electronic devices as raised about Digital Electronic Vernier Calipers.
Dear All,
I know this is partially off the original topic. But the possibility that certain workshop equipment may affect or even damage everyday equipment, viz a flat screen TV etc., seems very important. So I hope you will understand my request, as I have no knowledge of such matters. Thus may I have some detailed advice.?
I am not into Tungsten Inert Gas (TIG) welding, ?(as mentioned, it’s technically called Gas Tungsten Arc Welding, GTAW - thank you for the info.) I only undertake a very limited amount of Metal Inert Gas (MIG) and Gas, plus I did do some ‘old style’ Arc welding some years ago.
So, presumably as it says (TIG) has a non eroding electrode. (Plus an inert consumable rod.)? Then the TIG Arc causes/releases a large amount of unrefined/uncontolled Radio Frequency (RF) signals. This then swamps and damages any electronics in the vicinity. Am I correct?? A simple Y or N will be more than OK, thankyou.
The power of the TIG arc (welder) and the distance to the piece of electronic equipment, increases or decreases the risk of damage. Again correct? ?(Presumably the inverse square law applies. So the manufacturer could(?) give guidance about the risks?)?
Does that mean MIG is not so bad, as it has a sacrificial electrode? Again, I have no idea. Anyone know??
Plus - ?Thanks for the info on the solar storms. Very interesting. (Everyday is a day at school, even when you have seen a lot of Summers.)
Thanks in anticipation,
David Williams (From across the Pond. Nr Oxford.)?
toggle quoted message
Show quoted text
On 9 Dec 2024, at 20:59, mike allen <animal@...> wrote:
?
Welders & flat screen TV's too . I had a bud that spent many
thousand $$ on a Lincoln water cooled TIG welder . First time he
used it took out his fairly new flatscreen TV . Good thing he was
between wife's when that happened .
animal
On 12/9/24 11:24 AM, Bruce J via
groups.io wrote:
Well it’s not just welders and LED lights…
" SOLAR STORMS ARE DRIVING FARMERS CRAZY:?Planting
season is a hectic time for farmers. For many, it means
working through the night using GPS-guided tractors to plant
thousands of acres in a short period of time. The season was
in full swing on May 10, 2024, when the biggest solar storm in
decades struck Earth.?
"Our
tractors acted like they were demon possessed," says Elaine
Ramstad, a Spaceweather.com reader and aurora chaser who helps
out on a family farm in Northern Minnesota. "All my cousins
called me during the May 10th storm to tell me that 'my
auroras' were driving them crazy while they were planting.”
|
|
Probably not Johannes’ problem, though…:-)
My shop is lit by LED bulbs or fixtures I got at Costco 4
or 5 years back to replace the old flickering ?fluorescent
ones; but I haven’t noticed any issues in use ?with my
calipers until the batteries get low, which produces just
those kinds of weird issues.?
When I GTAW the HF start really messes with all of my
DRO's, and digital calipers/micrometers. ? It turns
them on, turns them off, the displays show erroneous
readings.? I thought they were possessed until I figured
out it was the TIG's HF start that was causing the
problem.? ?
--?
Bruce Johnson
The less a man knows about how sausages and laws are
made, the easier it is to steal his vote and give him
botulism.
Re: Digital Electronic Vernier Caliper
Welders & flat screen TV's too . I had a bud that spent many
thousand $$ on a Lincoln water cooled TIG welder . First time he
used it took out his fairly new flatscreen TV . Good thing he was
between wife's when that happened .
animal
On 12/9/24 11:24 AM, Bruce J via
groups.io wrote:
toggle quoted message
Show quoted text
Well it’s not just welders and LED lights…
" SOLAR STORMS ARE DRIVING FARMERS CRAZY:?Planting
season is a hectic time for farmers. For many, it means
working through the night using GPS-guided tractors to plant
thousands of acres in a short period of time. The season was
in full swing on May 10, 2024, when the biggest solar storm in
decades struck Earth.?
"Our
tractors acted like they were demon possessed," says Elaine
Ramstad, a Spaceweather.com reader and aurora chaser who helps
out on a family farm in Northern Minnesota. "All my cousins
called me during the May 10th storm to tell me that 'my
auroras' were driving them crazy while they were planting.”
|
|
Probably not Johannes’ problem, though…:-)
My shop is lit by LED bulbs or fixtures I got at Costco 4
or 5 years back to replace the old flickering ?fluorescent
ones; but I haven’t noticed any issues in use ?with my
calipers until the batteries get low, which produces just
those kinds of weird issues.?
When I GTAW the HF start really messes with all of my
DRO's, and digital calipers/micrometers. ? It turns
them on, turns them off, the displays show erroneous
readings.? I thought they were possessed until I figured
out it was the TIG's HF start that was causing the
problem.? ?
--?
Bruce Johnson
The less a man knows about how sausages and laws are
made, the easier it is to steal his vote and give him
botulism.
Re: Digital Electronic Vernier Caliper
Well it’s not just welders and LED lights…
" SOLAR STORMS ARE DRIVING FARMERS CRAZY:?Planting season is a hectic time for farmers. For many, it means working through the night using GPS-guided tractors to plant thousands of acres in a short period of time. The season was in full swing on May 10, 2024, when the biggest solar storm in decades struck Earth.?"Our tractors acted like they were demon possessed," says Elaine Ramstad, a Spaceweather.com reader and aurora chaser who helps out on a family farm in Northern Minnesota. "All my cousins called me during the May 10th storm to tell me that 'my auroras' were driving them crazy while they were planting.”
| |
Probably not Johannes’ problem, though…:-)
My shop is lit by LED bulbs or fixtures I got at Costco 4 or 5 years back to replace the old flickering ?fluorescent ones; but I haven’t noticed any issues in use ?with my calipers until the batteries get low, which produces just those kinds of weird issues.?
On Dec 9, 2024, at 4:40?AM, flyfishingdude9 via groups.io <flyfishingdude9@...> wrote:
When I GTAW the HF start really messes with all of my DRO's, and digital calipers/micrometers. ? It turns them on, turns them off, the displays show erroneous readings.? I thought they were possessed until I figured out it was the TIG's HF start that was causing the problem.? ?
--?
Bruce Johnson
The less a man knows about how sausages and laws are made, the easier it is to steal his vote and give him botulism.
Re: Digital Electronic Vernier Caliper
When I GTAW the HF start really messes with all of my DRO's, and digital calipers/micrometers. ? It turns them on, turns them off, the displays show erroneous readings.? I thought they were possessed until I figured out it was the TIG's HF start that was causing the problem.? ?
|
Re: Digital Electronic Vernier Caliper
On 12/8/24 10:42 AM, WAM via groups.io wrote: Interesting vid I did years ago showing the effect of a CFL light bulb
(the curly fluorescent ones before LED replacements) and the EMI
interference it causes on a plastic caliper
LED lamps can be just as bad.? The SMPS supplies can put out quite an
amount if EMI:
Again - from years ago:
that's a TEK 1.8GHz analog spectrum analyzer
If you take something like an RF Explorer or one of those cheap
CN-made spectrum analyzers into a place like LOWE's or Home Depot's
out motion activated light aisle, watch the RF jump from about 1- 200
MHz...?? nasty.
On 12/8/2024 1:16 PM, Charles Kinzer via groups.io wrote:
? I am more likely to suspect the calipers than interference.?
Especially if they are the extremely inexpensive ones.
But it would be easy enough to drive the calipers a distance away
from any electrical transmission source and see if they magically
start working.
I have some of the low-cost digital calipers and mine have a tendency
to skip sometimes and suddenly be 0.2 or 0.4 inches off or something)
and also
I finally bought two Mitutoyo digital calipers, 4 inch and 6 inches.?
NO problems - ever.? Yes, they cost a bit.? In the long run, I think
a better value.? I also have some dial calipers I sometimes use.
And just to be pedantic, if it is a digital caliper, then it is not a
vernier.? Those are two types of calipers.? One has a digital scale.?
The other a vernier (where you line up physical marks to read
accurately).? Although many people still include the word "vernier"
even if it doesn't fit - even listings for sale.? You have vernier,
dial, and digital.
Charles E. "Chuck" Kinzer
???? On Sunday, December 8, 2024 at 09:57:25 AM PST, Johannes
<johannes@...> wrote:
? ?? #yiv3669264674 P {margin-top:0;margin-bottom:0;}I can not work
without many "Digital Electronic Vernier Caliper" in my
workshop.However, they are always hiding them self when I am doing my
job.Lately I have discovered that they are missing the numbers on the
display.Both old and new ones.Suddenly the numbers are being negative
or shutting down.I am blaming a Comunicacion tower not far?from the
building.
Someone's that has a good advice for me?
Best fromJohannes
|
Re: Digital Electronic Vernier Caliper
thanks . I have maybe 9-10 of those desk/bench lamps that ya can move
just about anywhere . The older ones don't like the A19 Leds cause their
so heavy , they won't stay where I put them. I bought a box oof I think
13/100 watt bulbs . I'm gonna see ifin I can't upgrade teh springs some
to give them better manners .
thanks
animal
toggle quoted message
Show quoted text
On 12/8/24 4:55 PM, WAM via groups.io wrote: It seems that - as you'd expect - the off-brand ones put out the most
noise.
I haven't revisited this? in a while.? I'll have to grab some newer
LED incandescent? replacements and see if they've gotten better.? I do
a lot of High Power LED PCB's for a local client and since they're for
mil and marine we test them to various standards - MIL-STD-461, Part
15.109 and some Part 18...
My lab:
I just do pre qual... they have to take the stuff to a real EMI lab or
something like PAX ASIL -
Spent lots of time there...
On 12/8/2024 6:46 PM, mike allen via groups.io wrote:
??? DO ya recall which light put out the most noise ?
thanks
??? animal
On 12/8/24 10:42 AM, WAM via groups.io wrote:
Interesting vid I did years ago showing the effect of a CFL light bulb
(the curly fluorescent ones before LED replacements) and the EMI
interference it causes on a plastic caliper
LED lamps can be just as bad.? The SMPS supplies can put out quite an
amount if EMI:
Again - from years ago:
that's a TEK 1.8GHz analog spectrum analyzer
If you take something like an RF Explorer or one of those cheap
CN-made spectrum analyzers into a place like LOWE's or Home Depot's
out motion activated light aisle, watch the RF jump from about 1- 200
MHz...?? nasty.
On 12/8/2024 1:16 PM, Charles Kinzer via groups.io wrote:
? I am more likely to suspect the calipers than interference.
Especially if they are the extremely inexpensive ones.
But it would be easy enough to drive the calipers a distance away
from any electrical transmission source and see if they magically
start working.
I have some of the low-cost digital calipers and mine have a tendency
to skip sometimes and suddenly be 0.2 or 0.4 inches off or something)
and also
I finally bought two Mitutoyo digital calipers, 4 inch and 6 inches.
NO problems - ever.? Yes, they cost a bit.? In the long run, I think
a better value.? I also have some dial calipers I sometimes use.
And just to be pedantic, if it is a digital caliper, then it is not a
vernier.? Those are two types of calipers.? One has a digital scale.
The other a vernier (where you line up physical marks to read
accurately).? Although many people still include the word "vernier"
even if it doesn't fit - even listings for sale.? You have vernier,
dial, and digital.
Charles E. "Chuck" Kinzer
???? On Sunday, December 8, 2024 at 09:57:25 AM PST, Johannes
<johannes@...> wrote:
? ?? #yiv3669264674 P {margin-top:0;margin-bottom:0;}I can not work
without many "Digital Electronic Vernier Caliper" in my
workshop.However, they are always hiding them self when I am doing my
job.Lately I have discovered that they are missing the numbers on the
display.Both old and new ones.Suddenly the numbers are being negative
or shutting down.I am blaming a Comunicacion tower not far?from the
building.
Someone's that has a good advice for me?
Best fromJohannes
|
Re: Digital Electronic Vernier Caliper
It seems that - as you'd expect - the off-brand ones put out the most noise.
I haven't revisited this? in a while.? I'll have to grab some newer LED incandescent? replacements and see if they've gotten better.? I do a lot of High Power LED PCB's for a local client and since they're for mil and marine we test them to various standards - MIL-STD-461, Part 15.109 and some Part 18...
My lab:
I just do pre qual... they have to take the stuff to a real EMI lab or something like PAX ASIL -
Spent lots of time there...
toggle quoted message
Show quoted text
On 12/8/2024 6:46 PM, mike allen via groups.io wrote: ??? DO ya recall which light put out the most noise ?
thanks
??? animal
On 12/8/24 10:42 AM, WAM via groups.io wrote:
Interesting vid I did years ago showing the effect of a CFL light bulb
(the curly fluorescent ones before LED replacements) and the EMI
interference it causes on a plastic caliper
LED lamps can be just as bad.? The SMPS supplies can put out quite an
amount if EMI:
Again - from years ago:
that's a TEK 1.8GHz analog spectrum analyzer
If you take something like an RF Explorer or one of those cheap
CN-made spectrum analyzers into a place like LOWE's or Home Depot's
out motion activated light aisle, watch the RF jump from about 1- 200
MHz...?? nasty.
On 12/8/2024 1:16 PM, Charles Kinzer via groups.io wrote:
? I am more likely to suspect the calipers than interference.
Especially if they are the extremely inexpensive ones.
But it would be easy enough to drive the calipers a distance away
from any electrical transmission source and see if they magically
start working.
I have some of the low-cost digital calipers and mine have a tendency
to skip sometimes and suddenly be 0.2 or 0.4 inches off or something)
and also
I finally bought two Mitutoyo digital calipers, 4 inch and 6 inches.
NO problems - ever.? Yes, they cost a bit.? In the long run, I think
a better value.? I also have some dial calipers I sometimes use.
And just to be pedantic, if it is a digital caliper, then it is not a
vernier.? Those are two types of calipers.? One has a digital scale.
The other a vernier (where you line up physical marks to read
accurately).? Although many people still include the word "vernier"
even if it doesn't fit - even listings for sale.? You have vernier,
dial, and digital.
Charles E. "Chuck" Kinzer
???? On Sunday, December 8, 2024 at 09:57:25 AM PST, Johannes
<johannes@...> wrote:
? ?? #yiv3669264674 P {margin-top:0;margin-bottom:0;}I can not work
without many "Digital Electronic Vernier Caliper" in my
workshop.However, they are always hiding them self when I am doing my
job.Lately I have discovered that they are missing the numbers on the
display.Both old and new ones.Suddenly the numbers are being negative
or shutting down.I am blaming a Comunicacion tower not far?from the
building.
Someone's that has a good advice for me?
Best fromJohannes
|
Re: Digital Electronic Vernier Caliper
DO ya recall which light put out the most noise ?
thanks
??? animal
toggle quoted message
Show quoted text
On 12/8/24 10:42 AM, WAM via groups.io wrote: Interesting vid I did years ago showing the effect of a CFL light bulb
(the curly fluorescent ones before LED replacements) and the EMI
interference it causes on a plastic caliper
LED lamps can be just as bad.? The SMPS supplies can put out quite an
amount if EMI:
Again - from years ago:
that's a TEK 1.8GHz analog spectrum analyzer
If you take something like an RF Explorer or one of those cheap
CN-made spectrum analyzers into a place like LOWE's or Home Depot's
out motion activated light aisle, watch the RF jump from about 1- 200
MHz...?? nasty.
On 12/8/2024 1:16 PM, Charles Kinzer via groups.io wrote:
? I am more likely to suspect the calipers than interference.?
Especially if they are the extremely inexpensive ones.
But it would be easy enough to drive the calipers a distance away
from any electrical transmission source and see if they magically
start working.
I have some of the low-cost digital calipers and mine have a tendency
to skip sometimes and suddenly be 0.2 or 0.4 inches off or something)
and also
I finally bought two Mitutoyo digital calipers, 4 inch and 6 inches.?
NO problems - ever.? Yes, they cost a bit.? In the long run, I think
a better value.? I also have some dial calipers I sometimes use.
And just to be pedantic, if it is a digital caliper, then it is not a
vernier.? Those are two types of calipers.? One has a digital scale.?
The other a vernier (where you line up physical marks to read
accurately).? Although many people still include the word "vernier"
even if it doesn't fit - even listings for sale.? You have vernier,
dial, and digital.
Charles E. "Chuck" Kinzer
???? On Sunday, December 8, 2024 at 09:57:25 AM PST, Johannes
<johannes@...> wrote:
? ?? #yiv3669264674 P {margin-top:0;margin-bottom:0;}I can not work
without many "Digital Electronic Vernier Caliper" in my
workshop.However, they are always hiding them self when I am doing my
job.Lately I have discovered that they are missing the numbers on the
display.Both old and new ones.Suddenly the numbers are being negative
or shutting down.I am blaming a Comunicacion tower not far?from the
building.
Someone's that has a good advice for me?
Best fromJohannes
|
Re: Digital Electronic Vernier Caliper
??? CFL's are great for makin noise , but so are some of the
import LED's too . I've seen a couple folks that have gotten? a
single AA? or maybe it was a AAA battery holder & solder the
leads to the battery contacts on the caliper ( digital ) &
then double stick tape or some other method of mounting the
battery holder to the caliper . Makes it real easy to remove the
battery . a lot of the cheapo's don't turn off when the power
switch is used , they just go to sleep . I bought my batteries for
these calipers at the Dollar tree for years & years 4 for a
buck . I think their up to the 5 buck mark? for 4 these days .
animal
On 12/8/24 10:58 AM, Johannes wrote:
toggle quoted message
Show quoted text
Hi WAM
Maybe !!!!"
I just changed my roof lamp from a low Watt CFL to "150 W" LED.
I will test to morrow.
Maybe I still can get an old Edison lamp? It will also keep my
workshop warm also? ?
/johannes
"Chuck"
Thanks, you are absolutely correct.
I have all 3: vernier, dial, and digital.
Thanks for "pinching" my ear.
/Johannes?
replace
the battery
In a message dated 12/8/2024 10:17:08 AM Pacific Standard
Time, ckinzer@... writes:
?
?
I am more likely to suspect the
calipers than interference.? Especially if they
are the extremely inexpensive ones.
?
But it would be easy enough to
drive the calipers a distance away from any
electrical transmission source and see if they
magically start working.
?
I have some of the low-cost digital
calipers and mine have a tendency to skip
sometimes and suddenly be 0.2 or 0.4 inches off
or something) and also?
?
I finally bought two Mitutoyo
digital calipers, 4 inch and 6 inches.? NO
problems - ever.? Yes, they cost a bit.? In the
long run, I think a better value.? I also have
some dial calipers I sometimes use.
?
And just to be pedantic, if it is a
digital caliper, then it is not a vernier.?
Those are two types of calipers.? One has a
digital scale.? The other a vernier (where you
line up physical marks to read accurately).?
Although many people still include the word
"vernier" even if it doesn't fit - even listings
for sale.? You have vernier, dial, and digital.
?
Charles E. "Chuck" Kinzer
?
On Sunday, December 8, 2024 at 09:57:25 AM
PST, Johannes <johannes@...>
wrote: ?
?
I can not
work without many "Digital Electronic Vernier
Caliper" in my
workshop.
However,
they are always hiding them self when
I am doing my job.
Lately I
have discovered that they are missing
the numbers on the display.
Both old
and new ones.
Suddenly
the numbers are being negative or
shutting down.
I am
blaming a Comunicacion tower not
far?from the building.
?
Someone's that has a good advice for me?
?
Best from
Johannes
?
|
Re: Digital Electronic Vernier Caliper
I've found that the DROs on my mill become sensitive to electromagnetic interference when their batteries start to go flat.? So yeah, try replacing the batteries in? your affected digital calipers.
|
Re: Digital Electronic Vernier Caliper
We were doing FCC testing on one of our Large computers @ 1984-85 .
One machine sailed right through & the 2nd after lunch started having
problems , we put foil everywhere we could aloft with steel braid? with
the rubber on the inside . Finally my boss asks me if the lights were on
during the morning test & I said I was pretty sure they were not on . He
goes over to the panel & hits every breaker that said lites & boom
things got much better . He told the guy " I'm not paying you $ 125.00 a
hr to find out you have bad ballast's . Those were the old 8' tubes with
the 2 small pins on each side? HO's they were called back then .
animal
toggle quoted message
Show quoted text
On 12/8/24 10:42 AM, WAM via groups.io wrote: Interesting vid I did years ago showing the effect of a CFL light bulb
(the curly fluorescent ones before LED replacements) and the EMI
interference it causes on a plastic caliper
LED lamps can be just as bad.? The SMPS supplies can put out quite an
amount if EMI:
Again - from years ago:
that's a TEK 1.8GHz analog spectrum analyzer
If you take something like an RF Explorer or one of those cheap
CN-made spectrum analyzers into a place like LOWE's or Home Depot's
out motion activated light aisle, watch the RF jump from about 1- 200
MHz...?? nasty.
On 12/8/2024 1:16 PM, Charles Kinzer via groups.io wrote:
? I am more likely to suspect the calipers than interference.?
Especially if they are the extremely inexpensive ones.
But it would be easy enough to drive the calipers a distance away
from any electrical transmission source and see if they magically
start working.
I have some of the low-cost digital calipers and mine have a tendency
to skip sometimes and suddenly be 0.2 or 0.4 inches off or something)
and also
I finally bought two Mitutoyo digital calipers, 4 inch and 6 inches.?
NO problems - ever.? Yes, they cost a bit.? In the long run, I think
a better value.? I also have some dial calipers I sometimes use.
And just to be pedantic, if it is a digital caliper, then it is not a
vernier.? Those are two types of calipers.? One has a digital scale.?
The other a vernier (where you line up physical marks to read
accurately).? Although many people still include the word "vernier"
even if it doesn't fit - even listings for sale.? You have vernier,
dial, and digital.
Charles E. "Chuck" Kinzer
???? On Sunday, December 8, 2024 at 09:57:25 AM PST, Johannes
<johannes@...> wrote:
? ?? #yiv3669264674 P {margin-top:0;margin-bottom:0;}I can not work
without many "Digital Electronic Vernier Caliper" in my
workshop.However, they are always hiding them self when I am doing my
job.Lately I have discovered that they are missing the numbers on the
display.Both old and new ones.Suddenly the numbers are being negative
or shutting down.I am blaming a Comunicacion tower not far?from the
building.
Someone's that has a good advice for me?
Best fromJohannes
|
Re: Digital Electronic Vernier Caliper
Hi WAM
Maybe !!!!"
I just changed my roof lamp from a low Watt CFL to "150 W" LED.
I will test to morrow.
Maybe I still can get an old Edison lamp? It will also keep my workshop warm also? ?
/johannes
toggle quoted message
Show quoted text
"Chuck"
Thanks, you are absolutely correct.
I have all 3: vernier, dial, and digital.
Thanks for "pinching" my ear.
/Johannes?
replace the battery
In a message dated 12/8/2024 10:17:08 AM Pacific Standard Time, ckinzer@... writes:
?
?
I am more likely to suspect the calipers than interference.? Especially if they are the extremely inexpensive ones.
?
But it would be easy enough to drive the calipers a distance away from any electrical transmission source and see if they magically start working.
?
I have some of the low-cost digital calipers and mine have a tendency to skip sometimes and suddenly be 0.2 or 0.4 inches off or something) and also?
?
I finally bought two Mitutoyo digital calipers, 4 inch and 6 inches.? NO problems - ever.? Yes, they cost a bit.? In the long run, I think a better value.? I also have some dial calipers I sometimes use.
?
And just to be pedantic, if it is a digital caliper, then it is not a vernier.? Those are two types of calipers.? One has a digital scale.? The other a vernier (where you line up physical marks to read accurately).? Although many people still
include the word "vernier" even if it doesn't fit - even listings for sale.? You have vernier, dial, and digital.
?
Charles E. "Chuck" Kinzer
?
On Sunday, December 8, 2024 at 09:57:25 AM PST, Johannes <johannes@...> wrote:
?
?
I can not work without many "Digital Electronic Vernier Caliper" in my workshop.
However, they are always hiding them self when I am doing my job.
Lately I have discovered that they are missing the numbers on the display.
Both old and new ones.
Suddenly the numbers are being negative or shutting down.
I am blaming a Comunicacion tower not far?from the building.
?
Someone's that has a good advice for me?
?
Best from
Johannes
?
|
Re: Digital Electronic Vernier Caliper
"Chuck"
Thanks, you are absolutely correct.
I have all 3: vernier, dial, and digital.
Thanks for "pinching" my ear.
/Johannes?
toggle quoted message
Show quoted text
replace the battery
In a message dated 12/8/2024 10:17:08 AM Pacific Standard Time, ckinzer@... writes:
?
?
I am more likely to suspect the calipers than interference.? Especially if they are the extremely inexpensive ones.
?
But it would be easy enough to drive the calipers a distance away from any electrical transmission source and see if they magically start working.
?
I have some of the low-cost digital calipers and mine have a tendency to skip sometimes and suddenly be 0.2 or 0.4 inches off or something) and also?
?
I finally bought two Mitutoyo digital calipers, 4 inch and 6 inches.? NO problems - ever.? Yes, they cost a bit.? In the long run, I think a better value.? I also have some dial calipers I sometimes use.
?
And just to be pedantic, if it is a digital caliper, then it is not a vernier.? Those are two types of calipers.? One has a digital scale.? The other a vernier (where you line up physical marks to read accurately).? Although many people still
include the word "vernier" even if it doesn't fit - even listings for sale.? You have vernier, dial, and digital.
?
Charles E. "Chuck" Kinzer
?
On Sunday, December 8, 2024 at 09:57:25 AM PST, Johannes <johannes@...> wrote:
?
?
I can not work without many "Digital Electronic Vernier Caliper" in my workshop.
However, they are always hiding them self when I am doing my job.
Lately I have discovered that they are missing the numbers on the display.
Both old and new ones.
Suddenly the numbers are being negative or shutting down.
I am blaming a Comunicacion tower not far?from the building.
?
Someone's that has a good advice for me?
?
Best from
Johannes
?
|
Re: Digital Electronic Vernier Caliper
Interesting vid I did years ago showing the effect of a CFL light bulb (the curly fluorescent ones before LED replacements) and the EMI interference it causes on a plastic caliper
LED lamps can be just as bad.? The SMPS supplies can put out quite an amount if EMI:
Again - from years ago:
that's a TEK 1.8GHz analog spectrum analyzer
If you take something like an RF Explorer or one of those cheap CN-made spectrum analyzers into a place like LOWE's or Home Depot's out motion activated light aisle, watch the RF jump from about 1- 200 MHz...?? nasty.
toggle quoted message
Show quoted text
On 12/8/2024 1:16 PM, Charles Kinzer via groups.io wrote: I am more likely to suspect the calipers than interference.? Especially if they are the extremely inexpensive ones.
But it would be easy enough to drive the calipers a distance away from any electrical transmission source and see if they magically start working.
I have some of the low-cost digital calipers and mine have a tendency to skip sometimes and suddenly be 0.2 or 0.4 inches off or something) and also
I finally bought two Mitutoyo digital calipers, 4 inch and 6 inches.? NO problems - ever.? Yes, they cost a bit.? In the long run, I think a better value.? I also have some dial calipers I sometimes use.
And just to be pedantic, if it is a digital caliper, then it is not a vernier.? Those are two types of calipers.? One has a digital scale.? The other a vernier (where you line up physical marks to read accurately).? Although many people still include the word "vernier" even if it doesn't fit - even listings for sale.? You have vernier, dial, and digital.
Charles E. "Chuck" Kinzer
On Sunday, December 8, 2024 at 09:57:25 AM PST, Johannes <johannes@...> wrote:
#yiv3669264674 P {margin-top:0;margin-bottom:0;}I can not work without many "Digital Electronic Vernier Caliper" in my workshop.However, they are always hiding them self when I am doing my job.Lately I have discovered that they are missing the numbers on the display.Both old and new ones.Suddenly the numbers are being negative or shutting down.I am blaming a Comunicacion tower not far?from the building.
Someone's that has a good advice for me?
Best fromJohannes
|
Re: Digital Electronic Vernier Caliper
replace the battery
In a message dated 12/8/2024 10:17:08 AM Pacific Standard Time, ckinzer@... writes:
?
?
I am more likely to suspect the calipers than interference.? Especially if they are the extremely inexpensive ones.
?
But it would be easy enough to drive the calipers a distance away from any electrical transmission source and see if they magically start working.
?
I have some of the low-cost digital calipers and mine have a tendency to skip sometimes and suddenly be 0.2 or 0.4 inches off or something) and also?
?
I finally bought two Mitutoyo digital calipers, 4 inch and 6 inches.? NO problems - ever.? Yes, they cost a bit.? In the long run, I think a better value.? I also have some dial calipers I sometimes use.
?
And just to be pedantic, if it is a digital caliper, then it is not a vernier.? Those are two types of calipers.? One has a digital scale.? The other a vernier (where you line up physical marks to read accurately).? Although many people still include the word "vernier" even if it doesn't fit - even listings for sale.? You have vernier, dial, and digital.
?
Charles E. "Chuck" Kinzer
?
On Sunday, December 8, 2024 at 09:57:25 AM PST, Johannes <johannes@...> wrote:
?
?
I can not work without many "Digital Electronic Vernier Caliper" in my workshop.
However, they are always hiding them self when I am doing my job.
Lately I have discovered that they are missing the numbers on the display.
Both old and new ones.
Suddenly the numbers are being negative or shutting down.
I am blaming a Comunicacion tower not far?from the building.
?
Someone's that has a good advice for me?
?
Best from
Johannes
?
|
Re: Digital Electronic Vernier Caliper
I am more likely to suspect the calipers than interference.? Especially if they are the extremely inexpensive ones.
But it would be easy enough to drive the calipers a distance away from any electrical transmission source and see if they magically start working.
I have some of the low-cost digital calipers and mine have a tendency to skip sometimes and suddenly be 0.2 or 0.4 inches off or something) and also?
I finally bought two Mitutoyo digital calipers, 4 inch and 6 inches.? NO problems - ever.? Yes, they cost a bit.? In the long run, I think a better value.? I also have some dial calipers I sometimes use.
And just to be pedantic, if it is a digital caliper, then it is not a vernier.? Those are two types of calipers.? One has a digital scale.? The other a vernier (where you line up physical marks to read accurately).? Although many people still include the word "vernier" even if it doesn't fit - even listings for sale.? You have vernier, dial, and digital.
Charles E. "Chuck" Kinzer
On Sunday, December 8, 2024 at 09:57:25 AM PST, Johannes <johannes@...> wrote:
I can not work without many "Digital Electronic Vernier Caliper" in my workshop.
However, they are always hiding them self when I am doing my job.
Lately I have discovered that they are missing the numbers on the display.
Both old and new ones.
Suddenly the numbers are being negative or shutting down.
I am blaming a Comunicacion tower not far?from the building.
Someone's that has a good advice for me?
Best from
Johannes
|
BuffaloJohn
Johannes