A
Archimedes' Lever
Guest
On Sat, 3 Jan 2009 13:17:49 -0800, "William Sommerwerck"
<grizzledgeezer@comcast.net> wrote:
<grizzledgeezer@comcast.net> wrote:
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N
nicola
Guest
On Sat 03 Jan 20:54, Archimedes' Lever
<OneBigLever@InfiniteSeries.Org> wrote
I will try again to get a reading and see if I did not do it
correctly the first time.
<OneBigLever@InfiniteSeries.Org> wrote
On Sat, 03 Jan 2009 14:47:01 -0500, Fred McKenzie
fmmck@aol.com> wrote:
In article <Xns9B88874EDE55D4F1A28@209.197.15.171>,
nicola <nomail@it.com> wrote:
My real need is to measure current while charging a AAA NiMH
cell.
When I set my multimeter to measure DC Current and insert it
in the circuit, the charger's light fails to come on!
Nikk-
As Bill mentioned, switching to a higher current range may lower
the meter's resistance to the point where the charger's light
comes on.
Usually not True. Handheld meters current circuit usually uses
a single shunt. That is the cheap ones. It won't matter what
range he uses.
The more expensive, better made meters usually use two, and in
that case a different range will place a different value shunt
in the circuit.
I can't help thinking that he hooked it up wrong, because there
is nothing about such a small resistance that should stop the
charger's circuitry from sensing a battery in need of charge in
place.
Even though the charger's light fails to come on, do you read
any current at all on the meter? If not, you may have blown a
fuse that protects the meter's current ranges.
That is more likely. If it even has one. Again, the cheaper
meters do not, and the better ones do .
If the fuse is only in the current circuit, the meter may
function normally for all other functions.
Current metering that incorporates a fuse does so IN series with
the shunt, and it is the shunt, and other meter circuitry,
including the probe leads that the fuse 'protects' from
over-current conditions.
I can still remember a co-student back in '76, placing a meter
on the AC line with it set to current. It fried the Heathkit
totally. It was only $36, but back then that was a lot for a
student. Now, the fuse, which is nearly always incorporated in
all but the cheapest meters, would open, protecting the meter
guts.
Still, either shunt resistor should still be low enough in value
to have no effect on the charger's sense circuitry. I am
leaning toward there being a blown fuse. On the lowest setting,
and ammeter can even pick up "current" from local induction, so
even with the fuse blown, he *may* see some numbers flickering
across the display.
I will try again to get a reading and see if I did not do it
correctly the first time.
N
nicola
Guest
On Sat 03 Jan 14:16, Stuart <Spambin@argonet.co.uk> wrote
I read what others have posted about the meter being based arounf
a voltmeter which reads 200 mV at full scale.
I had inferred that the full scale deflection reading was
dependent on the range chosen.
So, for example, the full scale reading on a 20 mA range would be
20 mA. (On the 2mA range it would be 2 mA.) And I then had the
impression that when reading almost 20 mA on the 20 mA range, I
would get the 200 mV drop mentioned in the specs.
Is that understanding wrong?
nikk
Oh! Now that isn't what I was expecting.In article <Xns9B88874EDE55D4F1A28@209.197.15.171>,
nicola <nomail@it.com> wrote:
(Q1) Under "DC CURRENT" my user guide says, "voltage drop: 200
mV". Is this the disturbance in a circuit when measuring DC
current?
It is the volt drop across the meter at "full scale deflection".
If you measure 2mA on the 2mA range it will cause a 200mV drop.
If you measure 2mA on the 20mA range it will cause 20mV drop.
I read what others have posted about the meter being based arounf
a voltmeter which reads 200 mV at full scale.
I had inferred that the full scale deflection reading was
dependent on the range chosen.
So, for example, the full scale reading on a 20 mA range would be
20 mA. (On the 2mA range it would be 2 mA.) And I then had the
impression that when reading almost 20 mA on the 20 mA range, I
would get the 200 mV drop mentioned in the specs.
Is that understanding wrong?
nikk
N
nobody >
Guest
Archimedes' Lever wrote:
plastic sleeve to bulk it out to C dimensions.
Ever wonder why they are so light?
Most of the supposed "C" rechargeables are nothing but an AA cell in aOn Sat, 3 Jan 2009 13:17:49 -0800, "William Sommerwerck"
grizzledgeezer@comcast.net> wrote:
Nope. The battery type, not form factor determine the charge rate.
You don't know what you're talking about.
Bullcrap. I have both AAA, AA, and C size cells here, and the C size
cells have the same ampere hour rating that the AA batteries do. Guess
what that means to the charger, dingledorf?
plastic sleeve to bulk it out to C dimensions.
Ever wonder why they are so light?
A
Archimedes' Lever
Guest
On Sat, 03 Jan 2009 14:09:00 -0800, "nobody >" <usenetharvested@aol.com>
wrote:
realm.
Now, they are full density cells.
So, NO, they are NOT 'supposed C cells', They are REAL C cells.
wrote:
No, dope. Those are the 'batteries' from the beginning of the nmihArchimedes' Lever wrote:
On Sat, 3 Jan 2009 13:17:49 -0800, "William Sommerwerck"
grizzledgeezer@comcast.net> wrote:
Nope. The battery type, not form factor determine the charge rate.
You don't know what you're talking about.
Bullcrap. I have both AAA, AA, and C size cells here, and the C size
cells have the same ampere hour rating that the AA batteries do. Guess
what that means to the charger, dingledorf?
Most of the supposed "C" rechargeables are nothing but an AA cell in a
plastic sleeve to bulk it out to C dimensions.
realm.
Now, they are full density cells.
Maybe they are trying to match the weight of your brain.Ever wonder why they are so light?
So, NO, they are NOT 'supposed C cells', They are REAL C cells.
W
William Sommerwerck
Guest
I don't think Mr. Lever understands very much about batteries or their
recharging.
There's an old adage -- "An empty vessel makes the biggest noise."
recharging.
There's an old adage -- "An empty vessel makes the biggest noise."
A
Archimedes' Lever
Guest
On Sat, 3 Jan 2009 14:34:45 -0800, "William Sommerjerck"
<grizzledgeezer@comcast.net> wrote:
Sorry, chump but it is you that doesn't understand much.
I notice that you snipped all the post that you are now claiming to
refute. It would be interesting if you actually had enough brains to put
together a proper refutation. Alas, you are not much better than Roy.
Yep... yer a geezer, and no, you are not in touch with reality.
Grizzled? No. More like frazzle brained.
So, Somejerk, you can fuck off.
<grizzledgeezer@comcast.net> wrote:
I don't think Mr. Lever understands very much about batteries or their
recharging.
There's an old adage -- "An empty vessel makes the biggest noise."
Must be why Billy responded. He likes to make noises.
Sorry, chump but it is you that doesn't understand much.
I notice that you snipped all the post that you are now claiming to
refute. It would be interesting if you actually had enough brains to put
together a proper refutation. Alas, you are not much better than Roy.
Yep... yer a geezer, and no, you are not in touch with reality.
Grizzled? No. More like frazzle brained.
So, Somejerk, you can fuck off.
P
Peter Bennett
Guest
On Sat, 03 Jan 2009 21:52:52 GMT, nicola <nomail@it.com> wrote:
No - it is correct.
The meter has a voltage drop of 200 mV at full scale - internally, it
is a 200 mV full scale meter.
If you measure a current of 2 mA on the 2 mA scale, the meter will
have a 200 mV voltage drop.
If you switch to the 20 mA scale, that 2 mA current will result in a
20 mV drop.
If you switch to the 200 mA scale, the 2 mA current will result in a 2
mV drop.
For any scale and current, the meter's voltage drop is:
(current/full_scale) * 200 mV
--
Peter Bennett, VE7CEI
peterbb4 (at) interchange.ubc.ca
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca
On Sat 03 Jan 14:16, Stuart <Spambin@argonet.co.uk> wrote
In article <Xns9B88874EDE55D4F1A28@209.197.15.171>,
nicola <nomail@it.com> wrote:
(Q1) Under "DC CURRENT" my user guide says, "voltage drop: 200
mV". Is this the disturbance in a circuit when measuring DC
current?
It is the volt drop across the meter at "full scale deflection".
If you measure 2mA on the 2mA range it will cause a 200mV drop.
If you measure 2mA on the 20mA range it will cause 20mV drop.
Oh! Now that isn't what I was expecting.
I read what others have posted about the meter being based arounf
a voltmeter which reads 200 mV at full scale.
I had inferred that the full scale deflection reading was
dependent on the range chosen.
So, for example, the full scale reading on a 20 mA range would be
20 mA. (On the 2mA range it would be 2 mA.) And I then had the
impression that when reading almost 20 mA on the 20 mA range, I
would get the 200 mV drop mentioned in the specs.
Is that understanding wrong?
nikk
No - it is correct.
The meter has a voltage drop of 200 mV at full scale - internally, it
is a 200 mV full scale meter.
If you measure a current of 2 mA on the 2 mA scale, the meter will
have a 200 mV voltage drop.
If you switch to the 20 mA scale, that 2 mA current will result in a
20 mV drop.
If you switch to the 200 mA scale, the 2 mA current will result in a 2
mV drop.
For any scale and current, the meter's voltage drop is:
(current/full_scale) * 200 mV
--
Peter Bennett, VE7CEI
peterbb4 (at) interchange.ubc.ca
GPS and NMEA info: http://vancouver-webpages.com/peter
Vancouver Power Squadron: http://vancouver.powersquadron.ca
K
krw
Guest
On Sat, 3 Jan 2009 14:34:45 -0800, "William Sommerwerck"
<grizzledgeezer@comcast.net> wrote:
knowledge of everything. There is a long history behind his nickname,
"Always Wrong".
<grizzledgeezer@comcast.net> wrote:
That's nothing new. DimBulb has a long history of demonstating zeroI don't think Mr. Lever understands very much about batteries or their
recharging.
knowledge of everything. There is a long history behind his nickname,
"Always Wrong".
DimBulb's head is *vacuum* empty.There's an old adage -- "An empty vessel makes the biggest noise."
A
Archimedes' Lever
Guest
On Sat, 03 Jan 2009 15:34:37 -0800, Peter Bennett
<peterbb@somewhere.invalid> wrote:
Jeez dude. You can get a cheap $12 meter that has a much higher
internal resistance at Harbor Freight or your local auto parts store.
Just get a better meter for the task.
<peterbb@somewhere.invalid> wrote:
On Sat, 03 Jan 2009 21:52:52 GMT, nicola <nomail@it.com> wrote:
On Sat 03 Jan 14:16, Stuart <Spambin@argonet.co.uk> wrote
In article <Xns9B88874EDE55D4F1A28@209.197.15.171>,
nicola <nomail@it.com> wrote:
(Q1) Under "DC CURRENT" my user guide says, "voltage drop: 200
mV". Is this the disturbance in a circuit when measuring DC
current?
It is the volt drop across the meter at "full scale deflection".
If you measure 2mA on the 2mA range it will cause a 200mV drop.
If you measure 2mA on the 20mA range it will cause 20mV drop.
Oh! Now that isn't what I was expecting.
I read what others have posted about the meter being based arounf
a voltmeter which reads 200 mV at full scale.
I had inferred that the full scale deflection reading was
dependent on the range chosen.
So, for example, the full scale reading on a 20 mA range would be
20 mA. (On the 2mA range it would be 2 mA.) And I then had the
impression that when reading almost 20 mA on the 20 mA range, I
would get the 200 mV drop mentioned in the specs.
Is that understanding wrong?
nikk
No - it is correct.
The meter has a voltage drop of 200 mV at full scale - internally, it
is a 200 mV full scale meter.
If you measure a current of 2 mA on the 2 mA scale, the meter will
have a 200 mV voltage drop.
If you switch to the 20 mA scale, that 2 mA current will result in a
20 mV drop.
If you switch to the 200 mA scale, the 2 mA current will result in a 2
mV drop.
For any scale and current, the meter's voltage drop is:
(current/full_scale) * 200 mV
Jeez dude. You can get a cheap $12 meter that has a much higher
internal resistance at Harbor Freight or your local auto parts store.
Just get a better meter for the task.
A
Archimedes' Lever
Guest
On Sat, 03 Jan 2009 17:52:10 -0600, krw <krw@att.bizzzzzzzzzzz> wrote:
Said the retarded fuck that spent NO time actually reading the thread,
and zero time refuting anything from a technical POV.
You suffer the same problem as SomeJerck does. Zero capacity to refute
with facts. Good job, KeithKiethTard.
On Sat, 3 Jan 2009 14:34:45 -0800, "William Sommerjerck"
grizzledgeezer@comcast.net> wrote:
I don't think Mr. Lever understands very much about batteries or their
recharging.
That's nothing new. DimBulb has a long history of demonstating zero
knowledge of everything. There is a long history behind his nickname,
"Always Wrong".
There's an old adage -- "An empty vessel makes the biggest noise."
DimBulb's head is *vacuum* empty.
Said the retarded fuck that spent NO time actually reading the thread,
and zero time refuting anything from a technical POV.
You suffer the same problem as SomeJerck does. Zero capacity to refute
with facts. Good job, KeithKiethTard.
W
William Sommerwerck
Guest
Why do you think that insulting me is going to get me upset or do your
reputation any good?
reputation any good?
E
Eeyore
Guest
Archimedes' Lever wrote:
needlessly ?
Playstation broken ?
Have you got NOTHING better in your life to do than aggravate peopleBullcrap. I have both AAA, AA, and C size cells here, and the C size
cells have the same ampere hour rating that the AA batteries do. Guess
what that means to the charger, dingledorf?
needlessly ?
Playstation broken ?
K
krw
Guest
On Sat, 03 Jan 2009 17:02:22 -0800, Archimedes' Lever
<OneBigLever@InfiniteSeries.Org> wrote:
wrong, AlwaysWrong . Others have done a good job here.
<OneBigLever@InfiniteSeries.Org> wrote:
I've read the thread. You haven't fooled anyone here, DimBulb.On Sat, 03 Jan 2009 17:52:10 -0600, krw <krw@att.bizzzzzzzzzzz> wrote:
On Sat, 3 Jan 2009 14:34:45 -0800, "William Sommerjerck"
grizzledgeezer@comcast.net> wrote:
I don't think Mr. Lever understands very much about batteries or their
recharging.
That's nothing new. DimBulb has a long history of demonstating zero
knowledge of everything. There is a long history behind his nickname,
"Always Wrong".
There's an old adage -- "An empty vessel makes the biggest noise."
DimBulb's head is *vacuum* empty.
Said the retarded fuck that spent NO time actually reading the thread,
and zero time refuting anything from a technical POV.
I see no need to refute *everything* you say, even though it's alwaysYou suffer the same problem as SomeJerck does. Zero capacity to refute
with facts. Good job, KeithKiethTard.
wrong, AlwaysWrong . Others have done a good job here.
P
Phil Allison
Guest
Archimedes'= CRIMINAL PSYCHOPATH "
** Report this FUCKING SCUMBAG to his ISP
NOW !!!!!!!!!!!!!!!!
Get the VILE PIG OFF usenet for ever.
The gutless POS anonymous ASSHOLE has a long criminal history.
Do NOT TOLERATE SCUM like this vile puke fucking up a news group.
...... Phil
** Report this FUCKING SCUMBAG to his ISP
NOW !!!!!!!!!!!!!!!!
Get the VILE PIG OFF usenet for ever.
The gutless POS anonymous ASSHOLE has a long criminal history.
Do NOT TOLERATE SCUM like this vile puke fucking up a news group.
...... Phil
A
Archimedes' Lever
Guest
On Mon, 5 Jan 2009 00:18:01 +1100, "Phil Allison"
<philallison@tpg.com.au> wrote:
Presuming that you are referring to me, since you addressed me at the
top of your tripe, what exactly are these crimes you claim I have
committed?
Just remember, cussing at retards in Usenet is not a criminal act,
dipshit.
<philallison@tpg.com.au> wrote:
The gutless POS anonymous ASSHOLE has a long criminal history.
Presuming that you are referring to me, since you addressed me at the
top of your tripe, what exactly are these crimes you claim I have
committed?
Just remember, cussing at retards in Usenet is not a criminal act,
dipshit.
P
Phil Allison
Guest
Archimedes'= CRIMINAL PSYCHOPATH "
** Report this FUCKING SCUMBAG to his ISP
NOW !!!!!!!!!!!!!!!!
Get the VILE PIG OFF usenet for ever.
The gutless POS anonymous ASSHOLE has a long CRIMINAL history.
Do NOT TOLERATE VILE SCUM like this puke
fucking up YOUR news group !!!!
...... Phil
** Report this FUCKING SCUMBAG to his ISP
NOW !!!!!!!!!!!!!!!!
Get the VILE PIG OFF usenet for ever.
The gutless POS anonymous ASSHOLE has a long CRIMINAL history.
Do NOT TOLERATE VILE SCUM like this puke
fucking up YOUR news group !!!!
...... Phil
C
Capt. Cave Man
Guest
On Mon, 5 Jan 2009 00:43:10 +1100, "Phil Allison"
<philallison@tpg.com.au> wrote:
TOO BAD.
Anything to say that has any modicum of intelligence?
<philallison@tpg.com.au> wrote:
your retarded ass disagrees with?Archimedes'= CRIMINAL PSYCHOPATH "
** Report this FUCKING SCUMBAG to his ISP
NOW !!!!!!!!!!!!!!!!
Get the VILE PIG OFF usenet for ever.
The gutless POS anonymous ASSHOLE has a long CRIMINAL history.
Do NOT TOLERATE VILE SCUM like this puke
fucking up YOUR news group !!!!
..... Phil
What's wrong, PhilTard? Don't like it when someone sides with someone
TOO BAD.
Anything to say that has any modicum of intelligence?
P
Phil Allison
Guest
Archimedes'= CRIMINAL PSYCHOPATH "
** Report this FUCKING SCUMBAG to his ISP
NOW !!!!!!!!!!!!!!!!
Get the VILE PIG OFF usenet for ever.
The gutless POS anonymous ASSHOLE has a long CRIMINAL history.
Do NOT TOLERATE VILE SCUM like this puke
fucking up YOUR news group !!!!
...... Phil
** Report this FUCKING SCUMBAG to his ISP
NOW !!!!!!!!!!!!!!!!
Get the VILE PIG OFF usenet for ever.
The gutless POS anonymous ASSHOLE has a long CRIMINAL history.
Do NOT TOLERATE VILE SCUM like this puke
fucking up YOUR news group !!!!
...... Phil
P
Phil Allison
Guest
Archimedes'= CRIMINAL PSYCHOPATH "
** Report this FUCKING SCUMBAG to his ISP
NOW !!!!!!!!!!!!!!!!
Get the VILE PIG OFF usenet for ever.
The gutless POS anonymous ASSHOLE has a long CRIMINAL history.
Do NOT TOLERATE VILE SCUM like this puke
fucking up YOUR news group !!!!
...... Phil
** Report this FUCKING SCUMBAG to his ISP
NOW !!!!!!!!!!!!!!!!
Get the VILE PIG OFF usenet for ever.
The gutless POS anonymous ASSHOLE has a long CRIMINAL history.
Do NOT TOLERATE VILE SCUM like this puke
fucking up YOUR news group !!!!
...... Phil