Specification of current reading on multimeter

P

Phil Allison

Jan 1, 1970
0
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
 
P

Phil Allison

Jan 1, 1970
0
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
 
I

IanM

Jan 1, 1970
0
Hattori said:
I was not referring to the shunt, you retarded twit.
-lol-

Thanks for revealing another nym. <PLONK>

If you have some more nyms handy you *could* try to explain how a higher
resistance meter movement or DVM module with the same FSD could read a
particular current at FSD with a lower resistance shunt, but then you'd
have to understand basic electrical theory. I'm not holding my breath.
 
W

William Sommerwerck

Jan 1, 1970
0
Oh the irony...

I hear pots and kettles banging loudly...
 
A

Archimedes' Lever

Jan 1, 1970
0
No has to read your mind, when all you do is speak your mind.
Want to try to actually construct a legible, literate sentence,
Jamietard? That one didn't end up on the paper right.
Bwuahahaha!
 
P

Phil Allison

Jan 1, 1970
0
"Lostgallifreyan"


** This RETARDED FUCKHEAD needs kicking off usenet too.
Yep, I'm plonking Phil too, the other guy's been plonked for months. I'm
tired of this, I don't care if someone knows useful facts if they can't
focus
on applying them. As far as I'm concerned, this thread could have been
done
days ago by someone dealing with what the OP wanted to DO, not how he
assumed
it was to be done. I remember a tiny circuit with two ceramic caps and a
100K
resistor that would tap a phone line with negligible loading,


** ROTFLMAO !!!

Read the damn heading - you are in the WRONG THREAD

FUCKWIT TROLL !!!!




...... Phil
 
D

Don Kelly

Jan 1, 1970
0
Phil said:
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
plonk
 
I

ian field

Jan 1, 1970
0
nicola said:
I am in the UK. I have a £20 digital multimeter and would like
some advice. The meter is a Maplin model PG10B (order code GW18U)

http://www.maplin.co.uk/Module.aspx?ModuleNo=4402

(Q1) Under "DC CURRENT" my user guide says, "voltage drop: 200
mV". Is this the disturbance in a circuit when measuring DC
current?

(Q2) If so, then does that 200 mV figure mean that the potential
difference for the rest of the circuit will be reduced by 200 mV
once I have interrupted the circuit and inserted my meter for DC
Current measurement?

(Q3) Isn't that figure of 200 mV rather high? I mean, if I use
the 2 mA or 20 mA scale in an electronics circuit powered by a 1.5
volt cell then a 200 mV drop in the circuit is very significant.

One way round this is to use a stable adjustable PSU and adjust for the
required voltage *after* the current meter. If your circuit draws large
pulses, pad the supply rails with a hefty electrolytic.
 
I

ian field

Jan 1, 1970
0
Capt. Cave Man said:
What's wrong, PhilTard? Don't like it when someone sides with someone
your retarded ass disagrees with?

TOO BAD.

Anything to say that has any modicum of intelligence?

Philthy is between the point where he stopped taking his tablets and the
point where they hold him down and give him an injection.
 
I

ian field

Jan 1, 1970
0
nicola said:
I am in the UK. I have a £20 digital multimeter

Ask in store to be put on the mailing list and wait for a special offer
better spec meter to be discounted.

Better yet look elsewhere for a better quality instrument and grin & bear
the price, the last meter I bought from Maplin a couple of years ago worked
ok for a while then some of the segments in the display failed, this turned
out to be migrating flux on the LCD contact pads so I was able to fix it
reasonably easily, but this seems to be a bit of a trend with stuff I've
bought from Maplin.
 

neon

Oct 21, 2006
1,325
Joined
Oct 21, 2006
Messages
1,325
understand this analog meters needs current of maybe 50-100uamps for full scale deflection. since 1 amp will destroy the meter at the 1 amp scale they add a shunt resistor so 99.99 % flow thru the shunt for full scale deflection. now this resistor is in series with the current source therefore reducing the voltage by what? 200 mv. this is your spec.
 
I

ian field

Jan 1, 1970
0
Michael A. Terrell said:
Or manual insertion of large quantities of molded lead pellets.

Lead poisoning causes brain damage - he's already got that!
 
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