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DMM Malfunction?

Spyderz20x6

Spyderz20x6

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I just got my new DMM (after my older one broke), and when i try to test the continuity of secrets using the resistance feature, it always reads "1". The reading doesn't change at all, except when i short the leads together. I even tested it on a working lightbulb, no luck... still reads "1"

When the circuit is continous, it is supposed to read "0", and i even tried it on all the resistance settings. Anyone know what is wrong?
 





MarioMaster

MarioMaster

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If your meter only registers a reading when you short the leads but not on other resistances on any resistance range then I'd return it as the fuse is obviously working if it registers when you short the leads
 
Spyderz20x6

Spyderz20x6

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MarioMaster said:
If your meter only registers a reading when you short the leads but not on other resistances on any resistance range then I'd return it as the fuse is obviously working if it registers when you short the leads
Click to expand...
Well, it isn't a problem with all the other settings... so the fuse seems to be working fine...
Like when i set the current, it works without any problems :-/
 
R

Ryo

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Sounds like a bad multimeter.. return it and get another one.

I recommend a good Fluke.. they last and very durable.
 
jayrob

jayrob

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Spyderz20x6 said:
[quote author=MarioMaster link=1217798107/0#2 date=1217800196]If your meter only registers a reading when you short the leads but not on other resistances on any resistance range then I'd return it as the fuse is obviously working if it registers when you short the leads
Click to expand...
Well,  it isn't a problem with all the other settings... so the fuse seems to be working fine...
Like when i set the current, it works without any problems :-/[/quote]

If it is a digital meter, there are most likely different functions or settings with in that test mode...
Jay
 
rog8811

rog8811

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On one of my meters 1, to the left of the screen, means open circuit.... If only a dead short changes the reading then there must be a fault as suggested by others above..... I assume that you have tried a known value resistor to see if it registers?

Regards rog8811
 
Spyderz20x6

Spyderz20x6

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rog8811 said:
On one of my meters 1, to the left of the screen, means open circuit.... If only a dead short changes the reading then there must be a fault as suggested by others above..... I assume that you have tried a known value resistor to see if it registers?

Regards rog8811
Click to expand...
Yes, i have. And it reads the value of the resistor just fine. So i guess "1" means open circuit?
 
L

laserguys

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Did you put the meter on the highest resistance scale?
If you are on the Lowest scale (ie 200 Ohms) and are measuring
say, 10,000 Ohms the meter will read "1" showing an over range
resistance.
If you touch just the leads together you should get close to "0".

OR

The Fuse is blown

OR

The meter is defective


Just a thought. ;)
 
Spyderz20x6

Spyderz20x6

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laserguys said:
Did you put the meter on the highest resistance scale?
If you are on the Lowest scale (ie 200 Ohms) and are measuring
say, 10,000 Ohms the meter will read "1" showing an over range
resistance.
If you touch just the leads together you should get close to "0".

OR

The Fuse is blown

OR

The meter is defective


Just a thought.  ;)
Click to expand...
The fuse and meter are fine! It reads resistance value. But i can't seem to figure out how to measure continuaty...
 
L

laserguys

Guest
When you touch the 2 probes of your together you are testing continuity from the Black plug on your meter to the Red plug on your meter and it should read close to zero plus the small resistance of your meter leads.

If you take a piece of say 18 guage wire about 10 feet long and check the resistance (or continuity), you should read a very low resistance value on your meter.
If the wire is then cut, you will see a high resistance value or a "1" to the left of
your meter lcd showing the resistance is (very high) over range.
 
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