Ohms meter

thovda

thovda

Been Around the Block
Do you guys know if I can use this meter to check if my coil has resistance. I can't pick up any ohms on any of the setting using it, so I'm wondering if my coil is shot or if I need to buy a tester? My brother had this one. I don't pick anything up on the connecting wires or the spark plug caps? Thanks!
 

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There is a resistance setting, labeled "OHM X1K" in yellow one click to the left of OFF.

The meter will display the resistance in kilo-ohms (thousands of ohms)
 
Not enough precision on that meter. Coils usually measure between three and five ohm. Your meter starts out at a 1K resolution and you're going to need a lot more precision than that. Take a look at a digital model. They can be had for under $20 at many hardware stores.
 
However, measuring a coil's resistance will nominally be 3-4 ohms, which may be too small of a resistance for that meter to measure and look more like a short (0 ohms).

A new digital multimeter can be had for pretty cheap from your local Walmart or Harbor Freight, and will serve much better!


(edit): Exactly, what Sonreir said above
 
Not to be argumentative, but 3 Ohms on that scale is about 1/3 of the way over from zero ohms, so that meter should do it.

The Ohmmeter requires an internal battery. It might be dead. As a general rule, an analog Ohmmeter has a zero adjustment wheel. You short the two leads together, and then adjust to zero.
 
Looks like ADC is right, the green on top is the OHM reading, goes from 1-1000 easily readable.
 
AlphaDogChoppers said:
Not to be argumentative, but 3 Ohms on that scale is about 1/3 of the way over from zero ohms, so that meter should do it.

The Ohmmeter requires an internal battery. It might be dead. As a general rule, an analog Ohmmeter has a zero adjustment wheel. You short the two leads together, and then adjust to zero.
Click to expand...

Yeah... I think you're right. I was looking at it left to right and I think it scaled the opposite direction.
 
Thanks for the help. I lost spark on the KZ400 and I was hoping to get a coil ordered ASAP to get it rolling, if that's the parts that bad, and not have to wait for a meter too. I just tried the x1k setting on the wires alone again, and switched the positive/negative ends and I get a reading that's off the meter. So I must be getting some resistance there, if that's what it means? I can't pull any reading off the plugs though.
 
thovda said:
Thanks for the help. I lost spark on the KZ400 and I was hoping to get a coil ordered ASAP to get it rolling, if that's the parts that bad, and not have to wait for a meter too. I just tried the x1k setting on the wires alone again, and switched the positive/negative ends and I get a reading that's off the meter. So I must be getting some resistance there, if that's what it means? I can't pull any reading off the plugs though.
Click to expand...

Switching the positive/negative ends shouldn't make any difference when measuring resistance, when you say the reading is off the meter, do you mean it's off on the high side or the low side?
 
It's reading off the low side, it's reading below the 0? The battery is good, brand new AA an hour ago. ADC said to zero it, and it's not zeroing when I touch the electrodes together?
Any idea on what setting it should be on to check the plugs?
 
SONICJK said:
Looks like ADC is right, the green on top is the OHM reading, goes from 1-1000 easily readable.
Click to expand...

1 to 1000, yes, but the multiplier is 1000.

So 1 = 1000
1000= 1,000,000 ohms.

Since a lot of resistors are K ohms, that's a useful range.

If the range was 1-1000 ohms, even a 2k ohm resistor would be out of range.

So 5 ohms would be at the bottom of the scale, as Sonreir Said.

Battery is probably dead. If not, it needs to be zero'd
 
Exactly myd, although the scale reads 0-1000, you must still multiply by 1000 to get the actual resistance.

See this pdf manual for the meter, particularly Section 7: http://www.testequipmentdepot.com/sperry-instruments/pdf/hsp5.pdf
 
mydlyfkryzis said:
1 to 1000, yes, but the multiplier is 1000.

So 1 = 1000
1000= 1,000,000 ohms.
Click to expand...

Shit! You are right. The "3" on the scale would be 3,000. [slapping forehead now]
 
Thanks for link Jehymel. So to make sure it was working it said for testing a household battery put the meter on the 10 DC setting, and the AA battery comes back at 110 on the DC scale, so tester must be working...you guys are tallking a bit over my head so I'm still wondering if I can use it for testing the coil.
So when testing the wires it comes back at below the zero reading, and i can't get any reading off of the plug wires...is the coil shot?? Do i need a better tester?
 
It does not have the right range for testing the coil...You could not tell 5 ohms from 2 ohm with that meter, even when it is working perfectly.

Get a better meter......200 ohm scale or less....

The HF one would work...and being digital, you won;t have to figure out where the needle is ...
 
Got it, it's reading in 1000s, went back and read what was discussed. Thanks for the help.
 
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