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Open Roads Forum  >  Tech Issues

 > Im having problems reading my multimeter

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weasel4

Alberta

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Posted: 04/11/12 12:27am Link  |  Print  |  Notify Moderator

"The range of my thermistor is 8,000 - 10,000 ohms"

Then use the 20000 range, and it should give you the true readings of your thermistor if it is working within it's upper and lower range.
BTC

judelaurenzo25g

Downey, CA

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Posted: 04/11/12 12:38am Link  |  Print  |  Notify Moderator

weasel4 wrote:

"The range of my thermistor is 8,000 - 10,000 ohms"

Then use the 20000 range, and it should give you the true readings of your thermistor if it is working within it's upper and lower range.
BTC


Thanks!!! This is exactly what I needed to know. Thank for your patience!

SCVJeff, obviously I didn't understand and if you felt like I was wasting your time Im sorry.


A ship in harbour is safe, but that is not what ships are built for.


byronlj

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Posted: 04/11/12 12:40am Link  |  Print  |  Notify Moderator

Does this post reflect the accuracy of other information given on this forum? Only 2 in 5 know the correct answer which is a whopping 40%. Maybe some people should only give answers when they are sure they are correct.
Dave


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SCVJeff

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Posted: 04/11/12 12:45am Link  |  Print  |  Notify Moderator

judelaurenzo25g wrote:

weasel4 wrote:

"The range of my thermistor is 8,000 - 10,000 ohms"

Then use the 20000 range, and it should give you the true readings of your thermistor if it is working within it's upper and lower range.
BTC


Thanks!!! This is exactly what I needed to know. Thank for your patience!

SCVJeff, obviously I didn't understand and if you felt like I was wasting your time Im sorry.
I saw the head scratch on both posts.. The question was what were you really looking at. That I can answer, but not having the spec sheet on the thermistor means you (or me) have no benchmark. Looks like you do now.


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elvisdonnelly

Lloyd, Florida

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Posted: 04/11/12 02:35am Link  |  Print  |  Notify Moderator

Thanks for the tips guys. It's been helpful.

tvman44

Southwest Louisiana

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Posted: 04/11/12 06:57am Link  |  Print  |  Notify Moderator

549 ohms.


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Salvo

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Posted: 04/11/12 08:44am Link  |  Print  |  Notify Moderator

When measuring resistance, is the thermistor disconnected? It can make a difference.

judelaurenzo25g

Downey, CA

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Posted: 04/11/12 10:21am Link  |  Print  |  Notify Moderator

Salvo wrote:

When measuring resistance, is the thermistor disconnected? It can make a difference.


Yes the thermistor is disconnected. I followed the instructions that have been posted on this site.

Disconnect, put in a glass of ice water, and test.

judelaurenzo25g

Downey, CA

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Posted: 04/11/12 10:24am Link  |  Print  |  Notify Moderator

weasel4 wrote:

"The range of my thermistor is 8,000 - 10,000 ohms"

Then use the 20000 range, and it should give you the true readings of your thermistor if it is working within it's upper and lower range.
BTC


I tested it this morning using 2K range and it gave me the same reading 000.59 It seemed to just simply move the decimal over. So if this is true to my range 8K-10K ohms Its not even registering to 1ohm. Either way... I have come to the conclusion that My thermistor is bad.

MEXICOWANDERER

las peƱas, michoacan, mexico

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Posted: 04/11/12 10:48am Link  |  Print  |  Notify Moderator

Aggghhhh!

The scale definition is the MAXIMUM limit that scale will measure using the greatest resolution available for that scale setting. In other words, 2M will not resolve to 1.6402 megohms. Your reading of 000.59 is equal to 59% of 1 kilohm or 590 ohms.

Gwt online. Order 10 different 1% metal film resistors. Their resistance won't be exact but close enough. Order 1, 1ohm, 10ohm, 100ohm, and maybe a 330ohm, 1K ohm, etc. etc. and then play around with the scale dial and readout on your ohm meter.

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