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DT-9205B+ Multimeter Issue
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Please be positive and constructive with your questions and comments.

DT-9205B+ Multimeter Issue

by pokoj2006 on Thu Nov 02, 2017 7:08 pm

*GREENHORN WARNING*

I received Ladyada's Electronics Toolkit as a birthday present, and finally got vacation time to learn the trade with help from the Make Electronics book.

My 9205B+ Multimeter was working fine yesterday when I began doing some initial measurements as guided by the first chapter of the book. I was able to measure Resistance and DC Amperage & Voltage without issue.

Today, I attempted to use the Audible Continuity Test with a toggle switch, and it didn't work no matter what I tried. The switch had been working fine in my simple circuit.

Now, I find I am unable to measure anything. The display always shows a "1".
Occasionally, digits will jump around as I move the selector dial, but again back to "1" when I select any option. No changes when I attempt to measure.

I have attempted to replace the battery with no change. The fuse looks fine.

What's going on here?

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Re: DT-9205B+ Multimeter Issue

by adafruit_support_mike on Thu Nov 02, 2017 11:45 pm

Could you post a photo showing the meter, the connections you're using, and the unexpected output please? 800x600 images usually work best.

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Re: DT-9205B+ Multimeter Issue

by pokoj2006 on Fri Nov 03, 2017 12:51 am

HERE is a small gallery of images as requested. I can add more tests if needed.

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Re: DT-9205B+ Multimeter Issue

by adafruit_support_mike on Mon Nov 06, 2017 1:29 am

The '1' looks like an out-of-range indicator, and the zeros are reasonable default values.

My guess is that the wire inside one of the meter's probes has broken. When did you get the meter?

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Re: DT-9205B+ Multimeter Issue

by pokoj2006 on Mon Nov 06, 2017 5:40 pm

I received the meter in early June.

I am aware of your 30-day return policy -- and I must say the meter is very reasonably priced -- so I'll just purchase a new one.

Thank you for looking in to this!!!

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Re: DT-9205B+ Multimeter Issue

by adafruit_support_mike on Tue Nov 07, 2017 12:46 am

Tell you what..

The end of the probe that connects to the meter is a banana plug, and we have some banana plug -to- test clip jumpers in the shop:

https://www.adafruit.com/product/2608
https://www.adafruit.com/product/2609

If I'm right that the problem is in the probes, those should work instead. When you order the meter, send a note containing a link to this thread and your order number to support@adafruit.com. I'll ask the folks there to make sure one of each gets into the box. Having two meters is necessary for several kinds of measurement, and clip probes are really handy.

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Re: DT-9205B+ Multimeter Issue

by franklin97355 on Tue Nov 07, 2017 10:56 pm

Also you might try removing one lead and using the other to test between the connections. Touch the positive lead to the ground socket and see if you get a reading. Then do it with the other lead.

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Please be positive and constructive with your questions and comments.