Author Topic: Good sharp fine tip multimeter probes with very flexible leads  (Read 1988 times)

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Online 2N3055

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Re: Good sharp fine tip multimeter probes with very flexible leads
« Reply #25 on: September 20, 2019, 06:39:51 am »
I think the other end is stainless tubing, at least for my set. I dont see it as aluminium because it's particularly soft and its easily damaged when small force is applied especially with such thin tubing.

My probes issue was fixed by tugging and twisting the wires near the end of the handle. The crimp connection near the wire is the problem. Probe Masters are soldered not crimp. So its much better solution.

It is aluminium and a very soft one. You can shave it with a blade like a butter..
 

Offline FreddieChopin

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Re: Good sharp fine tip multimeter probes with very flexible leads
« Reply #26 on: September 20, 2019, 05:56:53 pm »
I think the other end is stainless tubing, at least for my set. I dont see it as aluminium because it's particularly soft and its easily damaged when small force is applied especially with such thin tubing.

My probes issue was fixed by tugging and twisting the wires near the end of the handle. The crimp connection near the wire is the problem. Probe Masters are soldered not crimp. So its much better solution.

It is aluminium and a very soft one. You can shave it with a blade like a butter..

You could probably replace it with a sharpened tungsten electrodes used for TIG welding. They are very hard and pretty cheap.
 

Online 2N3055

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Re: Good sharp fine tip multimeter probes with very flexible leads
« Reply #27 on: September 20, 2019, 06:24:46 pm »
I think the other end is stainless tubing, at least for my set. I dont see it as aluminium because it's particularly soft and its easily damaged when small force is applied especially with such thin tubing.

My probes issue was fixed by tugging and twisting the wires near the end of the handle. The crimp connection near the wire is the problem. Probe Masters are soldered not crimp. So its much better solution.

It is aluminium and a very soft one. You can shave it with a blade like a butter..

You could probably replace it with a sharpened tungsten electrodes used for TIG welding. They are very hard and pretty cheap.

Not the tips. Tips are pogo pins or SS hard tips. They are very good. It's the tube inside handle that you insert tips into.. That one is made of soft aluminum, that is connected somehow to other piece of brass tube that is crimped on the cable and that whole thing is injection molded around it into plastic handle.
 

Offline chris_leyson

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Re: Good sharp fine tip multimeter probes with very flexible leads
« Reply #28 on: September 20, 2019, 07:44:23 pm »
After the third or fourth failure of a pair of Fluke TL910 probes in three or four years I decided to open up the a probe. On high density surface mount boards I was making less than 100 measurements in a week on average. It would appear that the open circuit was somewhere where the cable is crimped to the internal brass tube, I might have been in the cable just behind the crimp. The connection from the brass tube to the probes themselves was OK.

When I first discovered the TL910 probes I splashed out and bought myself a pair and they were not cheap at the time and I think they are £68 from Farnell these days. When they work they are great for high density surface mount debugging but when they fail you are stuffed, what do you use to probe 0402 or 0201 components ? I still have them but rarely use them.

I think Fluke and Pomona need to step up their act and have a design review with a failure analysis.
The probes might get a 5 star review but that is probably when they are brand new and just out of the packet.

To be honest I wouldn't be surprised if it hasn't got something to do with moisture ingress findind its way to the cable.

Dave did a review a while back and I wonder if they're still working.



Edit: Actually I really like the pogo pin approach to probe tips because you can always buy new pins if the need arises and you have the option of different pin styles for different situations.

If they really cost £68 a pair and you buy one or more pairs of test leads a year then that's equivalent to how many Fluke multimeters ? It's quite a sizable income.
« Last Edit: September 20, 2019, 08:05:04 pm by chris_leyson »
 

Offline tooki

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Re: Good sharp fine tip multimeter probes with very flexible leads
« Reply #29 on: September 25, 2019, 02:14:16 am »
Another vote for probe master here. I have both their fine, spring loaded probes and their regular probes.

Even the regular probes (which are gold plated stainless steel) are extremely sharp, easily able to draw blood, and fine enough for most components. Maybe not 0201, but they work fine for 0402. Without a receiving tube for the pogo pin insert, these probes cannot really fail. (I did have the fine spring loaded ones fail, which they replaced under warranty.)
 

Offline ender4171

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Re: Good sharp fine tip multimeter probes with very flexible leads
« Reply #30 on: October 21, 2019, 03:28:30 pm »
I will through my lot in with ProbeMaster as well.  I have a bunch of their DMM and DSO/MSO stuff, but for basic probes, you can't really beat their 8000 series on price or quality.  Their customer services is out of this world as well, should you ever need it!
 


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