Author Topic: hard, sharp meter probes that can withstand being used to scratch components?  (Read 4662 times)

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Offline thomTopic starter

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POE switches are a common one. can't really automate a repair shop, every board is damaged in a different way (and currently I'm doing about 50 different products), and I'm not just testing fets, I'm testing diodes, current sensors, shunts, etc.

@DC1MC: wow, those tungsten tips are pretty much exactly what I need, THANK YOU!!!!!!
« Last Edit: December 16, 2022, 12:11:46 am by thom »
 

Offline DC1MC

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POE switches are a common one. can't really automate a repair shop, every board is damaged in a different way (and currently I'm doing about 50 different products), and I'm not just testing fets, I'm testing diodes, current sensors, shunts, etc.

@DC1MC: wow, those tungsten tips are pretty much exactly what I need, THANK YOU!!!!!!

Most welcome, whatever of of them you buy please post pictures and report about quality, with all the cr@p going in the industry is goo to check if the quality remains.

Cheers,
DC1MC
 

Offline floobydust

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I repair lightning damaged devices for a living...
It's winter in Canada, no lightning happening for 6 months!  :P
This summer had three mild storms total, pretty much nothing.
 

Offline thomTopic starter

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95% of my clients are in the US, but regardless, wind itself can be enough to cause massive ground po0tejntial differences between the top oif a poorly grounded tower, and the ground. this alone is enough to blow the equipment I work on.

also, I don;'t know what part of canada you are from, but my lab had 8 days without power from a single storm this summer, we had trees blocking roads in town for even longer.
 

Offline thomTopic starter

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doesn't look like aluminum, but it is a very soft metal. the injection moulding is dollar store quality, shockingly terrible for such an expensive set of probes. poking a solder pad on 2 wire with the SS tips gives me about .163ohm, .104ohm with the gold pogos. for a simple guy like me, that's what I call "very nice". I imagine I'll wear the SS tips down in short order, so I'll be ordering the 1.0mm tungsten electrodes and we'll see how they work and I'll update this thread periodically
 

Offline Black Phoenix

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I remember that Fluke had some hardpoint probes, the TL75. That's their most basic tip set. Don't know how easy they leave a mark in the components if you want to scratch it but the tip is definitely difficult to bend (I had some laying around and tried and sure enough you need some pliers to damage the tip).

The other probe I use and it's definitely pointy, to the point (pun intended) I have to use tip sleeves to protect against damage on the case or physical injuries. The tips are very hard, being made of stainless steel. That's the TP220 that needs a the TL224 or equivalent 4mm shrouded leads to be used.

I don't know how much is needed to make the pointy tip get dull, since I don't use my DMM probes as a marking tool.
« Last Edit: December 20, 2022, 03:38:26 am by Black Phoenix »
 

Offline thomTopic starter

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UPDATE: thhe tungsten electrodes were perfect.  these are the ones I bought : https://sunstonewelders.com/orion-micro-tig-welding-electrodes

and I can say that they are phenomenal. I shaved 2cm off the bottom and they outperform EVERY tip included with the pomona probes.

on a different note, the pomoina SS tips have a beveled rear end and make shite contact with the probes themselves, I think that might be the problem people are having with those, since the gold plated tips have a flat bottom
 
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Offline joeqsmith

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Thanks for the feedback. 

Offline artag

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Doesm anyone make test probes that will accept the standard-sized spring-loaded probes used for ATE fixtures ?
They come in a big variety of tip types.
 
 


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