They must be binding on the sleeve behind the Gnd ring behind the tip.
Can you see any bulging behind the tip that might cause this problem ?
I can't see anything suspicious.
Try seating this plastic sleeve further onto the probe just in case it hasn't been assembled properly at the factory Siglent get these from.
I think you are talking about a sleeve that don't exist anymore on the new probes? On the PP215 probes for my SDS1204X-E there is a moveable plastic sleeve that covers the ground and slides into the probe hat. The new ones have a different sleeve that I can't adjust:
The new probe at the top, and the old probe at the bottom.
I don't see the slow retraction effect on my old probes btw, but I was thinking perhaps this was related to the new design.
The grabber hats should operate without the restriction of free movement your gif displays.
If not a simple fix claim a warranty replacement.
Oh and BTW check swapping grabber hats around between all your probes doesn't produce different results....just thinking you may have 2 different production lots with slight physical differences for the grabber hats to bind like in your gif.
Good idea, I did a mix and match of all the probes and hats:
I did find a combination that works pretty ok for all the probes at the same time, luckily. I'll try like this and see how it works out.
Seems the probes and the probe hats weren't matched were well initially. That must be a missing quality assurance step during assembly of the probes, as it would be noticed right away by testing the mechanics of the probe once. Maybe it's usually not necessary to match them as closely, and it's a production issue with some parts only. I think a test step should be a must in any case.
Thanks for the help tautech!