| Electronics > Beginners |
| Maximum Scope Voltage |
| << < (4/4) |
| tautech:
--- Quote from: tooki on October 09, 2018, 05:53:32 pm ---Honest question: why do we even use switchable probes? In what situations is a x1 probe preferable to a x10? --- End quote --- Many might never need to use a probe on 1x setting but when you need the extra resolution, you need it ! The most common 1x probe requirement is checking ripple on power supply rails. For a linear PSU a DMM is often sufficient but not all DMM's can display the AC component at SMPS frequencies. With sensitive scopes, those that might have some uV/div input selection the need for 1x probes is much reduced. --- Quote ---It seems to me that the x1 position is used so spectacularly rarely — and is a clear source of unreliability and/or user error — that I wonder why we don’t just use fixed x10 probes, and let the few who need x1 buy them separately (it’s not as though they cost much!). --- End quote --- User error and unfamiliarity with their equipment is the biggest risk..........know your tools and how to properly use them ! The best tool on the bench is the one between your ears ! Some years back I decided to focus on scopes only with 400V rated inputs as all but the mid and high level units come with switchable probes and as much equipment/appliances have SMPS and with the extent of which they fail the EE is often needing to repair them and here in NZ rectified mains is ~325V so it's obvious a 300V rated scope is looking down the barrel of possible damage. I don't need that nor do my customers ! The best investment for those working with higher voltages where probe voltage vs frequency spec might be challenged is some 100x probes as their addition cost is little compared to popping the inputs of your scope. :scared: |
| tooki:
I understand what you are saying. It just seems to me that x1 (like higher ratios, like x100) are a fairly rare use case compared to x10, and that the vast majority of users — at least of a low-end scope like a beginner will get — stand very little to gain from a switchable probe. I think it’d make far more sense to ship with fixed x10 probes and then let the handful of folks who need x1 or x100 or whatever buy those as accessories. Ditto for the handful of people who routinely switch between x1 and x10, let them buy switchable as an accessory. It’s not as though they cost very much. I just know that I find the switch to be an annoyance that I wish were not there. |
| Navigation |
| Message Index |
| Previous page |