Products > Test Equipment
[Poll] Benchtop DMM Acceptable Power On Time?
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BillyO:
I go into my lab in the morning, turn everything I may need during the day on (if it's not already on), then go get a coffee.  Nothing is ever still starting up by the time I get back, so for my process it's meaningless.
Leeima:

--- Quote from: Hydron on November 18, 2022, 01:07:24 pm ---No "It depends" choice :(
In my case the ~15s power-up time of my DMM6500 became much more acceptable once I placed a 34401A next to it, so I have something with really fast boot (a bit over 2 seconds, add another second if using the hidden settings-recall option) for quick measurements. The boot time of the 3446xA meters was a major turn-off when I was DMM shopping, and one of the reasons I went for the significantly-faster Keithley.

--- End quote ---

I've added an it depends choice. I didn't think of that option.

Had I known the 3446xA meters boot time I may have changed my choice; I still have the 34401A so I guess that will remain as the quick to use meter.
Leeima:

--- Quote from: tautech on November 18, 2022, 06:42:19 pm ---Sorry but useless poll, define DMM, bench or handheld. Then edit the topic title to accurately represent what you want the thread and poll to portray.
TIA.

--- End quote ---

I've updated the topic to refer specifically to Benchtop instruments (this was on the poll question but I missed it on the topic).  :)
But even that is broad, as I know many hobbyists use handhelds on their workbench as their primary meter - which you could class as a benchtop meter in a sense.

The purpose for the poll was to get people discussing the power on time of instruments - I just happened to have an issue with a DMM today.
The power on time is not something I have often see on spec sheets or talked about.

Ideally I'd want to see the reasoning behind the various choices people are making, but I not familiar enough with the poll tool - if it's even possible.
I suspect their would be regional opinions.






thm_w:
Doesn't really matter, if the extra time comes with suitable featureset.
eg if all it does is display voltage, resistance, etc. and nothing else, it should boot in 2s. If its a sophisticated meter that logs, graphs, converts, has color screen, then 30s is fine.


--- Quote from: David Hess on November 18, 2022, 12:07:24 pm ---A handheld meter should be ready immediately.  A bench multimeter can take time because it is going to be left on all day anyway.

--- End quote ---

Yeah if you are checking a resistor, use a handheld DMM for that.
coromonadalix:
34410a  is around 6-7 secs ..  witch is acceptable for me
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