Products > Test Equipment
Buying Keysight 34461A 6.5 Digit Bench DMM - Opinions?
tooki:
I chose the DMM6500 at work (I’ve used the 34465A and don’t care for the UI), and I’m quite happy with it. It does have some UI quirks, but it’s fast and powerful, and incredibly flexible. I haven’t used this feature yet, but one thing you can do in it is write your own apps, so you can make it do things it was never designed to do. One of the demo apps is a fully parametric thermistor readout, so you can make it work with any imaginable NTC thermistor.
bson:
--- Quote from: nctnico on March 30, 2024, 11:53:04 pm ---
--- Quote from: coromonadalix on March 30, 2024, 10:58:48 pm ---they should never put capacitance's checks in bench dmm ... and surely for theses low values .. OR
--- End quote ---
Having a capacitance measurement in a bench DMM is fantastic. I wound't want a bench DMM without capacitor measurement. It saves needing another instrument on an already crowded bench if you just want to check whether the right capacitor has been put on a board. OR you are not mistaken putting a capacitor back which is next to 5 other capacitors you removed from a board earlier on.
--- End quote ---
Or you picked out 25 0.1µF 0402 decoupling caps and want to quickly make sure you didn't mix anything else in. The auto hold, tabular capacitance measurements are super handy for something like this. Just quickly measure them all, moving on at the beep, no need to look up at the instrument, and then eyeball the table to verify.
Caliaxy:
--- Quote from: nctnico on March 30, 2024, 11:53:04 pm ---
--- Quote from: coromonadalix on March 30, 2024, 10:58:48 pm ---they should never put capacitance's checks in bench dmm ... and surely for theses low values .. OR
--- End quote ---
Having a capacitance measurement in a bench DMM is fantastic. I wound't want a bench DMM without capacitor measurement. It saves needing another instrument on an already crowded bench if you just want to check whether the right capacitor has been put on a board. OR you are not mistaken putting a capacitor back which is next to 5 other capacitors you removed from a board earlier on.
--- End quote ---
Have you tried one of those “smart” LCR tweezers? Not only that they don’t take any precious space on your bench, they could also be more precise. They are so tiny that, if your bench is as crowded and messy as mine, you’ll actually have a hard time find them when you need them. Case in which, indeed, a large, easy to locate bench DMM with capacitance capabilities comes in handy.
nctnico:
--- Quote from: Caliaxy on March 31, 2024, 09:06:57 pm ---
--- Quote from: nctnico on March 30, 2024, 11:53:04 pm ---
--- Quote from: coromonadalix on March 30, 2024, 10:58:48 pm ---they should never put capacitance's checks in bench dmm ... and surely for theses low values .. OR
--- End quote ---
Having a capacitance measurement in a bench DMM is fantastic. I wound't want a bench DMM without capacitor measurement. It saves needing another instrument on an already crowded bench if you just want to check whether the right capacitor has been put on a board. OR you are not mistaken putting a capacitor back which is next to 5 other capacitors you removed from a board earlier on.
--- End quote ---
Have you tried one of those “smart” LCR tweezers? Not only that they don’t take any precious space on your bench, they could also be more precise. They are so tiny that, if your bench is as crowded and messy as mine, you’ll actually have a hard time find them when you need them. Case in which, indeed, a large, easy to locate bench DMM with capacitance capabilities comes in handy.
--- End quote ---
I have read about those but have not really considered buying them so far. A quick Google shows that these things are rather expensive at between $300 to $400. At that price it doesn't really make sense for me to purchase. I see some lower cost ones but no idea whether these are worth buying. Anything needing a replaceable battery is a hard pass though.
tautech:
--- Quote from: nctnico on March 31, 2024, 09:27:44 pm ---I have read about those but have not really considered buying them so far. A quick Google shows that these things are rather expensive at between $300 to $400. At that price it doesn't really make sense for me to purchase. I see some lower cost ones but no idea whether these are worth buying. Anything needing a replaceable battery is a hard pass though.
--- End quote ---
Once they were but things are changing.
Having used SMD tweezers for 15+ years and an early convert to them I endorse Caliaxy's comments except for losing them amongst bench clutter as here they a valued tool.
Shannon's ST42 SMD smart tweezer has changed the landscape and my now old ST3 tweezers have been retired.
https://www.eevblog.com/forum/testgear/design-a-new-precision-lcr-tweezers/
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