accurasy difference between DT71 and FLUKE177 measuring devices

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yef smith

Joined Aug 2, 2020
841

tautech

Joined Oct 8, 2019
409
A DMM is not as useful tool for measuring a wide range of componentry as what SMD tweezers can.
As a SMD smart tweezers convert of 2 decades I do trust tweezers over a DMM in near all cases.
In-Circuit testing ether can wrong as there is often parallel electrical paths that can muck with measurements.

If you have the budget I recommend ST42, a quite new product I have been testing for a few months after receiving a sample unit.
https://shannontweezers.github.io/docs/introduction/
 

nsaspook

Joined Aug 27, 2009
13,591
Hello, I have two device which could measure capacitors and resistors.
For the DT71 i have found the table which i understand.
The table for the fluke is problemtaic.
What is the range of capacitance and resistance that the fluke could function?
In what cases you reccomend to use the Fluke 177 and in what cases you reccomend to use DT71?
Thanks.

https://assets.fluke.com/manuals/175_____umeng0000.pdf
https://files.seeedstudio.com/products/110991444/User Manual.pdf

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You really need both. The 177 is a great tool for it's expected circuit measurement functions.
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The Fluke table is actual calibrated measurement range data that you can trust. It does require a simple understanding of measurement metrology.
https://www.fluke.com/en-us/learn/blog/digital-multimeters/accuracy-precision
 

tautech

Joined Oct 8, 2019
409
Because all electrical components are not tweezer sized and the Fluke is likely to be much more accurate when it matters.
Just what is tweezer sized ?
In nearly 20 years of using them the # of times something was too large and required leads soldered on has been rare.
The sets I use can have their legs widened to enable testing of most everything I have encountered and some were large TH components, monstrous by today's standards.
 
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