Products > Other Equipment & Products

DMM.s

<< < (10/10)

Kiriakos-GR:
Well S.  , I can not follow this path of your thinking  .

Especially when I have examples near me , like the large Pro's Kit DMM that it is made in Taiwan ,
and under the hood , has an PCB made by Mastech .
And it is my main DMM since 1990 = 21 years until today ..
Its still rock solid and accurate , and it is completely off  at the 200MOhm range that I do not use .

Even so , I do not believe that Mastech is any king of DMM's ,
but I do believe that this model it was an true success .
( and so I have become "Model loyal"  than " Brand loyal"  )  

Do not also forget, how vulnerable are the modern Electronics !!
We get expensive mobile phones , that moisture can kill them in one night ,
if you forget them on the table at night,  under the clear sky !!

The Old Fluke models, like the bench type   8010A / 8012A / 8050A ,
are truly build to last .
But they can not follow , or be that useful with the modern needs.

What I am trying to say , are that today its harder than before ,
to find true robust electronics , like the ones found  in our past .

And so we have to evaluate daily every single product ,
no matter the brand of it .

The idea like ...  blind trust due brand loyal ship,  is DEAD to me.

    

        

saturation:
In the US, major departments like the Army, Navy or NASA have a documented set of parameters reflecting the accuracy and robustness of any tools for use in their service; if the equipment passes, samples are then thoroughly tested in labs.  So for the military to use it means they too have checked the Fluke 80 series.

To be used in the space shuttle, it would be tested at lower working atmospheric pressure and higher radiation exposure.  NASA has specifications of derating required in the design phase, in order for equipment to survive space use, and to be such, the electronics has to far more robustly made than those used on earth.  So it tells you a little bit, how well they are designed electronically and why the units last so long.

Brand loyalty is a problematic concept because all tools coming out of any 'brand' can have production defects, even if designed correctly, so you must performance check each tool you add to your lab or tool box.  

I would be skeptical if your 21 year old DMM is truly working properly, but maybe its accurate enough for your type of work or it was a defect when first bought it.  If one section of  DMM fails or is unreliable, as you suggest with your 200 Meg ohm range, I would have to be sure all the other ranges are truly working properly by a metrology quality check.  My meters are as old, and all ranges work as factory specified because that's what it was purchased for, if we needed lesser DMMs, we could have bought a cheaper one.



--- Quote from: Kiriakos-GR on May 19, 2011, 08:08:20 am ---Well S.  , I can not follow this path of your thinking  .

Especially when I have examples near me , like the large Pro's Kit DMM that it is made in Taiwan ,
and under the hood , has an PCB made by Mastech .
And it is my main DMM since 1990 = 21 years until today ..
Its still rock solid and accurate , and it is completely off  at the 200MOhm range that I do not use .

Even so , I do not believe that Mastech is any king of DMM's ,
but I do believe that this modelt was an true success .
( and so I have become "Model loyal"  than " Brand loyal"  )  

Do not also forget, how vulnerable are the modern Electronics !!
We get expensive mobile phones , that moisture can kill them in one night ,
if you forget them on the table at night,  under the clear sky !!

The Old Fluke models, like the bench type   8010A / 8012A / 8050A ,
are truly build to last .
But they can not follow , or be that useful with the modern needs.

What I am trying to say , are that today its harder than before ,
to find true robust electronics , like the ones found  in our past .

And so we have to evaluate daily every single product ,
no matter the brand of it .

The idea like ...  blind trust due brand loyal ship,  is DEAD to me.
  

        

--- End quote ---

Kiriakos-GR:
Well I do not have the mood to continue an such dialog.

Because it brings to my mind , the cars who races  like F1 , and the normal cars.
And the picture of the poor guy who gets an average normal car , and acts like F1 driver .

Even so , If I will ever decide to go to the moon , I will buy one DMM made is USSR.
There is no a single source about anything in this planet . 


saturation:
Well K, your analog is faulty, F1 cars are very unreliable, it needs a team of people to keep it working.

Its probably more like military surplus binoculars, or just a military grade backpack, if it was designed to survive the abuse by the military, to work in desert heat and freezing artic weather, it should be good enough for you to use for civilian use.  Because these tools are mass produced it can easily be found in surplus stores, brand new, and very cheaply too.

To be more specific, there was a military grade Fluke issued in the 1980s, the Fluke 27, and that is built like a stone.


--- Quote from: Kiriakos-GR on May 19, 2011, 10:47:28 am ---Well I do not have the mood to continue an such dialog.

Because it brings to my mind , the cars who races  like F1 , and the normal cars.
And the picture of the poor guy who gets an average normal car , and acts like F1 driver .

Even so , If I will ever decide to go to the moon , I will buy one DMM made is USSR.
There is no a single source about anything in this planet .  


--- End quote ---

Kiriakos-GR:
The truth is that I do hide some admiration about Fluke and especially for the specific models like 8010A / 8012A / 8050A .

When I did read the service manual , about PCB disinfection ,
like that you can wash it out, and let it for hours in to a oven at 60 C so to be cooked up and dry.

I had an huge and major surprise.

But I can not say the same about the fresh made ones ( Last decade )   

And so nothing will convince me about that if an model stands up to all the quality factors ,
other than lots of positive testimonials about it.

Navigation

[0] Message Index

[*] Previous page

There was an error while thanking
Thanking...
Go to full version