"Calibration Not Required" label requirements

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lego55

#21
How long is a piece of string?

There are so many variables. What is required is competence in the Calibration of Equipment. Have you considered outsourcing your calibration function? Not jsut Calibration - but the calibration Process!
About each year we have an accredited lab calibrate all our mics, instruments, master blocks, surface plates, etc. But, we have sets and sets of uncalibrated "reference only" plugs, pins, and blocks. If we have to calibrate all of those, it will add considerable $ to what we annually give our lab. The lab provides us with IDs, a database, etc. Just trying to figure out the best and least expensive way.
 
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bobdoering

Stop X-bar/R Madness!!
Trusted Information Resource
#22
About each year we have an accredited lab calibrate all our mics, instruments, master blocks, surface plates, etc. But, we have sets and sets of uncalibrated "reference only" plugs, pins, and blocks. If we have to calibrate all of those, it will add considerable $ to what we annually give our lab. The lab provides us with IDs, a database, etc. Just trying to figure out the best and least expensive way.
Cheapest approach: Lock them up. If you need to measure something with them, send them out then and add them to the active list. Only calibrate what is used to measure product and process to keep cost at minimum. Lock up the rest.
 
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Richard Pike

#23
About each year we have an accredited lab calibrate all our mics, instruments, master blocks, surface plates, etc. But, we have sets and sets of uncalibrated "reference only" plugs, pins, and blocks. If we have to calibrate all of those, it will add considerable $ to what we annually give our lab. The lab provides us with IDs, a database, etc. Just trying to figure out the best and least expensive way.
I am sorry I dont understand -- Reference only -- pins - plugs -- blocks - can u explain what you do with these - if we have the facts then maybe we can be of practical help.
 
L

lego55

#24
I am sorry I dont understand -- Reference only -- pins - plugs -- blocks - can u explain what you do with these - if we have the facts then maybe we can be of practical help.
Before I started here, it was established that many sets of uncalibrated pins and blocks were marked "reference only." Operators have to verify them first before using with customer's product. Also, there are calibrated Master sets of pins and blocks used by Inspection. I think it was to save $.

Don't we have to calibrate all measuring tools or instruments (gages, pins, blocks, etc.) before using on customer product?
 

Stijloor

Staff member
Super Moderator
#25
Before I started here, it was established that many sets of uncalibrated pins and blocks were marked "reference only." Operators have to verify them first before using with customer's product. Also, there are calibrated Master sets of pins and blocks used by Inspection. I think it was to save $.

Don't we have to calibrate all measuring tools or instruments (gages, pins, blocks, etc.) before using on customer product?
OK, how important is it for you to know that your devices are telling the truth? BTW, "For reference only" is the biggest excuse for not doing anything. No one has been able to provide me an adequate interpretation for this... I agree with my friend Bob Doering, if they're not used or important, lock 'em up."

Stijloor.
 
L

lego55

#26
I agree with it all! Thanks for the discussion!

Okay...now, can someone give me examples of how often they calibrate these types of measuring devices? I can't imagine they change too much without moving parts. What is a realistic interval? 6 months? A year? Couple of years? I prefer not to have my outsource lab tell me. :rolleyes:

Thank you!
 

Stijloor

Staff member
Super Moderator
#27
I agree with it all! Thanks for the discussion!

Okay...now, can someone give me examples of how often they calibrate these types of measuring devices? I can't imagine they change too much without moving parts. What is a realistic interval? 6 months? A year? Couple of years? I prefer not to have my outsource lab tell me. :rolleyes:

Thank you!
All depends on frequency of use. Personally, I am not directly involved with calibration processes. Let's see what others have to say..;)

Stijloor.
 

bobdoering

Stop X-bar/R Madness!!
Trusted Information Resource
#28
I agree with it all! Thanks for the discussion!

Okay...now, can someone give me examples of how often they calibrate these types of measuring devices? I can't imagine they change too much without moving parts. What is a realistic interval? 6 months? A year? Couple of years? I prefer not to have my outsource lab tell me. :rolleyes:
Your outside lab can not, and likely will not tell you how frequently to calibrate your gages.

The correct answer is "It Depends."

How often is the gage used? Once a day? 10 times a day? 100 times a day? Wat surfaces are they used against? What processes are they used at? Gages at CNC centers typically wear slower than those at grinding centers, because the parts are not usually cleaned sufficiently, and the grinder coolant wears the gages very fast. There are many factors. Usually tracking the wear between calibrations will give you an idea, if they are used for the same operation. If they wander around the plant, there will be no way to to accurately track the wear issue.

So, there is no equation or rule of thumb that can tell you with certainty the calibration frequency. You can try annual for lightly used gages, and semi-annual for heavily used gages...until more info is developed from those records.
 
L

lego55

#29
I look forward to getting things set "right!" As usual, I won't be the most popular person here, but I'll feel much better getting them on track. "Popular" is overrated anyway, right?

Thank you all for your great information and support!

:D
 
R

Richard Pike

#30
Your outside lab can not, and likely will not tell you how frequently to calibrate your gages.

T
An outside calibration lab cannot determine frequency -of course.

however many labs provide a holistic service, where they will come in-house and using their expertise will assess the situation (useage etc etc) and then recommend frequencies , procedures etc.

I think the original Poster is in desperate need of such advice.
 
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