Hi Charles,
There are notes in my calibration certification stated that ' The estimated uncertainty of the calibration results given is +/- 0.9 ◦C. at 95 % confidence level".
For now, what I need to do is to zero or replace the temperature gauge right? Have any other option other than that?
Based on your solution, it is okay if I used Infra red thermometer to check all the sealing bars to ensure the reading are within the limit?
My biggest problems is how i am gonna to write the corrective action to send back to my auditor.
Btw thanks for your advise=)
Hi dyiah,
Not sure as to the Standard involved (if any). This may be relevant to yr options.
The interpretation/usage of Calibration Certificates in the context of temperature critical limits can be complicated. Can see the lengthy discussion in this thread -
http://www.ifsqn.com...ence-equipment/
Particularly see the linked document in Post 5 which is IMO very useful and readable.
My own conclusion is summarised in Post 19 but as you can see, this is subjective.
Can also see this short thread -
http://www.ifsqn.com...ing-ccp-limits/
Yr options depend on things like -
(a) whether yr current thermocouple/gauge has a zero adjust ?.
(b) whether yr declared calibration tolerance has been exceeded or not ?.
(c) whether a suitable calibrated alternative gauge exists ?.
(d) whether you can change yr critical limits ?.
Edited by Charles.C, 15 January 2018 - 06:01 PM.
corrected link