In Reply to Parent Post by Somnoi777
I'm a newbie here.
We are the environmental consultant for monitoring and report the result of measurement. We have a lot of instruement for measurement follow as client requirement. The calibration of instrument have 2 levels, calibrating the instrument before use with a calibrator that we will sent calibrator or instrument to re-calibrate by calibration laboratory service. Calibration frequency for all instrument or calibrator always re-calibrate in 12 months follow as the manual of instruments.
The Vibration Meter have a requirement to annual calibration to ensure continued accurate monitoring result. But the calibration service charge is 482$/ 1 set. We have 8 set of instrument. I need to set the frequency of calibration to 2 years/ 1 times. And I need to write the documents to support this requirement in order to issured the refference when client have visit or audit our department.
what is the precise question you asked for?
I guess you would like to reduce the frequency of calibration of the tools due to reduction costs, isn't it?
Do you set criteria for this in your process of monitoring and measuring device control?
Do you have done studies and have historical data and related analysis to support your decisions?
How much critical are this tool?
I do not know if these considerations of mine can help you to better frame the problem and take a decision. Waiting for other expert covers suggestions for this issue.