Calibration of digital timers with Hour, minute, seconds and milliseconds

[former_member784942]

Hi Experts,

We have several digital timers that needs calibration. They have combined digital display of HH:MM:SS:MS ex. 1:30:00.00 (Hour, Minutes, Seconds, Milliseconds) etc. with relative accuracy ± 0:00:01.00

Currently the calibration team is recording the calibrated values in an excel spreadsheet and only the qualitative MIC (Calibration passed/failed) is recorded to complete the inspection lot.

For example, The timer is calibrated using standard device for Device Under Test with intervals of 5 secs, 30 secs, 1 min, 2 min, 3min, 5 min, 10min, 30 min, 1 hour, 1.5 hour etc. and the values recorded in the excel spread sheet.

Instead of using the excel spreadsheet to attach the values to the inspection lot, we want to capture the actual calibration values in SAP using MICs.

In QM, we are able to create Master Inspection Characteristic as TIME with 4 different UOM (Hour, Minute, Seconds and Microsec)

I have tried to create multiple MIC's with 4 different UOM to create an inspection lot. However the problem is control limits for each MIC is different and not practical . Besides, if they were to take 10 readings at different time intervals, then I would have to create 40 MIC's ! which is very cumbersome. Please see the attached sample sheet.

Experts out there, please advise how can I create MICs with various UOM. I am open for any suggestions. Is there any alternate method to calibrate the timers?

[sveabecker]

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[former_member784942]

Hi Experts,

So far I haven't received any solutions for my earlier question regarding the calibration of digital timer.

Can somebody please provide suggestion how to calibrate digital timer in Hour:Min:Sec:Milliseconds

Looking forward for your help.

[former_member784942]

Has anyone done timer calibration ? If so, can you provide some solution how to calibrate a digital timer and record the results in the format of HH:MM:SS:

Appreciate your response.

[didier2]

hello Caesar,

I'm not a SAP QM specialist, but pragmatically looking to your problem, instead of using hours, minutes, seconds, milliseconds, you can easily express these 4 numbers into a single number, expressed in milliseconds or in seconds (with 3 decimals, of course)

With a conversion exit in SAPGUI, it should be possible to show this number in the desired format, or even let the user enter in the more familiar '1:30:00.00' format

regards. Dirk