I will need some more information in order to rectify your situation.
1. Who did the calibration of the gage? It was done through Electronics Inc. the certificate of calibration included the gage head and the entire gage should be recalibrated on Jan. 20th.
2. Was the new gage head installed after the last calibration of the gage? If that is the case, since a new component was instaled onto the gage, the entire gage should have gone through recalibration. That recalibration would have included the new gage head and everything would be rescheduled for the same date.
3. Did you purchase the gage head from Electronics Inc.? If you did, you did not receive a certificate of calibration but instead received a Certificate of Conformance indicating that it was manufacture to SAE J442 specifications.
Ultimately, if you installed a new gage head onto a Almen gage, regardless of wether you received a calibration certificate with the head, the entire gage should have been recalibrated.
