AMS 2750F has been reviewed and updated with the revision G at the end of June 2022, the document has the same length. Revision G deleted some tables, now there are only 22. Small changes have been made to better clarify the meaning. Transition requirements from Rev. E to Rev. F (allowed for 2 years) have been eliminated with only one transition exception:
Digital recording instruments that read only integers may be used for 1 year after the release of AMS 2750 Rev. G and must have a maximum calibration accuracy of ±1 °C or ±0.2% of the temperature reading rounded toward the smallest integer.
This latest transition is extended to 1 year after the release of Rev. G (see 18.104.22.168.1), so applicable from June 29, 2023 (as the last date), then all temperature recorders must be digital and read the decimal degree (°C or °F).
What has changed?
- Rev. G removed all references to analog instruments, only the digital ones are allowed!
- Sensitivity Test has been deleted and no longer required for digital instruments ....... however you should take into account your customers’ requirements.
- For load sensors, required in vacuum furnaces, records must include sensor batch number, load cycle, temperature and usage count which must include usage during SAT and TUS.
- Table 6 rewritten to remove decimals – It rearranges Celsius version of Rev. E.
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