# What are the impact from the environment on pressure calibration?

**URL:** <https://forumautomation.com/t/what-are-the-impact-from-the-environment-on-pressure-calibration/1647>\
**Category:** Calibration\
**Created:** [January 11, 2017, 4:17am UTC](https://forumautomation.com/t/what-are-the-impact-from-the-environment-on-pressure-calibration/1647 "2017-01-11T04:17:27Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![denizen](https://forumautomation.com/letter_avatar_proxy/v4/letter/d/848f3c/32.png) [@denizen](https://forumautomation.com/u/denizen)\
**Post date:** [January 11, 2017, 4:17am UTC](https://forumautomation.com/t/what-are-the-impact-from-the-environment-on-pressure-calibration/1647/1 "2017-01-11T04:17:27Z")

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A pressure calibration can be impacted by the environment around it.

Temperature - Almost everything that measures pressure is also impacted by temperature. Pressure calibrator manufactures will characterize and compensate,but they still perform best over a given temperature range.

Gravity - Acceleration of gravity varies by location.A traditional deadweight tester is impacted by this.

Head height - A large difference in elevation between the reference and the device under test will create an error.