# Zero check and static zero check on a DP flow transmitter

**URL:** <https://forumautomation.com/t/zero-check-and-static-zero-check-on-a-dp-flow-transmitter/77>\
**Category:** Flow Measurement\
**Created:** [October 2, 2014, 6:09pm UTC](https://forumautomation.com/t/zero-check-and-static-zero-check-on-a-dp-flow-transmitter/77 "2014-10-02T18:09:18Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![instrumen](https://forumautomation.com/letter_avatar_proxy/v4/letter/i/65b543/32.png) [@instrumen](https://forumautomation.com/u/instrumen)\
**Post date:** [October 2, 2014, 6:09pm UTC](https://forumautomation.com/t/zero-check-and-static-zero-check-on-a-dp-flow-transmitter/77/1 "2014-10-02T18:09:18Z")

</div>

Zero check- A procedure for checking the transmitter output is equal to 4.00 mA when its HP & LP chambers are equalized and are at the atmospheric pressure   
Static zero check- A procedure for checking the transmitter output is equal to 4.00 mA when its HP & LP chambers are equalized and are at the operating pressure.