/community-hubs/measurement-instrumentation/b/level-weblog/posts/tips-for-accurate-dp-level-measurementsNicole Meidl Differential pressure (DP) for liquid level measurement works by measuring the hydrostatic head pressure at the bottom of the vessel and the specific gravity of the liquid. The height of the liquid in inches is the pressure of the liquiden-USTelligent Community 13https://emersonexchange365.com/community-hubs/measurement-instrumentation/b/level-weblog/posts/tips-for-accurate-dp-level-measurementsThu, 12 Nov 2020 16:22:09 GMTcd40bb2b-3d49-4868-939d-417119b40291:ebe9936d-f2bd-47dc-8fee-6792a56b36a1Cristobal Ruiz0I am assuming that for solution 2 you are describing the usage of the 1199 seal system. Is this system tested and proved for cryogenic applications? I would like to use a DP transmitter with the 1199 seal system to measure level in cryogenic services but I&#39;m not sure about the performance of the diaphragm at temperatures such as -150F. Any recommendations to minimize diaphragm sensitivity issues?<img src="https://emersonexchange365.com/aggbug?PostID=7840&AppID=38&AppType=Weblog&ContentType=0" width="1" height="1">