How to calculate the range using this instrument data sheet?
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This post was last edited by liu530014416 on 2020-4-7 16:48. 1. Dear teachers, how do I calculate the range? How are the two arrow data values calculated? 2. It is often said that when calibrating a double-flange level gauge using a handheld controller, if the range is calculated incorrectly, will the intelligent migration performed by the handheld controller be accurate?
The data has been transformed by the differential pressure transmitter, and it is calculated using the formula P = density * 9.8 * height
For the 12V-1906 differential pressure gauge, if there is no drift, its range is 0~8.96 KPA; if no drift occurs, it is also possible to perform a zeroing operation when the liquid level reaches the low-pressure side.
I checked, and it means that zeroing can only be done when the range setting is correct; if the range setting is incorrect, it’s impossible to perform the reset no matter what.
In other words, zeroing must be done with the range set to the correct value; if the range setting is incorrect, it’s impossible to perform the reset no matter what.
You should perform the reset operation when there is no range shift, and ensure it is done when the reading is at zero
This post was last edited by kyy2121 on 2020-4-10 at 20:36. I’m thinking that the installation diagrams for the first transmitter and the second transmitter should be reversed, that is, the positive and negative pressures should be switched around.
Based on range estimation, the latter in the density range is 1158.6
1. The range is determined by the installation diagram, i.e., the actual installation location, as well as the distance between the upper and lower pressure sampling points. A 2-range setting is a prerequisite; what’s the point of performing migration if the range is incorrect?
The zeroing operation is carried out by bringing the two flange surfaces to the same level; first, the value is reset to the initial setting of 0-XX KPa, and then zeroing is performed.