Formula for measuring liquid level with EJA differential pressure transmitter
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There is a clause in the instructions for EJA differential pressure transmitters stating that if the transmitter cannot be installed 600 mm below the high-pressure side, the following formula should be used: h = (P – P0) / ds * 0.102. Here, h represents the vertical distance between the high-pressure side process connection and the transmitter; h0 is the distance below which the transmitter should be installed above the high-pressure side process connection; P is the pressure in the liquid tank; P0 is the minimum operating pressure of the transmitter; and ds is the specific gravity of the filling fluid. What does this formula mean, and what is its purpose?
Differential pressure level transmitters should generally be installed below the pressure tapping on the positive pressure side.
I wonder which factory the original poster’s product comes from, and what version of the manual it uses? The manual we have doesn’t contain such information. Could the original poster upload one?
Original poster, give me some incentive and I’ll tell you everything; don’t ask them, they don’t understand either.
Do you understand? Do you really understand? Do you really understand?
Do you understand? Do you really understand? Do you really understand?
Do you understand? Do you really understand? Do you really understand?
I didn’t notice this formula; I’ll take a closer look later
I’m already in fifth grade; there’s nothing I don’t understand. As for this damn formula, it’s actually not very useful at all; the length of the capillary limits how far you can move, and I doubt you’d understand even if I explained it to you. And then there was that idiot from last time; I told him that the level sensor had to be placed below the double flanges, but he argued with me. Now you can see that the instructions are written clearly and plainly.
1/g = 1/9.8 = 0.102. Don’t be confused by 0.102; the pressure formula is still p = ρ*g*h (where ρ is density)