Closed tank DP Level Transmitter with wet leg elevation zero remote mount Calibration

The DP level transmitter installed below HP tapping point with wet leg.Schematic Diagram of a Closed tank DP Level Transmitter with wet leg elevation zero remote mount Calibration
Closed tank DP Level Transmitter with wet leg elevation zero remote mount Calibration
Closed tank DP Level Transmitter with wet leg elevation zero remote mount Calibration
closed-tank-dp-level-transmitter-with-wet-leg-elevation-zero-direct-mount-calibration

Formulas:

Min range = (SG x X1) – (SG x H)

Max range = [(SGxX1) + (SGxX2)] – (SGxH)

Example:

If the height is 1 meter an X1, X2 is 3 meters and a height H is 4.5 meters, in the tank there is cairin which has a density of 1 g / cm3, what is the range of calibration on the transmitter?

SG = 1

Min range = P High – P Low

= (SG x X1) – (SG x H)
= (1 x 1) – (1 x 4.5)
= 1 -4.5
= – 3.5 mH 2 O

Max range = P High – P Low

= [(SGxX1) + (SGxX2)] – (SGxH)
= [(1×1) + (1×2) – (1×4,5)
= 4 to 4.5
= -0.5 MH 2 O

The transmitter Range = -3.5 to -0.5 mH 2 O

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