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Reading: Closed tank DP Level Transmitter with wet leg elevation zero direct mount Calibration
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Inst Tools > Blog > Calibration > Closed tank DP Level Transmitter with wet leg elevation zero direct mount Calibration

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

Last updated: September 14, 2016 7:08 pm
Editorial Staff
Calibration Level Measurement
1 Comment
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The DP Level transmitter installed very near to HP tapping point and configured in wet leg.Schematic Diagram of a Closed tank DP Level Transmitter with wet leg elevation zero direct mount Calibration

Closed tank DP Level Transmitter with wet leg elevation zero direct 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 0.5 cashew an X1, X2 is 2 meters and height H is 3 meters, there is fluid in the tank 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 0.5) – (1 x 3)
= 0.5 to 3
= – 2.5 mH 2 O

Max range = P High – P Low

= [(SGxX1) + (SGxX2)] – (SGxH)
= [(1×0,5) + (1×2) – (1×3)
= 2.5 – 3
= -0.5 MH 2 O

The transmitter Range = -2.5 to -0.5 mH 2 O

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1 Comment
  • karan bansal says:
    January 23, 2016 at 11:35 am

    Pls tell what is difference b/w in “Closed tank DP Level Transmitter with wet leg elevation zero direct mount Calibration” and “Closed tank DP Level Transmitter with wet leg Zero elevation Calibration” in field installation.

    Reply

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