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

Last updated: September 14, 2016 7:11 pm
Editorial Staff
Calibration Level Measurement
4 Comments
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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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4 Comments
  • chinmay says:
    November 19, 2015 at 2:49 am

    Easy to learn.. but all students needs to calculate the range by themselves.. beacause one printing mistake is there.

    Reply
    • S Bharadwaj Reddy says:
      November 19, 2015 at 10:06 am

      Hi, Please elaborate the details.

      Reply
  • Seenivasagam says:
    November 27, 2017 at 7:31 am

    In the max range calculation x2 height is mentioned as 2…Our actual range is 3…So let to be corrected in the value

    Reply
  • umesh says:
    August 25, 2018 at 11:59 am

    very useful

    Reply

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