Home » Transmitter Calibration Range of a Vessel Level
Practical Questions

Transmitter Calibration Range of a Vessel Level

The following storage vessel holds liquid heptane, a hydrocarbon with an approximate specific gravity of 0.68.

A pressure transmitter located at the bottom infers heptane level by hydrostatic pressure (head).

Determine the calibration range of this pressure transmitter in order to properly translate the range of vessel level (0 to 14 feet) into an output signal of 4 to 20 mA.

Transmitter Calibration Range

Transmitter Calibration Range of a Vessel Level Please express the transmitter’s calibration range in units of inches W.C. (inches of water column).

Then, determine the following (assuming the transmitter has been properly calibrated for the application):

Transmitter output signal (mA) at 8 feet of level

Heptane level at 5.7 mA signal output

Answer

Lower range-values (LRV): 0 inches W.C. input = 4 mA output

Upper range-values (URV): 114.24 inches W.C. input = 20 mA output

Transmitter output signal (mA) at 8 feet of level = 13.14 mA

Heptane level at 5.7 mA signal output = 1.4875 feet

Share your answers & explanation with us through the below comments section.

Read Next:

Credits: Tony R. Kuphaldt

Share With Your Friends

Related Articles

A Question on Density Gauge

S Bharadwaj Reddy

Questions on Pressure Transmitter Calibration Setup

S Bharadwaj Reddy

Something is Wrong with Strain Gauge Bridge Circuit

S Bharadwaj Reddy

Programmable Logic Controller (PLC) Questions and Answers – 5

S Bharadwaj Reddy

A Series of False Pressure Alarms

S Bharadwaj Reddy

Galileo Thermometer

S Bharadwaj Reddy

Leave a Comment

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More

Transmitter Calibration Range of a Vessel Level

WordPress Image Lightbox
Send this to a friend