# Free Instrumentation Excel Spreadsheet tools Hydrostatic Level Calculator and Orifice plate flow error calculator

**URL:** <https://forumautomation.com/t/free-instrumentation-excel-spreadsheet-tools-hydrostatic-level-calculator-and-orifice-plate-flow-error-calculator/558>\
**Category:** Software and Tools\
**Tags:** level\
**Created:** [November 8, 2015, 1:36am UTC](https://forumautomation.com/t/free-instrumentation-excel-spreadsheet-tools-hydrostatic-level-calculator-and-orifice-plate-flow-error-calculator/558 "2015-11-08T01:36:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![denizen](https://forumautomation.com/letter_avatar_proxy/v4/letter/d/848f3c/32.png) [@denizen](https://forumautomation.com/u/denizen)\
**Post date:** [November 8, 2015, 1:36am UTC](https://forumautomation.com/t/free-instrumentation-excel-spreadsheet-tools-hydrostatic-level-calculator-and-orifice-plate-flow-error-calculator/558/1 "2015-11-08T01:36:43Z")

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Two useful spreadsheet tools for instrumentation engineers

Hydro static Level calculator and Orifice plate flow error calculator

System Requirements - Windows PC with Microsoft Excel installed

**Hydrorstatic Level calculator**

With this spreadsheet transmitter range value can be calculated by entering vessel and liquid parameter . With this tool Hydrostatic pressure can be measured

 ![hydrostatic pressure measurement](https://cdn.forumautomation.com/original/1X/8673c9da43f7c8ced14e604a789ae1ab4c3786ea.jpg)

You can download the Hydrostatic Pressure measurement (Level Measurement - Transmitter LRV and URV calculator) tool from automationforum

[INST240\_hydrostatic\_level.xlsx](https://cdn.forumautomation.com/original/1X/3b0264a4ea1cd997b681ced9862338cca9dbc11c.xlsx) (12.9 KB)

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<div class="post-metadata">

**Author:** ![denizen](https://forumautomation.com/letter_avatar_proxy/v4/letter/d/848f3c/32.png) [@denizen](https://forumautomation.com/u/denizen)\
**Post date:** [November 8, 2015, 1:48am UTC](https://forumautomation.com/t/free-instrumentation-excel-spreadsheet-tools-hydrostatic-level-calculator-and-orifice-plate-flow-error-calculator/558/2 "2015-11-08T01:48:33Z")

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**Orifice Plate Flow Error Calculator**

This spreadsheet allows you to enter values for maximum flow rate (GPM) and differential pressure (WC) at that flow rate for an orifice plate and then it calculates the displayed flow rate given a specified DP measurement error (eg resulting from uneven liquid heights in impulse line or DP transmitter zero error).This purpose of this simulation is to demonstrate how the flow measurement for a DP based flow meter increases dramatically at low flow rates,thus illustrate the poor turndown ratio of DP based flowmeters.

 ![Orifice plate calculation spreadsheet](https://cdn.forumautomation.com/original/1X/dca1ef83b1de012cacd30e08a4e54ea5c77058f8.jpg)

**Orifice Plate error calculator(Differential Pressure transmitter )**[INST241\_DP\_flow\_error.xlsx](https://cdn.forumautomation.com/original/1X/17f44be901afbe7c2165d5a8def4f918c1115a79.xlsx) (12.9 KB)