# Flow Measurement **URL:** https://forumautomation.com/c/field-instrumentation/flow-measurement/39.md?page=1 [Latest](https://forumautomation.com/latest.md) · [Categories](https://forumautomation.com/categories.md) · [Tags](https://forumautomation.com/tags.md) **Page:** 2 --- ## [Nutating flow meter basics](https://forumautomation.com/t/nutating-flow-meter-basics/3090)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [February 5, 2018, 6:16pm UTC](https://forumautomation.com/t/nutating-flow-meter-basics/3090 "2018-02-05T18:16:02Z")
Nutating flowmeter is a positive displacement type flowmeter. Other names for these meters are disk or wobble plate meters. Design & Operation: The top and bottom surfaces of the measuring chamber are conical, ex… --- ## [How open channel flow can be measured?](https://forumautomation.com/t/how-open-channel-flow-can-be-measured/2826)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [December 16, 2017, 12:47pm UTC](https://forumautomation.com/t/how-open-channel-flow-can-be-measured/2826 "2017-12-16T12:47:10Z")
To measure the flow of an open channel we have to make the flow pass through obstructions. The flow is measured from this obstruction like Weirs and Flumes. A special method used to measure the flow is using Current mete… --- ## [Dall tube flow meter](https://forumautomation.com/t/dall-tube-flow-meter/5416)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [December 7, 2018, 9:24am UTC](https://forumautomation.com/t/dall-tube-flow-meter/5416 "2018-12-07T09:24:08Z")
A combination of Venturi tube and orifice plate. This tool is generally used for applications with large flow rates. This is limiting type flowmeter, which causes a slight reduction in flow velocity by construction. Diff… --- ## [Optical flowmeter](https://forumautomation.com/t/optical-flowmeter/3014)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [January 20, 2018, 8:07pm UTC](https://forumautomation.com/t/optical-flowmeter/3014 "2018-01-20T20:07:01Z")
\##Principle: Optical flowmeter uses light reflection to measure the velocity of the flow stream. It measures the time of flight of light to measure the flow of a stream. ##Construction and Working: A dual bea… --- ## [What are the advantages and Disadvantages of Ultrasonic Doppler flow-meter?](https://forumautomation.com/t/what-are-the-advantages-and-disadvantages-of-ultrasonic-doppler-flow-meter/924)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [March 27, 2016, 12:15am UTC](https://forumautomation.com/t/what-are-the-advantages-and-disadvantages-of-ultrasonic-doppler-flow-meter/924 "2016-03-27T00:15:17Z")
Ultrasonic Doppler Measuring Principle - After the doppler procedure,the ultrasonic flow-meter sends out an ultrasonic signal (usually 1 to 5 MHz) in an angle in the measuring tube. Parts of these ultrasonic signal send… --- ## [What is the use of square root in Flow measurement?](https://forumautomation.com/t/what-is-the-use-of-square-root-in-flow-measurement/10945)
**Author:** [@Sudha\_m](https://forumautomation.com/u/Sudha_m)\ **Replies:** 0\ **Last updated:** [March 7, 2023, 12:31pm UTC](https://forumautomation.com/t/what-is-the-use-of-square-root-in-flow-measurement/10945 "2023-03-07T12:31:56Z")
What is square root extractor? The square root extraction is an electronic or pneumatic device which converts square root signal of the flow transmitter (FT) into corresponding linear FS. The system will produce a 4-20mA… --- ## [Basic principle venturi flowmeter](https://forumautomation.com/t/basic-principle-venturi-flowmeter/2770)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [December 4, 2017, 9:00pm UTC](https://forumautomation.com/t/basic-principle-venturi-flowmeter/2770 "2017-12-04T21:00:25Z")
When a flowing fluid or gas passes through a narrow pipe section (neck) the pressure drops. If there is no flow the pressure before and after the neck will be the same. Th faster the fluid flow, the greater the pressure … --- ## [Different types of Gas flow meters](https://forumautomation.com/t/different-types-of-gas-flow-meters/7096)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [September 6, 2019, 1:57pm UTC](https://forumautomation.com/t/different-types-of-gas-flow-meters/7096 "2019-09-06T13:57:03Z")
There are different techniques to use in gas flow measurement. Some of the flow meters can be used to measure both the gaseous and liquid fluids. Here are some flow meters that are used to measure gaseous flow. Thermal … --- ## [Troubleshooting Flowmeter Readings:A Step-by-Step Approach](https://forumautomation.com/t/troubleshooting-flowmeter-readings-a-step-by-step-approach/11579)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 0\ **Last updated:** [November 6, 2023, 5:47am UTC](https://forumautomation.com/t/troubleshooting-flowmeter-readings-a-step-by-step-approach/11579 "2023-11-06T05:47:57Z")
How would you troubleshoot a flowmeter that is not reading correctly? When trying to diagnose a flowmeter that is not reading correctly, it is necessary to use a methodical approach in order to locate and fix the pro… --- ## [Turbine flowmeter Installation](https://forumautomation.com/t/turbine-flowmeter-installation/6393)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [May 15, 2019, 2:40pm UTC](https://forumautomation.com/t/turbine-flowmeter-installation/6393 "2019-05-15T14:40:50Z")
The turbine flowmeter is common flow meter. It is one of the most precise and reproducible flow meters. Turbine meters have a fairly high flow rate, good long-term and short-term repeatability, and are usually linear abo… --- ## [Swirl free Elbow flow conditioner for Flow measurement](https://forumautomation.com/t/swirl-free-elbow-flow-conditioner-for-flow-measurement/2025)
**Author:** [@GOVIND](https://forumautomation.com/u/GOVIND)\ **Replies:** 0\ **Last updated:** [May 30, 2017, 9:16am UTC](https://forumautomation.com/t/swirl-free-elbow-flow-conditioner-for-flow-measurement/2025 "2017-05-30T09:16:26Z")
In most flow meter installations it will be very difficult to ensure that the flow profile is fully developed.More often the flow profile will be distorted by a bend upstream or an area change due to a contraction,expans… --- ## [How to select a Orifice DPT](https://forumautomation.com/t/how-to-select-a-orifice-dpt/4561)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [September 5, 2018, 7:06pm UTC](https://forumautomation.com/t/how-to-select-a-orifice-dpt/4561 "2018-09-05T19:06:05Z")
Selection of orifice flowmeter is depending on the type of fluid and its purity of the process fluid. Generally, the impulse pipes should depart from the process pipe at the same height and should end at the transmitt… --- ## [What are the types of errors in flow measurement?](https://forumautomation.com/t/what-are-the-types-of-errors-in-flow-measurement/2606)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [November 8, 2017, 7:57pm UTC](https://forumautomation.com/t/what-are-the-types-of-errors-in-flow-measurement/2606 "2017-11-08T19:57:06Z")
There are many areas where flow measurement can be inaccurate or invalid.Such common errors are discussed here. Erosion: Erosion causes the material to wear away. Suspended solids or debris in the piping will not onl… --- ## [Which flow meter can reliably measure water flow despite the presence of pelleted material in the water?](https://forumautomation.com/t/which-flow-meter-can-reliably-measure-water-flow-despite-the-presence-of-pelleted-material-in-the-water/12150)
**Author:** [@Sundar\_Iyalunaidu](https://forumautomation.com/u/Sundar_Iyalunaidu)\ **Replies:** 3\ **Last updated:** [December 29, 2025, 10:08am UTC](https://forumautomation.com/t/which-flow-meter-can-reliably-measure-water-flow-despite-the-presence-of-pelleted-material-in-the-water/12150 "2025-12-29T10:08:55Z")
What type of flow meter would measure water flow regardless of pelleted material flowing through the water? Which type of flow meter would accurately measure water flow in a 3" diameter pipeline, despite the presence o… --- ## [Comparison of different from flow measurement technologies](https://forumautomation.com/t/comparison-of-different-from-flow-measurement-technologies/1190)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [July 24, 2016, 5:48am UTC](https://forumautomation.com/t/comparison-of-different-from-flow-measurement-technologies/1190 "2016-07-24T05:48:09Z")
Different from measurement technologies comparison of Liquid and gas flow measurement. Liquid Flow measurement technologies - Different flow measurement technologies are Gear Flow,Turbine flow,Magnetic flow,Coriolis’s,… --- ## [Segmental wedge flowmeter](https://forumautomation.com/t/segmental-wedge-flowmeter/6030)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [March 6, 2019, 6:58pm UTC](https://forumautomation.com/t/segmental-wedge-flowmeter/6030 "2019-03-06T18:58:20Z")
The segmental wedge element is a proprietary device for slurry, corrosion, erosion, viscous or high-temperature applications. It is relatively expensive and is mostly used in hard fluids, where dramatic maintenance sa… --- ## [How to measure flow rate of dry particulates?](https://forumautomation.com/t/how-to-measure-flow-rate-of-dry-particulates/3163)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [February 19, 2018, 6:36pm UTC](https://forumautomation.com/t/how-to-measure-flow-rate-of-dry-particulates/3163 "2018-02-19T18:36:52Z")
Dry particulate flow rate on a conveyer belt can be measured with the use of a load cell by measuring the weight of the particulate flowing. The dry particulates are allowed to pass through a conveyer belt, as the flow … --- ## [What is 10D and 5D in a flow meter?](https://forumautomation.com/t/what-is-10d-and-5d-in-a-flow-meter/13577)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [October 4, 2025, 4:36pm UTC](https://forumautomation.com/t/what-is-10d-and-5d-in-a-flow-meter/13577 "2025-10-04T16:36:18Z")
What is 10D and 5D in a flow meter? --- ## [Process Instrumentation : Flow Measurement Application Advantages and Disadvantages of Turbine Meters . Installation Consideration](https://forumautomation.com/t/process-instrumentation-flow-measurement-application-advantages-and-disadvantages-of-turbine-meters-installation-consideration/231)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [January 11, 2015, 7:14am UTC](https://forumautomation.com/t/process-instrumentation-flow-measurement-application-advantages-and-disadvantages-of-turbine-meters-installation-consideration/231 "2015-01-11T07:14:55Z")
Application of Turbine Meters : Custody transfer and in line blending. Turbine Meters are used where high accuracy and range ability are required.Pulse output from the Turbine Meter may be scaled for direct totalization … --- ## [Why are counters ( totaliser ) used in flow measurement](https://forumautomation.com/t/why-are-counters-totaliser-used-in-flow-measurement/81)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 1\ **Last updated:** [April 16, 2015, 7:37am UTC](https://forumautomation.com/t/why-are-counters-totaliser-used-in-flow-measurement/81 "2015-04-16T07:37:51Z")
Counters are used for measuring the ‘volumetric flow’ of the fluid in a pipeline. --- ## [Why Restriction Orifice is some distance from Blowdown valve?](https://forumautomation.com/t/why-restriction-orifice-is-some-distance-from-blowdown-valve/12043)
**Author:** [@Sundar\_Iyalunaidu](https://forumautomation.com/u/Sundar_Iyalunaidu)\ **Replies:** 1\ **Last updated:** [May 10, 2024, 3:23am UTC](https://forumautomation.com/t/why-restriction-orifice-is-some-distance-from-blowdown-valve/12043 "2024-05-10T03:23:04Z")
Why Restriction Orifice is some distance from Blowdown valve ? --- ## [What are the advantages of Clamp on ultrasonic flow measurement?](https://forumautomation.com/t/what-are-the-advantages-of-clamp-on-ultrasonic-flow-measurement/923)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 1\ **Last updated:** [May 12, 2025, 8:49am UTC](https://forumautomation.com/t/what-are-the-advantages-of-clamp-on-ultrasonic-flow-measurement/923 "2025-05-12T08:49:41Z")
Advantages of Clamp-On Ultrasonic Flow Measurement 1.Low installation effort and costs 2.Measurement is independent of fluid conductivity and pressure 3.No pressure loss,no possibility of leakage 4.Retrospective install… --- ## [What is Conditioning Orifice Plate?](https://forumautomation.com/t/what-is-conditioning-orifice-plate/11813)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [February 23, 2024, 11:34am UTC](https://forumautomation.com/t/what-is-conditioning-orifice-plate/11813 "2024-02-23T11:34:19Z")
What is Conditioning Orifice Plate? --- ## [Equation and definition of Flow compensation for DP type flowmeter](https://forumautomation.com/t/equation-and-definition-of-flow-compensation-for-dp-type-flowmeter/434)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [May 26, 2015, 5:50pm UTC](https://forumautomation.com/t/equation-and-definition-of-flow-compensation-for-dp-type-flowmeter/434 "2015-05-26T17:50:01Z")
The flow calculation from the measured differential pressure over the orifice is compensated for pressure and temperature as shown in calculation below. The flow calculation is compensated for different compositions by a… --- ## [Advantages and Limitations of Magnetic Flow Meters in Water and Wastewater Applications](https://forumautomation.com/t/advantages-and-limitations-of-magnetic-flow-meters-in-water-and-wastewater-applications/11027)
**Author:** [@RafiulShuvo](https://forumautomation.com/u/RafiulShuvo)\ **Replies:** 1\ **Last updated:** [November 27, 2025, 8:30am UTC](https://forumautomation.com/t/advantages-and-limitations-of-magnetic-flow-meters-in-water-and-wastewater-applications/11027 "2025-11-27T08:30:22Z")
In water and wastewater management, accurate and reliable flow measurement is of utmost importance. Without accurate flow measurement, it is impossible to control and optimize processes, leading to inefficient operati… --- ## [Flow measured on a square root scale](https://forumautomation.com/t/flow-measured-on-a-square-root-scale/74)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [October 2, 2014, 6:05pm UTC](https://forumautomation.com/t/flow-measured-on-a-square-root-scale/74 "2014-10-02T18:05:01Z")
Flow is measured on a square root scale only when the measurement is done through an orifice plate and a DP transmitter. The flow measured through the orifice plate is always proportional to the square root of the DP acr… --- ## [What is TORBAR? How does it work?](https://forumautomation.com/t/what-is-torbar-how-does-it-work/9765)
**Author:** [@Ajmal\_ismail](https://forumautomation.com/u/Ajmal_ismail)\ **Replies:** 0\ **Last updated:** [August 18, 2021, 12:12pm UTC](https://forumautomation.com/t/what-is-torbar-how-does-it-work/9765 "2021-08-18T12:12:42Z")
What is TORBAR? The TORBAR is a self-averaging flow meter with multiple ports. Its design is similar to that of a pitot tube, which is used to measure fluid flow. How does TORBAR work? TORBAR generates an average d… --- ## [What is K-factor in Coriolis meter?](https://forumautomation.com/t/what-is-k-factor-in-coriolis-meter/12924)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [January 2, 2025, 10:33am UTC](https://forumautomation.com/t/what-is-k-factor-in-coriolis-meter/12924 "2025-01-02T10:33:15Z")
What is K-factor in Coriolis meter? --- ## [How do you carry out piping for a Different pressure flow transmitter on liquids, Gas and steam services? Why?](https://forumautomation.com/t/how-do-you-carry-out-piping-for-a-different-pressure-flow-transmitter-on-liquids-gas-and-steam-services-why/11189)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 0\ **Last updated:** [May 25, 2023, 6:02am UTC](https://forumautomation.com/t/how-do-you-carry-out-piping-for-a-different-pressure-flow-transmitter-on-liquids-gas-and-steam-services-why/11189 "2023-05-25T06:02:37Z")
When installing a differential pressure (DP) flow transmitter for liquid, gas, or steam services, proper piping design is crucial to ensure accurate and reliable measurements. The design considerations and practices for … --- ## [Inaccurate Flow Measurement in Electromagnetic Flow Meter](https://forumautomation.com/t/inaccurate-flow-measurement-in-electromagnetic-flow-meter/12247)
**Author:** [@automation\_engineer6](https://forumautomation.com/u/automation_engineer6)\ **Replies:** 3\ **Last updated:** [November 27, 2025, 8:33am UTC](https://forumautomation.com/t/inaccurate-flow-measurement-in-electromagnetic-flow-meter/12247 "2025-11-27T08:33:47Z")
Symptoms: The flow meter reading is erratic or significantly deviates from the expected flow rate. The flow meter shows zero flow when there is actual flow in the pipe. The displayed flow rate fluctuates rapidly. --- ## [What is the Purpose of Grounding in the Electromagnetic Flowmeter?](https://forumautomation.com/t/what-is-the-purpose-of-grounding-in-the-electromagnetic-flowmeter/11799)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [November 27, 2025, 8:32am UTC](https://forumautomation.com/t/what-is-the-purpose-of-grounding-in-the-electromagnetic-flowmeter/11799 "2025-11-27T08:32:13Z")
Electromagnetic flowmeter grounding improves to the accuracy, reliability, and safety of these instruments in a number of important ways. In many different sectors, electromagnetic flowmeters are used to measure the … --- ## [What is the K factor of the orifice plate?](https://forumautomation.com/t/what-is-the-k-factor-of-the-orifice-plate/13180)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [June 11, 2025, 10:10am UTC](https://forumautomation.com/t/what-is-the-k-factor-of-the-orifice-plate/13180 "2025-06-11T10:10:42Z")
What is the K factor of the orifice plate? --- ## [Commonly used flow measuring elements and design consideration](https://forumautomation.com/t/commonly-used-flow-measuring-elements-and-design-consideration/418)
**Author:** [@automate](https://forumautomation.com/u/automate)\ **Replies:** 0\ **Last updated:** [May 8, 2015, 10:59pm UTC](https://forumautomation.com/t/commonly-used-flow-measuring-elements-and-design-consideration/418 "2015-05-08T22:59:17Z")
Most commonly used flow measuring elements are Orifice,Flow nozzle and Venturi Orifice Plates Thin plate ,concentric orifice can be used for any steady flow of clean ,homogeneous fluid which is in the normal turbulent … --- ## [How do you calibrate a gas flowmeter?](https://forumautomation.com/t/how-do-you-calibrate-a-gas-flowmeter/12621)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [October 19, 2024, 7:19am UTC](https://forumautomation.com/t/how-do-you-calibrate-a-gas-flowmeter/12621 "2024-10-19T07:19:15Z")
How do you calibrate a gas flowmeter? --- ## [FLOW TRANSMITTERS](https://forumautomation.com/t/flow-transmitters/6315)
**Author:** [@ashlin](https://forumautomation.com/u/ashlin)\ **Replies:** 0\ **Last updated:** [April 29, 2019, 5:54pm UTC](https://forumautomation.com/t/flow-transmitters/6315 "2019-04-29T17:54:30Z")
FLOW TRANSMITTER Flow transmitters will amplify the signals which are coming from a particular sensor and it will then be used properly such as signal processing or as a display. Flow transmit… --- ## [Advantages and disadvantages of a turbine meter Vs an orifice plate flow measurement](https://forumautomation.com/t/advantages-and-disadvantages-of-a-turbine-meter-vs-an-orifice-plate-flow-measurement/80)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [October 2, 2014, 6:15pm UTC](https://forumautomation.com/t/advantages-and-disadvantages-of-a-turbine-meter-vs-an-orifice-plate-flow-measurement/80 "2014-10-02T18:15:32Z")
Turbine meter is a good flow measuring unit when the fluid is low clean fluid. The turbine meter measures the volumetric flow. It is directly installed on the flow line. Its accuracy in flow measurement is high. Accuracy… --- ## [Flow Transmitter Readings mismatch with DCS](https://forumautomation.com/t/flow-transmitter-readings-mismatch-with-dcs/12295)
**Author:** [@automation\_engineer6](https://forumautomation.com/u/automation_engineer6)\ **Replies:** 1\ **Last updated:** [July 24, 2024, 5:52pm UTC](https://forumautomation.com/t/flow-transmitter-readings-mismatch-with-dcs/12295 "2024-07-24T17:52:18Z")
Flow Transmitter Readings mismatch with DCS --- ## [Selection of flowmeter](https://forumautomation.com/t/selection-of-flowmeter/7768)
**Author:** [@gautam.vora](https://forumautomation.com/u/gautam.vora)\ **Replies:** 1\ **Last updated:** [September 2, 2020, 7:14am UTC](https://forumautomation.com/t/selection-of-flowmeter/7768 "2020-09-02T07:14:52Z")
In a differential pressure flow measurement method, how do we decide on the angle of tapping from the connecting flanges. --- ## [An operator tells you that flow indication is more, How would you start checking a DP type flow transmitter?](https://forumautomation.com/t/an-operator-tells-you-that-flow-indication-is-more-how-would-you-start-checking-a-dp-type-flow-transmitter/11318)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 0\ **Last updated:** [July 19, 2023, 4:24am UTC](https://forumautomation.com/t/an-operator-tells-you-that-flow-indication-is-more-how-would-you-start-checking-a-dp-type-flow-transmitter/11318 "2023-07-19T04:24:14Z")
When an operator reports that the flow indication is higher than expected, a systematic approach to checking the issue can help identify the root cause and implement appropriate corrective measures. Here is a step-by-ste… --- ## [Installation of a DP flow transmitter on a gas and liquid pipeline](https://forumautomation.com/t/installation-of-a-dp-flow-transmitter-on-a-gas-and-liquid-pipeline/76)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [October 2, 2014, 6:08pm UTC](https://forumautomation.com/t/installation-of-a-dp-flow-transmitter-on-a-gas-and-liquid-pipeline/76 "2014-10-02T18:08:18Z")
Gas line: the transmitter is installed above the orifice plate to prevent the condensation of gas in the signal line and in the HP & LP chambers. Liquid line: the transmitter is installed below the orifice plate to prev… --- ## [How does a Coriolis flowmeter measure gas flow?](https://forumautomation.com/t/how-does-a-coriolis-flowmeter-measure-gas-flow/12309)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [July 23, 2024, 4:33pm UTC](https://forumautomation.com/t/how-does-a-coriolis-flowmeter-measure-gas-flow/12309 "2024-07-23T16:33:50Z")
How does a Coriolis flowmeter measure gas flow? --- ## [Volumetric and Rate of flow](https://forumautomation.com/t/volumetric-and-rate-of-flow/68)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [October 2, 2014, 5:55pm UTC](https://forumautomation.com/t/volumetric-and-rate-of-flow/68 "2014-10-02T17:55:02Z")
Volumetric Flow: The total amount of fluid passed through a process line. Generally it is measured on counters. The measuring unit is cubic meter, Barrels…etc. Rate of flow: The amount of fluid moving through a process … --- ## [DataGator Flowmeter - Open channel flow meter](https://forumautomation.com/t/datagator-flowmeter-open-channel-flow-meter/6281)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [April 22, 2019, 3:22pm UTC](https://forumautomation.com/t/datagator-flowmeter-open-channel-flow-meter/6281 "2019-04-22T15:22:07Z")
DataGator is an open channel flowmeter, which is used to measure flow through large pipelines and open channels. Flow through such flow channel can be in different schemes, subcritical flow, supercritical flow, and surch… --- ## [Upstream and downstream straight length run is essential for an orifice plate flow measurement](https://forumautomation.com/t/upstream-and-downstream-straight-length-run-is-essential-for-an-orifice-plate-flow-measurement/71)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [October 2, 2014, 6:02pm UTC](https://forumautomation.com/t/upstream-and-downstream-straight-length-run-is-essential-for-an-orifice-plate-flow-measurement/71 "2014-10-02T18:02:51Z")
The upstream can be identified by the orifice plate’s Tag number markings. Tag numbers are always marked on the upstream of the orifice plate. An upstream of 28D and a down steam of minimum 7D is essential for an a --- ## [Meter categories in flow measurement](https://forumautomation.com/t/meter-categories-in-flow-measurement/3791)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [June 6, 2018, 12:36pm UTC](https://forumautomation.com/t/meter-categories-in-flow-measurement/3791 "2018-06-06T12:36:23Z")
The following main categories can be applied to MPFMs (Multiphase Flow Measurement) and are briefly described in the following Sections: Separation type meters o Full two-phase gas/liquid separation o Partial separatio… --- ## [K factor linearity of Turbine meter Flow](https://forumautomation.com/t/k-factor-linearity-of-turbine-meter-flow/445)
**Author:** [@bboudelal](https://forumautomation.com/u/bboudelal)\ **Replies:** 0\ **Last updated:** [June 12, 2015, 3:09pm UTC](https://forumautomation.com/t/k-factor-linearity-of-turbine-meter-flow/445 "2015-06-12T15:09:57Z")
Please gents i have a question about the linearity of Flow meter Turbine. 1-Is there any relation between the new value and the previous value of the K factor? i mean, if there is a difference between them. What is the … --- ## [What are the methods to check vortex flow transmitters flow reading is right?](https://forumautomation.com/t/what-are-the-methods-to-check-vortex-flow-transmitters-flow-reading-is-right/11148)
**Author:** [@Sudha\_m](https://forumautomation.com/u/Sudha_m)\ **Replies:** 1\ **Last updated:** [January 6, 2026, 10:35am UTC](https://forumautomation.com/t/what-are-the-methods-to-check-vortex-flow-transmitters-flow-reading-is-right/11148 "2026-01-06T10:35:28Z")
There are numerous ways to verify the accuracy of a vortex flow transmitter’s flow reading. Listed below are a few popular techniques: Simulate Flow: Using a controlled flow of liquid or gas, you can simulate the flo… --- ## [Emerson High-Pressure Coriolis Flow Meters: Accuracy in Challenging Environments](https://forumautomation.com/t/emerson-high-pressure-coriolis-flow-meters-accuracy-in-challenging-environments/11448)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 0\ **Last updated:** [August 30, 2023, 6:27am UTC](https://forumautomation.com/t/emerson-high-pressure-coriolis-flow-meters-accuracy-in-challenging-environments/11448 "2023-08-30T06:27:15Z")
High-pressure Coriolis flow meters are available from Emerson, a well-known name in process automation and instrumentation, and are made to deliver precise and reliable flow measurements even in the most demanding in… --- ## [Why are seal pots used on flow installations?](https://forumautomation.com/t/why-are-seal-pots-used-on-flow-installations/12061)
**Author:** [@Sundar\_Iyalunaidu](https://forumautomation.com/u/Sundar_Iyalunaidu)\ **Replies:** 1\ **Last updated:** [May 14, 2024, 5:23pm UTC](https://forumautomation.com/t/why-are-seal-pots-used-on-flow-installations/12061 "2024-05-14T17:23:55Z")
Why are seal pots used on flow installations? --- ## [Flow factor and its derivation](https://forumautomation.com/t/flow-factor-and-its-derivation/75)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [October 2, 2014, 6:06pm UTC](https://forumautomation.com/t/flow-factor-and-its-derivation/75 "2014-10-02T18:06:58Z")
A ‘flow factor’ is to multiply the flow transmitter signal measured on a 0-10 square root or 0-100 linear scale to get the flow calculated by flow metering. This is used due to the standardization of the transmitters sig… [Previous page](https://forumautomation.com/c/field-instrumentation/flow-measurement/39.md?per_page=50) [Next page](https://forumautomation.com/c/field-instrumentation/flow-measurement/39.md?page=2&per_page=50)