# Pressure Measurement **URL:** https://forumautomation.com/c/field-instrumentation/pressure-measurement/33.md [Latest](https://forumautomation.com/latest.md) · [Categories](https://forumautomation.com/categories.md) · [Tags](https://forumautomation.com/tags.md) --- ## [Pressure transducer and types of electric pressure transducer](https://forumautomation.com/t/pressure-transducer-and-types-of-electric-pressure-transducer/7127)
**Author:** [@ashlin](https://forumautomation.com/u/ashlin)\ **Replies:** 2\ **Last updated:** [May 12, 2025, 8:54am UTC](https://forumautomation.com/t/pressure-transducer-and-types-of-electric-pressure-transducer/7127 "2025-05-12T08:54:43Z")
What is a Transducer A transducer is a device which can convert a non-electrical physical quantity into an electrical signal, in other words, it can convert the energy of one to another. Energy forms can be mechanical, … --- ## [Types of pressure gauge based on the working principle](https://forumautomation.com/t/types-of-pressure-gauge-based-on-the-working-principle/2709)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 1\ **Last updated:** [April 8, 2018, 5:30pm UTC](https://forumautomation.com/t/types-of-pressure-gauge-based-on-the-working-principle/2709 "2018-04-08T17:30:11Z")
Pressure gauges are devices used to measure pressure, all pressure gauges have their own sensing element, which senses the value of the measured quantity. There are different types of pressure gauge available, common ty… --- ## [Ladder logic programming for Piston movement](https://forumautomation.com/t/ladder-logic-programming-for-piston-movement/5620)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [January 1, 2019, 4:31pm UTC](https://forumautomation.com/t/ladder-logic-programming-for-piston-movement/5620 "2019-01-01T16:31:58Z")
There are two types of piston movements while considering programming, cyclic movement and sequential movement. Cyclic movement of a piston: Consider the task of obtaining the cyclic movement of a piston in a cylinde… --- ## [8 Things You Need to Know When Selecting a Pressure Gauge](https://forumautomation.com/t/8-things-you-need-to-know-when-selecting-a-pressure-gauge/1818)
**Author:** [@Sajid](https://forumautomation.com/u/Sajid)\ **Replies:** 0\ **Last updated:** [March 11, 2017, 6:08am UTC](https://forumautomation.com/t/8-things-you-need-to-know-when-selecting-a-pressure-gauge/1818 "2017-03-11T06:08:56Z")
Mechanical pressure gauges are a reliable source of accurate pressure measurement. While its use and requirements may vary from one industry to another, following are the 8 factors that you need to keep in mind while sel… --- ## [How a current to pressure transmitter (I to P transmitter) works?](https://forumautomation.com/t/how-a-current-to-pressure-transmitter-i-to-p-transmitter-works/7085)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [September 4, 2019, 10:42am UTC](https://forumautomation.com/t/how-a-current-to-pressure-transmitter-i-to-p-transmitter-works/7085 "2019-09-04T10:42:59Z")
What is an I to P converter? An I to P transducer converts an analog electrical signal (4-20mA) to corresponding pneumatic pressure signal (3-15psi). Its aim is to translate a control system’s analog output into a accur… --- ## [How would you select a pressure gauge for a process?](https://forumautomation.com/t/how-would-you-select-a-pressure-gauge-for-a-process/208)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [December 27, 2014, 2:55am UTC](https://forumautomation.com/t/how-would-you-select-a-pressure-gauge-for-a-process/208 "2014-12-27T02:55:54Z")
While selecting a pressure gauge for a process, consider the following points: \_ Characteristic of the process (corrosive or non-corrosive) \_ Operating pressure \_ Maximum process pressure \_ The gauge range should… --- ## [Low pressure measurement gauges](https://forumautomation.com/t/low-pressure-measurement-gauges/3129)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [February 12, 2018, 6:56pm UTC](https://forumautomation.com/t/low-pressure-measurement-gauges/3129 "2018-02-12T18:56:36Z")
Low-pressure measurement: It is impossible to measure very low pressure under atmospheric pressure(\<1.013 bar) with ordinary pressure measuring technique. Special devices have been developed for measurement of pressure… --- ## [The Differential Pressure Flow Measuring Principle (Orifice-Nozzle-Venturi)](https://forumautomation.com/t/the-differential-pressure-flow-measuring-principle-orifice-nozzle-venturi/451)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 1\ **Last updated:** [June 21, 2015, 8:44am UTC](https://forumautomation.com/t/the-differential-pressure-flow-measuring-principle-orifice-nozzle-venturi/451 "2015-06-21T08:44:01Z")
The Differential Pressure Flow Measuring Principle (Orifice-Nozzle-Venturi) The most diverse substances are transported and distributed in piping systems every single day.They can include solvents and chemicals,oil and… --- ## [Piping connection for Differential pressure transmitter (DPT) on liquids, Gas and steam services](https://forumautomation.com/t/piping-connection-for-differential-pressure-transmitter-dpt-on-liquids-gas-and-steam-services/5884)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [February 8, 2019, 2:59pm UTC](https://forumautomation.com/t/piping-connection-for-differential-pressure-transmitter-dpt-on-liquids-gas-and-steam-services/5884 "2019-02-08T14:59:27Z")
The differential pressure transmitter is a device which measures flow, which is used for both liquid, gas and steam flow measurement. The DPT is assembled with several other components in different lines, that are discus… --- ## [What is an Electrical Pressure Transducer?](https://forumautomation.com/t/what-is-an-electrical-pressure-transducer/2567)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [November 4, 2017, 4:33pm UTC](https://forumautomation.com/t/what-is-an-electrical-pressure-transducer/2567 "2017-11-04T16:33:15Z")
Electrical Pressure Transducer Electrical pressure transducers use electrical circuit to convert the motion produced by the mechanical pressure elements into changes in electrical values. These values can then be measur… --- ## [Selection of Pressure transmitter](https://forumautomation.com/t/selection-of-pressure-transmitter/313)
**Author:** [@fadhil](https://forumautomation.com/u/fadhil)\ **Replies:** 1\ **Last updated:** [March 22, 2015, 7:25am UTC](https://forumautomation.com/t/selection-of-pressure-transmitter/313 "2015-03-22T07:25:42Z")
The most important parameters for selection of Pressure transmitter: Decide you wish to select a Gauge or an absolute pressure transmitter Know the max Design and operating pressure ranges so that you can take care of … --- ## [Types of pressure transmitters and working](https://forumautomation.com/t/types-of-pressure-transmitters-and-working/6212)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [April 5, 2019, 5:24pm UTC](https://forumautomation.com/t/types-of-pressure-transmitters-and-working/6212 "2019-04-05T17:24:14Z")
The purpose of the pressure transmitter is to sense and transform a different type of pressure associated with a process into an understandable signal and transmit it over a considerable distance so that it can be used t… --- ## [What is pressure gauge siphon?](https://forumautomation.com/t/what-is-pressure-gauge-siphon/7678)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 5\ **Last updated:** [December 28, 2020, 12:32pm UTC](https://forumautomation.com/t/what-is-pressure-gauge-siphon/7678 "2020-12-28T12:32:31Z")
What is a pressure gauge siphon? Pressure gauge siphons are used to protect the pressure gage from the effect of hot pressure media, such as steam and also, which threaten the effect of rapid pressure surges. The pressur… --- ## [Basics of Reluctive Pressure Transducers?](https://forumautomation.com/t/basics-of-reluctive-pressure-transducers/1614)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [January 2, 2017, 5:32am UTC](https://forumautomation.com/t/basics-of-reluctive-pressure-transducers/1614 "2017-01-02T05:32:13Z")
Reluctive Pressure Transducer A reluctive pressure transducer is a pressure transducer that works by changing the reluctance between two coils.These device measures pressures ranging from less than 10 psi to more than 1… --- ## [Elastic diaphragm gauges](https://forumautomation.com/t/elastic-diaphragm-gauges/5890)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [February 9, 2019, 5:58pm UTC](https://forumautomation.com/t/elastic-diaphragm-gauges/5890 "2019-02-09T17:58:48Z")
Elastic diaphragm gauge is a pressure measurement device, which works under the principle When an elastic transducer (diaphragm) is subjected to a pressure, it deviates. This deviation is proportional to the pressure app… --- ## [What are the different electrical methods of pressure measurement?](https://forumautomation.com/t/what-are-the-different-electrical-methods-of-pressure-measurement/2488)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [October 21, 2017, 3:37pm UTC](https://forumautomation.com/t/what-are-the-different-electrical-methods-of-pressure-measurement/2488 "2017-10-21T15:37:54Z")
Electrical methods for measurement systems are cheaper and accurate compared to old mechanical methods. Electrical transducers can be calibrated and replaced easily. Piezoelectric method: A piezoelectric material is one… --- ## [Function of a hair –spring in a pressure gauge](https://forumautomation.com/t/function-of-a-hair-spring-in-a-pressure-gauge/51)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [October 2, 2014, 5:30pm UTC](https://forumautomation.com/t/function-of-a-hair-spring-in-a-pressure-gauge/51 "2014-10-02T17:30:03Z")
Hair – spring in a pressure gage eliminates the Hysterisis (backlash/angularity) error caused in the quadrant (gear and pinion mechanism) and the weight of the pointer. --- ## [Difference between bonded and Unbonded Strain Gauge](https://forumautomation.com/t/difference-between-bonded-and-unbonded-strain-gauge/4091)
**Author:** [@areejsidhik](https://forumautomation.com/u/areejsidhik)\ **Replies:** 0\ **Last updated:** [July 13, 2018, 5:47am UTC](https://forumautomation.com/t/difference-between-bonded-and-unbonded-strain-gauge/4091 "2018-07-13T05:47:15Z")
We will discuss about the Difference between bonded and Unbonded Strain Gauge in this session before that lets look in to the working principle of strain gauges Principle of Measurement Several types of strain gauges … --- ## [Pressure transmitter selection Checklist](https://forumautomation.com/t/pressure-transmitter-selection-checklist/6271)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [April 19, 2019, 6:47pm UTC](https://forumautomation.com/t/pressure-transmitter-selection-checklist/6271 "2019-04-19T18:47:26Z")
The pressure transmitter can be used wherever there is a chamber or pipeline. It has the function of sensing and converting pressure into a proportional electrical output signal transmitted to a monitoring or control sys… --- ## [Types of Bourdon tubes](https://forumautomation.com/t/types-of-bourdon-tubes/50)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [October 2, 2014, 5:28pm UTC](https://forumautomation.com/t/types-of-bourdon-tubes/50 "2014-10-02T17:28:55Z")
The following are the commonly used Bourdon tubes used in industries: Spiral –Low range 10 –100kpa C type –Medium range 100 – 5000kpa Helical – High range 5000 – 20000kpa --- ## [How to Connect Diaphragm seal for DPT transmitter?](https://forumautomation.com/t/how-to-connect-diaphragm-seal-for-dpt-transmitter/6896)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 1\ **Last updated:** [September 20, 2019, 6:58pm UTC](https://forumautomation.com/t/how-to-connect-diaphragm-seal-for-dpt-transmitter/6896 "2019-09-20T18:58:11Z")
Process connection of DPT with diaphragm seal To determine the liquid level in a tank, the differential pressure is assessed across a tank level. A diaphragm seal is used to directly measure the pressure across the le… --- ## [What are the equipment required for the maintenance,repair and calibration of pressure instruments?](https://forumautomation.com/t/what-are-the-equipment-required-for-the-maintenance-repair-and-calibration-of-pressure-instruments/1615)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [January 2, 2017, 5:52am UTC](https://forumautomation.com/t/what-are-the-equipment-required-for-the-maintenance-repair-and-calibration-of-pressure-instruments/1615 "2017-01-02T05:52:33Z")
Proper equipment is required for the maintenance,troubleshooting,repair and calibration of pressure instruments. 1.Pressure source - Deadweight tester or a portable regulated air supply. 2.A very accurate pressure gaug… --- ## [Manometer basics & Micromanometer](https://forumautomation.com/t/manometer-basics-micromanometer/3035)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [January 26, 2018, 3:18pm UTC](https://forumautomation.com/t/manometer-basics-micromanometer/3035 "2018-01-26T15:18:08Z")
Manometer: A manometer is a continuous pressure measuring instrument. The manometer measures the pressure by balancing against the gravitational force of the liquid head. Pressure applied to a liquid column of the mano… --- ## [DDetermine quality of a packing bag](https://forumautomation.com/t/ddetermine-quality-of-a-packing-bag/9280)
**Author:** [@Vilas](https://forumautomation.com/u/Vilas)\ **Replies:** 1\ **Last updated:** [September 16, 2021, 6:05pm UTC](https://forumautomation.com/t/ddetermine-quality-of-a-packing-bag/9280 "2021-09-16T18:05:06Z")
I have a use case to determine the quality of a packing bag filed with wheat flour. It is made to fall from a height of 2 m and see if the bag breaks, How do I sense the breakage? Thanks and regards --- ## [How does an air pressure regulator works?](https://forumautomation.com/t/how-does-an-air-pressure-regulator-works/4487)
**Author:** [@rajeena](https://forumautomation.com/u/rajeena)\ **Replies:** 0\ **Last updated:** [August 28, 2018, 6:37pm UTC](https://forumautomation.com/t/how-does-an-air-pressure-regulator-works/4487 "2018-08-28T18:37:36Z")
How does an air pressure regulator works? The air pressure regulator is also known as pressure-reducing valves. It maintains a constant output pressure regardless of variations in input pressure or output flow. In pneuma… --- ## [Pneumatic relay](https://forumautomation.com/t/pneumatic-relay/4183)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [July 21, 2018, 5:13pm UTC](https://forumautomation.com/t/pneumatic-relay/4183 "2018-07-21T17:13:12Z")
What is a relay? The relay is automatic switching device which can set ON/OFF large signal lines using comparatively small signals. A pneumatic relay works in 3-15psi pneumatic signal which can control much higher signa… --- ## [How to Select a Differential Pressure Transmitter (DPT)?](https://forumautomation.com/t/how-to-select-a-differential-pressure-transmitter-dpt/6889)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 1\ **Last updated:** [May 12, 2025, 9:00am UTC](https://forumautomation.com/t/how-to-select-a-differential-pressure-transmitter-dpt/6889 "2025-05-12T09:00:23Z")
Selection Criteria for Differential pressure transmitter Differential pressure transmitters with diaphragm seals and capillaries can be used in highly turbulent, dirty, in the presence of foam above the liquid or fou… --- ## [Top #5 of most common errors during leak testing and how to avoid them](https://forumautomation.com/t/top-5-of-most-common-errors-during-leak-testing-and-how-to-avoid-them/12949)
**Author:** [@ForTest](https://forumautomation.com/u/ForTest)\ **Replies:** 0\ **Last updated:** [January 12, 2025, 4:08pm UTC](https://forumautomation.com/t/top-5-of-most-common-errors-during-leak-testing-and-how-to-avoid-them/12949 "2025-01-12T16:08:38Z")
There are several errors that you may encounter during the pressure leak test of your products. We will mention them, illustrating the problems to medium to long term. Below we will mention some of them, illustrating … --- ## [Why glycerin is used in pressure gauge?](https://forumautomation.com/t/why-glycerin-is-used-in-pressure-gauge/4179)
**Author:** [@areejsidhik](https://forumautomation.com/u/areejsidhik)\ **Replies:** 0\ **Last updated:** [July 21, 2018, 11:44am UTC](https://forumautomation.com/t/why-glycerin-is-used-in-pressure-gauge/4179 "2018-07-21T11:44:43Z")
Why glycerin is used in pressure gauge? Glycerin is the most commonly used liquid in liquid-filled gauges. Glycerin-filled gauges are a good value and provide good vibration dampening for applications at room temperature… --- ## [Selection of a pressure switch for 500kpa Hi operation](https://forumautomation.com/t/selection-of-a-pressure-switch-for-500kpa-hi-operation/52)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [October 2, 2014, 5:32pm UTC](https://forumautomation.com/t/selection-of-a-pressure-switch-for-500kpa-hi-operation/52 "2014-10-02T17:32:02Z")
The following points are to be considered wile selecting a pressure switch for any process operation: The process operating pressure The maximum process pressure The process pipeline vibration The maximum working press… --- ## [What are Pressure gauge snubbers? Types of snubbers](https://forumautomation.com/t/what-are-pressure-gauge-snubbers-types-of-snubbers/5594)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [December 28, 2018, 11:47am UTC](https://forumautomation.com/t/what-are-pressure-gauge-snubbers-types-of-snubbers/5594 "2018-12-28T11:47:28Z")
What are pressure gauge snubbers? A pressure snubber is a device used to suppress excessive pressure or rapid movement in mechanical systems. The pressure snubber are designed to dampen the effect of pressure pulses a… --- ## [What is hysteresis in an instrumentation system, and how does it affect accuracy?](https://forumautomation.com/t/what-is-hysteresis-in-an-instrumentation-system-and-how-does-it-affect-accuracy/11056)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 0\ **Last updated:** [April 13, 2023, 5:47am UTC](https://forumautomation.com/t/what-is-hysteresis-in-an-instrumentation-system-and-how-does-it-affect-accuracy/11056 "2023-04-13T05:47:46Z")
Hysteresis is a phenomenon that occurs in an instrumentation system when the output of the system does not immediately respond to a change in input. In other words, the output of the system depends not only on the curren… --- ## [Inverted Bell Pressure Gauges](https://forumautomation.com/t/inverted-bell-pressure-gauges/3380)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [April 5, 2018, 3:30pm UTC](https://forumautomation.com/t/inverted-bell-pressure-gauges/3380 "2018-04-05T15:30:07Z")
The inverted bell type of pressure gauge is confined to applications requiring a sensitive, small-range pressure gage for relatively low pressures and vacuums. The bell pressure gauge is differential pressure meter. Wo… --- ## [Fiber-optic pressure sensors](https://forumautomation.com/t/fiber-optic-pressure-sensors/3149)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [February 15, 2018, 6:23pm UTC](https://forumautomation.com/t/fiber-optic-pressure-sensors/3149 "2018-02-15T18:23:47Z")
Fibre-optic sensors provide an alternative method of measuring displacements in diaphragm and Bourdon tube pressure sensors by optoelectronic means and enable the resulting sensors to have lower mass and size compared wi… --- ## [Diaphragm seal pressure transmitters](https://forumautomation.com/t/diaphragm-seal-pressure-transmitters/3117)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [February 8, 2018, 5:47pm UTC](https://forumautomation.com/t/diaphragm-seal-pressure-transmitters/3117 "2018-02-08T17:47:40Z")
What is Diaphragm seal? Diaphragm seals are also referred to as chemical seals. It is a flexible material that separates the process fluid or material from intering the measuring instrument and also transfer the fluid … --- ## [What is Dead Weight Tester ? How does it work?](https://forumautomation.com/t/what-is-dead-weight-tester-how-does-it-work/9748)
**Author:** [@Ajmal\_ismail](https://forumautomation.com/u/Ajmal_ismail)\ **Replies:** 0\ **Last updated:** [August 14, 2021, 12:33pm UTC](https://forumautomation.com/t/what-is-dead-weight-tester-how-does-it-work/9748 "2021-08-14T12:33:48Z")
What is Dead Weight? A deadweight tester is a device that measures the weight of a force divided by the area applied to calibrate the pressure. For deadweight testers, the formula is equal to the pressure, divided b… --- ## [What is pressure trip valve? Working of pressure trip valve](https://forumautomation.com/t/what-is-pressure-trip-valve-working-of-pressure-trip-valve/6841)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [July 25, 2019, 7:15pm UTC](https://forumautomation.com/t/what-is-pressure-trip-valve-working-of-pressure-trip-valve/6841 "2019-07-25T19:15:13Z")
What is Pressure-sensing trip valves? Pressure-sensing trip valves are for control applications where a specific valve/actuator action is required when supply pressure fails below a specific point. The trip valve al… --- ## [Pressure Switches Basics](https://forumautomation.com/t/pressure-switches-basics/4996)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [October 23, 2018, 6:01pm UTC](https://forumautomation.com/t/pressure-switches-basics/4996 "2018-10-23T18:01:46Z")
What is the pressure switches? A pressure switch is an instrument that automatically senses a change in the measured pressure and opens or closes an electrical switching element when a predetermined pressure is reached. … --- ## [How to measure pressure using McLeod gauge?](https://forumautomation.com/t/how-to-measure-pressure-using-mcleod-gauge/4510)
**Author:** [@rajeena](https://forumautomation.com/u/rajeena)\ **Replies:** 0\ **Last updated:** [August 30, 2018, 5:27pm UTC](https://forumautomation.com/t/how-to-measure-pressure-using-mcleod-gauge/4510 "2018-08-30T17:27:28Z")
How to measure pressure using a McLeod gauge? McLeod gauge is a commonly used device for low-pressure measurements. It is essentially a manometer which uses mercury as the manometric fluid. It can be used for measuring p… --- ## [How does pressure change with every 10 meters of depth underwater?](https://forumautomation.com/t/how-does-pressure-change-with-every-10-meters-of-depth-underwater/12330)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [August 3, 2024, 9:02am UTC](https://forumautomation.com/t/how-does-pressure-change-with-every-10-meters-of-depth-underwater/12330 "2024-08-03T09:02:57Z")
How does pressure change with every 10 meters of depth underwater? --- ## [Differential pressure transmitter](https://forumautomation.com/t/differential-pressure-transmitter/180)
**Author:** [@Beshoy\_Adel](https://forumautomation.com/u/Beshoy_Adel)\ **Replies:** 1\ **Last updated:** [December 6, 2014, 3:16pm UTC](https://forumautomation.com/t/differential-pressure-transmitter/180 "2014-12-06T15:16:40Z")
which differential pressure transmitter is the best Rosemount (emerson) 3051 or fuji FCX A III or Yokogawa EJA110E ?? if Rosemount is the best which is better fuji or Yokogawa?? --- ## [Pneumatic pressure regulators](https://forumautomation.com/t/pneumatic-pressure-regulators/5008)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [October 24, 2018, 3:11pm UTC](https://forumautomation.com/t/pneumatic-pressure-regulators/5008 "2018-10-24T15:11:19Z")
What is the Pneumatic pressure regulator? Air pressure regulator is a device which regulates and filters air for a stable source of air to process control equipment such as a I/P converter and control valve positioner … --- ## [Piloted regulators - Advantages,Disadvantages and Application](https://forumautomation.com/t/piloted-regulators-advantages-disadvantages-and-application/448)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [June 20, 2015, 8:06am UTC](https://forumautomation.com/t/piloted-regulators-advantages-disadvantages-and-application/448 "2015-06-20T08:06:48Z")
Piloted regulators Before reading it would be better to understand about Pressure regulators Set point determined by pilot (a direct acting regulator) that control the flow to or from the diaphragm of a larger valve May… --- ## [Over pressure protection for pressure vessels - ASME UG -125 standard](https://forumautomation.com/t/over-pressure-protection-for-pressure-vessels-asme-ug-125-standard/6570)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [June 18, 2019, 8:24pm UTC](https://forumautomation.com/t/over-pressure-protection-for-pressure-vessels-asme-ug-125-standard/6570 "2019-06-18T20:24:13Z")
Pressure vessel protection standard UG-125: All pressure vessels within the scope of this Division, irrespective of size or pressure, shall be provided with overpressure protection in accordance with the requirements of… --- ## [What are important accessories used for pressure transmitter?](https://forumautomation.com/t/what-are-important-accessories-used-for-pressure-transmitter/6824)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [July 23, 2019, 6:35pm UTC](https://forumautomation.com/t/what-are-important-accessories-used-for-pressure-transmitter/6824 "2019-07-23T18:35:40Z")
For pressure sensing equipment, there are multiple accessories for optimal functioning in difficult process settings. Sometimes unique accessories must be used to safeguard the pressure tool from the risks of certain pro… --- ## [Different types of Pressure regulator](https://forumautomation.com/t/different-types-of-pressure-regulator/449)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [June 20, 2015, 8:28am UTC](https://forumautomation.com/t/different-types-of-pressure-regulator/449 "2015-06-20T08:28:56Z")
Before reading it understand what is pressure regulator? Back pressure regulator Designed to modulate to hold a specific back pressure Monitors and regulate upstream pressure Aka reverse acting regulators Droop = Build… --- ## [Guidelines for vessel selection](https://forumautomation.com/t/guidelines-for-vessel-selection/6587)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [June 21, 2019, 5:12pm UTC](https://forumautomation.com/t/guidelines-for-vessel-selection/6587 "2019-06-21T17:12:04Z")
What is Pressure vessel? Pressure vessel is a container that holds fluid at a pressure above ambient pressure. the function of a vessel in a process unit is to either provide holdup time or to make a separation between … --- ## [Calibration of Pressure Switches](https://forumautomation.com/t/calibration-of-pressure-switches/5483)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [December 14, 2018, 2:52pm UTC](https://forumautomation.com/t/calibration-of-pressure-switches/5483 "2018-12-14T14:52:55Z")
A pressure switch is a form of sensor that closes or opens an electrical contact when a certain pressure is obtained through an increase in pressure or a pressure drop. Before knowing how to calibrate and adjust a pressu… --- ## [What is Digital Pressure Sensor?](https://forumautomation.com/t/what-is-digital-pressure-sensor/872)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 1\ **Last updated:** [November 27, 2025, 8:42am UTC](https://forumautomation.com/t/what-is-digital-pressure-sensor/872 "2025-11-27T08:42:48Z")
Digital Pressure Sensor Generates an electrical signal as a function of the pressure measured. Various technologies - piezoelectric,piezoresistive,strain gauge,capacitive,electromagnetic. Digital Pressure Sensor Type … --- ## [Self actuated pressure regulator characteristics](https://forumautomation.com/t/self-actuated-pressure-regulator-characteristics/6864)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [July 27, 2019, 9:00pm UTC](https://forumautomation.com/t/self-actuated-pressure-regulator-characteristics/6864 "2019-07-27T21:00:35Z")
Self- actuated pressure regulator: The self-actuated regulator is a diaphragm actuator variation and is normally used as the operating medium by the process fluid. Some self-actuated regulators use bellows for the ac… [Next page](https://forumautomation.com/c/field-instrumentation/pressure-measurement/33.md?page=1&per_page=50)