# Pressure Measurement **URL:** https://forumautomation.com/c/field-instrumentation/pressure-measurement/33.md?page=1 [Latest](https://forumautomation.com/latest.md) · [Categories](https://forumautomation.com/categories.md) · [Tags](https://forumautomation.com/tags.md) **Page:** 2 --- ## [What is NDT testing (Non-Destructive testing)? technique?](https://forumautomation.com/t/what-is-ndt-testing-non-destructive-testing-technique/6874)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [July 29, 2019, 6:12pm UTC](https://forumautomation.com/t/what-is-ndt-testing-non-destructive-testing-technique/6874 "2019-07-29T18:12:07Z")
What is NDT techniques? NDT (Non-destructive testing) techniques are in common use to check the integrity of pressure equipment materials and components. The main applications are plate, forgings, castings, and welds. N… --- ## [What are the Different Types of Differential Pressure Gauges?](https://forumautomation.com/t/what-are-the-different-types-of-differential-pressure-gauges/11681)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 0\ **Last updated:** [January 3, 2024, 11:15am UTC](https://forumautomation.com/t/what-are-the-different-types-of-differential-pressure-gauges/11681 "2024-01-03T11:15:18Z")
What are the Different Types of Differential Pressure Gauges? Differential pressure gauges are critical equipment for measuring the pressure differential between two different locations in a fluid or gas system. These d… --- ## [How do I convert PSI to PSIA and PSIG?](https://forumautomation.com/t/how-do-i-convert-psi-to-psia-and-psig/12255)
**Author:** [@automation\_engineer6](https://forumautomation.com/u/automation_engineer6)\ **Replies:** 1\ **Last updated:** [July 10, 2024, 7:53am UTC](https://forumautomation.com/t/how-do-i-convert-psi-to-psia-and-psig/12255 "2024-07-10T07:53:51Z")
How do I convert PSI to PSIA and PSIG? --- ## [What are the advantages of Piezo resistive sensor - Pressure measurement?](https://forumautomation.com/t/what-are-the-advantages-of-piezo-resistive-sensor-pressure-measurement/1005)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [April 23, 2016, 5:34pm UTC](https://forumautomation.com/t/what-are-the-advantages-of-piezo-resistive-sensor-pressure-measurement/1005 "2016-04-23T17:34:34Z")
Piezo resistive sensor Advantages Used for low pressure ranges and absolute and compound pressure ranges. 1.Pressure range - 50 InWC up to 300 psi. 2.Accurate small range pressure measurement 3.Temperature compensation… --- ## [What is Wet and Dry pressure sensors?](https://forumautomation.com/t/what-is-wet-and-dry-pressure-sensors/1350)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [September 14, 2016, 3:18am UTC](https://forumautomation.com/t/what-is-wet-and-dry-pressure-sensors/1350 "2016-09-14T03:18:09Z")
Wet Sensors Wet sensors contains a liquid that responds to the pressure.The manometer is the most common example of this kind of instrument. Dry Sensors Dry sensors use an elastic element that responds to the pressure… --- ## [GAUGE PROTECTORS: Pulsation protection and vibration protection,Temperature protection,Chemical protection](https://forumautomation.com/t/gauge-protectors-pulsation-protection-and-vibration-protection-temperature-protection-chemical-protection/3796)
**Author:** [@AbhimanyuMWarrier](https://forumautomation.com/u/AbhimanyuMWarrier)\ **Replies:** 0\ **Last updated:** [June 6, 2018, 5:02pm UTC](https://forumautomation.com/t/gauge-protectors-pulsation-protection-and-vibration-protection-temperature-protection-chemical-protection/3796 "2018-06-06T17:02:26Z")
GAUGE PROTECTORS Mainly there are three types of gauge protectors: • Pulsation protection and vibration protection. • Temperature protection. • Chemical protection. • PULSATION AND VIBRATION PROTECTION OIL FIL… --- ## [How to carryout a field zero check on a pressure transmitter](https://forumautomation.com/t/how-to-carryout-a-field-zero-check-on-a-pressure-transmitter/55)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [October 2, 2014, 5:37pm UTC](https://forumautomation.com/t/how-to-carryout-a-field-zero-check-on-a-pressure-transmitter/55 "2014-10-02T17:37:15Z")
If the transmitter signal is used for controlling, then put the controller on manual. Connect a digital multimeter in the current range in series with the transmitter output. Isolate the process valve Isolate the instru… --- ## [What is pigtail syphon? What is a pigtail syphon used for?](https://forumautomation.com/t/what-is-pigtail-syphon-what-is-a-pigtail-syphon-used-for/11625)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 0\ **Last updated:** [November 29, 2023, 3:53pm UTC](https://forumautomation.com/t/what-is-pigtail-syphon-what-is-a-pigtail-syphon-used-for/11625 "2023-11-29T15:53:50Z")
Pressure gauges are essential in monitoring and managing processes in industrial environments. When dealing with high-temperature fluids such as steam or superheated vapour, however, the sensitive components of pressure … --- ## [Contact selection on high and low pressure alarm switches](https://forumautomation.com/t/contact-selection-on-high-and-low-pressure-alarm-switches/53)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [October 2, 2014, 5:34pm UTC](https://forumautomation.com/t/contact-selection-on-high-and-low-pressure-alarm-switches/53 "2014-10-02T17:34:15Z")
On a high pressure switch, the wiring is terminated on the “common” and the “normally close” contact terminals. On a low pressure switch, the wiring is terminated on the “common” and the “normally open” contact terminal… --- ## [How to select primary element Differential Pressure flow measurement?](https://forumautomation.com/t/how-to-select-primary-element-differential-pressure-flow-measurement/837)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [March 8, 2016, 5:06am UTC](https://forumautomation.com/t/how-to-select-primary-element-differential-pressure-flow-measurement/837 "2016-03-08T05:06:19Z")
Advantages and Limitations of different types primary element (Differential Pressure Flow Measurement) Square Edge Concentric Orifice Plate Recommended Service - Clean Liquid,Gases,Steam Advantages - Easy to install L… --- ## [Various communication options available on Honeywell pressure transmitters](https://forumautomation.com/t/various-communication-options-available-on-honeywell-pressure-transmitters/360)
**Author:** [@instrumen](https://forumautomation.com/u/instrumen)\ **Replies:** 0\ **Last updated:** [March 25, 2015, 6:06pm UTC](https://forumautomation.com/t/various-communication-options-available-on-honeywell-pressure-transmitters/360 "2015-03-25T18:06:07Z")
This is written to explain the various communication options available on Honeywell pressure transmitters. all ST3000 pressure transmitters must specify the communication protocol. The current selections are: H6: HART 6… --- ## [What is the difference between gauge and absolute pressure transmitter?](https://forumautomation.com/t/what-is-the-difference-between-gauge-and-absolute-pressure-transmitter/11596)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 0\ **Last updated:** [November 16, 2023, 5:39pm UTC](https://forumautomation.com/t/what-is-the-difference-between-gauge-and-absolute-pressure-transmitter/11596 "2023-11-16T17:39:38Z")
Navigate the intricate world of pressure measurement with a comprehensive understanding of gauge and absolute pressure transmitters. This guide delves into the fundamental differences between these two types of trans… --- ## [What are the conditions affecting liquid pressure?](https://forumautomation.com/t/what-are-the-conditions-affecting-liquid-pressure/1660)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [January 15, 2017, 5:07am UTC](https://forumautomation.com/t/what-are-the-conditions-affecting-liquid-pressure/1660 "2017-01-15T05:07:48Z")
If the liquid in a tank remains at rest,the pressure at any location beneath the surface depends on only three conditions. 1.Surface pressure - Any pressure acting on the surface is transmitted throughout the liquid and… --- ## [What are the key factors to consider when selecting a pressure sensor manufacturer for a specific application?](https://forumautomation.com/t/what-are-the-key-factors-to-consider-when-selecting-a-pressure-sensor-manufacturer-for-a-specific-application/11922)
**Author:** [@Sundar\_Iyalunaidu](https://forumautomation.com/u/Sundar_Iyalunaidu)\ **Replies:** 1\ **Last updated:** [April 1, 2024, 2:46am UTC](https://forumautomation.com/t/what-are-the-key-factors-to-consider-when-selecting-a-pressure-sensor-manufacturer-for-a-specific-application/11922 "2024-04-01T02:46:37Z")
What are the key factors to consider when selecting a pressure sensor manufacturer for a specific application? --- ## [Pressure detection circuit and function of pressure detector?](https://forumautomation.com/t/pressure-detection-circuit-and-function-of-pressure-detector/7148)
**Author:** [@sivaranjith](https://forumautomation.com/u/sivaranjith)\ **Replies:** 0\ **Last updated:** [September 18, 2019, 6:38pm UTC](https://forumautomation.com/t/pressure-detection-circuit-and-function-of-pressure-detector/7148 "2019-09-18T18:38:07Z")
Pressure detection circuit: The sensing element senses the monitoring system’s pressure and transforms the pressure into a mechanical signal. The transducer transforms the mechanical signal into an electrical signal… --- ## [Pressure gauge accuracy class and normal accuracy](https://forumautomation.com/t/pressure-gauge-accuracy-class-and-normal-accuracy/159)
**Author:** [@instrulover](https://forumautomation.com/u/instrulover)\ **Replies:** 0\ **Last updated:** [November 28, 2014, 2:44am UTC](https://forumautomation.com/t/pressure-gauge-accuracy-class-and-normal-accuracy/159 "2014-11-28T02:44:52Z")
Is there a difference between this two terms on pressure gauge specifications on accuracy? --- ## [Can you provide some examples of liquids that are used in U-tube manometers?](https://forumautomation.com/t/can-you-provide-some-examples-of-liquids-that-are-used-in-u-tube-manometers/12538)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [September 9, 2024, 2:21pm UTC](https://forumautomation.com/t/can-you-provide-some-examples-of-liquids-that-are-used-in-u-tube-manometers/12538 "2024-09-09T14:21:18Z")
Can you provide some examples of liquids that are used in U-tube manometers? --- ## [What are the advantages of Thin film Sensor - Pressure measurement](https://forumautomation.com/t/what-are-the-advantages-of-thin-film-sensor-pressure-measurement/1004)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [April 23, 2016, 5:30pm UTC](https://forumautomation.com/t/what-are-the-advantages-of-thin-film-sensor-pressure-measurement/1004 "2016-04-23T17:30:51Z")
Thin Film Sensor Advantages - Pressure Measurement 1.Pressure Range - 100 psi to 20000 psi 2.High burst pressure 3.Zero point stability 4.High accuracy 5.Integrated temperature compensation 6.High Resistance against sho… --- ## [What are the advantages of Thick film sensor pressure measurement?](https://forumautomation.com/t/what-are-the-advantages-of-thick-film-sensor-pressure-measurement/1006)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [April 23, 2016, 5:36pm UTC](https://forumautomation.com/t/what-are-the-advantages-of-thick-film-sensor-pressure-measurement/1006 "2016-04-23T17:36:41Z")
Thick film sensor Pressure measurement Advantages 1.Pressure range 30 psi to 1500 psi 2.Inexpensive 3.Integrated temperature compensation 4.Require O-ring to seal process connection --- ## [What is a pressure calibrator? What is the purpose of a calibrator?](https://forumautomation.com/t/what-is-a-pressure-calibrator-what-is-the-purpose-of-a-calibrator/11624)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 0\ **Last updated:** [November 29, 2023, 2:49pm UTC](https://forumautomation.com/t/what-is-a-pressure-calibrator-what-is-the-purpose-of-a-calibrator/11624 "2023-11-29T14:49:08Z")
Pressure sensors are used in many different kinds of industries to measure pressure applied to surfaces. Accurate measurements are critical, and this is where pressure calibrators come in handy. Pressure calibrators, … --- ## [Factors affecting Pressure measurement accuracy](https://forumautomation.com/t/factors-affecting-pressure-measurement-accuracy/10807)
**Author:** [@denizen](https://forumautomation.com/u/denizen)\ **Replies:** 0\ **Last updated:** [December 23, 2022, 3:21pm UTC](https://forumautomation.com/t/factors-affecting-pressure-measurement-accuracy/10807 "2022-12-23T15:21:08Z")
There are several factors that can affect the accuracy of pressure measurement, including: Calibration: Ensuring that the pressure measuring instrument is properly calibrated is crucial for accurate measurement. Any … --- ## [What is a Dead Weight Tester used for?](https://forumautomation.com/t/what-is-a-dead-weight-tester-used-for/12045)
**Author:** [@Sundar\_Iyalunaidu](https://forumautomation.com/u/Sundar_Iyalunaidu)\ **Replies:** 1\ **Last updated:** [May 10, 2024, 2:20pm UTC](https://forumautomation.com/t/what-is-a-dead-weight-tester-used-for/12045 "2024-05-10T14:20:12Z")
What is a Dead Weight Tester used for? --- ## [What are the signs of a faulty pressure gauge?](https://forumautomation.com/t/what-are-the-signs-of-a-faulty-pressure-gauge/12685)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [October 15, 2024, 12:21pm UTC](https://forumautomation.com/t/what-are-the-signs-of-a-faulty-pressure-gauge/12685 "2024-10-15T12:21:25Z")
What are the signs of a faulty pressure gauge? --- ## [What are the common applications of vacuum gauges?](https://forumautomation.com/t/what-are-the-common-applications-of-vacuum-gauges/12287)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [July 19, 2024, 5:53pm UTC](https://forumautomation.com/t/what-are-the-common-applications-of-vacuum-gauges/12287 "2024-07-19T17:53:49Z")
What are the common applications of vacuum gauges? --- ## [Why is it not possible to measure absolute vacuum or absolute pressures using barometers, which are based on atmospheric pressures?](https://forumautomation.com/t/why-is-it-not-possible-to-measure-absolute-vacuum-or-absolute-pressures-using-barometers-which-are-based-on-atmospheric-pressures/12328)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [August 3, 2024, 8:47am UTC](https://forumautomation.com/t/why-is-it-not-possible-to-measure-absolute-vacuum-or-absolute-pressures-using-barometers-which-are-based-on-atmospheric-pressures/12328 "2024-08-03T08:47:05Z")
Why is it not possible to measure absolute vacuum or absolute pressures using barometers, which are based on atmospheric pressures? --- ## [DP Transmitter Sudden Zero Reading - What’s the Cause?](https://forumautomation.com/t/dp-transmitter-sudden-zero-reading-what-s-the-cause/13725)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [November 22, 2025, 2:42pm UTC](https://forumautomation.com/t/dp-transmitter-sudden-zero-reading-what-s-the-cause/13725 "2025-11-22T14:42:08Z")
DP Transmitter Sudden Zero Reading - What’s the Cause? The differential pressure transmitter on the separator suddenly falls to registering almost zero, even though the process level remains steady. The impulse lines ar… --- ## [What is the difference between absolute and gauge pressures when measuring gas or fluid pressures in a container such as a tank or open pipe?](https://forumautomation.com/t/what-is-the-difference-between-absolute-and-gauge-pressures-when-measuring-gas-or-fluid-pressures-in-a-container-such-as-a-tank-or-open-pipe/12845)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 0\ **Last updated:** [November 21, 2024, 3:25pm UTC](https://forumautomation.com/t/what-is-the-difference-between-absolute-and-gauge-pressures-when-measuring-gas-or-fluid-pressures-in-a-container-such-as-a-tank-or-open-pipe/12845 "2024-11-21T15:25:35Z")
What is the difference between absolute and gauge pressures when measuring gas or fluid pressures in a container such as a tank or open pipe? --- ## [Pressure Transmitter Signal Fluctuating Randomly](https://forumautomation.com/t/pressure-transmitter-signal-fluctuating-randomly/14206)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [June 27, 2026, 5:04am UTC](https://forumautomation.com/t/pressure-transmitter-signal-fluctuating-randomly/14206 "2026-06-27T05:04:49Z")
Pressure Transmitter Signal Fluctuating Randomly I’m dealing with an intermittent issue on a pressure transmitter. The process pressure is stable, but the transmitter output randomly fluctuates for a few seconds befo… --- ## [What are the basic types of pressure transmitters?](https://forumautomation.com/t/what-are-the-basic-types-of-pressure-transmitters/13667)
**Author:** [@ARTang](https://forumautomation.com/u/ARTang)\ **Replies:** 0\ **Last updated:** [October 31, 2025, 6:03am UTC](https://forumautomation.com/t/what-are-the-basic-types-of-pressure-transmitters/13667 "2025-10-31T06:03:18Z")
Classification by use environment General industrial pressure transmitter Features: It can withstand a certain degree of temperature changes, humidity, dust and mechanical vibration, with a protection level between IP6… --- ## [Smart Pressure Sensor: Types and Applications](https://forumautomation.com/t/smart-pressure-sensor-types-and-applications/13734)
**Author:** [@ARTang](https://forumautomation.com/u/ARTang)\ **Replies:** 0\ **Last updated:** [November 27, 2025, 7:22am UTC](https://forumautomation.com/t/smart-pressure-sensor-types-and-applications/13734 "2025-11-27T07:22:08Z")
A smart pressure sensor is a device that detects pressure signals and converts them into usable electrical output signals according to a defined pattern. A smart pressure sensor typically consists of a pressure-sensitive… --- ## [Hydraulic System Pressure Switch Shows Incorrect Pressure Signal During Operation](https://forumautomation.com/t/hydraulic-system-pressure-switch-shows-incorrect-pressure-signal-during-operation/14331)
**Author:** [@Instrument\_Engineer](https://forumautomation.com/u/Instrument_Engineer)\ **Replies:** 1\ **Last updated:** [August 21, 2026, 1:41pm UTC](https://forumautomation.com/t/hydraulic-system-pressure-switch-shows-incorrect-pressure-signal-during-operation/14331 "2026-08-21T13:41:52Z")
Hydraulic System Pressure Switch Shows Incorrect Pressure Signal During Operation A pressure switch on the hydraulic system will sound an alarm and turn the hydraulic pump off if pressure falls below the setpoint. Un… [Previous page](https://forumautomation.com/c/field-instrumentation/pressure-measurement/33.md?per_page=50)