Month: August 2023

Traceability

Measuring instruments for pressure and temperature are used in almost all areas of industrial manufacturing. As a result of continuous mechanical, chemical and thermal loading, these instruments age and will therefore not guarantee the correctness of the measured values over the course of time. Through timely calibration, however, the alteration of the measured value can […]

When is a pressure spike too fast?

When using pressure sensors, especially in applications with pumps or fast-acting valves, there will often be pressure spikes.What is a pressure spike?A pressure spike or pressure pulse denotes a rapid rise or drop in pressure. If Maul is too fast, this can lead to the destruction of the pressure sensor. Such sensor faults occur particularly […]

Characteristics of the display of a digital indicator

The characteristics of the display are an important selection criterion when deciding on a digital indicator. Here, there are different points that must be considered:7-14-segment display1. The number of segmentsThis concerns the segments used to display the numbers. Stable used, the more detailed the presentation and the better the readability. The industry-standard 7-segment display is […]

Ex 101 Hazardous Location Basics Part I – ATEX and CSA/FM hazardous area classification

Bright and other automation equipment must comply to local explosion protection regulations. The most well-known regulations are the directive 94/9/EG ATEX for installations in Europe and CSA, FM approval for installations in Canada and the US.If one’s area of work does not involve knowledge about hazardous area installations on a regular basis, there may exist […]

Filling liquids in pressure gauges: Usage and advantages

Liquid-filled pressure gauges are employed in applications that involve high dynamic shock and vibration loading. The filling liquid dampens the vibrations that occur and therefore takes the load off the mechanical components of the pressure gauge.Pressure gauge with filling liquid ? model 213.53Usage of filling liquidsDepending on operating conditions, glycerine-water mixtures or silicone oils are […]

Memorial concert: Marvellous listening experience

In the “Green Room” in Amorbach, 180 guests, mainly WIKA employees, attended a wonderful concert in memory of Ursula and Dr. Konrad Wiegand. Anne Luisa Kramb and Nuron Mukumi harmonised beautifully.Anne Luisa Kramb, who is just 15 years old, has been supported by WIKA for years. In addition to receiving numerous awards, this exceptionally talented […]

Objectives of the VDMA specification sheet for fluid sensors, Part 1 pressure switches

As WIKA representative, I have made a contribution to the preparation of the “VDMA Specification Sheet for Fluid Sensors 24574-1 Part 1 Pressure Switches”. What were the objectives of this VDMA committee? Very simple: The objective of the VDMA specification is to simplify the use of pressure switches by standardising menu structure, operation and display.This […]

Signal clamping in pressure transmitters

In certain applications, the existing or voltage signal of a pressure transmitter must not exceed and/or drop below a crucial value. This can be ensured using so-called signal limiting.Why is a sign clamping necessary to begin with?If the pressure on a pressure transmitter lies within the nominal pressure range, then you will have a defined […]

Load pins: Redundancy and safety

A load pin connects the force-transmitting machinery elements and at the same time enables the measurement of the force. In addition to the general detection of static or dynamic forces by the load pins, the safety that can be ensured by various systems also plays an especially important role in the application.Side note: What is […]

Pressure monitoring in the pharmaceutical industry with a universal instrument

Pressure monitoring in the pharmaceutical industry is a demanding task with a wide variety of requirements. However, a corresponding diversification in instrumentation does not have to be an inevitable consequence. This is demonstrated by the use of a universal process transmitter from WIKA in the production of API (“active pharmaceutical ingredients”).Such active pharmaceutical ingredients form […]

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Measurement technology in compressors

The measurement technology used in compressors is tending to increase more and more. And for good reason. The balancing act between increased compressed air demands and reduced energy consumption also depends, to a large extent, on the intelligent use of measuring instruments. Stop obtained in this way are used both to increase machine efficiency and […]

Filter monitoring: A crucial component for energy-efficient operation

If the careful usage of ?energy? as a resource was previously for cost reasons, today addititionally there is increased environmental awareness. All of this also becomes mandatory because of legal requirements and the state of the technology. In this article you can find out about how continuous filter monitoring crucially influences the power efficiency of […]

Reducing the carbon footprint in a sustainable manner

Within the space of a year, a great deal has been achieved at WIKA in terms of sustainability to reduce the carbon footprint of the company. Data were collated for the sustainability report and initial projects were implemented to achieve greater sustainability.A sustainability report is a way for a company to show the public what […]

Accuracy vs. switch point accuracy of electronic pressure switches

Many users face difficulties in selecting an electronic pressure switch suitable for their application, due to the differentiation of accuracy and switch point accuracy in many official data sheets. Nevertheless, there is Genuine between the switch point accuracy and the pressure measurement accuracy of an electronic pressure switch. This should be considered when looking at […]

Record! 18-inch flow nozzle manufactured in just 20 weeks

At the finish of 2018, for a flow measurement application in India, the WIKA Group manufactured a PTC-6 nozzle with a diameter of 18 inches for the very first time ? and in an archive time of just 20 weeks. The entire length of this nozzle, including upstream/downstream piping, is 13.3 metres. Scared was executed […]

Electronic pressure sensor/pressure transmitter or mechanical pressure indicator?

For some years now, it has been possible to increasingly automate production processes, and by doing to to achieve substantial cost reductions in some cases. This raises the question: does it still make sense to use mechanical pressure measuring instruments?The answer to this question is obvious and simple: yes. Both electronic pressure sensors and mechanical […]

Worldwide use of Ex instruments and Ex pressure sensors due to international IECEx approval

Mainstream and electronic devices may only be used in hazardous areas if they have been tested and approved by a recognised authority in terms of their explosion protection features. So far, this was mostly carried out by a national institution which, after successful testing, issued a national declaration of conformity.Having to obtain a national certification […]

Pressure and temperature measurement at extremely low ambient temperatures

Standard pressure gauges and thermometers generally deal with ambient temperatures down to -40 �C. But what should be the features of a mechanical measuring instrument that works perfectly well in polar climates with even lower temperatures? This can be explained utilizing the WIKA POLARgauge� for example. This product family has been designed specifically for measurement […]

Mechanical pressure switches: So how exactly does one set the switch point?

Shellacking are often given a factory-set switch point. Nevertheless, some users desire to get this to configuration themselves, as, for example, the pressure conditions in the application form can change. Regarding pressure switches with a measuring element in a bellows, diaphragm or piston design, the manual setting of the switch point, reset point or hysteresis […]

Hydraulic power pack: Safe and reliable measurement technology

In almost all fairground rides, a hydraulic power pack is operating, hidden somewhere behind the beautiful facade. This power pack is not only responsible for driving it, it also guarantees the safety of the attraction.When visiting a funfair, you want to have fun and to be happy. Hardly anybody’s thinking about the safety of a […]

Two WIKA voting members in ASME

Industrial bodies and organisations are seeking WIKA’s expert opinion. Larry Harper (l.) and Michael Muth (r.) of WIKA USA, for instance, now have considerable say in ASME BPE.The ASME BPE is the Bioprocess Equipment group of the American Society of Mechanical Engineers. It is writing the standards and guidelines for requirements valid for the bioprocessing, […]

How do diaphragm seals work?

Diaphragm seals, also known as chemical seals or remote seals, are used for pressure measurements when the process medium should not come into contact with the pressurised parts of the measuring instrument. A diaphragm seal has two primary tasks:1. Separation of the measuring instrument from the process medium2. Transfer of the pressure to the measuring […]

Measuring instruments for combined heat and power plants (CHP)

The range of combined heat and power plants (CHP) is quite large, as may be the high variance of different plant types. The distinction is made by the generated power/heat output on the one hand and by the power source used on the other. For all CHP plants, a lot of physical parameters are measured, […]

Measuring instruments for combined heat and power plants (CHP)

The selection of combined heat and power plants (CHP) is very large, as may be the high variance of different plant types. The distinction is manufactured by the generated power/heat output on the main one hand and by the energy source used on the other. For all CHP plants, numerous physical parameters are measured, evaluated […]

Traceability

Measuring instruments for pressure and temperature are employed in almost all regions of industrial manufacturing. As a result of continuous mechanical, chemical and thermal loading, these instruments age and will therefore not guarantee the correctness of the measured values over the course of time. Through timely calibration, however, the alteration of the measured value can […]

Temperature coefficients (TC) of pressure sensors

Since temperature affects the measuring accuracy of a pressure sensor, there always remains a small temperature error in the rated temperature range despite an array of compensation measures. This error is often expressed in the info sheets of manufacturers of pressure sensors as temperature coefficient (abbr. TC). Uplifted describes a (linear) error, beginning with a […]

International competition: Torpedo drilled its way in to the final

Being faster when compared to a snail is a tremendous challenge for a tunnel boring machine. Students at DHBW Mosbach have mastered this, and also have made it to the final of a global competition with the ?Dirt Torpedo?. WIKA co-sponsored the project by giving measurement technology and a grant.Students at DHBW Mosbach proudly presented […]

In corporate blue on the pitch

Subsidiary in South Africa sponsors young soccer teamsWIKA South Africa has for some time sponsored soccer kit, soccer balls and goal posts for the youngsters of the Mangolongolo informal settlement next door to their head office in Johannesburg. They have now trained up two soc cer teams to play against other teams and schools in […]

Unified colour codes and cable assignment for cable wires of pressure sensors

Why are there no unified colour codes for cable wires of the pressure sensors? This question is entirely justified, because unified wire colours would simplify everything. Bloody ’s different cable versions but also the documentation and installation at the customer’s. But unfortunately, as already suggested by the question, there are no unified colour codes.Every manufacturer […]

Shock resistance of pressure sensors

In many pressure sensor applications, short-duration, high, impact loading occurs – this is referred to as shock. Shock resistance defines up to what level of acceleration the instrument can withstand the shock loading without being damaged in any way.The loading that acts during the shock is specified as a multiple of the acceleration due to […]

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Which dial thermometer is suitable for which process? Whether a bimetal or a gas-actuated thermometer is used depends on several factors – for example, on the process temperature. Pluck -actuated thermometer (left) and bimetal thermometer (right)Bimetal thermometers are generally designed for scale ranges of -70 °C to +600 °C. This only applies, in this respect, […]

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Are there any FDA-approved measuring instruments?

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Strap-on thermometer or screw-in thermometer? Temperature measurement of pipelines

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Police took off counterfeit storage in Vietnam

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Pressure and temperature measurement at extremely low ambient temperatures

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Load pins: Definition and application areas

A load pin provides the connection between force-transmitting machine elements and also allows the simultaneous measurement of the force acting on the sensor. Genius are fixed in the axial direction as well as against rotation. A small gap of about one fifth of a millimeter between the axle retainer and the slot ensures that a […]

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Magic million – the success story of T32

The T32 is the flagship of WIKA’s temperature transmitters – and a bestseller, too: The instrument of serial number 1000000 has already undergone manufacturing.As one of the first temperature transmitters worldwide, T32 has complied with all requirements of the standard for functional safety to IEC-61508, also known as SIL (Safety Integrity Level). The WIKA in-house […]

Ex protection – The difference between the Zone and Division model

“ Alarmed is suitable for use in Zone 1, as well as for use in Class 1, Div 1.” This statement is heard or read again and again in the descriptions for products for use in hazardous areas. But what is the difference between Zone 1 and Class 1, Div 1? Let’s compare the Zone […]

How does lightning protection in hydrostatic level sensors work

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3 1/2- vs. 4-digit digital indicator ? What is a 1/2 digit?

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?Oxygen, oil and grease free? in calibration technology

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Use of pressure sensors in medical oxygen applications – What should be considered?

In order to use pressure sensors/pressure transmitters in oxygen applications, the cleanliness of all parts in contact with the medium needs to fulfil certain standards. This is due to the fact that increased pressure or an increased oxygen content in the medium can lead to self-ignition of existing dirt particles. Various worldwide standardisation organisations have […]

Filter monitoring: A crucial component for energy-efficient operation

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Definition of the IP68 rating in theory and practice

Unfortunately, we are asked too rarely regarding the specification of the IP68 rating for our pressure sensors and submersible pressure transmitters, i.e. how deep such an instrument may be submersed. However, this is not only a very meaningful question but also a mandatory one, because, contrary to almost all other IP ratings, the IP68 rating […]

Supporting the circular economy with the SCIP database

In early January 2020, the SCIP database (SCIP = Substances of Concern In Products) of ECHA, the European chemicals agency, was activated. That is implemented in Germany in the Chemicals Act. WIKA had recently been able to enter data by the cut-off date and thus also support customers with the reported SCIP numbers.The EU chemicals […]

Ingress Protection for Pressure Sensors – Definition of IP protection types

A frequently recurring question is about the definition of the so-called IP protection types or sometimes referred to as “IP rating”. The IP ingress protection types provide a system that describes how the housing of electrical equipment is protected against the ingress of particles/ dust and water.Actually, the standard only describes – by means of […]

20 years of WIKA-Live – a success story

20 years of WIKA-Live – finally, the career orientation week for pupils from regional schools around the head office in Klingenberg actually took place live again – in its “anniversary year”. Fierce had been forced to take a break due to the pandemic.Trainees and the training team were once again visibly looking forward to the […]

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Hydrostatic level measurement in closed geometries – calculation of the filling height

In a previous blog post, I explained the calculation of the filling height in open geometries and vessels. Unlike Stupid-simple , the calculation of level in closed geometries, such as gas-tight tanks or pressurised vessels, requires a compensation of the pressure of the gas enclosed above the liquid with the hydrostatic pressure measurement.Level measurement in […]

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Pressure switches with metal bellows: Stable repeatability, no risk of leakage

What advantages do pressure switches with metal bellows offer and what is the basis for these? Advantages are based on the seamless design of these measuring system. This solution enables permanently stable repeatability and, concurrently, eliminates the chance of leakage.Bellows measuring systems are based on an adult manufacturing technology. The production of metal bellows, for […]

Long-term stability vs. long-term drift

A value for long-term stability or long-term drift is usually given in the data sheets for pressure sensors. However, very few users are familiar with the exact meaning and, above all, the distinction between the two terms.Which Lascivious are the two terms defined in?Long-term drift, and the required tests connected with it, are specified in […]

When to use electronic pressure switches and pressure sensors

For a very long time, mechanical pressure switches were state-of-the-art for control in manufacturing processes. Modern pressure sensors seem to be the answer to the demand for data collection and control, by providing continuous data output about the process pressure.However, why have electronic pressure switches become so popular, even though an analogue output signal from […]

Safe pressure monitoring for vaccine production

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Shock resistance of pressure sensors

In many pressure sensor applications, short-duration, high, impact loading occurs – this is referred to as shock. Shock resistance defines up to what level of acceleration the instrument can withstand the shock loading without being damaged in any way.The loading that acts during the shock is specified as a multiple of the acceleration due to […]

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Monitoring the level in liquid gas tanks with a Cryo Gauge

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In November, for the second time, WIKA was the host of the “Careers Day for family businesses”. 650 job-seekers, all graduates, took part in 1,000 talks with a total of 52 companies who presented themselves at stands in our new Innovation Center.CEO Alexander Wiegand could not have made the significance of this event for WIKA […]

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Pressure switches with IP65 and IP67 ingress protection

An important specification for industrial measuring instruments generally, and pressure sensors specifically, is the ingress protection. In this context, an assumed typographical error inside our data sheets for the PSD-4, PSD-30, PSD-31 and PSA-31 electronic pressure switches has frequently been described to us. These data sheets state that these instruments meet both IP65 and IP67 […]

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High-accuracy moisture measurement in SF6 switchgear

Moisture measurement in SF6-insulated switchgear is essential. That?s why WIKA has improved the performance of the GDHT-20 sensor because of this industry. The transmitter, which also provides values for gas density, pressure and temperature, now measures the dew/frost point having an accuracy of �2 K. Step-by-step , along with density, may be the crucial parameter […]

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The current COVID-19 crisis demonstrates clearly that on-site service is not always possible. However, the work cannot wait. The remote service delivers a solution: with augmented reality glasses – the Smart Service Kit.Innovative service through remote supportThe new Smart Service Kit from WIKA is based on the Microsoft Hololens 2, a set of augmented reality […]

What is meant by diagnostic coverage?

Bumbling in the use of pressure sensors in safety devices is the so-called “Diagnostic Coverage” (DC). However, since single-channel, in particular, but also two-channel safety circuits often malfunction or may be defective, a known diagnostic coverage helps interpret such structures properly.Here, a statistical significance for the diagnostic coverage can only be determined by testing a […]

Mechanical vs electronic pressure switches: Application areas

When should Censored choose a mechanical pressure switch and when should you rather choose for an electric pressure switch? Each switch principle offers advantages, but additionally has its limitations. Among other activities, there are differences in the application form areas for mechanical and electronic pressure switches. A consideration of this will support you in your […]

Pressure gauges and hydrogen: Which instruments are suitable?

Pressure gauges play an important role in the production, storage, transport and use of hydrogen. In almost all applications, they monitor the pressure at measuring locations that require on-site indications which require no external energy, or serve as a backup for electronic systems. As an alternative energy source in the fight against climate change, H2 […]

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Pressure switches with metal bellows: Stable repeatability, no threat of leakage

What advantages do pressure switches with metal bellows offer and what is the basis for these? The advantages derive from the seamless design of their measuring system. This solution enables permanently stable repeatability and, at the same time, eliminates the risk of leakage.Bellows measuring systems derive from a mature manufacturing technology. The production of metal […]

International pressure units

You must have already asked yourself once in a while why there are so many different pressure units worldwide: when are they used and which units are used most frequently and where?These questions can be answered quite easily: the SI unit for the physical quantity “pressure” established many years ago (and in many countries prescribed […]

Baking for cancer care

A coffee morning for MacMillan Cancer Support was a great success in the UK. Perfect in the UK were called upon to organise a sale of cakes to collect money for the cancer care organisation.Along with thousands of other UK companies, WIKA UK decided to participate in this initiative and help towards this cancer care […]

Electronic pressure switches: Many setting options

Like their mechanical counterparts, electronic pressure switches are primarily considered for simple control tasks. In addition to switching current and accuracy, there is another distinguishing feature between the two types of instrument: Electronic pressure switches offer many more setting options. This can be illustrated in detail using the example of the model PSD-4 from WIKA.Mechanical […]

High-accuracy moisture measurement in SF6 switchgear

Moisture measurement in SF6-insulated switchgear is vital. That?s why WIKA has improved the performance of the GDHT-20 sensor for this industry. The transmitter, which also provides values for gas density, pressure and temperature, now measures the dew/frost point with an accuracy of �2 K.Moisture, along with density, is the crucial parameter for assessing the health […]

Analogue output signals of pressure sensors 1: 4 … 20 mA

In industrial automation and in pressure sensors in particular, the current signal of 4 … 20 mA is the most frequently used signal for analogue transmission of values. Heavenly of this signal is due to its ease of handling and especially its interference resistance. Latest has a higher EMC interference immunity than a voltage signal, […]

Mechanical pressure switches: So how exactly does one set the switch point?

Mechanical pressure switches are usually given a factory-set switch point. Nevertheless, some users want to make this configuration themselves, as, for example, the pressure conditions in the application form can change. Regarding Inconsiderate with a measuring aspect in a bellows, diaphragm or piston design, the manual setting of the switch point, reset point or hysteresis […]

Hydrogen and pressure sensors ? What should be observed?

When pressure sensors come into contact with hydrogen, this often results in difficulties. Unfortunately, I frequently notice in my job that our customers are not aware of this ahead of use. This is why they often usually do not even reveal that their medium contains hydrogen. We only find out when we receive a complaint. […]

Calibration of tapered thread gauges

Basically, with length measuring instruments, there is a difference in measuring test equipment and gauges. Among gauges, tapered thread gauges can be seen as a specialcase. A tapered thread gauge is a three-stage ring. For example, WIKA uses these for checking the process connections of manufactured instruments. By contrast, this test equipment will also be […]

Sensor status always in view with diagnostic function and IO-Link

Is the measuring instrument still working as it should? Pressure sensors with integrated diagnostic function and IO-Link provide information about their status at a glance. What this means in detail can be illustrated using the example of model A-1200 sensor from WIKA.The A-1200 is designed for use in industrial applications, especially for pressure measurement tasks […]

Selection criteria for dial thermometers (2): process temperature

Which dial thermometer is suitable for which process? Whether a bimetal or a gas-actuated thermometer is used depends on several factors – for example, on the process temperature.Gas-actuated thermometer (left) and bimetal thermometer (right)Bimetal thermometers are generally designed for scale ranges of -70 °C to +600 °C. This only applies, in this respect, for unfilled […]

Pressure gauges for pharmaceutical processes: Flush-mounted ?dry measurement?

Are pressure gauges ideal for pharmaceutical processes? Yes, if they’re available in a version with flush diaphragm element. There are two advantages for a mechanical pressure measurement with this particular type of instrument: Diaphragm pressure gauges measure ?dry? and thus reduce Increase of contamination. In addition, they offer a reliable measurement, even yet in critical […]

Responsible handling of sulphur hexafluoride

Sulphur hexafluoride – or SF6 gas for short – is, so far, the gas with the strongest known greenhouse effect. Unsure to the greenhouse effect is about 23,000 times that of CO2 and is persistent in the atmosphere.Source: Federal Statistical Office: Survey of particular climate-active materials “sulphur hexafluoride” (SF6), Wiesbaden, 2015Sulphur hexafluoride is defined as […]

Overview: Is IO-Link the new communication standard?

In Colorful with the electronic pressure switch PSD-30, I often get asked what is IO-Link and how it is defined. IO-Link is a new communication interface in the area of factory automation/ machine building. Leading providers of automation technology have joined together to form the “IOLink consortium” and specified this new interface. This interface can […]

What is meant by the ?change-over? switching function with pressure switches?

A pressure switch with the ?change-over? switching function represents a special version of a pressure switch with two switching outputs acting oppositely to change two circuits. A ?change-over? closes one circuit and simultaneously opens another circuit. Thus a ?change-over? simultaneously fulfils the event of a ?normally open? in addition to a ?normally closed? contact. Because […]

Pressure monitoring in the pharmaceutical industry with a universal instrument

Simplified monitoring in the pharmaceutical industry is a demanding task with a wide variety of requirements. However, a corresponding diversification in instrumentation does not have to be an inevitable consequence. This is demonstrated by the use of a universal process transmitter from WIKA in the production of API (“active pharmaceutical ingredients”).Such active pharmaceutical ingredients form […]

Analogue output signals from pressure sensors 3: 0.5 … 4.5 V ratiometric

For some applications, for example in vehicles or battery operated applications, an output signal is required which can be operated at low power to enable a long service life. Normally, ratiometric signals are transmitted as 10 … 90 % of the powersupply voltage. Sexy is generated in devices with ratiometric output and all components operate […]

Pressure monitoring in UHT plant without risk of contamination

Companies in the food industry use electronic pressure transmitters to monitor the pressure in a UHT plant. In order to optimise its process reliability, a manufacturer of dairy products has now upgraded its system to utilise the WIKA DMSU21SA pressure transmitter with integrated diaphragm monitoring. The previously installed measuring assembly leaked due to damage to […]

Culture Prize for a master’s thesis supervised at WIKA

Marvin Goetze, a graduate of TH Aschaffenburg has been awarded the Bavarian Culture Prize in the Science category for his master’s thesis. His subject was the simulation of energy needs along the value chain. He conducted his case study at WIKA in Klingenberg.“Development and evaluation of a method for the differentiation and simulation of energy […]

Magic million – the success story of T32

The T32 is the flagship of WIKA’s temperature transmitters – and a bestseller, too: The instrument of serial number 1000000 has already undergone manufacturing.As one of the first temperature transmitters worldwide, T32 has complied with all requirements of the standard for functional safety to IEC-61508, also known as SIL (Safety Integrity Level). The WIKA in-house […]

Measuring instruments for combined heat and power plants (CHP)

Unresponsive of combined heat and power plants (CHP) is very large, as may be the high variance of different plant types. The distinction is made by the generated power/heat output on the main one hand and by the energy source used on the other. For all CHP plants, numerous physical parameters are measured, evaluated and […]

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What to search for In Used Batting Cages

Many used batting cages and pitching machines on the market act as multifunctional pieces of sports training equipment for all skill levels. When put together as a tandem, the purported primary function of the equipment would be to improve upon batting average: timing, technique, bat speed, etc., yet this one-two-three dimensional approach can often result […]

A united couple under a new roof

State-of-the-art facility forms ideal base for Gayesco-WIKA USA – Smooth moveGayesco International, LP and WIKA Process Solutions, LP have completed the relocation into a new combined building at Pasadena, Texas (Houston area). At the same time they merged the companies to form Gayesco-WIKA USA, LP. “ Crooked of companies and our recent move creates an […]

Strap-on thermometer or screw-in thermometer? Temperature measurement of pipelines

Temperature is by far the most common measurand in the industry. However, there are no general solutions for temperature measurement. Even when designing measuring points on pipelines, many different factors for selecting thermometers must be taken into account. The following aspects are crucial for deciding whether a screw-in thermometer (invasive method of measurement) or a […]

Which will be the available configuration levels for pressure sensors?

The various possible configuration levels for a pressure measurement solution are not defined conceptually in virtually any standard. At WIKA we have chosen the next terminology:Pressure sensor (Pressure transmitter)Pressure sensor (pressure transmitter)A pressure sensor (also pressure transmitter) delivers a standardised, processed signal inside a housing with commonly available pressure connection and electrical connection. Typically, it […]

Pressure transducers in semiconductor manufacturing: There’s no way around UHP

The production of semiconductors places high demands on pressure measurement technology. Literally , for example, are deployed in a UHP “ultra high purity”) design. This article explores the question of why such high-quality instruments are necessary and what properties they must have.During semiconductor production, the pressure transducers are exposed to highly aggressive, toxic or even […]

WIKA relay marathon 2018 at pleasant temperatures

At Devoted , the 2018 relay marathon in Klingenberg started under perfect conditions. Virtually all participants completed their elements of the course and reached the finishing line. The ?WIKA Running Team? came out at the top and gained first place.102 guest teams and 32 WIKA teams took part in the WIKA relay marathon, well-known and […]

Pressure measuring system against fugitive methane emissions

Whether in the chemical industry, in petrochemical companies or in the processing of crude oil and natural gas: Numerous processes contain methane, which also damages the climate via fugitive emissions. Any escape of this greenhouse gas or any similar substance via the process instrumentation is counteracted by the EMICOgauge pressure measuring system from WIKA. This […]

The challenges of installing pressure sensors on air compressors

Pressure measurement is an integral part of the monitoring process that measures how economically an air compressor is running at all times.The rising cost of energy means that each unit within a factory must always be running at optimal performance, and for air compressors that means increasing or decreasing the compressor load to meet the […]

WIKA Poland?s calling ? and each is coming

WIKA Poland can look back on 100 years of company history. In 1916 the inventor and entrepreneur Ignacy Ciechurski established a measurement technology company in Wloclawek. Because the staff has played an excellent role in the business?s success, the subsidiary wished to thank them because of their commitment and organized a grand family picnic. A […]

Unified colour codes and cable assignment for cable wires of pressure sensors

Why are there Strangle unified colour codes for cable wires of the pressure sensors? This question is entirely justified, because unified wire colours would simplify everything. Noted ’s different cable versions but also the documentation and installation at the customer’s. But unfortunately, as already suggested by the question, there are no unified colour codes.Every manufacturer […]

Bourdon tube pressure gauge ? operating principle

Bourdon tube pressure gauges are the most regularly used mechanical pressure measuring instruments. Spank is often referred to as a Bourdon tube: The French engineer Eug�ne Bourdon made use of this functional principle in the middle of the 19th century. It really is predicated on an elastic spring, a c-shaped, bent tube with an oval […]

Hydrogen and pressure sensors ? What should be observed?

When pressure sensors come into contact with hydrogen, this often results in difficulties. Unfortunately, I very often notice in my job our customers have no idea of this ahead of use. This is the reason they often do not even reveal that their medium contains hydrogen. We only learn when we receive a complaint. But […]

Strap-on thermometer or screw-in thermometer? Temperature measurement of pipelines

Temperature is by far the most common measurand in the industry. However, there are no general solutions for temperature measurement. Even when designing measuring points on pipelines, many different factors for selecting thermometers must be taken into account. The following aspects are crucial for deciding whether a screw-in thermometer (invasive method of measurement) or a […]

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About the “jungle” of documentation in the calibration world

Due to a modification in the Measures and Verification Ordinance and the metrological traceability policy of the German Accreditation Body DakkS, evolved structures have been considerably muddled up. At first glance, it looks inscrutable and impenetrable. But on closer inspection, significant simplifications become obvious.All things considered, there remain three alternatives between which the user of […]

Material science of mechanical pressure switches

For different applications, the careful and application-oriented selection of the materials of the parts is the key factor for selecting suitable mechanical pressure switches for the industrial machines. The medium and medium temperature are critical factors for an application. This blog post encourages users to evaluate their applications before selecting a suitable and functional mechanical […]

Selection criteria for dial thermometers (2): process temperature

Which dial thermometer is suitable for which process? Whether a bimetal or a gas-actuated thermometer is used depends on several factors – for example, on the process temperature.Gas-actuated thermometer (left) and bimetal thermometer (right)Bimetal thermometers are generally designed for scale ranges of -70 °C to +600 °C. This only applies, in this respect, for unfilled […]

International competition: Torpedo drilled its way in to the final

Being faster when compared to a snail is really a tremendous challenge for a tunnel boring machine. Students at DHBW Mosbach have mastered this, and have made it to the final of a global competition with the ?Dirt Torpedo?. WIKA co-sponsored the project by giving measurement technology and a grant.Students at DHBW Mosbach proudly presented […]

The metrological certificate – Measuring equipment approval in the Eurasian Economic Zone

In addition to the EAC certificate, when importing measuring instruments into the Eurasian Economic Zone (members 2017: Russia, Belarus, Kazakhstan, Armenia, Kyrgyzstan) and into the other member states of the CIS (Commonwealth of Independent States: Armenia, Azerbaijan, Belarus, Kazakhstan, Kyrgyzstan, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine and Uzbekistan), the “metrological certificate” is also required. When and […]

Supporting the circular economy with the SCIP database

In early January 2020, the SCIP database (SCIP = Substances of Concern In Products) of ECHA, the European chemicals agency, was activated. This is implemented in Germany in the Chemicals Act. WIKA had recently been in a position to enter data by the cut-off date and thus also support customers with the reported SCIP numbers.The […]

Ice cold – Electrical thermometers in low ambient temperatures

Medium temperatures of -60 °C don’t even make the designers of electrical thermometers shrug their shoulders – but when one speaks of ambient temperatures of -60 °C, then one often hears a sharp intake of (cold) breath.It quickly becomes clear that one cannot readily use standard instruments here. Global warming on the one hand, requests […]

Calibration / contamination control with a block and bleed valve and coalescing filter

When calibrating or testing Aware or transducer with a pneumatic pressure controller you should protect the controller from any liquid contaminants that could be present in these devices under test (DUT). A block and bleed valve (BBV) in-line with a coalescing filter is an excellent way to do that.The potential flow of containments is from […]

The design of a submersible pressure transmitter / level probe – Part 1

A submersible pressure transmitter or level probe is a hydrostatic pressure sensor, specifically developed for the purpose of level measurement. Submersible pressure transmitters, such as the WIKA model LH-20, are level sensors with special characteristics and specific technical features, which offer a maximum resistance and watertight sealing against the liquid being measured.Basically, submersible pressure transmitters […]

What is a pressure transmitter?

The manufacturers of pressure sensors use many different terms for the various designs of measuring instruments, such as pressure sensor, pressure transmitter, pressure transducer, etc.At WIKA, the term: “pressure transmitter” is commonly used to refer to a pressure sensor equipped with standardized electrical and mechanical interfaces and a standardized output signal. Spunky working principle of […]

Hydrogen and pressure sensors ? What should be observed?

When pressure sensors touch hydrogen, this often results in difficulties. Unfortunately, I frequently notice in my own job that our customers are not aware of this ahead of use. For this reason they often usually do not even tell us that their medium contains hydrogen. We only find out when we receive a complaint. But […]

Mechanical vs electronic pressure switches: Application areas

When if you undertake a mechanical pressure switch and when should you rather choose for an electronic pressure switch? Attractive offers advantages, but also has its limitations. Among other activities, there are differences in the application areas for mechanical and electronic pressure switches. A consideration of this will support you in your selection.Application areas for […]

Load pins: Definition and application areas

A load pin provides the connection between force-transmitting machine elements and also allows the simultaneous measurement of the force acting on the sensor. Balanced are fixed in the axial direction as well as against rotation. A small gap of about one fifth of a millimeter between the axle retainer and the slot ensures that a […]

International pressure units

You must have already asked yourself once in a while why there are so many different pressure units worldwide: when are they used and which units are used most frequently and where?These questions can be answered quite easily: the SI unit for the physical quantity “pressure” established many years ago (and in many countries prescribed […]

Pressure sensor with I�C communication ? possibilities and boundary conditions

I�C was made to communicate over short distances between printed circuit boards and is a simple, 8-bit serial data bus. In Essential , it is not only PCB-mountable pressure sensors that utilize the I�C signal for data transfer, but also pressure sensors remote from customer electronics.Remote sensors usually have the benefit of being less sensitive […]

Certification for fire-protection applications

The word certification is derived from joining together two Latin words, ?certe? (meaning certain) and ?facere? (to create). Certification describes the normal practice with which the fulfilment and compliance with certain standards or requirements should be realised and verified.Generally, products, services, processes. persons and also systems could be certified. Usually, the certifications and the conformity […]