Types of transmitter models

Pressure transmitters are used in various industrial fields and depending on the signal they produce, they are also known as pressure converters or transmitters. These instruments work by measuring pressure through a flexible component, then converting the amount of flex to a measurable electrical signal.

Transmitters are designed based on the size and complexity of the system and reflect different forms of pressure reading including absolute pressure, gauge and pressure differential.

To help you evaluate different brands of transmitters, we have collected information about some of the top transmitter manufacturers.

VEGA 

Vega Transmitters (VEGA) Pressure measurement techniques can be used to measure process pressure or differential pressure as well as surface, volume, density or flow in all parts of the technology process.

Measurement ranges in Vega pressure transmitters start from a few millibars and continue up to high pressures up to 1000 bar. Various parts have been used to measure pressure in this instrument.

Vega pressure transmitters provide high-precision readings of gases, vapors, and liquids.

A special advantage of Vega is that the status display has a 360 degree change of position. Thanks to the 360-degree mode change display, all switching modes are recognizable from any direction. The color of the bright ring is clearly visible even in daylight. You can also easily choose one of more than 256 colors.

At a glance it can be seen whether the pressure measurement process is running? Is the sensor changing? If there is a possible error in the work process, it will be determined.

Also, the new VEGABAR series pressure switches are perfectly suited for standard applications.

Adjusting the function of this transmitter is possible through a smartphone. Designed hygienically and sterile. Easy integration is possible thanks to IO-Link.

Dyer 

The 626 and 628 series industrial pressure transmitters offer all amplitudes, outputs and connections. The CR628 series is an OEM pressure transmitter . Adjustable amplitude of ES634 series pressure transmitter has full amplitude accuracy of 0.5% and amplitude of 5000 Pascals. The Dyer 636 series pressure transmitter is made of stainless steel and is explosion-proof. Its accuracy is 0.3% and it starts with 4-20 mA or 5-5 VDC.

The 637 series is also made of stainless steel and is explosion-proof. Its accuracy is 0.25% and it works with 4-20 mA. The 637S Series Hygienic Pressure Transmitter complies with NACE standards and has an accuracy of 0.25%. The 642 series of these transmitters have an accuracy of 0.1% and wet WSS components. The 672 Series Low Pressure Transmitter has a single pressure connector and its range is up to 10 inches.

(BALLUFF)

Balov’s BSP pressure transmitters (with display) are easy to install and read. The parameter of these transmitters is in accordance with VDMA standard. Dual rotation can be easily installed on it. Its body design is compact. The pressure range is 1- to 600 bar. Measures relative pressure. M12‌ connection, independent rotation.

Stainless steel or PVDF, G1 / 4, G1 / 2, NPT1 / 4

Selectable outputs (analog, digital, IO-LINK)

Expanded temperature range (instrument temperature -40 to +125 degrees Celsius)

Ceramic (Al2O3) measuring cells or stainless steel measuring cells

Honeywell ( HONEYWELL )

Honeywell pressure transmitters are a powerful device ideal for use with WECO 1502 connectors. These devices are known as Hammer Union pressure transmitters. The Model 427 (BFSL ۲ 0.2) ensures a smooth flow of the instrument cluster using a wider, shallower measuring port. This model is suitable for land and sea applications for oil and gas exploration and drilling.

Model 427 helps detect pressure changes by providing accurate and reliable data. This feature allows the operator to adjust the flow pressure during drilling. It also helps drilling operators better manage oil spills. Thus, the safety of operators is increased by analyzing potential hazards such as gas bubbles. The use of the honeywell model 425 transmitter is almost the same as the 427 model. This model is offered in two levels of accuracy, Best Straight Line (BFSL) and High Accuracy (BFSL-High Accuracy). Model 425 is designed and built for harsh conditions in onshore or offshore drilling and for use in the gas and oil industries as well as in drilling applications. These stainless steel transmitters are made of fully welded sealing. For this reason, they provide reliable and accurate data for detecting pressure changes.

Vika ( WIKA )

The Vika UPT-2x Transmitter is designed for applications that require a smart sensor. In particular, the temperature compensator empowers the Vika transmitter for a wide range of applications. The measuring cell is made of high quality 316L stainless steel or a combination of Elgiloy (cobalt, chromium and nickel alloy). This transmitter can be rotated 330 degrees. The LC screen can also be installed in a variety of positions that can be rotated up to 90 degrees. The LC display is easy to read even from a distance of 5 meters. The Hart Transmitter protocol can be installed in applications using analog techniques and modern communication systems. This transmitter can be configured directly on the site via the display and the operating module or the Hart interface. Vika transmitter is used in machine building, factory, control technology, pharmaceutical industry, food industry. 

IPT‌ Vika Transmitter is used in chemical and petrochemical industries, process engineering, pharmaceutical industry, food industry, hazardous areas.

Special features:

– Has ATEX and IECEx standards

– Full compliance with SIL2 (SIL3) requirements

– Metering cells made of metal and welded CPT‌ model of this brand of transmitters are durable and very accurate. The ceramic capacitor of the cell provides accurate measurement of pressure values ​​even in the small measuring range. This model is specially sealed, so it works in almost all industries without any problems. There are seven different types of this model, so you can choose the type that suits each operating environment. This model is also used in chemical and petrochemical industries, process engineering, paper industry, water and wastewater and hazardous areas.

Siemens ( siemens )

The Siemens SITRANS P500j Transmitter is a digital pressure regulator for measuring differential pressure, surface and current with the highest accuracy. Long sensor life reduces maintenance costs thanks to increased calibration intervals. It also ensures high reliability against measured pressures in the long run.

The positive features of these transmitters are as follows:

These transmitters control the systems better due to the very short step response time.

Use with direct connection at process temperature up to 125 ° C (257 ° F) even without a remotely sealed system.

High user-friendliness via full text display with backlight and 3 push buttons.

The Siemens Transmitter can be easily configured and operated using the Hart protocol.

Host diagnostic options can be easily used without software. Curved displays and trend charts can be displayed on the screen to monitor user-friendly trends.

( sick )

Among the characteristics of Sikh transmitter are as follows:

Reliable and highly accurate measurement technology

Wide range of applications

No mechanical wear, no need for maintenance due to lack of movement of parts

Simple and low cost installation

The optimal solution for individual needs due to the very diverse adjustment

Relative, absolute, etc. ranges for measurement

Process temperature up to 150 ° C (optional)

High impact and vibration resistance

Accuracy 0.25 and 0.5 percent

The PFT electronic pressure transmitter is used to accurately measure the pressure of liquids and gases. This device has good features with high quality measurement technology. Sick transmitter is suitable for harsh and harsh environments in industrial applications.

The PBS‌ Sikh Sanitary Electronic Pressure Transmitter is made using waterproof components with no cavities or dead space for use in the food and beverage industries. Its first-class stainless steel surface is soft and clean. This device is basically based on CIP and SIP protocols. These Sik transmitters allow you to perform a safe operation and also have maximum access to the system.

PBS can be accessed with two switches and an analog output with O-link in one tool. Configuring it with three push buttons and a larger screen makes it easy to work with. The cover can be rotated in two ways, allowing the display and the mechanical connection to be adjusted according to specific conditions at the same time.

The last word

While pressure sensors can detect pressure changes by converting changes in resistors or capacitors to electrical values, these electrical signals are relatively weak. These signals are not strong enough to be transmitted at other distances, or to a controller that may be far away from the pressure sensor. A pressure transmitter is needed to achieve this goal . A pressure transmitter includes a pressure sensor plus a conditioner signal to amplify the output of the pressure sensor. Pressure transmitters usually have a display that shows the amount of pressure transmitted by the pressure sensor and converted to a standard output. This output is usually 4 to 20 mA or a digital signal.

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