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Sheltering solutions for Trafag’s gas density monitors

Sheltering solutions for Trafag's gas density monitorsTrafag density monitors are utilized globally in diverse climates, ranging from high-altitude mountains to desert landscapes. In outdoor settings, the instruments face particularly demanding requirements. They must withstand extreme temperature fluctuations, intense solar radiation, rain, snow, humidity, and sandstorms, all of which can impact their performance. As high-precision instruments, density monitors play a crucial role in ensuring the safety of high-voltage installations.Trafag density monitors are utilized globally in diverse climates, ranging from high-altitude mountains to desert landscapes. In outdoor settings, the instruments face particularly demanding requirements. They must withstand extreme temperature fluctuations, intense solar radiation, rain, snow, humidity, and sandstorms, all of which can impact their performance.…

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How does a pressure transmitter work?

https://player.vimeo.com/video/846302072?title=0&byline=0&portrait=0 To understand how a pressure transmitter works, it is enough to concentrate on its two key elements: one is the pressure sensor that captures the pressure of the medium and converts it into an electrical signal. The other is an application-specific integrated microchip. It is needed to convert the generated electrical signal into a normalized output signal. Pressure sensor The pressure sensor consists of a thin film-on-steel cell (Figure 1) in which the resistance bridges are applied to the surface of a steel sensor element as a thin film. This thin film is only a few atomic layers thick. When pressure is applied to the pressure sensor, its membrane deforms at predefined…

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Hydraulics

Reliable pressure measurement under harsh conditions  Pressure sensors for hydraulic applications - sometimes also called pressure transmitters or pressure transducers, (see also Pressure transmitters) measure the pressure of the medium hydraulic oil in valves, pumps, cylinders and pressure accumulators, etc.. They are therefore central elements for the control and regulation of hydraulic systems. These systems are often components of large and expensive machines or plants, where a standstill or even failure would have far-reaching consequences. For this reason, pressure transmitters for hydraulics must always function reliably - even under harsh conditions. Therefore, the robust design is very important. Hydraulic applications are divided into two categories: The category of stationary hydraulics includes areas of…

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Absolute electronic insulating gas density measurement based on the oscillating quartz principle

Starting in the mid-90s, Trafag introduced gas density sensors. They are the first choice when continuous and long-term, drift-free insulating gas density measurement and data acquisition are required. Exposure of an oscillating quartz to gases of different densities causes a shift and damping of the resonant frequency. The insulating gas densities of SF6 as well as those of alternative insulating gases can thus be measured directly and electronically. The operational reliability and operational safety of gas-insulated high-voltage switchgear can only be guaranteed if the required gas density in the pressure compartments is maintained. Leakage would endanger the safety of the switchgear and at the same time violate environmental regulations. SF6 in particular is…

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NAI 8273 IO-Link Pressure Transmitter and Switch

NAI 8273 IO-Link Main features Pressure measuring accuracy 0.3 %, 0.5 % Media and device temperature measurement COM3, min. process cycle time 1 ms 2 Switching outputs PNP/NPN configurable Optional: 5-fold overpressure resistance About The NAI 8273 IO-Link pressure transmitter is designed as a smart sensor and provides application-relevant information in addition to the process data. The process data contains the pressure value and the media temperature, which is measured directly at the exceptionally long-term stable thin-film-on-steel pressure sensor cell. The small sensor dimension combined with the pressure and temperature value of the media make the NAI 8273 the ideal choice in various applications. For the use of the conventional switching outputs, the…

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High-precision monitoring of the insulating gas density with reference gas comparison

High-precision monitoring of the insulating gas density with reference gas comparison The reference gas comparison principle was developed and patented by Trafag in the 1980s - and has become the leading industry standard for insulating gas density monitoring in high-voltage technology. If density monitoring must meet high requirements for reliability, accuracy, stability and durability, there is no way around is this fully temperature-compensated principle. Gas density monitoring: temperature compensation is a must Density measurement in pressurized, gas-insulated chambers is all about physics, because pressure, density and temperature have a specific relationship. The relationship is defined by isochores (constant change of state) for each specific insulating gas. The insulating performance of a gas-insulated chamber…

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Components of a pressure transmitter

A pressure transmitter measures the physical quantity of pressure in liquids or gases and provides the measured value as an electrical signal. The interactive graphic on this page guides you to the most important information about the key elements of a pressure transmitter: In addition to the main functional design elements, these are the interfaces to the environment, the most important criteria for selecting a proper pressure transmitter and the most important performance characteristics. The core elements of a pressure transmitter are the measuring cell, i.e. the sensor in the closer sense, the process connection; the electronics for signal processing; the electrical connection as well as the enclosing housing. Trafag pressure sensors are…

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Temperature monitoring

For 70 years Trafag thermostats have proven their robustness in order to withstand the most adverse environmental conditions. Industry usage ranges from air conditioning applications to engine and ship manufacturing and even to offshore oil and gas platform production. The appeal of Trafag thermostats lies in their high switching point precision even after decades of operation under harsh conditions without maintenance. Trafag thermostats are available in various sensor and housing versions, with various Ex and ship approvals as well as in railway-compliant versions. Measuring principle A capillary tube filled with liquid reacts to a temperature change as a result of the principle of thermal expansion. This expansion is detected using a precision structure…

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FPT 8236 Flush Membrane Transmitter

Main features Flush membrane with smooth and plain surface Membrane in Duplex steel 1.4462 Completely welded sensor system Excellent long-term stability About The FPT 8236 pressure transmitter impresses with an absolutely smooth and robust flush-mounted measuring diaphragm made of corrosion-resistant duplex steel. Trafag’s proprietary thin-film-on-steel sensor technology ensures a wide temperature range and excellent long-term stability. Technical Data Product code: 8236 Name: FPT Designation: Flush Membrane Transmitter Measuring principle: Thin-film-on-steel Applications: Food Industry, Hydraulics, Machine tools, Process technology, Water treatment Accuracy @ 25°C typ.: ± 0.5 % FS typ. Output signal: 4 ... 20 mA, 0 ... 5 VDC, 1 ... 6 VDC, 0 ... 10 VDC, 0.5 … 4.5 VDC ratiometric Electrical…

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Pressure and temperature monitoring for hydraulic applications

Applications in mobile and stationary hydraulics are among the most demanding in terms of robust and reliable sensor requirements. Trafag pressure transmitters are used in applications from high accuracy test benching to heavy construction and agricultural equipment. They are proven for long term stability in extremely harsh environments from the dusty heat of deserts to the icy cold of sub-arctic forests. The reliable pressure transmitters with great long-term stability are highly prized for stationary hydraulics as well, for they avoid costly production interruptions. Agricultural and forestry machinesTractors, harvesting machines, transport machines Renewable energiesRotor control in wind power plants, solar tracking for photovoltaic systems Construction machinesExcavators, mobile cranes, concrete pumps and mixers Communal and…

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Picostat pressure switch – 9R5

The 9R5 of the Picostat series is based on our long lasting experience in the railway sector. The new Picostat generation with improved performance and new design meets the demanding requirements of rail vehicle applications. Main features Stainless steel housing Stainless steel bellow sensor, welded Compact design Rugged housing Meets EN 50155 (Railway) Technical Data Product code: 9R5 Designation: Picostat Railway pressure switch Measuring principle: Steel bellow welded Applications: Railway Approval / conformity: EN 50155 (Railway), EN 45545-2 (Fire protection), EN 61373 (Shock, vibration), EN 60730-1/ EN 60730-2-6: type 2.B.H Output signal: 1 Floating change-over contact (SPDT) Electrical connections: EN 175301-803-A (DIN 43650-A) Media temperature: –40°C ... +85°C Ambient temperature: –40°C ... +85°C…

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Trafag revolutionises the measuring of highly dynamic pressure curves with ASIC

Trafag has succeeded in unifying the highly dynamic response behavior of a test bench sensor and the extreme robustness of a mobile hydraulic pressure transmitter by combining thin-film-on-steel measuring cells and an ASIC developed in-house. The Trafag ASIC TX with an innovative parallel mixed-signal structure is the key to a response behaviour at nearly unlimited speed. In many applications, above all in the testing field, the aim is to record highly dynamic pressure curves, e.g in order to analyse the opening and closing performance of valves, track pressure curves of explosions and explosive pressure expansions or to examine brief pressure peaks in hydraulic systems. Transmitters for industrial applications on the market are generally…

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Video on DPC 8380 and DPS 8381

The DPC 8380 and the DPC 8381 are the ideal combination of pressure switch and transmitter with pressure display. The parameters are set on the device or in a timesaving way via an NFC - smartphone App. The settings in combination with a comprehensive set of options make the DPX 838x suitable for a wide range of industrial applications. In this new video the advantages of the pressure switches with display DPC 8380 and DPS 8381 are shown: Quick and easy parametrisation via smartphone and app Flexible installation and fitting Analysis of the pressure profile Convenient storage https://youtu.be/FwaY21M1hVE?list=PLOqXlZntPE-QAtCgj0Gr1nDpfKyPcXsKw

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Trafag revolutionises the measuring of highly dynamic pressure curves

Trafag has succeeded in unifying the highly dynamic response behavior of a test bench sensor and the extreme robustness of a mobile hydraulic pressure transmitter by combining thin-film-on-steel measuring cells and an ASIC developed in-house. The Trafag ASIC TX with an innovative parallel mixed-signal structure is the key to a response behavior at nearly unlimited speed. Download file - H70350

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Easy parameterization with smartphone app and SMI

The Sensor Master Interface (SMI) is used to set parameters of electronic pressure switches such as switching points, output function and switching delay time as well as to adjust the measuring range of submersible pressure transmitters. By reading the device data, the connected pressure measurement device can be precisely identified and the parameters can be checked. The parameterization of Trafags electronic pressure switches NAT 8252, NAH 8254 as well as NAR 8258 can now be carried out easily and directly on site with the Sensor Master Interface and the corresponding smartphone app. Until now, electronic pressure switches with different device configurations had to be kept in stock. In addition, optimization during system development…

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Railway Pressure Transmitter / Switch NAR 8258

Swiss based Trafag is a leading international supplier of high quality sensors and monitoring instruments for measurement of pressure and temperature. The pressure transmitter NAR 8258 with increased accuracy of 0.3% was specifically designed for railway vehicles (EN 50155) and has a long-term stable thin-film-on-steel sensor cell. The wide temperature range from -40°C to +125°C and the triple overpressure protection make the NAR 8258 the ideal choice for railway vehicles in rough environmental conditions. The new NAR 8258 pressure transmitter/switch is the successor of the well-proven NAH 8253 with railway option. In addition, the NAR 8258 includes a pressure switch option. Based on the robust, reliable and successfully introduced NAH 8254 the NAR…

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Electronic Dual Pressure Switches with display DPx 838x – configurable by NFC Smartphone App

The parametrisation happens with ease and can be done very quick by NFC smartphone app and a few finger taps. The set of parameters in combination with a comprehensive set of options make the electronic pressure switches versatile devices for demanding applications. The DPC 8380 contains a ceramic measuring cell whereas the measuring principle of the DPS 8381 is based on the proven thin film on steel measuring cell. The new electronic pressure switches with display, DPC 8380 and DPS 8381, are an ideal combination of pressure switch and transmitter with a pressure display. The parameterisation like switch points, output functions, switching delay times and display modes is done by an operating menu…

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Miniature pressure switch with 19 mm wrench size

The Swiss based Trafag extends their product portfolio with electronic pressure switches based on the successful miniature pressure transmitters NAT 8252 and NAH 8254.The types vary in the accuracy of 0.5% and 0.3%. The new extraordinary robust and reliable miniature pressure switches are a very compact solution for countless applications with rough conditions like pressure peaks, high temperatures or shock and vibration. The heart of the new electronic pressure switches NAT 8252 and NAH 8254 is Trafags very robust and extraordinary stable thin-film-on-steel sensing element, which remains accurate and reliable even under rough conditions due to the triple overpressure safety and the fully welded design. The electronic is based on the inhouse designed…

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New crimping tool for electrical connections

Concerns ECT 8471 / 8472 / 8473 Ceramic pressure transmitter The tool for crimping the electrical connectors Packard Metri Pack, M12x1 and Industrial Standard for the new production line was optimized to improve the quality and reliability of our instruments. All instruments manufactured with the new tool can be identified by six crimping marks on the housing. All specifications and properties remain unchanged. DThe robustness of the new design is slightly higher, particularly under elevated temperatures. The major difference is the visual appearance due to the different manufacturing tool. The major difference is the visual appearance due to the different manufacturing tool. The change affects the types 8471, 8472, 8473, 8474, 8475 and 8477 with…

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New Marine Pressure Transmitter ECTN 8477 completes Trafag’s shipbuilding portfolio

The reliable and robust Marine Pressure Transmitter ECTN 8477 completes Trafag’s pressure transmitter product range for the shipbuilding industry. It has already been approved for the use on ships by the classification societies of GL-DNV, KRS and RINA. The Marine Pressure Transmitter ECTN 8477 with thick-film-on-ceramic sensor bases on the technology of the ECTfamily which has proven its reliability in thousands of demanding industrial applications. The Marine Pressure Transmitter ECTN 8477 has already been approved for the use on ships by the classification societies of GL-DNV, KRS and RINA and more are yet to come. Pressure measurement ranges from 0…1 bar up to 0…400 bar, allowable temperature ranges from -25 … 85°C and a…

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