New Level Transmitter Technology Eliminates Impulse Lines and Capillary Tubes

By:Admin on 2023-06-07 08:29:25

In today’s modern process industries, level measurement is an essential part of monitoring and controlling the fluid level of tanks, vessels, and other containers. There are several ways to measure the level of fluid, including ultrasonic, radar, and differential pressure (DP) level transmitters. Among these, DP level transmitters have been widely used and offer excellent accuracy and reliability.In traditional DP level transmitters, impulse lines and capillary tubes were used to transmit the pressure difference between the liquid and the reference pressure to the measuring cell. However, these lines and tubes were prone to clogging, leakage, or freezing, which caused inaccurate measurements and increased maintenance costs.Thanks to technological advancements, DP level transmitters have evolved to overcome the limitations of traditional designs. Modern DP level transmitters do not use impulse lines or capillary tubes, making them easier to install, operate, and maintain. Instead, they use electronic remote seals or direct-mount seals, which eliminate the need for long tubing runs.Electronic remote seals use a digital signal processor (DSP) to convert the pressure signals from the remote seal into a standard output signal. The remote seal can be located up to 328 feet away from the transmitter, allowing it to be installed in harsh or hazardous environments. The signal is transmitted via two-wire technology, eliminating the need for additional wiring and reducing installation costs.Direct-mount seals can be mounted directly on the process connection of the transmitter, eliminating the need for impulse lines or capillary tubes. They are available in a range of materials and designs to meet different process requirements. Direct-mount seals are easy to install, and they do not require additional calibration or adjustment.Capillary level transmitters offer an alternative solution that eliminates the need for impulse lines and capillary tubes. Instead, they use a single capillary tube to connect the process connection to the measuring cell. The capillary tube is filled with a special fluid that transmits the pressure difference to the cell. Capillary level transmitters are accurate and reliable, and they offer excellent stability over a wide range of process temperatures and pressures.In conclusion, DP level transmitters have come a long way since the traditional designs that used impulse lines and capillary tubes. Modern transmitters offer several solutions that eliminate the need for these lines, making them more reliable, accurate, and easy to maintain. Capillary level transmitters offer additional advantages that make them ideal for certain process applications. When selecting a DP level transmitter, it’s important to consider the specific requirements of the process and choose the best solution that meets those needs.

Read More

Compact Single-Range Transmitters for Pressure Measurement

By:Admin on 2023-06-07 08:28:44

: The Key to Accurate Pressure MeasurementPressure measurement is a crucial aspect in many industries ranging from oil and gas production, process control, pharmaceutical manufacturing, to food processing. Accurate measurement ensures efficient production, reduced downtime, and enhanced safety. This is where pressure transmitters come into play.Among the available pressure transmitters in the market, the compact pressure transmitter stands out for its versatility and efficiency. The compact pressure transmitter is designed to provide the highest level of measurement accuracy, reliability, and ease of use over a wide range of applications. In this article, we will explore the concept of compact pressure transmitters and why they are crucial in pressure measurement.What is a Compact Pressure Transmitter?A compact pressure transmitter, as the name suggests, is a measuring instrument with a small and lightweight size that can easily fit into tight spaces. It consists of a pressure sensor that converts the pressure signal into an electrical signal, which is then transmitted to control systems for further processing.Compact pressure transmitters work based on the principle of piezoresistive measurements in conjunction with a Wheatstone bridge. When pressure is applied, the silicon piezoresistive sensor deforms, causing a change in the resistance of the strain gauge. The change in resistance is proportional to the applied pressure and is converted into an electrical signal that can be measured and interpreted.Features of Compact Pressure TransmittersCompact pressure transmitters come in different variants, with varying features depending on the intended application. However, some standard features exist across all models.1. High Accuracy: Compact pressure transmitters offer high accuracy and stability in pressure measurement. They have a precision of up to 0.1% of the full-scale range, reducing measurement errors and enhancing production efficiency.2. Versatility: The compact size of the transmitters makes them ideal for use in tight spaces where larger units cannot fit. They can also be used in different and harsh conditions since they are designed to be durable and withstand various environmental factors.3. Ease of Installation: Installing compact pressure transmitters is easy, thanks to their lightweight and small size. They can be installed using different methods such as threaded connections, flanges, and clamps, depending on the application.4. Digital Communication: Many compact pressure transmitters come with digital communication capabilities, such as HART, Foundation Fieldbus, and Profibus. This feature allows for remote configuration, calibration, and monitoring of the measuring devices.5. Low Power Consumption: Compact pressure transmitters consume low power compared to larger models, reducing energy costs and enabling production facilities to run more efficiently.Why Choose Compact Pressure Transmitters?Compact pressure transmitters are increasingly becoming the preferred choice for various applications. Here's why:1. Efficiency: Compact pressure transmitters offer high accuracy while taking up less space. They are also efficient in energy consumption, reducing production costs.2. Durability: These transmitters are designed to withstand extreme environmental factors and survive harsh conditions.3. Cost-Effective: Compact pressure transmitters are relatively cheaper than other measuring instruments, making them accessible to many industries for pressure measurement applications.4. Reduced Downtime: The high accuracy and stability of compact pressure transmitters reduce the likelihood of measurement errors and failures, preventing downtime and production losses.ConclusionCompact pressure transmitters play a crucial role in pressure measurement, offering high accuracy, efficiency, and versatility in a small and durable package. They are cost-effective, easy to install, and consume low power, making them the ideal choice for various industrial applications. Whether in oil and gas production, food processing, or pharmaceutical manufacturing, compact pressure transmitters are the key to accurate and reliable pressure measurement.

Read More