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Communication

SIL (Safety Integrity Level) Part 1: Random Hardware Integrity

SIL achievement requires that the design of a safety function meets three specific criteria as outlined in the standard. This section will concentrate on number 1 – Random Hardware Integrity. What is functional safety? Functional safety is the active detection of potentially dangerous conditions, resulting in a demand for a protective mechanism or function to prevent or reduce the impact of hazardous events that might occur. Forming part of the overall safety of equipment under control (EUC), functional safety has focused on electronics and related software. IEC 61508 is an international standard for “Functional Safety or electrical/electronic/programmable electronic safety-related systems”.

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Heat Exchanger

Heat Exchanger Differentials

A Heat Exchanger plays an important role in many industrial processes from chemical plants to water treatment. Their role allows operation processes to run effectively and efficiently. Today we want to look at how to get the most out your operations that involve Heat exchangers. What is a Heat Exchanger? Heat exchangers are devices that have been designed to move heat between two or more fluids. Heat exchangers play a pivotal role in industrial applications. They are used for purposes of heating and cooling of process fluids on a large scale. The Efficiency of Heat Exchangers The efficiency of your

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Vout vs temperature graph
Measurement

Linearization of temperature measurements

Temperature is the most widely measured value in process control. Across a wide variety of industries from large-scale chemical manufacturing to small labs, accurate temperature measurement is relied upon to ensure such things as yields, quality, safety and compliance. The most common methods of measuring temperature in an industrial process are by either thermocouple or RTD (Resistive Temperature Devices), with each having its own strengths and weaknesses, depending on the conditions being measured. Neither thermocouple nor RTD sensors are linear in nature. This means that their signal output is not directly proportional to the temperature being measured, with distinct curves

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Diagram of a Wire wound RTD
Sensor

How do RTD temperature sensors work?

The Fundamentals of RTD temperature sensors An RTD temperature sensor is a common device for temperature measurements in a wide range of industrial applications. In this article, we take a look at how they work, the most common types, and their advantages and disadvantages. The acronym “RTD” stands for “Resistance Temperature Detector”. Typically, RTDs contain either platinum, nickel, or copper wires, as these materials have a positive temperature coefficient. This means that a rise in temperature results in an increased resistance – this change of resistance is then used to detect and measure temperature changes. Platinum RTDs Platinum RTDs are

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Communication

Customer Stories: Pentronic Temperature sensors go “hand in hand” with PR temperature transmitters in equipment all over the world

Pentronic values PR products ability to solve their customers problems and the quality and ease of use of PR devices Pentronics is a leading temperature sensor manufacturer located in Gunnebo in Sweden. The company develops, manufactures and sells thermocouples and Pt100 resistance thermometers (RTDs), cables and connectors, and also processes connections and market IR-radiation pyrometers, transmitters as well as instrumentation like indicators, controllers, loggers and temperature calibration equipment. Pentronic’s temperature sensors are found in equipment all over the world. Pentronics have been working with PR electronic products for more than 20 years. Pentronic values PR product ability to solve their

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Analytical

Customer Success Story: Improved diagnostic information resulted in significant cost savings

A company who has relied on PR Electronics products used the data provided by the PR4511 communication enabler to develop software modules in the DCS that provide full diagnostics. The client company has been able to use the data for preventive maintenance. With the 4511 mounted on PR 4000/9000 devices, it is possible to get digital access to process values and benefit from extensive diagnostic capabilities. Regular monitoring of data throughout the manufacturing process can help plan for preventative maintenance, identify problems in advance and save cost. Diagnostics data for preventive maintenance The 4511 offers several ways to access process

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Communication

Customer Story: Electrical noise generated by other analog signals and automation equipment is not an issue we have to deal with

Cool Clean Technologies, a US-based OEM manufacturer of CO2 technology systems, chose the PR Electronic’s 3331 temperature converter for many of its cleaning solutions – the main reasons: greater channel density, EMC performance and easy configuration. Cool Clean Technologies is the world leader in the design and manufacturing of CO2 technology systems. Their CO2 technology is used in many applications involving the medical, aerospace, consumer electronics, and semi-conductor industries. Among its products and solutions, Cool Clean Technologies offers cleaning solutions for ambient pressure environments such as the AILCS CO2 Spray Cleaning System (pictured to the left). Examples of CO2 cleaning

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Customer Story: Stable and accurate temperature signal readings in natural gas compressors with heavy engine vibration

A number of applications require signal conditioning devices to operate in extremely harsh environments – natural gas compressors with heavy engine vibration is one example… An Italian manufacturer of natural gas compressors selected the PR 5333D transmitter for its compressor engines because of the transmitter’s ability to deliver high quality temperature readings in an ATEX area with heavy vibration… CUSTOMER STORY Safe S.p.A. is one of the world’s leading manufacturers of natural gas compression solutions for commercial and industrial applications. The company specifies the PR 5333D 2-wire programmable transmitter when designing heavy-duty gas compressors for reliable and efficient operation throughout

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Communication

The 4179 Universal AC/DC Transmitter

The 4000 Series: 4179 Universal AC/DC transmitter In all aspects of the design, PR electronics has focused on the multi functionality of the 4000 series. Therefore, the six product variants cover hundreds of applications, resulting in reduced stock as well as increased flexibility and competitiveness. Signal conditioning spare part inventories are a necessary part of running a manufacturing process. Many factory managers want to keep inventories to a minimum. A fast and simple way to achieve this is by deciding on multi functional transmitters as the site standard. Having one variant that applies to a broad range of signal conditioning

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