01222018Mon
Last updateTue, 02 Jan 2018 3am

Rotork Schischek compact explosionproof valve actuators selected for a petrochemical analysis

Rotork Schischek compact explosionproof valve actuators have been selected as the reliable solution for a critical petrochemical analysis process. Ecopetrol is the largest petroleum company in Colombia, engaged in oil and gas exploration, production and refining. The company uses Near Infrared Spectroscopy (NIR) to perform quantitative sampling separation of hydrocarbons. The process separates the hydrocarbons into four chemical groups – alkanes, aromatics, resins and asphaltenes.

Central to the operation of the process, sets of small two and three-way fast acting ball valves are used to gather the samples for analysis and precisely maintain the pressure, flow and temperature through the spectrometer.

Swift valve operation (typically less than three seconds) is essential to maintain the characteristics of the media for accurate sampling. Additional application constraints involve restricted spaces around valves, the hazardous area classification and requirements for failsafe operation, end of travel indication and low power consumption.

After considering the other options, Ecopetrol concluded that the electric Schischek actuator could satisfy all these demands with a reduced maintenance requirement in the demanding operating environment. Almost 100 Schischek RedMax actuators with associated hardware have been installed; the actuators are certified for Zones 2 and 22 hazardous area operation, environmentally protected to IP66 and equipped with self-adaptable 24 – 240V AC/DC power supplies. RedMax actuators are one of a range of electrical products designed by Schischek for explosionproof and non-explosionproof applications in the worldwide industrial, HVAC and marine industries.


Yokogawa Meters & Instruments Releases AQ6376 Optical Spectrum Analyzer

Yokogawa Meters & Instruments Corporation announces that it has developed the AQ6376 optical spectrum analyzer and will release it on February 16. The AQ6376 has a wide dynamic range and can perform precise, high resolution measurements of the optical spectrum of laser light in the 1.5–3.4 μm wavelength range. The AQ6376 is a bench-top analyzer that uses dispersive spectroscopy*1 and supports the 3-μm band, an industry first.

An optical spectrum analyzer is a measuring instrument that resolves the wavelength components of optical devices such as semiconductor lasers and fiber lasers in order to assess their properties. The AQ6376 will help to improve the efficiency of 3-μm optical devices and accelerate their adoption in fields such as environmental measurement and medicine, where they already are a topic of considerable interest.

Development Background:
In recent years, laser absorption spectroscopy*2 has entered wide use in the environmental measurement field for the detection of gases such as carbon oxides (COx), nitrogen oxides (NOx), and hydrocarbon gas (CxHy). Although 2-μm semiconductor lasers have mainly been used as the optical source in such applications, there is an increasing need for 3-μm lasers because these gases absorb more light at longer wavelengths. Optical lasers are also being gradually introduced in the medical field, where the need to analyze substances that contain water is driving demand for 3-μm fiber lasers. Accordingly, there is a growing need for a tool that can precisely measure optical spectra in the 3-μm band.

Moxa offers an Integrated Data Acquisition Solution to Simplify Industrial IoT

Moxa’s newly launched ThingsPro Suite is an integrated solution for distributed data acquisition and device management that can immensely simplify your Industrial IoT deployments. Built on an open Debian Linux platform, the ThingsPro Suite enables the integration of Modbus communications and device management, data acquisition and processing, and wireless networking, in a few simple steps.

Moxa, with its experience in Industrial IoT project installations over the past few years, is aware of the challenges companies have been facing while deploying Industrial IoT solutions. According to Ryan Teng, product manager, Moxa’s Embedded Computing Division, “For an Industrial IoT application, the value is in the data. Before the data can be used however, it must be gathered from thousands of devices. This is often a drain on engineering resources. ThingsPro Suite aims to provide a simple, integrated data-acquisition and device-management solution to speed up the development of these devices, thus shorten the time-to-market.”

Featuring the Data Logger and Wireless Manager utilities, ThingsPro Suite empowers users to focus primarily on their applications instead of the complex process of integrating the field devices with the applications in the centralized control facility. ThingsPro Suite is currently available with Moxa UC-8100-CG series computers.

ThingsPro Suite Highlights:

  • Ready-to-Run Data Acquisition Engine with Data-Logger Utility
  • Data polling engine for Modbus/RTU and Modbus/TCP
  • Modbus API to interface with user applications, providing greater programming flexibility
  • Data logging software that can interface with remote databases, easing data acquisition

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Rotork control valve actuation passes the glass making test

Following extensive testing, leading glass container manufacturers are specifying the Rotork CMA electric actuator for a critical valve control function in the glass making process. The valves are used to control the temperature and pressure in the furnaces by regulating the air and gas mixture with extreme precision. Maintaining a constant temperature and pressure is essential for energy efficient glass making. Traditionally, the industry uses various pneumatic and electric actuators for the modulating and isolating valves involved, but has recognised the need for a more reliable and energy efficient universal solution for this application.

Tests have demonstrated that the CMA out-performs existing equipment, providing improved precision, reliability and energy savings in a compact and easy to set product that is available in a range of sizes that suits all the various valve types encountered. In addition, the CMA’s versatile ability to interface with industry-standard 4-20mA or RIRO (Remote In Remote Out) control signals enables plants in different countries to standardise on the same product.

Furnace revamps, usually taking place after a period of ten years operation, provide the opportunity to introduce the upgrade, which typically involves up to forty valves on each furnace. Following the success of the tests, several hundred ATEX certified explosion proof CMQ250 and CMQ500 actuators have been installed during revamps around the world.

Saelig introduces High Accuracy, High Resolution Thermal Calibrator

The PIEcal Model 525B Automated RTD & Thermocouple Calibrator is an industrial temperature sensor calibrator that accommodates RTDs (resistance temperature detectors) and thermocouples with its built-in NIST-traceable cold junction sensor. The PIE 525B is also suitable for use in calibration labs since its high accuracy and resolution are achieved by using an extremely stable, low drift circuit design featuring a +/- 0.05degC reference thermistor. In addition to registering actual temperature, the PIE 525B shows the precise resistance value when displaying RTD temperature. It features patented automatic detection of 2, 3 or 4 wire RTD connections and also detects when individual wire connections are open circuit. Inputs are protected up to ±60VDC against possible misconnection.

The 525B fits in the palm of a hand and weighs less than a pound. Its rugged design allows for safe and easy use in the field with its protective rubber boot, low profile switches, easy-access AA battery compartment, and a brightly backlit display. The double-click menu system allows for quick setup, fast switching between functions, and simple pre-programming of set points or step/ramp times. Standard functions include sourcing and reading of 14 thermocouple types, 12 RTD curves, millivolts and resistance. Additional features include the ability to turn cold junction compensation on/off, the display of cold junction temperature, and a secondary display showing corresponding mV/Ohm temperature values.
For trouble-free temperature control in an industrial environment, it pays to have a well-designed calibrator on hand to quickly evaluate and check process control issues.

  • Increased number of T/C types from 10 to 14
  • Added RTD types for Platinum 10, 50, 200 & 500 Ohm for the 1.3850 (IEC 751/DIN) curve
  • More accurate & stable cold junction compensation -NIST Traceable Cold Junction Sensor in isothermal block
  • Secondary display - Shows millivolts and cold junction temperature while displaying thermocouple temperature and shows ohms while displaying RTD temperature
  • Troubleshoot RTD Sensors & Instruments - Automatic detection of 2, 3 or 4 wire connections indicates when individual wire connections are open. Verify proper instrument operation by measuring the excitation current.