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Measurement and Testing


New Benchmark in Flow Sensor Measurement for Safe Analyser Processes


Servomex (UK) has delivered a benchmark improvement to gas flow measurement and safety with the launch of Flowcube, a brand new sensor technology which integrates into its acclaimed analyser range.


Developed by Servomex to address the current limitations in gas flow measurement, Flowcube is an advanced sensor which for the first time enables multiple system diagnostics and data trending to be ascertained from the flow measurement. While gas flow has traditionally been measured


separately within a sample system, compromises with this technique has meant plant operators have to rely on basic “flow or no flow” status information which can only shut down a process when a potential error is detected. Flowcube is the innovative and cost-effective solution to this industry problem: a sophisticated and highly sensitive transducer design, placed in-situ of a Servomex analyser, which enables both accurate trending of the overall sample system and the implementation of preventive rather than reactionary maintenance for minimum disruption to processes.


These highly accurate measurements mean the basic “flow or no flow” status information is now superseded by a sophisticated two-stage alarm capability that introduces a ‘maintenance required’ trigger stage alongside the standard critical fault signal. Not only does this allow sample system issues to be dealt with before they cause intermittent, slower or inaccurate measurements, but it offers operators new flexibility in diagnosing problems early, scheduling maintenance and avoiding unnecessary, unexpected and costly downtime. In addition, Flowcube’s ability to deliver accurate measurements means trending data is reported via an instrument’s digital communications, enabling users to monitor sample system performance over time to reduce the risk of system failure.


Unlike thermal conductivity technologies and rotameters, which can be greatly affected


by thermal conductivity changes in the sample gas and density and viscosity changes respectively, Flowcube technology measures the bulk cooling characteristic of the gas. The result is a stable measurement that does not respond predominately to one physical gas characteristic and is more immune to changes in the sample gas mixture. Positioned at the outlet of the measurement cell to guarantee a representative sample is present at all times, the Flowcube sensor ensures maximum measurement certainty and optimum safety to enable users to set user-defined alarm levels with confidence.


Flowcube technology therefore enables operators to implement a preventative rather than reactive agenda for analyser flow control, avoiding costly plant downtime by allowing the scheduling of routine safety checks and sample system maintenance – a particularly useful function where operations are being run with minimum personnel on-site. With no consumable parts, an almost indefinite field service life and no special gases or setup required, Flowcube delivers low cost-of-ownership with just a simple calibration procedure required at a minimum of twelve months. Flowcube is certified intrinsically safe (EEx ia) for use in hazardous areas and with continually flammable gases, and it forms part of the ServoTough Oxy SIL 2 assessment for use in Safety Integrated Systems.


“Flowcube is a prime example of how Servomex applies our technical and analytical expertise to solving real customer issues,” says Chris Cottrell, Managing Director, Servomex. “Not only does it address a fundamental customer problem with the previously inflexible flow measurement techniques offered by our industry, but the improved alarm system and system trending measurements offer new and immediate benefits to customer operations.”


Flowcube will be available immediately as an option for the ServoPro MultiExact multigas analyser and award-winning ServoTough Oxy oxygen analyser, with compatibility for other Servomex analysers to follow.


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124


New Unique Pressure Calibrator is on the Right Traqc


Tradinco Instruments (Netherlands) intro - duces the Traqc-7 PC. A truly unique combination of compactness, ruggedness and functionality in one single instrument the market has not seen before.


The Traqc-7 PC is the solution to perform common pressure calibrations in the most efficiënt and easy way. All required functionality is integrated in one rugged handheld instrument. The cal ibrator has an ergonomically integrated handpump, for both pressure and vacuum and is designed to generate your test pressure fast, light and easy.


Fine control of the pressure is done with the volume regulator and ventvalve.


The measured pressure and output signal of the transmitter is clearly shown simultaneously on the large and bright display. Complete calibration procedures


and results can be stored in the memory of the instrument in combination with the AutoCal®


calibration management software.


The operation of Traqc-7 PC is very easy and self explanatory, using only three function keys and four navigation keys. The instrument has a very high accuracy of 0,02% FS and can be supplied in almost every range up to 20 barg. It has the capability of measuring the common mA and V signals, a comprehensive loop calibration functionality and has a pressure transmitter simulation function. The Traqc-7 PC can also be used for testing both powerless and powered (even up to 240VAC) pressure switches making it most suitable for your daily calibration tasks.


The Traqc-7 PC is developed by calibration engineers for calibration engineers resulting in an unique instrument in which 50 years of experience and know how are combined. Specifically designed for the daily use in the field. Reliable, rugged, fit for the job and capable of doing what it should: Testing, measuring and calibrating in the plant.


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New High Performance Flow Controller at OEM Price


Sierra Instruments (USA) announces the release of their new Smart-Trak® 50 Series.


Sharing the same advanced core sensor technology as the award-winning Sierra Smart-Trak®


100, the new Smart-Trak 50 is now available at nearly half the price with expedited off-the-shelf delivery at no extra charge.


“Whether you're a machine builder, systems integrator or end-user, the


Smart-Trak 50 was designed for you!,” says Matthew J. Olin, President of Sierra Instruments. “Right out of the box, the performance of the Smart-Trak 50 is incredible! But that’s just the beginning. It’s a modular design, so you’re good for years to come. Add communications, displays or future functionality as you need it.”


This performance/price advantage was made possible by reducing the number of mass flow controller parts by almost 50%, automating calibration around slightly reduced accuracy and leveraging R&D costs against already developed and proven sensor, valve and LFE technology.


are specifically developed for continuous analysis in the harsh on-line environment


BioTector Liquid Analyzers


• Low Maintenance – 6 month service intervals • High Reliability – 99.7% uptime & up to 86,000 measurements per year


• Self-Cleaning Technology – prevents clogging & sample contamination


• No Filtering requirements • Dramatic Payback on product loss, treatment costs & maintenance costs


• Guaranteed to handle the most demanding applications www.biotector.com


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Sierra has also been able to streamline delivery by stocking the seven most common flow ranges. OEM’s that buy in volume will see deeper price reductions. The Smart-Trak 50 delivers accuracy of +/- 1.5% FS, repeatability of +/- 0.25% FS, 300 millisecond response time and 0-50 slpm (nlpm) range in one compact footprint. It comes with 316L SS wetted materials, field zero & span adjust, analog outputs as well as RS-232 and RS-485 with optional large local display and two DB9 connectors located on either side of the enclosure for convenient wiring.


Sensor, LFE and valve technology have been field-proven for over a decade. The Smart-Trak 50 can be calibrated onsite, thereby avoiding expensive and time consuming returns to the factory. All Sierra flow meters benefit from support for the life of the instrument from 150 Sierra offices in 50 countries.-


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