E+C August 2018

round up

TEMPERATURE MEASUREMENT + INSTRUMENTATION

High-performance industrial thermal imaging Fluke Process Instruments recently announced the Ther- moView TV40, a high-performance industrial thermal imager designed for the most challenging environmental conditions. Supported by intuitive and powerful analysis software, the new thermal imager provides a fully integrated solution for temperature control, monitoring and data archiving to ensure process traceability and product quality. The ThermoView TV40 provides a thermal imaging solu- tion for monitoring, analysing and resolving in a wide range of industrial environments. This versatile thermal imager has the performance and personalisation capabilities needed for continuous process monitoring and control. The standard TV40 thermal imager is offered with an 'on-board' lens, which means that there are no external moving parts. It is housed in an IP67 enclosure using industrial-sealed connectors and operates in ambient temperatures up to 50°C. The camera has a web interface, and basic setup can be done via any PC with web browser. The camera’s GigE interface al- lows for high-speed data transfer at 60 frames per second and a Power over Ethernet (POE) option. ThermoView full system software offers a variety of analysis and process monitoring tools in a single package. Features include: • Continuous or intermittent inspection of temperature events. • Independent emissivity for each Area of Interest (AOI) and user-configurable setup of temperature conditions to trigger events or alarms, which can interface to dis- crete input/output (I/O) devices. • Software designed to interface with process control equipment, receiving synchronisation inputs and provid- ing pass/fail logic outputs; perform product inspections, temperature alarming and monitoring; and enable pro- cess temperature archiving. • Temperature analysis tools for trending and product troubleshooting, as well as I/O alarming for over and un- der heating conditions. • Analysis capabilities for real-time isotherm, subtraction, histograms and trending analysis. Enquiries: R&C Instrumentation. Tel. +27 (0) 86 111 4217 or email info@randci.co.za

New aseptic control valve for hygienic and operational safety The requirements for hygienic and operational safety in the pharma- ceutical, biotechnology and the food and beverage industries are con- tinuously increasing. In order to fulfil the requirements and the associ- ated customer requirements, GEMÜ has developed the PD design to combine the advantages of diaphragm valves with regard to cleanabil- ity with the advantages of globe valves with regard to controllability. A diaphragm valve is the first choice when a valve is needed that is easy to clean and suitable for CIP and SIP processes. Diaphragm valves can also be used to implement rough control applications, pro- vided that the desired flow rates are large enough. However, if a fine batch is required or a large control range must be covered, diaphragm valves soon reach their limits. Globe valves with flow restrictors may be precise control valves, but they are anything but aseptic. Due to the so-called lift effect on the spindle, medium is transported into the gland packing and is not removed during plant cleaning, which can lead to the accumulation of dirt particles in this area and/or the multi- plication of bacteria. In order to avoid this, bellows made from PTFE or stainless steel are often used as actuator seals. With this design solution, medium can be deposited between the folds of the bellows. For the GEMÜ 567 BioStar aseptic control valve, a new approach was therefore adopted to achieve the hermetic separation of the me- dium from the actuator while simultaneously achieving very good valve control characteristics. The separation of the area conveying the medium from the actuator was implemented through a newly devel- oped PTFE diaphragm and the automatic control solution through a parabolic plug.The basis for this was the GEMÜ PD design.The advan- tages of the plug diaphragms and the angle valve body are cleanability and the cavity geometry. This makes the valve a suitable control valve for aseptic areas and most similar applications. Enquiries:Tel. +27 (0) 11 462 7795 or email info@gemue.co.za

40 Electricity + Control

AUGUST 2018