INSTRUMENTATION • ELECTRONICS
VARIABLE SPEED ACTUATORS enhance PROCESS CONTROL E
lectric actuator manufacturer AUMA has added variable speed models to its proven
SA actuator range. The new SAV multi-turn actuators for open-close duty and SARV multi-turn actuators for modulating duty use ACV intelligent actuator controls to give full control of motor speed. A speed control range of 1:10 allows both accurate positioning and rapid operation. For control valves, the speed can reduce progressively as the valve position approaches the in positioning accuracy.
different speed settings across the full valve travel help to avoid pressure surges and cavitation. Soft start and soft stop minimise mechanical
AUMA’s new SAV and SARV variable speed actuators combine precise positioning with rapid travel
stresses on the valve, motor and gearbox.
Actuator speeds can be set independently for the open and close directions, and for emergency operation. Speed can also be controlled by an external signal to take advantage of additional control variables or algorithms. A further option is speed synchronisation between two actuators. The new SAV and SARV actuators are available in six sizes covering torques up to 1,000 Nm. Speed ranges include 6–60 rpm, 12–120 rpm and 24–240 rpm. Explosion-proof versions are also available.
For more information visit
www.auma.com
SPECTROMETERS for INDUSTRIAL WATER APPLICATIONS I
ndustrial wastewater is often extreme in its composition, for example high in acids, solids and other parameters or radically changing temperature. Online monitoring of the water quality allows an ongoing 24-hour process control, reducing product loss, optimising the cleaning process, saving operating costs and meeting regulatory requirements. To be able to offer optimal products for the industrial water market, s::can has developed its industrial product category. The s::can industrial range includes the spectrometer probes spectro::lyser titanium pro and spectro::lyser industrial ATEX, as well as sensors such as ph::lyser pro, condu::lyser pro and redo::lyser pro. There is a diverse range of mounting options and cleaning devices, the installation environment.
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spectro::lyser titanium pro proves itself through its titanium grade 2 housing, which is extremely resistant on the outside and contains innovative technology on the inside. The probe can withstand an operating pressure up to 10 bar and temperature up to 50°C. Furthermore, it is equipped with special, extremely robust O-rings. The spectro::lyser industrial
can be used in explosive areas and is therefore the perfect solution for industrial wastewater and sewers. Both spectro::lysers measure the parameters TSS, turbidity, NO3-N, COD, BOD, TOC, DOC, UV254, NO2-N, colour, O3, HS-, alarms, temperature and pressure. The additional sensors for measuring redox, pH and chlorine dioxide complete the product range.
Many industrial users are especially interested in the optimisation of
product-related processes that can be achieved by spectrometry, such as an in the production process and quick countermeasures. Production costs can product loss and operating capital. are the optimisation of processes and chemical dosing, continuous monitoring to compliance regulations and many more.
s::can’s industrial product category provides the optimal solution for industries such as textile, galvanic, tanning, pulp and paper, pharmaceutical, food and beverages and many more. spectro::lyser titanium pro is additionally ideal for monitoring coastal seawater, brackish water and water intakes at desalination plants.
For more information visit
www.s-can.at
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