104-11 Lohr, 2011-10-10

Keeping a constant eye on compressed air consumption

A large illuminated sensor display indicates the flow rate or air consumption in the system.

A large illuminated sensor display indicates the flow rate or air consumption in the system.

The new AF1 flow sensors from Rexroth reliably record air consumption and optimize efficiency

AF1 series flow sensors record the flow rate and compressed air consumption in a system, thus making an important contribution to optimizing energy efficiency. The measurements help to detect leakages that are then reported to the controller via an alarm signal. This avoids energy losses and saves money. Used as a stand-alone device or in combination with AS series maintenance units, the sensors guarantee demand-based compressed air supply.

AF1 series flow sensors constantly compare the actual values in a system with the set process values, allowing you to reliably control flow rates. Larger leakages and wear leading to higher air consumption are detected early on. Unnecessary increases in consumption become transparent and consumption costs can be allocated to the relevant consumers.

The new AF1 sensor modules detect the flow rate based on the difference in pressure between two internal measuring points. They have two PNP/NPN switch outputs each and one analog output. Users can set switching points for the two switch outputs on the basis of flow rate, air consumption, or pressure, using simple and intuitive programming. The analog output provides the flow rate value.

All of the measurable variables can be selected and shown on a backlit large-format display, and operators can switch between the usual international units.

Using the appropriate block assembly kits, the AF1 can be assembled as a stand-alone device or integrated (and even retrofit) in AS series maintenance units of all sizes.

Bosch Rexroth AG is one of the world’s leading specialists in the field of drive and control technologies. Under the Rexroth brand name, the company supplies more than 500,000 customers with tailored solutions for driving, controlling, and moving. Bosch Rexroth is a partner for Mobile Applications, Machinery Applications and Engineering, Factory Automation and Renewable Energies. The company provides customized solutions tailored to the needs and specifications of each individual market. As The Drive & Control Company, Bosch Rexroth develops, produces, and sells components and systems in over 80 countries. As part of the Bosch Group, Bosch Rexroth and its 34,900 associates generated approximately 5.1 billion euros in revenue in 2010.

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The Bosch Group is a leading global supplier of technology and services. In the areas of automotive and industrial technology, consumer goods, and building technology, some 285,000 associates generated sales of 47.3 billion euros in fiscal 2010. For 2011, the company forecasts sales of more than50 billion euros and a headcount of a good 300,000 by the end of the year. The Bosch Group comprises Robert Bosch GmbH and its more than350 subsidiaries and regional companies in over 60 countries. If its sales and service partners are included, then Bosch is represented in roughly150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. Bosch spent 3.8 billion euros for research and development in 2010, and applied for over 3,800 patents worldwide. With all its products and services, Bosch enhances the quality of life by providing solutions which are both innovative and beneficial.

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Susanne Herzlieb
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