Water/Wastewater 19
Interface Level Measurement with New Digital Sensor
The IFL 700 IQ sludge level sensor is based upon the ultrasonic measuring principle, whereby the interface level is detected via the runtime of the echo. The sensor is ideal for the sludge management at waste water treatment plants.
Compared to optical interface level systems, the continuous ultrasonic measurement provides important advantages regarding lower investment cost and cost of ownership, less maintenance and higher data availability.
The intelligent signal processing of the sensor provides the user most reliable data at any time for
more operational reliability. The sensor is able to differentiate light sludge layers and irrelevant signals (e.g. fixed objects or moving rakes) from settled sludge. Non-desired signals can be easily masked and filtered out.
Required settings are reduced to a minimum. The ease to use system swiftly provides the first measuring results as soon as the specified tank and sensor immersion depth are entered. The defined echo profile that is shown on the controller display ensures maximum transparency.
The calibration-free sensor uses a special bubble sweeper system for automatic cleaning. The smart design and high-tech materials guarantee a safe measurement with very long maintenance intervals.
The IFL 700 IQ is designed for use with the IQ SENSOR NET SYSTEM. With this system WTW (Germany), a Xylem brand, has set new standards in terms of flexibility, modularity and safeness.
For More Info, email:
26511pr@reply-direct.com
A Unique Portable System for Environmental Measurements
WTW (Germany), a Xylem brand, is a world specialist manufacturer of portable systems for environmental measurements.
WTW’s lineup includes the waterproof (IP 67) Multi Line 3410, 3420 and 3430 handheld meters for either one, two or three parameters at the user’s choice and a range of Intelligent Digital Sensors (IDS) for pH, conductivity and dissolved oxygen measurement. The pH sensors and conductivity cells are based on WTW`s proven SenTix and TetraCon models, whereas the FDO 925 optical D.O. sensor is an entirely new development.
These unique sensors convert the analogue measuring signal into a digital one before transmitting it to the meter. The digital signal is insusceptible to interference and hence allows to use cable lengths of up to 100 m even with pH sensors. In addition, particularly thin and supple cables can be used. Each IDS sensor stores a set of individual data (e.g. serial no. and, most important, its calibration record) for documentation purposes and thus minimising potential error sources and allowing to exchange the sensors between different meters at any time.
A true highlight are the new plug head versions of the IDS sensors that can be clipped to cables of different lengths at the user’s choice. They can be connected not only to the MultiLine series of handheld meters, but also to the extraordinary new MPP 910 IDS and MPP 930 IDS depth sondes. Last but not least they can be used with the inoLab 9310, 9420 and 9430 laboratory instruments, too. No other system provides such a flexibility.
For More Info, email:
26512pr@reply-direct.com
email:
253ad@reply-direct.com
www.envirotech-online.com AET August / September 2013
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