Mr. Lau Hieng Ung, Director, Sewerage Services Department Sarawak

Making WavesWireless Communication with DataLoggers All Over the WorldKeller AG für Druckmesstechnik hasdeveloped a universal, energyoptimisedradio module with integrateddata logger. The GSM-2 remotedata transmission unit and the free PCsoftware allow you to conveniently observelevels, measurements and trendsand monitor limits from the comfort ofyour office. This applies to groundwaterlevels, wastewater levels and the fillinglevels of mobile tanks on vehicles. However,it also applies to completely differentmeasurements from appropriate sensorswith suitable output signals.The cylindrical design of the GSM-2with a diameter of just 48 mm has beenchosen so that the data logger, which”self-dials” in accordance with user requirements,can simply be placed in thetop of a normal 2-inch diameter soundingpipe that is used in groundwater measuringequipment. Installation takes a matterof seconds. The housing is designed towithstand condensation and being underwater for short periods. The GSM antennais covered with a lockable covering capmade from solid plastic. The data loggeris therefore protected from theft andvandalism when level measurements arebeing taken outdoors.Equipped with energy-efficient electronicsand a robust lithium battery (3.9V/32 Ah), the logger can send the resultsof 24 measurements to a PC at headquartersfor up to 10 years by e-mail,or transfer them to a mobile phone viaSMS. The maximum measuring speed isone measurement per minute. Two voltageinputs (0 - 2.5 V), 2 digital inputs, aBUS interface (RS 485) for operating upto 5 level sensors or optionally the SDI12interface for water analysis units makethe GSM-2 data logger a universal dataacquisition module for wide area measuringnetworks.An air pressure sensor and a temperaturesensor are already integratedin the GSM-2, especially for taking levelmeasurements using pressure sensorswith long-term stability such as the Keller30 series. The actual sensor no longerhas to be connected to the ambient airvia a capillary tube in the supply cable.The measuring accuracies that can beachieved from the difference betweenthe probe signal and the air pressuresignal are within the range of a few millimetres.The GSM2 DataManager, which is flexible,convenient and free software, takesover the key functions of a monitoring,acquisition, control and organisation unit.The DataManager acquires the measurements,allocates them, displays them ingraphical format, provides a signal whenlimits are exceeded and then stores themin a mySQL database for which no licencefee is required. Third parties can accessthe measurements using various exportand Internet functions and integratethem in their data acquisition systems.All parameterisation and monitoring ofthe individual GSM-2 data loggers is alsocarried out using the GSM2 DataManagersoftware.Microbiotics Awarded for NoteworthyProductEnvironmental Protection announced the winners of its 2011 NewProduct of the Year Award in various categories during WEFTEC2011 in Los Angeles. Bio-Microbics has been awarded a 2011 NewProduct of the Year Award in the Recycling Category for its BioBarrier®Membrane BioReactor (MBR) System for onsite water-reuse applications.A current highlight is the Signet 9900 transmitter with luminousdisplay and flexibly configurable single-channel interface to measurediverse parameters. Further innovations of GF Piping Systems are thepractical polypropylene compression fitting iJOINT for fast and easyhouse connections, the new generation of check valves type 561 and562 with a newly designed check cone, as well as a new generation ofdiaphragm valves with twice the flow thanks to optimised flow contours.The restraint MULTI/JOINT 3000 Plus fittings for water supply pipesare now also available in the dimensions DN350 and DN400 for waterpressures up to 10 bar and gas pressures up to 5 bar.A reliable piping system with a long service life and low maintenancecosts calls for optimal jointing technologies. At Aquatech GF PipingSystems demonstrates the MSA 330 and MSA 340 polyvalent electrofusiondevices, equipped with state-of-the-art technology, such as USB interfaceto transfer fusion protocols to your computer, user-friendly keypad andfor the 340 model a GPS function for seamless product traceabilityaccording to ISO 12176.Safe pipe jointing, efficient flow control and precise measurement ofparameters, such as temperature, pH, chlorine content, are indispensablefor nearly all applications in water management. Also on exhibit atAquatech were innovative solutions from GF Piping Systems for settingup and operating dependable piping systems.32 WaterMalaysia