5. ONLINE PRO APPLICATION SOFTWARE5.1 Introduction to Online Pro, Version 1.2Casella Online Pro Application Software V1.2 provides users of Casella AutomaticWeather Stations and Nomad Portable Stations, Multimet instruments and WindSpeed and Direction Systems with a powerful and versatile program for theaccumulation, processing and presentation of environmental data.Replacing the earlier Casella “Online” application, Online Pro has beencompletely rewritten to take advantage of the 32 bit facilities available fromcurrent versions of Windows and provide greater ease of use. This allows theoperator to concentrate on the data, while maintaining and extending theflexibility with which data can be gathered and displayed. Data from multiplesources can be viewed on common screens in real time, allowing easycomparison of environmental conditions.This software integrates the functions of real time data presentation,data archiving and historical presentation into an easily used package. It isdesigned to run on Windows 95TM, Windows 98TM, Windows NT 4TM, WindowsMETM and Windows 2000TM. Online Pro offers the following Display features:¤ Real time display showing prevailing conditions that provides criticalinformation for on-site decisions¤ Dynamic Data Exchange that allows real-time data to be viewed inanother program¤ Automatic switching between user specified display screens¤ Alarm display¤ Save function for screen layout¤ Windows bit map (.bmp) image presentation for displaying site maps,company logos, hazards etc¤ Multi-section bit maps, where the displayed section is dependant uponthe condition of a data input value¤ Individual site maps with dynamic wind direction overlayPlus the following features for User Convenience:¤ Standard screen layouts loaded as default¤ Password protection¤ Comprehensive on-line help¤ File loading displayed automatically¤ Convertion of on-line log files¤ Archiving of data to disk at user defined intervals¤ Dynamically changing screens including scrolling graphs and alarmwarnings¤ Production of line graphs based upon historical data¤ Tabular report presentation of data filesThe versatility of the Online Pro application enables a variety of otherparameters to be incorporated and mathematically determined from basicsensor values.¤ Linear Scaling maths functions (y = mx + c)¤ Vapour pressure and Dew Point calculation, based upon Temperatureand HumidityOnline Pro SoftwarePage 21 of 68NOMAD Portable Weather StationUsers Handbook