Summary of Contents for RADAC WaveGuide
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Page 1: Instruction Manual
Instruction manual WaveGuide & WaveGuide Server Radac bv Elektronicaweg 16b 2628 XG DELFT Phone: +31 15 890 32 03 Email: info@radac.nl www.radac.n l... - Page 2 Instruction manual WaveGuide + WaveGuide Server Version 4.1 2 of 30 Oct 2013...
- Page 3 Instruction manual WaveGuide + WaveGuide Server Version 4.1 3 of 30 Oct 2013...
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Page 4: Table Of Contents
Instruction manual WaveGuide + WaveGuide Server Table of Contents Introduction...................................4 Installation..................................5 The WaveGuide Sensor............................5 Cabling..................................6 The WaveGuide Server............................7 Commissioning the system............................9 Connect the WGS to a computer..........................9 Authorization.................................10 Inspect the quality of the measurements.......................11 Set sample rate and mounting height and pipe diameter..................12 Set system date/ time.............................13... -
Page 5: Introduction
Introduction The WaveGuide system is a very accurate level gauge which is compact, robust and easy to install. It is suited to measure water level, tide and waves, up to the most extreme conditions. The system consist of a radar unit and a server unit. -
Page 6: Installation
5 deg half top angle). This does not only includes horizontal objects in the beam , such as ducts, but also vertical structures as bridge pillars, quay walls, legs of an oil rig, etc. It is recommended to mount the WaveGuide at a minimum distance of 0,1x the height of the pole or qua wall. -
Page 7: Cabling
Mains supply is 24-64VDC. Supply variations of +10% and – 20% are allowed. The power rating is max 18W. Communication : Standard the WaveGuide radar communicates with the WaveGuide Server via an RS-485 connection (A, B and signal ground). The cable must be twisted pairs and shielded (eg. -
Page 8: The Waveguide Server
The WaveGuide Server The WaveGuide Server (WGS) is available in two versions an IP67 version and a rack mount version. The IP67 version is a 190 x190 mm polycarbonate box. Connectors, buttons and display are all on one side. Cables are fed via a removable cover plate. - Page 9 (laptop) computer via a cross cable. Inside the WaveGuide Server there is a PC104 computer with a Linux operating system. It takes about 2 minutes to start up and during that time the display indicates “STARTING WGS”. After start-up the this message disappears and new information is presented.
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Page 10: Commissioning The System
Connect the WGS to a computer. Inside the WaveGuide Server there is a web server available. Ones the WaveGuide Server is connected via LAN to a computer, communication with the web server is possible with any modern web browser with javascript enabled (Explorer, Mozilla, Opera etc.). -
Page 11: Authorization
Default the login name and password are both “radac”. In appendix 2 it is described how to change this. After successful authorization, the changed settings will be stored and a reboot dialog will appear. The settings will not be effective until the WaveGuide Server is rebooted. -
Page 12: Inspect The Quality Of The Measurements
The number of invalid measurements is normally around 0.1 ‰. If the communication is not OK, this indicates that the WaveGuide Server started correctly but • there is no connection with the radar. Check the cabling. -
Page 13: Set Sample Rate And Mounting Height And Pipe Diameter
Instruction manual WaveGuide + WaveGuide Server 25ms. This measurement consist of one up sweep (red curve) and one down sweep (blue curve). Depending on the sea state a region is selected where the reflection of the water surface can be expected (within the green lines). -
Page 14: Set System Date/ Time
WaveGuide Server becomes important. The WaveGuide server has a battery back up clock. So the system date and time should be more or less correct. A WaveGuide System should be able to run for years and a computer clock is far from accurate. -
Page 15: Data Distribution
Instruction manual WaveGuide + WaveGuide Server Data distribution: The WGS can transmit measured heave and calculated data ( processing option only) via its serial ports (COM2 & 3) and via its network link to several network addresses. In appendix 1 all possible information is described. To keep the user interface clear only a selection of the parameters is given. - Page 16 Instruction manual WaveGuide + WaveGuide Server Single value The format of the single value string is as follows; time=<TIME>;sensor=<SENSOR NAME>;<PARAMETER NAME>=<PARAMETER VALUE><PARAMETER UNIT>; <TIME> gives time in ms since 1 Jan 1970 (GMT of UTC of UT) • <SENSOR NAME> the name given to the sensor by the user.
- Page 17 The Belgium government (FGTI) requested one string with all required information (parameters + spectrum) per processing interval. The format is like the Radac format only with all parameters separated by semi colon (;). Also the 51 spectrum values are in this message. The “NaN” string is replaced by a “-9999” string.
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Page 18: Using The System
Instruction manual WaveGuide + WaveGuide Server Using the system The basic version of the WaveGuide System takes care of the measuring process and offers the facilities to commission the system as described in the commissioning section. Once commissioned the facilities of raw data presentation, reflection diagram, system info etc. -
Page 19: Spectra
Instruction manual WaveGuide + WaveGuide Server spectral processing. As described before only a selection is made available for presentation. The total list of parameters is given in appendix 1. Fig. 18: The screen to select a 1, 6 or 24 hour graph of a parameter and the presentation of it. -
Page 20: Data Logging
The USB disk that is connected should not be formatted by the Windows NTFS system as this format is not supported by other operating systems. The WaveGuide Server can cope with FAT32 , Ext2 and Ext3. The majority of usb disks and usb flash drives are delivered with FAT32. -
Page 21: Configure Network
(default they are both radac). Configure network At startup the WaveGuide Server will try to obtain its network settings by DHCP. If no DHCP server can be found, it will assign itself a default ip address / netmask combination. -
Page 22: Appendix1
Instruction manual WaveGuide + WaveGuide Server Appendix1: All parameters In the user interface only a selection of all the available information is given. If other or more information is needed in the user interface this can be added in the file wgs.properties (see Appendix 2) Raw data at 2 or 2.56 Hz... - Page 23 Instruction manual WaveGuide + WaveGuide Server 26 H1/50 Average of the height of the highest 1/50 of the waves 27 T1/3 Average of the period of the longest 1/3 of the periods 28 GGH, Average of the height of all waves...
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Page 24: Properties File "Wgs.properties
There are two ways to edit the file : 1. Copy the file to your own computer. Edit it and copy it back to the WaveGuide Server. Copy can be done via ftp or via a ssh connection. To edit the file use a editor and not a word processor as the latter adds all kind of extra characters to the text. - Page 25 Below a wgs.properties file is printed. You should only edit in the parts DataProcessor0, DataProcessor1 and DisplayData0 . If you want to add a parameter type its name exactly as written in Appendix1. # Properties file for the WaveGuide Server # Vaisala...
- Page 26 Instruction manual WaveGuide + WaveGuide Server WebserverRoot = WGS/webapps/radac/ # the time between 2 watchdog checks in seconds WatchDogLoopTime = 300 # the time between 2 debug prints in seconds DebugLoopTime = 0 # storage in blocks MaximumStorageTime = 144...
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Page 27: Service Via Com1
When you have the login prompt in the Konsole login as root with password “radac”. As soon as there is connection the wgs.properties file can be edited (see apppendix 2). Also other system maintenance can be performed. -
Page 28: Measuring Principle
The basis of processing is simple. The beat signal is Fourier transformed and in this spectrum (also called reflection diagram) the reflection peak is determined, see figure 1 below. Fig. 21 Reflection diagram of WaveGuide 973 up Automatic Doppler correction If the water level rises the frequency of the return signal increases due to the Doppler effect. - Page 29 Instruction manual WaveGuide + WaveGuide Server Fig. 1 Principle of Doppler correction in WaveGuide 973 up/down Version 4.1 29 of 30 Oct 2013...
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Page 30: Specifications
(e.g. 1,10, 20, 30 ) water level user defined number of seconds (e.g. 10, 60, 600 ) WaveGuide radar. The WaveGuide is based on the 973 SmartRadar LT , a level gauge for liquid storage tanks. manufactured by Enraf tankgauging (NL). Mechanical: Dimensions:...