OTT SVR 100, Operating Instructions Manual

Page 1: ...English Operating Instructions Surface Velocity Radar OTT SVR 100...

Page 2: ...We reserve the right to make technical improvements...

Page 3: ...RS 485 interface 16 6 SDI 12 commands and responses 17 6 1 Overview of standard SDI 12 commands 17 6 2 Standard commands 18 6 2 Advanced SDI 12 commands 20 7 Performing maintenance work 22 8 Repairs 2...

Page 4: ...rface 65 050 001 9 2 for temporary connection of OTT sensors to a PC using an SDI 12 or RS 485 interface including USB connecting lead USB A to USB B connector 3 m RS 232 connecting lead 97 120 371 4...

Page 5: ...e of the OTT SVR 100 with normal household waste For further information see Chapter 10 Instructions for disposal of used devices Federal Communications Commission FCC Approval This equipment has been...

Page 6: ...hift the radar sensor uses a trigonometric function to calculate the average flow velocity within the radar footprint projected onto the water surface The exact tilt angle necessary for the calculatio...

Page 7: ...ket The cable length between the radar sensor and the data logger can be up to 1000 metres depending on the wire cross section used The entire radar sensor provided it is installed as described in the...

Page 8: ...T SVR 100 installed on an auxiliary structure e g a cantilever arm The projection of the OTT SVR 100 radar footprint on the water surface is elliptical In the example shown here the water level is det...

Page 9: ...ad and temperature fluctuations Installation on or in the immediate vicinity of bridge piers is not recommended Bridge piers influence the flow velocity and normally cause back water zones and turbule...

Page 10: ...x 0 6 3 0 5 2 5 9 x 1 3 3 0 2 7 x 0 9 4 0 6 9 7 9 x 1 7 4 0 3 6 x 1 2 5 0 8 7 9 8 x 2 1 5 0 4 5 x 1 5 7 5 13 0 14 8 x 3 2 7 5 6 7 x 2 2 10 0 17 3 19 7 x 4 2 10 0 8 9 x 3 0 12 5 21 7 24 6 x 5 3 12 5 1...

Page 11: ...irst valid measured values are available around 30 seconds later Please note When using solar panels we recommend using a surge protector 5 3 Compatible cable types The connecting cable with angled co...

Page 12: ...the hexagon bolts A see Fig 10 Surface any steel construction e g cantilever arm Attachment material e g hexagon bolt M12 x 25 hexagon nut M12 washers Make a hole 13 mm in the steel construction Atta...

Page 13: ...nnecting cable upwards in a loop and secure on the housing bracket with a cable tie strain relief Attaching the radar sensor Mount the sensor in the housing bracket and slightly tighten the hexagon bo...

Page 14: ...Hexagon bolt A Hexagon bolt B Wall bracket Housing bracket Fig 10 OTT SVR 100 Installation of swivel mount 14...

Page 15: ...20 a 60 Recommended a 30 6 0 20 a 30 0 20 45 30 60 Fig 11 Adjusting the sensor tilt angle on the OTT SVR 100 15...

Page 16: ...col is designed and tested for use with OTT and Sutron data loggers For details of connecting the OTT SVR 100 to OTT netDL via the RS 485 interface see Appendix A OTT is unable to guarantee proper fun...

Page 17: ...Overview of standard SDI 12 commands a Acknowledgement active aI Send identification aAb Change sensor address Query sensor address factory setting 0 aM Start measurement aD0 Send data aR0 Continuous...

Page 18: ...value2 value3 value4 value5 value6 CR LF Send data after aM a Sensor address value1 Average flow velocity floating mean over approx 30 seconds Measured value format b eeee pbb eee m s 1 b bbbb pbbbb...

Page 19: ...lic Redundancy Check for details see aM command The number of mea sured values in the response to this command has two digits nn 06 aCC atttnn CR LF Start concurrent measurement simultaneous measureme...

Page 20: ...sponse to the aD0 command IIR filter calculation vfiltered t vcurrent t Q vfiltered t 1 1 Q Q 1 3 Set read measuring sensitivity aOAB value aOAB a value CR LF a value CR LF Set measuring sensitivity R...

Page 21: ...sponding flow direc tion Factory setting 1 Towards sensor only the OTT SVR 100 only determines flow towards the sensor 2 Away from sensor only the OTT SVR 100 only determines flow away from the sensor...

Page 22: ...vel mount set ting does not change Check that the measuring section is free of obstructions for example flotsam or overgrowing branches of trees and shrubs Remove all obstructions Caution Never open t...

Page 23: ...For further information about the return procedure please contact your local sales contact You will find the addresses of all sales partners in the internet on www ott com Please take into considerati...

Page 24: ...immediate vicinity of the radar sensor footprint Remove obstructions Sensor tilt angle in permitted range 20 60 Correct tilt angle Distance to measuring point in permitted range 1 50 m Optimise insta...

Page 25: ...1 50 m Installation angle to horizontal Recommended 30 Minimum maximum 20 60 Serial interfaces RS 232 RS 485 two wire 1200 115 200 bps Communication protocols SDI 12 via RS 485 Modbus Materials Housin...

Page 26: ...preset OTT netDL SDI 12 Master C 3 4 preset Terminal block screw terminal block on the OTT netDL to which the OTT SVR 100 is connected Slave address SDI 12 bus address Each address may only be assigne...

Page 27: ...00 Until this measurement is complete the LCD display uses the last measured value or the last instantaneous value displayed if this is more recent This is indicated by an s after the channel number s...

Page 28: ...Appendix B Wall bracket dimensions mounting hole positions all measures in mm 35 137 114 5 67 5 134 5 12 4 7 8 5 23 17 28...

Page 29: ...endix C Note on the declaration of conformity If required you can download the current version of the declaration of conformity for the OTT SVR 100 from our website as a PDF file www ott com resources...

Page 30: ...0003 unsigned word 0 15000 R mm s Average flow velocity 0004 unsigned word 0 15000 R mm s Tilt anglel 0005 unsigned word 0 360 R Internal filter type 0006 unsigned word 0 IIR filter 1 Floating mean 1...

Page 31: ...nge Factory setting Access mode Unit Bus address 0000 unsigned word 1 255 1 W Baud rate 0001 unsigned word 0 9600 1 38400 2 57600 3 115200 9600 W Bit s 1 0002 Internal filter type 0003 unsigned word 0...

Page 32: ...g cable 1 temporary power supply for the OTT SVR 100 1 See Chapter 2 Accessories How to install the OTT SVR 100 Operating Program Launch Setup SVR100 Configurator x x x exe the OTT SVR100 Con figurato...

Page 33: ...he operating program opens a new window Select the firmware file fwi and click on Open The operating program writes the new firmware to the OTT SVR 100 Please note The power supply must not be interru...

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Page 36: ...OTT Hydromet GmbH Ludwigstra e 16 87437 Kempten Deutschland Telefon 49 831 5617 0 Telefax 49 831 5617 209 info ott com www ott com Document number 63 151 001 B E 01 0418...