WorkHorse Monitor ADCP User's Guide
Contents
1. MONITOR ADCP 7 Y Es MINIMUM 30 cm APART Al eT EXTERNAL BATTERY PACR CABLE ith A BA Oy O g TO COMPUTER DUMMY PLUG Figure 7 External Battery Pack Connection page 14 RD Instruments 7 3 7 4 WorkHorse Monitor ADCP User s Guide Bench Top Battery Power Requirements While the WorkHorse is awake and responding to commands it consumes approximately 2 2 watts A single internal battery pack supplies this power level for about five days When the WorkHorse is asleep it consumes less than one mw A standard battery pack supplies sleep power for years At every opportunity the WorkHorse will sleep to conserve power while de ployed Operation Modes The WorkHorse has two modes of operation command mode and ping mode also referred to as Deployment Saver Mode Depending on what mode the ADCP is in it will go either to sleep or to resume pinging In the Command Mode Whenever you wake up your WorkHorse power dissipation increases from less than one mw to around 2 2 w If you leave the WorkHorse in command mode without sending a command for more than five minutes the Work Horse automatically goes to sleep This protects you from inadvertently depleting batteries In the Ping Mode After you send commands to the WorkHorse that tells it to start collecting data the WorkHorse goes into deployment saver2. Vent the system before opening by loosing the end cap If the ADCP flooded with batteries installed there may be gas under pressure inside the housing Do not scratch or damage the O ring surfaces or grooves If scratches or damage exists they may provide a leakage page 9 WorkHorse Monitor ADCP User s Guide 4 2 4 3 page 10 path and cause the ADCP to flood Do not risk a deploy ment with damaged O ring surfaces Do not lift or support a WorkHorse by the external I O cable The connector or cable will break Assembly Guidelines Read the Maintenance guide for details on WorkHorse re assembly Make sure the housing assembly O rings stay in their groove when you re assemble the WorkHorse Tighten the hardware as specified Loose missing stripped hard ware or damaged O rings can cause the WorkHorse transducer to flood Place a light amount of DC 111 lubricant on the end cap connector pins rubber portion only This will make it eas ier to connect or remove the I O cable and dummy plug Do not connect or disconnect the I O cable with power ap plied An exception to this is the external battery case The external battery case connector is always hot when batter ies are installed When you connect the cable with power applied you may see a small spark The connector pins may become pitted and worn Do not attach a Workhorse Monitor or Sentinel I O cable or power supply to the Workhorse Rio Grande ADCP The
3. NOTES page 28 RD Instruments
4. the transducer beam is connected and operational page 16 Results Verify the information is consistent with what you know about the setup of your system All tests must pass Satisfy yourself that the readings make sense All beams must pass RD Instruments WorkHorse Monitor ADCP User s Guide 9 Compass Calibration The main reason for compass calibration is battery replacement Each new battery carries a different magnetic signature The compass calibration al gorithm corrects for the distortions caused by the battery to give you an ac curate measurement You should be aware of the following items e We recommend against calibrating the WorkHorse while on a ship The ship s motion and magnetic fields from the hull and engine will likely prevent successful calibration e Ifyou think your mounting fixture or frame has some mag netic field or magnetic permeability calibrate the WorkHorse inside the fixture Depending on the strength and complexity of the fixture s field the calibration procedure may be able to correct it 9 1 Preparing for Calibration a Place the Workhorse on a piece of strong cardboard on top of a smooth wooden non magnetic table If a wooden table is not available place the Workhorse on the floor as far away from metal objects as possible Use the cardboard to rotate the Workhorse during calibration this way you will not scratch the Workhorse Place the ADCP in the same orien tation
5. Workhorse Mariner Monitor and Sentinel ADCPs are 24 VDC systems The Workhorse Rio Grande uses 12VDC only The WorkHorse I O cable is wet mate able not under water mate able Deployment Guidelines Read the appropriate WorkHorse User s Guide and the Soft ware User s Guides These guides have tutorials to help you learn how to use the ADCP Align the compass whenever the battery pack or recorder module is replaced or when any ferrous metals are relocated inside or around the WorkHorse housing Ferro magnetic materials affect the compass The AC power adapter is not designed to withstand water Use caution when using on decks in wet conditions RD Instruments 5 1 5 2 WorkHorse Monitor ADCP User s Guide e Avoid using ferro magnetic materials in the mounting fixtures or near the Workhorse Ferro magnetic materials affect the compass Setup the WorkHorse Monitor ADCP Figure 6 illustrates how to connect the WorkHorse cables and adapters on your workbench The internal battery plugs into a connector on the top cir cuit board You will need a container of water large enough to submerge the Work Horse s transducer head into during testing two to three inches of water is sufficient Testing the WorkHorse out of water may cause some tests to fail but causes no harm to the WorkHorse POWER SUPPLY 100 240 VAC 50 60 Hz uan I O CABLE RS 232 to N TO SERIAL PORT RS 422 COM1
6. mounted to the transducer head The numbers embossed on the edge of the transducer indicates the beam number When assembling the unit match the transducer beam number with the Beam 3 mark on the end cap End Cap The end cap holds the I O cable connector When assembling the unit match the Beam 3 mark on the end cap with beam 3 number on the transducer RD Instruments WorkHorse Monitor ADCP User s Guide PRESSURE SENSOR OPTIONAL URETHANE FACE THERMISTOR BEAM 3 MARK TRANSDUCER HEAD HOUSING END CAP I O CABLE CONNECTOR Figure 1 Monitor ADCP Overview P N 957 6165 00 April 2005 page 5 WorkHorse Monitor ADCP User s Guide 3 2 1 O Cable Overview Always remove the retaining strap on the end cap underwater connect cable and dummy plug when disconnecting them Failure to do so will break the retainer strap Do not apply any upward force on the end cap connector as the I O cable is being disconnected Stressing the end cap connector may cause the ADCP to flood Read the Maintenance guide for details on disconnecting the I O cable y Y Figure 2 Connecting and Disconnecting the I O Cable RS 232 IN CHA RS 485A RS 422 OUT A RS 232 OUT CHA RS 485B RS 422 OUT B CH B RS 485A RS 422 IN A CH B RS 485B RS 422 IN B COMMUNICATION RETURN POWER POWER Figure 3 I O Cable Overview page 6 BLK WHT U N BLU BRN GRN RED YEL a BLCWWHT a e an
7. ROM drive and then follow the browser instructions on your screen If the browser does not appear complete Steps b through d b Click the Start button and then click Run c Type lt drive gt launch For example if your CD ROM drive is drive D type d launch d Follow the browser instructions on your screen Power The WorkHorse Monitor ADCP requires 20 to 50 VDC to operate The standard AC Adapter runs on any standard AC power and supplies 48 VDC The optional External Battery Pack provides 42 VDC If both the power supply and the optional External Battery Pack and are connected the Workhorse will select the highest voltage source for use The AC Adapter input voltage is sufficient to override the internal battery voltage i e the ADCP will draw all power from the AC adapter even if the battery is installed and connected All Workhorse tests and operations work equally well using the AC power adapter or optional external battery pack AC Adapter The AC Adapter runs on any standard AC power and supplies 48 VDC to run the WorkHorse Substitute your own power supply with a voltage of 45 to 50 VDC for deployments NOTE Transmitted power increases or decreases depending on the input voltage Higher voltage to the ADCP within the voltage range of 20 to 50 VDC will increase the transmitted power The transmitted power is increased 6 DB if you double the input voltage from 24 VDC to 48 VDC For a 300kHz Wo
8. U JO ONGD RD Instruments WorkHorse Monitor ADCP User s Guide 3 3 RS 232 to RS 422 Converter Overview The adapter converts RS 232 to RS 422 This adapter includes cable is supplied with the Monitor Workhorse P2 P1 EX pD izd En 28 EM Fi EG SY OSEIS 1 VMVLLO ANACO ONRILIVAONV aos l E RS 422 25 pin to pi P2 P1 use as needed ADAPTER SIDE ADCP SIDE RS422 RDA 3 RED 3 JRS422 TDA RS422 RDB 16 ORN 2 IR8422 TDB RS422 TDA 2 YEL 9 RS422 RDA RS422 TDB 14 GRN 8 IR8422 RDB DATA COMMON 7 BLU 5 DATA COMMON Figure 4 25 pin to 9 pin RS 232 to RS 422 Converter NOTE The converter supplied with the WorkHorse is powered by the computer s COM port It may be necessary to use a different converter when very long communication lines are used maximum 1300 meters 3 4 WorkHorse Monitor Options The Monitor can also be used for self contained current profile operation by adding the optional External Battery Pack and optional flash memory Both battery capacity and memory can be increased with upgrades for longer deployments 3 4 1 Optional External Battery Pack The optional External Battery Pack Figure 7 page 14 can be
9. as it will be deployed NOTE If you will deploy your Workhorse looking up calibrate it looking up If you will deploy it looking down calibrate it looking down CAUTION If you calibrate the compass in one direction up or down and A deploy the ADCP in the opposite direction i e calibrate it in a downward position and deploy it in a upward position the compass calibration will be invalid Compass errors in excess of 5 degrees may occur b Connect the Workhorse as shown in Setup the WorkHorse Monitor ADCP page 11 c Start BBTalk See the RDI Tools User s Guide for assistance on using BBTalk P N 957 6165 00 April 2005 page 17 WorkHorse Monitor ADCP User s Guide 9 2 Compass Calibration Verification Compass calibration verification is an automated built in test that measures how well the compass is calibrated The procedure measures compass pa rameters at every 5 of rotation for a full 360 rotation When it has col lected data for all required directions the Workhorse computes and displays the results NOTE Verify the compass if you have just replaced the memory module or any ferrous metals is relocated inside or around the Workhorse housing Calibrate the compass if the batteries have been replaced see Compass Calibration Procedure page 19 a Prepare the ADCP for calibration see Preparing for Calibration page 17 b Using BBTalk send a Break to
10. mode If power is some how removed and later restored the WorkHorse simply picks up where it left off and continues to collect data using the same setup P N 957 6165 00 April 2005 page 15 WorkHorse Monitor ADCP User s Guide 8 Testing Your WorkHorse Use the following steps to test the ADCP a Interconnect and apply power to the system as described in the Setup the WorkHorse Monitor ADCP page 11 b Start the BBTalk program for help on using BBTalX see the RDI Tools User s Guide c Press lt F2 gt and run the script file TestWH rds The TestWH rds script file runs PSO PS3 PA PC2 and the PC1 tests The results of the tests will be printed to the screen and saved to the log file WH_RSLTS txt The VVH RSLTS txt file will be created in the same directory that BBTalk is running from Table 7 lists the tests BB7alk runs gives you guidelines for running the tests and tells you what the results mean Table 6 WorkHorse ADCP Tests Test Guidelines PSO Displays system parameters PA Extensive pre deployment test that tests the signal path and all major signal proc essing subsystems This test may not pass unless the WorkHorse transducer face is immersed water PC2 Continuously updates sensor display Rotate and tilt WorkHorse and watch the readings on the display change PC1 Beam continuity test Follow instructions to rub each beam in turn to generate a noise signal the WorkHorse uses to verify
11. or COM2 CONVERTER COMPUTER Figure 6 WorkHorse Monitor Connections Serial Communication The standard communications settings for WorkHorse Monitors is RS 422 9600 baud no parity 8 data bits and 1 stop bit If the serial protocol is set for RS422 and your computer expects RS232 you will need an RS232 to RS422 adapter between the WorkHorse cable and your computer You can set the WorkHorse for baud rates other than 9600 baud RS232 The WorkHorse Monitor is normally set for RS422 but 1t can be changed to RS232 by changing a switch setting The switch is in plain view on the top circuit board near the cable connectors Its settings are plainly marked on the board This user s guide assumes that you use RS422 What if the WorkHorse Does Not Respond If your WorkHorse does not respond check the serial port cables power and RS 232 to RS 422 converter If necessary refer to the Troubleshooting Guide in the WorkHorse technical manual P N 957 6165 00 April 2005 page 11 WorkHorse Monitor ADCP User s Guide 6 Software RDI has utility programs to help you set up use test and trouble shoot your WorkHorse ADCP Each program has a help file that you can print or you can view help while running the program Table 5 WorkHorse Software Main Modules Program Name BBTalk WinADCP Documentation CD Description Windows ADCP communication program Use this program to talk to the ADCP and to run test s
12. used for backup power or to provide power for self contained deployments It con sists of a housing two 400 watt hours batteries blank end cap end cap with female 7 pin connector and External Battery Pack cable P N 957 6165 00 April 2005 page 7 WorkHorse Monitor ADCP User s Guide 3 4 2 Optional Flash Memory Card Memory cards are not included with the Monitor ADCP Two PCMCIA memory card slots see Figure 5 page 8 are available with the total mem ory capacity not to exceed 2GB The PC Card recorder is located on the Digital Signal Processor DSP board inside the Workhorse s electronics To recover data the card can be removed and used in a personal computer PC or left in the Workhorse and accessed by using WinSC see the Soft ware guide NOTE The WorkHorse Monitor does not come with flash memory but has the same capacity as a WorkHorse Sentinel A a Mii gt ee ae f Ti dd Figure 5 Memory Card Overview 3 5 Spare Parts The following parts are included in the spare parts kit Table 4 Spare Parts Description Part number O ring face 2 260 Desiccant sealed bag DES3 Lubricant silicone 5 3 oz Dow Corning DC 111 Fuse 3 0 Amp 250V GMA 3A page 8 RD Instruments WorkHorse Monitor ADCP User s Guide 4 WorkHorse Care This section contains a list of items you should be aware of every time you handle use or deploy your WorkHorse Please refer to this list often 4 1 G
13. wake up the Workhorse c On the Transfer menu click Command History In the Enter a Command box enter AX and click OK Command History xi Enter Command Cancel Figure 8 BBTalk Command History Box d When prompted rotate the Workhorse slowly 360 degrees approxi mately 5 degrees per second Pay particular attention to the Overall Er ror For example HEADING ERROR ESTIMATE FOR THE CURRENT COMPASS CALIBRATION OVERALL ERROR Peak Double Single Cycle Error should be lt 5 1 55 DETAILED ERROR SUMMARY Single Cycle Error 1 54 Double Cycle Error 0 07 Largest Double plus Single Cycle Error 1 61 RMS of 3rd Order and Higher Random Error 05314 If the overall error is less than 2 the compass does not require alignment You can align the compass to reduce the overall error even more if de sired page 18 RD Instruments 9 3 WorkHorse Monitor ADCP User s Guide Compass Calibration Procedure The built in automated compass calibration procedure is similar to the alignment verification but requires three rotations instead of one The Workhorse uses the first two rotations to compute a new calibration matrix and the third to verify the calibration It will not accept the new matrix unless the calibration was carried out properly and it asks you to verify that you want to use the new calibration if it is not as good as the previous cali bration While you are turning the Workhorse for
14. your data The RDI software is designed to allow you to set up your WorkHorse to get the best possible data without having to understand and use WorkHorse P N 957 6165 00 April 2005 page 23 WorkHorse Monitor ADCP User s Guide 11 4 page 24 commands VmDas WinRiver and Waves help you create the commands necessary to deploy the ADCP NOTE Refer to the VmDas Waves and WinRiver Guides for information on how to use these programs Deploy the ADCP I O CABLE e Waves e WinRiver e VmDas Figure 12 Real Time Deployment Things to remember while deploying the ADCP e For real time data collection especially over long cables you should use a 48 to 50 VDC 50 W power supply e Tilts The Workhorse corrects data for tilts as large as 15 but tilts reduce the effective range and increase the depth of surface contamination e Anti fouling paint You are free to use any anti fouling paint or other anti fouling material you wish over any surface of the Workhorse However you should consider the following 1 Ensure that your coating can be used safely on plastic in general and polyurethane specifically 2 Apply it thinly and evenly to the transducer faces 3 Poorly applied coatings on the transducer could adversely affect instrument performance e Magnetic material Keep the Workhorse s compass away from magnetic material when you deploy the instrument Check for magnetic fields
15. CP setup real time data collection and data review For detailed information on how to use VmDas see the VmDas User s Guide Table 1 WorkHorse Real Time Application Guide Application Blue Water Costal and Continental Shelf Real Time deployment E E e Oil production platforms e Port and harbor monitoring e Current mapping e Water quality studies Boat Mount portable e Oceanography e Plume tracking e Boundary layer studies e Environmental surveys e Fisheries e Planning new ports e Plankton biomass e Current mapping Towed e Towed fish positioning e Towed fish positioning e Boundary layer studies e Water quality studies e Circulation model studies Onshore cl JE da e Seismic prospecting e Exploration drilling e Field development e Production Table 2 WorkHorse Special Applications e River stream and channel discharge e Coastal protection and engineering e Suspended sediment load estimation e Port design and operation e Plume tracking e Environmental monitoring e Bridge scouring e Shipping safety e Simultaneous bathymetry discharge flow structure page 2 RD Instruments WorkHorse Monitor ADCP User s Guide NOTE For information on how to use a Monitor in river discharge measurements see the WinRiver User s Guide For information on how to use a Monitor to monitor waves see the Waves User s Guide The WorkHorse Monitor ADCP can be used as a fully self contained sys tem This means that it use
16. OUSING CHECK FOR CRACKS ELECTRONICS CHECK ALL HARDWARE IS TIGHT END CAP CHECK O RINGS AND MOUNTING HARDWARE ARE INSTALLED VO CABLE CONNECTOR CONNECT I O CABLE Visual Inspection before Deployment RD Instruments WorkHorse Monitor ADCP User s Guide 11 2 Prepare the ADCP for Deployment POWER SUPPLY 100 240 VAC 01 50 60 Hz i I O CABLE RS 232 to TO SERIAL PORT RS 422 COM1 or COM2 CONVERTER COMPUTER Figure 11 Prepare the ADCP Things to remember while preparing the ADCP e Use the Deployment Checklist to verify that the ADCP is ready for the deployment e Test the ADCP using BBTalk Some tests will fail if the ADCP is not placed in water while the tests are being run e Desiccant lasts a year at specified WorkHorse deployment depths and temperatures Remember that desiccant rapidly absorbs moisture from normal room air Replace the desic cant whenever the WorkHorse housing or end cap is re moved e Verify the compass calibration 11 3 Deployment Software Real Time data collection involves a series of independent steps Using RDP s Software will ensure that the ADCP is setup correctly e Test your WorkHorse BBTalk e Plan your deployment see WorkHorse Monitor ADCP Ap plications page 2 for what software program to use e Transfer your plan into the WorkHorse and start data col lection e Verify data integrity e Display and process
17. WorkHorse Monitor ADCP User s Guide o aE a I a a I al _ _c2h cs es es A TT TE El J RD Instruments Acoustic Doppler Solutions P N 957 6165 00 April 2005 Table of Contents 1 ii A mmi m smttsmmmitaic ii cvs sueaeadeene dundee Suc cncaudeansenseas azucnecestevansleeenda anv aeceusuiee 1 2 WorkHorse Monitor ADCP Applications cooomomoocccccnnnnnnnnnoncccnnnnccnnnnnnnancnnnnnnnnnnnnnnncn cnn nn nn rnannnnenens 2 3 System OVEr VIEW ccoo de daniitedai a macinas 4 3 1 Monitor ADCP Overview cio a detecta ree ete dle 4 3 2 I O Cable Overvi We oca sim enti eina ta i estes pa intenti tenia ee els 6 3 3 RS 232 to RS 422 Converter OVErVieW eee eccceceeeeeeeeneeeeeeeeeeeeseneeeeeeaaeeeeeeeaeeesaeeeesenaeeeeeeeeeeesnaeeeeneas 7 3 4 WorkHorse Monitor Options 22 issesceiesds gcics castes it ita 7 3 4 1 Optional External Battery Pack 2 2 c cccesccccecesceecee sedan decoededdneebeeedesentesboebdesdeceedesdeddeesbieedendedeessdecentes 7 3 4 2 Optional Flash Memory Card sssri niseni ene area no non crono cnn ran nn rn EE EAN EAN rn rr nan nn e Eaa AERE 8 3 5 Spare Parts ici id di 8 4 WorkHorse Gare ns ici A A 9 4 1 General Handling Guidelin s sriain oinp eoriet piadar aaga ta laicas 9 4 2 Assembly Guidelines cto Ei A Re a TA 10 4 3 Deployment Guideline cccececcecce cece ceeeeeae cece eee eeaaaeee cess ca eaaaaaeaeceeeeesacsaea
18. ble is midway between the recorded ensemble time and the time of the next ensemble VVhat is the Data The WorkHorse records velocity data in units of mm s Calibration depends on how well the WorkHorse knew the speed of sound which it computed based on its measured temperature and the salinity value it was given A salinity error of 5 ppt introduces less than 0 5 velocity error P N 957 6165 00 April 2005 page 25 WorkHorse Monitor ADCP User s Guide 13 A Few Principles of Operation Consult RDI s Primer ADCP Principles of Operation a Practical Primer Second Edition for BroadBand ADCPs to learn more about WorkHorse principles of operation The following are a few points from the Primer that may be worth knowing page 26 Horizontal velocity measurement accuracy is unaffected by vertical stratification Stratification has negligible affect on the ability of the WorkHorse to penetrate through the water concentration of suspended particles is the main factor influencing profiling range WorkHorse measurements are automatically corrected for tilts up to 20 In addition to correcting for the beam point ing angles the WorkHorse maps depth cells to other cells at the same depth If you want to make measurements near the surface from a bottom mounted WorkHorse you should minimize the tilt Depth cells are most sensitive to velocities at the center of the depth cell and less sensitive at the top and bottom This sen
19. by smoothly moving a compass around and near the Workhorse and its mounting frame RD Instruments 11 5 12 12 1 12 2 12 3 WorkHorse Monitor ADCP User s Guide Send the Deployment Commands Use VmDas Waves or WinRiver see the respective User s Guides to send the commands to the ADCP Things to remember while deploying the ADCP e Ping beeps Whenever the Workhorse pings an internal beeper makes an audible beep The beep consumes negligi ble energy and tells you the Workhorse is pinging Reviewing the Data Where was the Data The quickest way to find out the depth of each depth cell is to display your recorded data using WinADCP The velocity display tells you the distance to the center of each cell The computed distance assumes that the speed of sound is constant from the transducer to the depth cell The actual distance is proportional to the average sound speed if the average sound speed is 1 less than the sound speed at the transducer the distance to the depth cell is 1 less than the displayed distance When was the Data The time recorded with each data record is the time of the beginning of the first ping of the ensemble Plan sets the ping interval so pings occur uni formly across the ensemble interval as opposed to putting all the pings at the beginning of the interval It leaves a few seconds at the end of each ensemble to allow time for data recording Hence the average time of the ensem
20. cript files BBTalk is included on the RDI Tools CD For detailed information on how to use BBTalk see the RDI Tools User s Guide Gives users a visual display of the entire set of data You can zoom in on a portion of the data for closer analysis and export data to text or MatLab files For detailed information on how to use WinADCP see the WinADCP User s Guide The Documentation CD has an Adobe Acrobat pdf electronic version of the WorkHorse Technical Manual Use the Documenta tion CD to search for information For detailed information on how to use Adobe Acrobat and the Documentation CD see the Read This First guide NOTE See WorkHorse Monitor ADCP Applications page 2 to see what software package to use for collecting data 6 1 System Requirements The WorkHorse software requires the following e Windows 95 Windows 98 Windows NT 4 0 with Ser vice Pack 4 installed Windows 2000 or Windows XP e Pentium class PC 233 MHz 350 MHz or higher recom mended e 32 megabytes of RAM 64 MB RAM recommended e 6 MB Free Disk Space 20 MB recommended e One Serial Port two High Speed UART Serial Ports recom mended e Minimum display resolution of 800 x 600 256 color 1024 x 768 recommended 6 2 Software Installation To install the WorkHorse software do the following page 12 RD Instruments 7 1 7 2 WorkHorse Monitor ADCP User s Guide a Insert the compact disc into your CD
21. ded with WorkHorse Monitor systems but is available for free download at www rdinstruments com P N 957 6165 00 April 2005 page 3 WorkHorse Monitor ADCP User s Guide 3 1 page 4 System Overview The Monitor ADCP system consists of an ADCP cables RS 232 to RS 422 converter and software They only require the addition of a Windows compatible computer to collect data The Monitor can also be used for self contained current profile operation by adding the external battery case and flash memory Both battery capacity and memory can be increased with upgrades for longer deployments Monitor ADCP Overview The transducer assembly contains the transducer ceramics and electronics Standard acoustic frequencies are 300 600 and 1200kHz See the outline drawings in the Installation Guide for dimensions and weights I O Cable Connector Input Output 1 0 cable connects the WorkHorse ADCP to the computer Beam 3 Mark The Beam 3 mark shows the location of Beam 3 Forward Urethane Face The urethane face covers the transducer ceramics Never set the transducer on a hard surface The urethane face may be damaged Housing The standard WorkHorse housing allows deployment depths to 200 meters Thermistor The Thermistor measures the water temperature Pressure Sensor The Optional pressure sensor measures water pressure depth Transducer Head The WorkHorse electronics and transducer ceramics are
22. eceeesesaeeneaeeeeeeessueeeeeeeess 10 5 Setup the WorkHorse Monitor ADCP ccceceeeeeeeeeeee ener ee eeeseeeeee seer eeeeeeseeaneeseeeseseesseaeeeseeeeneees 11 5 1 Serial Communication comio A EL venue ve Ms ane aiaia sere 11 5 2 What if the WorkHorse Does Not RESPOnd eee ceeeeneeeeeeeeeeeeeneeeeeeaeeeeeneeeeeeaeeeseeaaeeeeneeeeeeenaeeeeeeaas 11 6 SOMWANC A A ER 12 6 1 system Requires c 12 6 2 Sortvvare Installationieiiiionissi ti se isa 12 7 O O 13 7 1 AC Adapter ir tadas 13 7 2 External Battery Pack cnica aladas 13 7 3 Bench Top Battery Power Requirements ooooccccccccccoccccoconcccncconnnononoconnnnnnnonnnncnnnnnnnnnnn nn cnn rnnnnannnnnnnn 15 7 4 Operation Modest deco 15 Testing Your WorkHOrsSE oicoomiocociisicen ici aaa 16 Compass Calibration ios 9 1 Preparing for Calibration 9 2 Compass Calibration Verification s s s pee ei aeai iaeoa 18 9 3 Compass Calibration Procedure ocoiccicnnionn cc e 19 10 Internal Pressure Sensor iii A A iia 21 10 1 Pressure Sensor Maintenance ccccccceceececeeeeeeeeeeeceeaeeeeeeeseceaeaeeeeeeeseceaaeeeeeeeseseccaeeeeeeeeeeeenieeeees 21 11 Deployment Guide eeiieiieiii isttmiti Y7 m simeitaeiiimintenimsimit rie tina 22 Deployment ChecxliSt 2 eieceiesa ie sec sae A A a inie 22 Prepare the ADCP for Deployment 0 ececcecceceeeeeeeecee cece ee eeeeeaaeeeeeeeeeseaaeaeeeeeeesecaeaeeeeeeeseeeeaeeeeees 23 11 3 Deployment Somwares riii catara
23. eneral Handling Guidelines P N 957 6165 00 April 2005 Never set the transducer on a hard or rough surface The urethane faces may be damaged Always remove the retaining strap on the end cap underwa ter connect cable and dummy plug when disconnecting them Failure to do so will break the retainer strap Do not apply any upward force on the end cap connector as the I O cable is being disconnected Stressing the end cap connector may cause the ADCP to flood Read the Main tenance guide for details on disconnecting the I O cable Do not expose the transducer faces to prolonged sunlight The urethane faces may develop cracks Cover the trans ducer faces on the Workhorse if it will be exposed to sun light Do not expose the I O connector to prolonged sunlight The plastic may become brittle Cover the connector on the Workhorse if it will be exposed to sunlight Do not store the ADCP in temperatures over 60 degrees C with the batteries removed The urethane faces may be damaged Check the temperature indicator inside the ship ping case It changes color if the temperature limit is ex ceeded Store batteries in a cool dry location 0 to 21 degrees C If the batteries are installed in the ADCP do not store the ADCP in temperatures over 21 degrees C Do not store batteries inside the ADCP for extended periods The batteries may leak Use batteries within one year Batteries stored for more than 12 months should NEVER be used
24. layback and processing at a later time Typically deployments are considered to be Self Contained when the ADCP is remotely deployed and powered using the optional External Bat tery Pack or from shore When power is provided from shore the deploy ment is still considered Self Contained but this quick reference guide may not consider all of the possibilities of this application NOTE When you receive your WorkHorse look for a set up card that shows all of the pieces you should have in your box If anything is missing or damaged contact RDI immediately NOTE When an addition or correction to the manual is needed an Interim Change Notice ICN will be posted to our web site on the Customer Service page www rdinstrument com Please check our web site often P N 957 6165 00 April 2005 page 1 WorkHorse Monitor ADCP User s Guide 2 WorkHorse Monitor ADCP Applications The WorkHorse Monitor ADCP is the direct reading version of RDI s Workhorse Sentinel ADCP The Monitor ADCP is usually bottom frame mounted and hard wired back to shore to give real time monitoring of coastal currents This makes it a favorite for deployment in high volume traffic regions in ports where it is an ideal component of a Vessel Traffic Monitoring System When considering real time applications RDI offers you choices in software packages that are intended to directly meet your needs VmDas is the most often used software package for AD
25. ment cccceeeeeeeeeeeeeeeeeeeeeeeeeeeeaaaeeeeeeeeeeeeeaaaaeeees 22 Pra MADERA oO PE EEES EA E e AS te de 23 Reak rime Deploymente ies ae ee is 24 Tables WorkHorse Real Time Application Guide cceeeeeeeeeeeceeceeeeeeeeeeeecaeaaeeeeeeeeesaaaaeees 2 WorkHorse Special Applications ccccececeeeeeeceeeceeeeeeeeeeeeaaaeeeeeeeeeeeeeaaaaeeeseeeeeeeaaaaeees 2 WorkHorse Self Contained Application Guide 0 ccccccccceeeeeeeeeeeeeeeeaeeeeeeeeeeeeesaaaeeees 3 Spare Parts asi o O a o RITO Cn ce 8 WorkHorse Software Main Modules ccecccecceeeeeeeeeeeeeeceaaeeeeeeeeeeeesaaaaeeeeeeeeeeenaas 12 Workklorse ADEP Tests o EE ETE dE da 16 WorkHorse Monitor ADCP User s Guide RD Instruments Acoustic Doppler Solutions WorkHorse Monitor ADCP User s Guide 1 Introduction Thank you for purchasing the RD Instruments RDI WorkHorse This booklet is designed to help first time WorkHorse users to set up test and deploy their ADCP This booklet is designed for use with the other WorkHorse Technical Man ual books Where needed there are references to detailed information and figures contained in the WorkHorse Technical Manual WorkHorse Monitor deployments are most often Real Time but can be Self Contained Real Time use refers to the fact you are viewing the data as the ADCP collects it via a personal computer This data is also stored on the computer to allow for data p
26. rkHorse ADCP each additional DB will result in an increase in range of one default depth cell External Battery Pack The optional External Battery Pack see Figure 7 page 14 holds two 450 watt hours Wh batteries To avoid affecting the compass place the exter nal battery case at least 30 cm away from the Monitor WorkHorse Because many deployments will use only a fraction of the capacity of a sin gle battery pack you may wish to reuse your battery packs With experi ence you should be able to reuse batteries successfully but keep in mind the following P N 957 6165 00 April 2005 page 13 WorkHorse Monitor ADCP User s Guide e Standard WorkHorse battery packs hold 28 D cell alkaline batteries with a voltage when new of approximately 42 VDC e When the capacity of a battery pack is 50 used the voltage measured across the battery connector under no load condi tions falls to approximately 32 35 volts However keep in mind that this voltage is not an accurate predictor of remain ing capacity e Batteries should be replaced when the voltage falls below 30 VDC measured across the battery connector under no load conditions e Battery packs differ from one to another e Store batteries in a cool dry location 0 to 21 degrees C e Do not store batteries inside the ADCP for extended periods The batteries may leak e Use batteries within one year shelf life EXTERNAL BATTERY PACK a JUS
27. s the center point of the rotation e When prompted rotate the ADCP slowly 360 degrees approximately 5 degrees per second f The second rotation requires the ADCP to be tilted 15 degrees in another direction than from the first rotation see Figure 9 page 20 Follow the on screen instructions to orient the ADCP correctly When prompted rotate the ADCP slowly 360 degrees approximately 5 degrees per sec ond P N 957 6165 00 April 2005 page 19 WorkHorse Monitor ADCP User s Guide page 20 g The third rotation requires the ADCP to be tilted 15 degrees in another direction than from the first and second rotations Follow the on screen instructions to orient the ADCP correctly h If the calibration procedure is successful it records the new calibration matrix to nonvolatile memory The ADCP will not change its matrix unless the calibration is properly carried out i Ifthe calibration procedure is not successful return your ADCP to the original factory calibration by using the AR command Try using the AR command if you have trouble calibrating your compass In some circumstances a defective compass calibration matrix can prevent proper calibration SP Spin 90 degrees Tilt gt 10 degrees Place the Dummy Plug or small block under the end cap to make the tilt less than or equal to 20 degrees UPWARD DEPLOYMENT Spin 90 degrees i DOWNWARD DEPLOYMENT Figure 9 Compass Alignment RD In
28. s the optional external battery case for power and internal recorder with optional flash memory for the storage of all data that you have set it up to collect Using the optional external battery and recorder the WorkHorse Monitor can be used for several month autono mous current profile deployments from temporary or permanent mounting in the ocean near shore harbors and lakes WinSC 1s the software package for self contained ADCP setup data collec tion and data review For detailed information on how to use WinSC see the WinSC and PlanADCP User s Guide PlanADCP part of WinSC lets you enter known or best guess values for the various ADCP profiling pa rameters and shows predictions of expected results For detailed informa tion on how to use PlanADCP see the WinSC and PlanADCP User s Guide Table 3 WorkHorse Self Contained Application Guide Costal and Continental Shelf Application Blue Water Autonomous Monitor using WinSC deployment e Oceanography e Energy transport e Environmental monitoring e Engineering stress determination e Circulation model studies e Boundary layer studies Lowered Monitor using WinSC e Deep water oceanography Monitor using WinSC Environmental monitoring Costal engineering Enabling safe movement Measuring Power plant discharge Protecting coastal land forms Detecting sewer outfall Monitoring sensitive environments Planning new ports NOTE WinSC is not provi
29. sitivity is reflected by what we call a triangular weight ing function The details of this weighting function are rarely important for interpretation and use of your data The actual maximum range can be different from the range predicted in Plan Plan corrects for range variations caused by temperature and salinity but it assumes typical scattering conditions Weak backscatter can sometimes reduce range by a factor of two or more In self contained deployments the maximum profiling range decreases with time as the battery voltage falls This is be cause transmit power depends on battery voltage Transmit power is optimized for about 32 volts RDI s alkaline battery packs start at 42 VDC but spend most of their useful lives within a few volts of 32 VDC RD Instruments WorkHorse Monitor ADCP User s Guide 14 Technical Support If you have technical problems with your instrument contact our field ser vice group in any of the following ways RD Instruments RD Instruments Europe 9855 Businesspark Ave 5 Avenue Hector Pintus San Diego California 92131 06610 La Gaude France 858 693 1178 33 0 492 110 930 FAX 858 695 1459 33 0 492 110 931 Sales rdi rdinstruments com rdi rdieurope com Field Service rdifs rdinstruments com rdifs rdieurope com Web www rdinstruments com After Hours Emergency Support 1 858 578 0781 P N 957 6165 00 April 2005 page 27 WorkHorse Monitor ADCP User s Guide
30. struments 10 10 1 WorkHorse Monitor ADCP User s Guide Internal Pressure Sensor If you have the optional pressure sensor installed in your ADCP use the AZ command to zero out the pressure sensor at the deployment site a Connect and apply power to the system as described in Setup the WorkHorse Monitor ADCP page 11 b Start BBTalk and wakeup the ADCP press the END key c Type AZ and press the Return key d Exit BBTalk Pressure Sensor Maintenance In order to read the water pressure depth water must be able to flow through the copper screw on the pressure sensor Antifoulant paint will block the sensor s port a small hole that is drilled through the copper screw You should tape off the screw during anti fouling paint application This means that the sensor port is not fully protected from bio fouling The sensor port is surrounded by the antifouling paint but bio fouling may build up on the screw and eventually clog the sensor port However most organ isms do not seem to find the small amount of unpainted surface attractive If it is logistically possible to periodically inspect clean the pressure sensor screw it is highly recommended This tradeoff situation must be analyzed for individual deployments Unfortunately the location of the deployment site usually dictates action in this regard NOTE The pressure sensor is optional It may not be included on your system CAUTION The press
31. tas 23 11 4 Deploy the AD GP etat EN E E 24 11 5 Send the Deployment Commands cocccococccococononononcnnnonononnnononcnnno nn nr non nn nn nn rr rra rra 25 12 Reviewing the Data iii iia e rn cin 25 12 1 Where was the Data i is dicie ti dd ad 25 12 2 When EEA E Ee A E A A E li ia 25 12 3 What is the Data iii ee a e LE 25 13 A Feu Principles of Operation icc cicicccc cet ects ceiescee anonanse inaari ne atta aaaea een leegedeeenseqnenteeeeveneepegnennde 26 14 TECHNICAL SUPPONt r ra a r rr a aE S a a a Eer ra a aa aa aa aa A a a aa ae a aaa A AA a Kaaa aiaa 27 List of Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 List of Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Monitor ADCP Overview 0 ccceeccccceeeeeeeeeeaeeeeeeeeeeeeeaaaaaaeeeeeeeeseaaaaaeeseeeeeeeaaaeeeeeeees 5 Connecting and Disconnecting the I O Cable iii 6 LOCAS DI SIS CES IES ESC IOS IDE 6 25 pin to 9 pin RS 232 to RS 422 Converter cccccccceeeeeecceeeeeeeeeeeeeeeeaeeeeeeeeeeeeesaaaeeees 7 Memory Card IONE DON Lara ts Pedret UE CE 8 WorkHorse Monitor Connections cccceeeeeeeeeee eee eeeeeeeeeeeeceaeeeeeeeeeeeeeaaaaeeeeeeeeeeeaas 11 External Battery Pack Connection 14 BBialk Command HIStory BOK i e a del 18 COMpass AMO MENE Le CA OO CAP OO CARA OI PARA OI PARA CARA PARA OA PARA OA Pd DEE 20 Visual Inspection before Deploy
32. the two calibration rota tions the Workhorse checks the quality of the previous calibration and dis plays the results It compares these results with the results of the third cali bration rotation There are two compass calibrations to choose from one only corrects for hard iron while the other corrects for both hard and soft iron characteristics for materials rotating with the ADCP Hard iron effects are related to resid ual magnetic fields and cause single cycle errors while soft iron effects are related to magnetic permeability that distorts the earth s magnetic field and causes double cycle errors In general the hard iron calibration is recom mended because the effect of hard iron dominates soft iron If a large dou ble cycle error exists then use the combined hard and soft iron calibration a Prepare the ADCP for calibration see Preparing for Calibration page 17 b Using BBTalk send a Break to wake up the ADCP c On the Transfer menu click Command History In the Enter a Command box enter AF and click OK When the calibration proce dure starts choose the calibration type d Tilt the ADCP see Figure 9 page 20 Tilt an upward looking Work horse with a block under one side of the end cap A 35 mm block will give you an 11 degree tilt Check the on screen instructions to see if the orientation is OK Adjust as necessary NOTE The tilts must remain constant during the rotations The transducer beam i
33. ure sensor is filled with silicone oil Never poke a needle or other object through the copper screw while the screw is installed over the A pressure sensor You will perforate the sensor causing it to fail Do not remove the cover disc or attempt to clean the surface of the pressure sensor The diaphragm is very thin and easy to damage Do not remove the pressure sensor It is not field replaceable P N 957 6165 00 April 2005 page 21 WorkHorse Monitor ADCP User s Guide 11 Deployment Guide Use the following steps and the Quick Reference card to setup the Work Horse for a deployment 11 1 Deployment Checklist a Test the ADCP using BBTalk a Visually inspect the ADCP Q Seal the ADCP for deployment a Install new o rings use silicone lubricant a Use fresh desiccant 2 bags inside ADCP a Check the transducer head condition a Check the zinc anode condition High Pressure Housing only a Check the housing paint condition High Pressure Housing only Verify compass alignment using BBTalk if necessary re calibrate a All mounting hardware installed a Transducer faces clean and free from defects a a Are biofouling precautions needed a Zero pressure sensor optional at deployment site vvith AZ command Figure 10 page 22 VISUALLY INSPECT THE ADCP URETHANE TRANSDUCER FACES REMOVE BARNACLES AND CHECR FOR CRACRS TRANSDUCER HEAD CHECR O RINGS AND MOUNTING HARDWARE ARE INSTALLED H
Download Pdf Manuals
Related Search