WorkHorse Monitor ADCP User`s Guide
Contents
1. END CAP I O CABLE CONNECTOR Figure 1 Monitor ADCP Overview P N 957 6165 00 January 2001 page 5 WorkHorse Monitor ADCP User s Guide 3 2 page 6 I 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 Dm Y RETAINING STRAP s STRAIGHT OUT MOTION Figure 2 Connecting and Disconnecting the I O Cable RS 232 IN RS 422 OUT A RS 232 OUT RS 422 OUT B RS 422 INA RS 422 IN B COMMUNICATION RETURN POWER POWER Figure 3 I O Cable Overview RD Instruments 3 3 3 4 3 4 1 3 4 2 WorkHorse Monitor ADCP User s Guide 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 25 pin to gt gt pin ter aa Stee e de ci mes RS422 RDA 3 a RED 3 R 422 TDA RS422 RDB 16 ORN 2 R 422 TDB RS422 TDA 2 TEL 9 RS422 RDA RS422 TDB 14 GRN 3 R 422 RDB DATA COMMON 7 BLU 5 DATA COMMON NO Figure 4 25 pin to 9 pin RS 232 to RS 422 Converter WorkHorse Monitor Options The Monitor ca2. 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 P N 957 6165 00 January 2001 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 ADCP 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 eeu e Oil production platforms e Port and harbor monitoring e Current mapping e Water quality studies Boat Mount ee e Oceanography e Plume tracking e Boundary layer studies e Environmental surveys e Fisheries e Pla
3. tion CD see the Read This First guide 6 1 System Requirements The WorkHorse software requires the following e Windows 95 Windows 98 or Windows NT 4 0 with Service Pack 4 installed 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 a Insert the compact disc into your CD ROM drive and then follow the browser instructions on your screen If the browser does not appear complete Steps b through d page 12 RD Instruments WorkHorse Monitor ADCP User s Guide 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 6 3 Utility Software The following DOS programs on the RDI Tools CD have been provided to supplement features not yet implemented into the Windows environment RDI will incorporate these features 1n future releases These programs will be installed to the directory C Program Files Rd Instruments Utilities when you run the RDI Tools installation program Table 6 WorkHorse DOS Utility Software Program Name Description BBLIST Execu
4. 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 1n the Installation Guide for dimensions and weights I O Cable Connector Input Output I O 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 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
5. 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 P N 957 6165 00 January 2001 page 27 WorkHorse Monitor ADCP User s Guide NOTES page 28 RD Instruments
6. and data review For detailed information on how to use WinSC see the WinSC User s Guide Plan part of WinSC lets you enter known or best guess values for the various ADCP profiling parameters and shows predictions of expected results For detailed information on how to use Plan see the WinSC User s Guide Table 3 WorkHorse Self Contained Application Guide Application Blue Water Costal and Continental Shelf Autonomous Monitor using WinSC Monitor using WinSC deployment l i e Oceanography e Environmental monitoring e Energy transport e Costal engineering e Environmental monitoring e Enabling safe movement e Engineering stress determination e Measuring Power plant discharge e Circulation model studies e Protecting coastal land forms e Boundary layer studies e Detecting sewer outfall e Monitoring sensitive environments e Planning new ports Lowered Monitor using WinSC e Deep water oceanography NOTE WinSC is not provided with WorkHorse Monitor systems but is available for free download at www rdinstruments com P N 957 6165 00 January 2001 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
7. around the WorkHorse housing Start the test with the AX command and follow the instructions Place the ADCP in the same orientation as it will be deployed The WorkHorse RD Instruments 9 3 WorkHorse Monitor ADCP User s Guide can be vertical it can rest on its end cap or it can be tilted it could rest on a transducer face Whatever its tilt the tilt must remain constant as you rotate the WorkHorse When prompted rotate the WorkHorse smoothly and slowly Pay particular attention to the Overall Error 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 Double Cycle Error Largest Double plus Single Cycle Error RMS of 3rd Order and Higher Random Error opor If the overall error 1s less than 5 the compass does not require alignment You can align the compass to reduce the overall error even more 1f desired 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 pr
8. 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 saver mode If power 1s some how removed and later restored the WorkHorse simply picks up where it left off and continues to collect data using the same setup RD Instruments WorkHorse Monitor ADCP User s Guide 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 DumbTerm program for help on using DumbTerm see the RDI Tools User s Guide c Press lt F2 gt and run the script file TestWH txt The TestWH txt 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 WH RSLTS txt file will be created in the same directory that Dumb Term 1s running from Table 7 list
9. off the screw during anti fouling paint application This means that the sensor port is not fully protected from bio fouling The sensor port 1s 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 pressure sensor is filled with silicone oil Never poke a needle or other object through the copper screw while the screw is installed over the 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 January 2001 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 DumbTerm Q Seal the ADCP for deployment Q Install new o rings use silicone
10. sound is constant from the transducer to the depth cell The actual distance is proportional to the average sound speed 1f 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 12 2 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 ensemble is midway between the recorded ensemble time and the time of the next ensemble 12 3 What 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 January 2001 page 25 WorkHorse Monitor ADCP User s Guide 13 AFew 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 measurem
11. the WorkHorse slowly 360 degrees f Ifthe calibration procedure is successful 1t records the new calibration matrix to nonvolatile memory The WorkHorse will not change its ma trix unless the calibration is properly carried out g Ifthe calibration procedure is not successful return your WorkHorse to the original factory calibration by using the AR command Try using the AR command 1f you have trouble calibrating your compass In some circumstances a defective compass calibration matrix can prevent proper calibration LL i Place the Dummy Plug or small block under the end cap to make the tilt less than or equal to 20 degrees UPWARD DEPLOYMENT Ra DOWNWARD DEPLOYMENT Figure 8 Compass Alignment RD Instruments WorkHorse Monitor ADCP User s Guide 10 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 DumbTerm and wakeup the ADCP press the END key Type AZ and press the Return key d Exit DumbTerm 10 1 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
12. to withstand water Use caution when using on decks in wet conditions Avoid using ferro magnetic materials in the mounting fixtures or near the Workhorse Ferro magnetic materials affect the compass RD Instruments WorkHorse Monitor ADCP User s Guide 5 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 100 240 VAC POWER SUPPLY 50 60 Hz COMPUTER RS 232 to RS 422 mt CONVERTER qe p J IDAS t q de O CABLE TO SERIAL PORT COM1 OR COM2 Figure 6 WorkHorse Monitor Connections 5 1 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 1s 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
13. voltage is above 24 VDC the power supply will have no effect NOTE The 24 VDC AC adapter does not override the battery voltage Substitute your own power supply with a voltage of 45 to 60 VDC to override the optional 42 VDC External Battery Pack 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 24 VDC to run the WorkHorse Substitute your own power supply with a voltage of 45 to 60 VDC for deployments NOTE If you collect data using the AC adapter the profiling range is reduced NOTE Transmitted power increases or decreases depending on the input voltage Higher voltage to the ADCP within the voltage range of 20 to 60 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 WorkHorse 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 15 holds two 400 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 batteri
14. WorkHorse Monitor ADCP User s Guide rr a a gt gt ee ee 7 7 7 7 a _ a a rr ee gt gt TT y y Y a RD Instruments Acoustic Doppler Solutions P N 957 6165 00 January 2001 Table of Contents 1 IEF OGUGTHION ienaa conc DR OD DR ERAS teen DD o RP ARRAES ERES SR A RE RE RR N 1 2 WorkHorse Monitor ADCP Applications ooommomcnccccccccccccccnnonnnnnnanannnnnnnnnnnnnnnnanannnnnnnnnn nn nn nrn re rnnnananas 2 3 SIS tOATOVOIVIE Witt a aeaetuanidennaa needs 4 3 1 Mont r ADCP OI ee tee et tenes Sie oe ate te 4 3 2 OSS able OVCIV CW quis sedis cera das 6 3 3 RS 232 to RS 422 Converter OvervieW cccccccceeccceececeecessececeececsaeessaeeeseeeeseaeessaeesseeeeseueeseeesseeeeses 7 3 4 WorkHorse Monitor Options ccccccccecccceececeeceeeeeeeeeeeeseececeecesseeeesececeecesseeesseeeeseeeeseeeesseeessnesetseeees T 3 4 1 Optional External Battery Pack E E an seated EE ld 7 3 4 2 OptionalElasiy Memory Card ii anna 7 3 5 Spare AS rr ondo elites o pa 8 4 NV OLK IONS G Careca orador radares 9 4 1 General Handling Guideline S suas setts eal leet tido 9 4 2 Assembly C101 6 2 NOS eau ca acusa nee mer Ree SMR ney a TSE Reh RR eo On nen Se OR Oe E 9 4 3 Deployment Guidelines cccccesecccceseeeceececceececeuueeecauecesseuseessueeeseusesseeeessuueeessueeesseneeessatseessaaeees 10 5 Setup the WorkHorse Monitor ADCP secar cerec erre eerc anne er care
15. ata 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 by smoothly moving a compass around and near the Workhorse and its mounting frame RD Instruments WorkHorse Monitor ADCP User s Guide 11 5 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 12 Reviewing the Data 12 1 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
16. ca rena renan 11 5 1 Serial Communication cccceecccssecccesecceececaeeecaeeeeceeeceaeesseeeeseeeeseueeseasessaeesseeeeseeeeseeessaeeeseeeeeseneenens 11 5 2 What if the WorkHorse Does Not Respond occccoccncccccccoccccoccnccncnconcncnncnononnnonnnnnonnnonnnnnonnnononnnnnnnnnnnos 11 6 RD O TENGO p ce a ean oe eae wea awed dto 12 6 1 System RedguremenS ss A ee ee 12 6 2 Sofware Installation nisi a a cine ra E seca ada 12 6 3 UNI SOTO scores clio pd ile Ms O DR A en thats satel ra a My ae 13 7 POWER PR RR UR NES UERR RE RS E OR Pa AR SR RR E EE 14 7 1 A Rt DRA E Ae ene ee ere a ee ene E E RAS 14 1 2 EXC mal Battery PaK esena cute r a E a 14 7 3 Bench Top Battery Power ReEquireMents ccccceccceeceeeeceeeeeeeeseeeseeeseeeeseeeseeeseeeeaeeseeeseeeseeesaneeaes 16 7 4 Operation Modas ds 16 TESUNG COUP VV OFKEION SG inenen asno nos quase TAERE REEE T E 17 Compass C alll ato ssi E N 18 9 1 Pre paring tor C aliDratiO eea A RED aa 18 9 2 Compass Calibration Verification y Ds xd a oc Seed a E E EA 18 9 3 Compass Calibration Procedure isa ee ee eee 19 10 Internal Pressure Sens Oir ii 21 10 1 Pressure Sensor MaltenancO il il tirita de anil AD 21 11 Deployment GUId a A A A a beeradsusens 22 11 1 DeploymentEneckls ton a 22 Prepare the ADCP for Deployment q ses ssa nb na cde ddadactetlaathy eatiebeea edt eh cas dass succeeds 23 11 3 Deployment SOMWANC seseriai a a ea ON AR 23 11 4 Deploy He ADCP aera a E A 24 11 5 Send the De
17. ccessful calibration e If you 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 NOTE If you will deploy your WorkHorse looking up calibrate it looking up If you will deploy it looking down calibrate it looking down 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 b Connect the WorkHorse as shown in Setup the WorkHorse Monitor ADCP page 11 c Start Dumblerm See the Software guide for assistance on using DumbTerm 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 dis plays the results NOTE Verify the compass if you have just replaced the battery Sentinel only memory module optional for Monitors or any ferrous metals is relocated inside or
18. circuit board near the cable connectors Its settings are plainly marked on the board This user s guide assumes that you use RS422 5 2 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 January 2001 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 Description DumbTerm Windows ADCP communication program Use this program to talk to the ADCP and to run test script files DumbTerm is included on the RDI Tools CD For detailed information on how to use DumbTerm see the RDI Tools User s Guide WinADCP 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 you can export data to text or MatLab files For detailed informa tion on how to use WinADCP see the WinADCP User s Guide Documentation The Documentation CD has an Adobe Acrobat pdf elec CD tronic version of the WorkHorse Technical Manual Use the Documentation CD to search for information For detailed in formation on how to use Adobe Acrobat and the Documenta
19. e range from the ADCP to the water surface or bottom from the echo intensity data This program does not change the origi nal data It creates a text file with the estimated ranges Intended for custom ers to estimate where to cut off their data CHECKDAT Executable program that cannot be operated through the Windows environ ment CHECKAT will scan a data file for missing ensembles ensemble num ber out of order bad checksum ensembles and ensembles with bit errors If the DOS redirect command gt symbol is used then the output will be placed into a file C Code Library The C Code library has been provided to help you in the creation of your own programs These files are provided as is and in general are not sup ported Use at your own discretion The files are located in the directory C Program Files Rd Instruments Utilities C_Code P N 957 6165 00 January 2001 page 13 WorkHorse Monitor ADCP User s Guide 7 1 7 2 page 14 Power The WorkHorse Monitor ADCP requires 20 to 60 VDC to operate The standard AC Adapter runs on any standard AC power and supplies 24 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 batteries when fresh supply 42 VDC and the power supply output is 24 VDC The Workhorse will draw all power from the External Battery Pack if the battery
20. eaeeeeeaeees 2 WorkHorse Special Applications secieciecencsicncccuicais wes vnuniay sia Gado dna panda vas devedetines Sacublaws aceeeceeecuxeus ies 2 WorkHorse Self Contained Application Guide eee neo 3 nn AAPP NO rn ene nr 8 WorkHorse Software Main Modules ocoocoococccccocccccocoocooconccononnonnonnnnnnnnnnonnnononnnanonnons 12 WorkHorse DOS Utility Software ue oe 0a a ADS Aa 13 A AO TESIS across so Lo tal Gol a Gui ee a aa a a aA 17 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 playback 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
21. ent 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 1s 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 sensitivity 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
22. es successfully but keep in mind the following e Standard WorkHorse battery packs hold 28 D cell alkaline batteries with a voltage when new of approximately 42 VDC RD Instruments WorkHorse Monitor ADCP User s Guide e When the capacity of a battery pack is 50 used the voltage meas ured across the battery connector under no load conditions falls to approximately 32 35 volts However keep in mind that this voltage is not an accurate predictor of remaining 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 If your deployment is important weigh the cost of a new battery pack against the risk of lost data EXTERNAL BATTERY PACK MINIMUM 30 cm APART n TO COMPUTER DUMMY PLUG Figure 7 External Battery Pack Connection P N 957 6165 00 January 2001 page 15 WorkHorse Monitor ADCP User s Guide 7 3 7 4 page 16 Bench Top Battery Power Requirements While the WorkHorse 1s 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
23. esiccant 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 RDPs Software will ensure that the ADCP is setup correctly e Test your WorkHorse DumbTerm 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 your data The WorkHorse software is designed to allow you to set up your Work Horse to get the best possible data without having to understand and use P N 957 6165 00 January 2001 page 23 WorkHorse Monitor ADCP User s Guide 11 4 page 24 WorkHorse 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 IO CABLE fe e Waves e WinRiver e YmDas Figure 11 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 60 VDC 50 W power supply e Tilts The Workhorse corrects d
24. evious cali bration While you are turning the WorkHorse for 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 Start DumbTerm b Start the test with the AF command and choose the calibration type Place the ADCP in the same orientation as it will be deployed a e When prompted rotate the WorkHorse slowly 360 degrees e The second rotation requires the WorkHorse to be tilted on an adjacent beam Follow the on screen instructions to orient the unit correctly Tilt an upward looking WorkHorse with a block under one side of the end P N 957 6165 00 January 2001 page 19 WorkHorse Monitor ADCP User s Guide page 20 cap A 35 mm block gives you an 11 tilt When prompted rotate
25. lubricant Q Use fresh desiccant 2 bags inside ADCP Q Visually inspect the ADCP Q Check the transducer head condition Q Check the zinc anode condition High Pressure Housing only Q Check the housing paint condition High Pressure Housing only Q All mounting hardware installed Q Transducer faces clean and free from defects Q Verify compass alignment using DumbTerm if necessary re calibrate O Are biofouling precautions needed a Zero pressure sensor optional at deployment site with AZ command VISUALLY INSPECT THE ADCP URETHANE TRANSDUCER FACES REMOVE BARNACLES AND CHECK FOR CRACKS TRANSDUCER HEAD CHECK O RINGS AND MOUNTING HARDWARE ARE INSTALLED HOUSING CHECK FOR CRACKS ELECTRONICS CHECK ALL HARDWARE IS TIGHT END CAP CHECK O RINGS AND MOUNTING HARDWARE ARE INSTALLED I O CABLE CONNECTOR CONNECT I O CABLE Figure 9 Visual Inspection before Deployment page 22 RD Instruments WorkHorse Monitor ADCP User s Guide 11 2 Prepare the ADCP for Deployment 100 240 VAC POWER SUPPLY 50 60 Hz COMPUTER RS 232 to RS 422 ama CONVERTER le MAH 1 q ADCP I O CABLE TO SERIAL PORT COM1 OR COM Figure 10 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 DumbTerm Some tests will fail if the ADCP is not placed in water while the tests are being run e D
26. n 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 Optional External Battery Pack The optional External Battery Pack Figure 7 page 15 can be 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 Optional Flash Memory Card Flash memory cards see Figure 5 page 8 are available in 16 20 40 85 and 220 MB cards The internal recorder holds two cards for a maximum of 440 MB of recording space 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 P N 957 6165 00 January 2001 page 7 WorkHorse Monitor ADCP User s Guide RE A a f ee ret Ta z iia Eo 4 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 Lubrican
27. nning 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 Offshore oil nee e Seismic prospecting e Exploration drilling e Field development e Production Table 2 WorkHorse Special Applications Monitor using WinRiver Monitor using Waves 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 uses 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
28. ployment Commands ws cick cote ives sitvonolsud A A eiea a 25 12 REVIEWING DE Dala asta 25 12 1 Where Was Ne Data 2 sas ras danado ss as ties es ad DA ES 25 12 2 When Was the Data ai olaa 25 12 3 EUV VAL IS MEDA anos o sea ADS da eaten pq 25 13 A Few Principles of Operation eee serrerenreeencreecrrence ca nnen arrasa encanaa 26 14 Technical SUP DOR E ia E 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 List of Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 MONIOCADGC OVENVIC aussi etme See een neon ee erate meee eee oe atte Sa ea 5 Connecting and Disconnecting the I O Cable occoccoccoccccconccnconocnnconconccnnnnnnanonnnnnnnnnnos 6 HO Cane OVNI Wa 6 25 pin to 9 pin RS 232 to RS 422 Converter ocooccocccccccocconconcocconnoncnncnnnnnnnnnnnononnnanennnnnos 7 Memon Card OVervViE W eesse tinie a a 8 WorkHorse Monitor COnnections cccccceccecneceececcuecueceececceeeecceeceeaecuecuesaesaeseeseeeesaes 11 External Battery Pack CONNEcti0ON coccocconconconccnocconconocncononnnnncnncononnonnnnnonnnnnanenncannnos 15 Compass AQ CN eraser a E OD 20 Visual Inspection before Deployment eee ree rear aan 22 Prepare Me ADOP cr 23 Realtime DEpDoymMm EN merria E A E N 24 Tables WorkHorse Real Time Application Guide eee eeeeseeeeeeeeeeeeeseeseeseese
29. rovide a leakage 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 4 2 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 P N 957 6165 00 January 2001 page 9 WorkHorse Monitor ADCP User s Guide 4 3 page 10 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 The WorkHorse I O cable is wet mate able not under water mate able Deployment Guidelines 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
30. s the tests DumbTerm runs gives you guidelines for running the tests and tells you what the results mean Table 7 Test PSO PA PC2 PC1 WorkHorse ADCP Tests Guidelines Displays system parameters 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 Continuously updates sensor display Rotate and tilt WorkHorse and watch the readings on the display change Beam continuity test Follow instructions to rub each beam in turn to generate a noise signal the WorkHorse uses to verify the transducer beam is connected and operational P N 957 6165 00 January 2007 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 page 17 WorkHorse Monitor ADCP User s Guide 9 1 9 2 page 18 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 su
31. t 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 General Handling Guidelines 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 75 degrees C The urethane faces may be damaged Check the tempera ture indicator inside the shipping case It changes color if the temperature limit is exceeded Do not scratch or damage the O ring surfaces or grooves If scratches or damage exists they may p
32. table program that can be operated through the Windows environment This program will display binary data in tabular format as well as convert the data into an ASCII file BBBATCH Automatically converts a named binary data set to a named ASCII data set using an existing format file Use this program to convert binary files unat tended through a DOS batch file BBCONV Executable program that cannot be operated through the Windows environ ment Removes user selected data from binary files and stores the information into ASCII comma delimited format See BCONV DOC for decoder file format BBMERGE Executable program that cannot be operated through the Windows environ ment BBMERGE merges ASCII comma delimited format data described by a decoder DEC file into the raw BroadBand ADCP data file infilename result ing in an output ADCP data file called outfilename See BCONV DOC for decoder file format BBSUB Executable program that cannot be operated through the Windows environ ment BBSUB starts copying ensembles from infilename to outfilename start ing with the user specified Start and End ensemble number This is in tended to allow users to subsection binary data files SS Executable program that can be operated through the Windows environment SS allows you to quickly calculate the speed of sound in the water SURFACE Executable program that cannot be operated through the Windows environ ment Surface estimates th
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