WorkHorse Mariner ADCP User's Guide
Contents
1. Real Time Deployment Things to remember while deploying the ADCP 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 P N 957 6169 00 April 2005 page 25 WorkHorse Mariner ADCP User s Guide 11 5 12 12 1 12 2 12 3 page 26 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 Send the Deployment Commands Use WinRiver or VmDas 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 velocit2. a 23 Deployment Checklist 2 22 i bet ger eite end e Ite deo tele ete a ble tete d 23 Prepare the ADCP for Deployment 0 ececcecceceeeeeceee cece ee eeeeaaeeeeeee enne en ren nn t nemr nnns inert rnnr nlsi 24 Deployment Software 5 ren eet o ete e eee repr eee 25 Deploy the ADCP E 25 Send the Deployment Commands sss eene ennemi ener rennen 26 12 Reviewing the Data isc E 26 12 1 Where was the Data 3 etiem epe a a a r Pre ces iPod beeen ees 26 12 2 BATATDATI CRT IBE CE 26 12 3 What iSSthe Daten ict mire rnt et Otto eile ashi Seas doesent loth Ee ter ats 26 13 AFew Principles of Operatlon erento Hte HE etar eiie iru 27 14 Technical Support iier ipee eie E Denn a erai DR RR REA ER E ced Geapestensscteulee 28 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 Figure 13 Figure 14 List of Table 1 Table 2 Table 3 Table 4 Table 5 Typical River Deployment rtr a aia aai ta ater RR 2 Mariner ADGP OVervIOW c delsdeedetedet d ee amanna iriirin OOOO 5 BeckiBox Eront View ccc ooo coo UC RO ROREM EDU LI 6 BeckiBox hear VIewW t UAR UII DI EUCH KU M CODE 7 Deck BOLTI View se tie ARA RAM RI RI RIA RI RT RUD 8 Connecting and Disconnecting the I O Cable e 9 l O Gable OVervIGWu du a leek t aed
3. 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 RD Instruments 5 1 WorkHorse Mariner ADCP User s Guide e The deck box is not designed to withstand water Use cau tion when using on decks in wet conditions e Avoid using ferro magnetic materials in the mounting fixtures or near the Workhorse Ferro magnetic materials affect the compass Setup the WorkHorse Mariner ADCP Figure 9 illustrates how to connect the WorkHorse Mariner cables on your workbench You will need a container of water large enough to submerge the WorkHorse 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 TO ADCP TO J17 I O CABLE INPUT POWER CHOOSE ONE INPUT VOLTAGE DC 20 60 VOLT I I I I I DC 12VOLT I AC 98 264 VOLT i I Pa wur weur i y d um A 7 SS Ji P se deseen _ TL e ae 4 SERIAL RS 234 28 Suto TEPPER 022 H 1 1 S FUSE 5A FUSE 10A FUSE 5A ADCP 317 UJ A LJ DECK BOX REAR VIEW OPTION FROM CHANNEL 1 J20 RS 232 or J19 RS 422 TO COMPUTER OPTIONAL A ow ee eee eee eee E
4. channel discharge Suspended sediment load estimation Plume tracking Bridge scouring Simultaneous bathymetry discharge flow structure Figure 1 Typical River Deployment RD Instruments WorkHorse Mariner ADCP User s Guide The WorkHorse Mariner ADCP can also be used in other moving vessel real time applications that take advantage of the Mariner s bottom tracking abili ties WinRiver is the most often used software package for Mariner ADCP setup river discharge data collection and data review RDI also offers the VmDas program 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 2 WorkHorse Mariner Real Time Application Guide Application Blue Water Costal and Continental Shelf Real Time deployment e Oil production platforms e Port and harbor monitoring e Current mapping e Water quality studies Vessel Mount permanent e Oceanography Costal engineering e Boundary layer studies e Cable and pipe laying e Fisheries e Circulation model studies e Plankton biomass e Seismic streamer positioning 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 Offshore oil and gas e Seismic prospecting e Exploration drilling e Field development Production P N 957 6169 00 April 2005 page
5. free download at www rdinstruments com RD Instruments 3 6 4 1 P N 957 6169 00 April 2005 Figure 8 WorkHorse Mariner ADCP User s Guide Memory Card Overview Spare Parts The following parts are included in the spare parts kit Table 3 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 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 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 page 11 WorkHorse Mariner ADCP User s Guide 4 2 4 3 page 12 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 Cove
6. is a serial data string of gyro heading pitch and roll The format of this string is PRDID xppp pp rrr rr hhh hh where p is pitch r is roll and is heading all scaled in decimal degrees AC Power Input The deck box accepts input voltages of 98 264 VAC 50 60Hz J27 This input voltage will be converted to 48 VDC This is the voltage supplied to the ADCP DC 12 Volt Input Use a 12 VDC car battery J26 when AC power is not available The deck box converts the voltage to 48 VDC This is the volt age supplied to the ADCP Use the largest rated amp hour battery as possi ble A car battery should last one to two days powering a 1200 kHz ADCP DC 20 to 50 Volt Input If you are using an external DC power supply con nected to the deck box on J25 20 to 50 VDC 3 0 A the voltage from the external power supply is sent directly to the ADCP This is useful if you want to increase higher voltage level or decrease lower voltage level the range of the ADCP The current requirement for the power supply is listed asareference Using a lesser rated power supply can cause the voltage level to drop The ADCP will draw only the current it needs e dub FUSE SA FUSE J0A FUSE GA SERIAL RS 232 J28 SYNCHRO STEPPER J22 A T5A 250V T10A 250V T5A 250V l UJ o c Figure 4 Deck Box Rear View 100 580v SER C L 75W 300W CaS 1 CHANNEL 2 CHANNEL 3 G Gies els els caon 2 lele o E je E 21 E 23 EGRE
7. on the end cap with beam 3 number on the transducer RD Instruments WorkHorse Mariner ADCP User s Guide PRESSURE SENSOR OPTIONAL URETHANE FACE THERMISTOR BEAM 3 MARK TRANSDUCER HEAD HOUSING END CAP l O CABLE CONNECTOR Figure 2 Mariner ADCP Overview 3 2 Deck Box Overview The deck Box contains all interfaces to from the ADCP computer terminal optional vessel gyrocompass and power Power Switch The power switch is a combination switch circuit breaker The Power Status LED next to the circuit breaker lights when power is ap plied to the Deck Box Reset Button Pushing the Reset button sends a break to the ADCP P N 957 6169 00 April 2005 page 5 WorkHorse Mariner ADCP User s Guide page 6 Data In Out LEDs Channel 1 In indicates data transmission from the com puter to the ADCP Channel 1 Out indicates data transmission from the ADCP to the computer Gyro Display The LCD Display shows the vessel s gyro heading NOTE The Gyro Interface is optional If you do not have a Gyro Interface board installed the LCD display will be blank Gyro Offset Controls Use the Up Down Set buttons to set the Gyro Offset for systems with the optional Gyro Interface board installed The Offset Control buttons are Up Set and Down as depicted by the upward arrow the square box and the downward arrow respective For example to set a heading offse
8. 3 WorkHorse Mariner ADCP User s Guide 3 1 page 4 System Overview The Mariner ADCP system consists of a WorkHorse Monitor ADCP with Bottom Track mode cables Deck Box Mounting Plate and software The Mariner system requires the addition of a Windows compatible computer to collect data Mariner 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 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
9. 9 Memory Gard OVeL VIGW uc D RR M UU 10 WorkHorse Mariner Connections sssse enne 13 BBilalk Command History BOX t e t e t t t t T teda 19 compass Aono ris e AAA UA A M MM M UE I UL 21 Visual Inspection before Deployment cceeeeeeeeeeeeceeeeeeeeeeeeeeeaaaeeeeeeeeeeessaaaeeeees 23 lei CHAITH B 0d iC 24 Isealcfime Doeploymient 5 eee eee ee ee eats 25 Tables WorkHorse Mariner River Application Guide ssssssssssem 2 WorkHorse Mariner Real Time Application Guide eeeeeeereeerrerrrennrrrrerrrennrreresnssnnne 3 Spare ALLS tet c exco fo com oc an Mt A RE AE ed AT mE cmo ang 10 WorkHorse Software Main Modules sssssssssssssesseeneenneenn ener 14 WorkHorse ADGP TeSts oon eee NTC DIDI UN e d has d 17 WorkHorse Mariner ADCP User s Guide HD Instruments Acoustic Doppler Solutions WorkHorse Mariner ADCP User s Guide 1 Introduction Thank you for purchasing the RD Instruments RDI Mariner WorkHorse This guide is designed to help first time WorkHorse users to set up test and deploy their ADCP This guide is designed for use with the other WorkHorse Technical Manual guides Where needed there are references to detailed information and fig ures contained in the WorkHorse Technical Manual WorkHorse Mariner deployments are most often Real Time Real Time use refers to the fact you are viewing the data as the ADCP collects it vi
10. HEB E cc of mu je 50 60HZ foow ADCP J17 ES ree of Rm Sa y P N 957 6169 00 April 2005 page 7 WorkHorse Mariner ADCP User s Guide 3 3 page 8 FILTER INTERFACE J18 22 9 lo D 7 Us il gl a lt lA Big Linge FE E o RS 232 RS 422 COMMUNICATION PCB GYRO INTERFACE PCB Figure 5 Deck Box Top View Mounting Plate Overview The Mounting Plate is a bronze plate that helps mount the transducer head to a vessel For installation instructions see the Maintenance Guide POWER SUPPLY The overall dimension of the mounting plate is 311 1 12 25 inches and the bolt hole pattern is 16 equally spaced 28 20 through holes on a 2285 75 bolt circle NOTE See the Installation Guide outline installation drawings for the exact dimensions and weights RD Instruments 3 4 P N 957 6169 00 April 2005 WorkHorse Mariner ADCP User s Guide 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 bei
11. WorkHorse Mariner ADCP User s Guide EH 9 M GG 3 H M OG HH T I a A I hb m ml 22 3 JJ 44 4 4 A I E A I a RD Instruments Acoustic Doppler Solutions P N 957 6169 00 April 2005 Table of Contents 1 Iidem 1 2 WorkHorse Mariner ADCP Applications eeeeeeeeeeeeeeeseeeeeeeeeeeeen nnne nennen nnne nnn nnt 2 3 HY ECDEel CIC 4 3 1 Mariner ADCP Overview ete iiec seas Sys eh eec dee Feb eee Leod ad ge eo it adu s as sc ee ge 4 3 2 Bie dispo seu DE 5 3 3 Mounting Plate OverView uoce rire titus sponta vail beeen PE be boeung eraa Ee Ine adita t asal dg e a shs dha dades 8 3 4 l O Gable OVerview easa ease hat eerte n e Re ER Eee ERR HT ERR RES zit avs e EET 9 3 5 Optional Flash Memory Card sssssssssseeeeeeeeene nennen nene nennen nemen nennen enne 10 3 6 spare ac cfe x C u 10 4 WorkHorse Garey i220 E 11 4 1 General Handling Guidelines cccccccececeeeeenececeeeceeeeaeeeceeeeeeeeaaeaeeeeceeeseseaaaeeeseeeceeeeaneeeeeeenanaeees 11 4 2 Assembly Guidelinas 11 oett aana a neiaa isa ea piia iat iiad Pino 11 4 3 Deployment G ideline Sisa ang a A a pel Re de ae A aS 12 5 Setup the WorkHorse Mariner ADCP 2 ccccceseeeseeeeeeeeeeeeeeeeeeaeeeeeeeenseeesseaeeeseeeseseeeseaneeeeeeene
12. XTERNAL RS 232 J28 GYROCOMPASS DATA TO COMPUTER REQUIRED FOR COMMUNICATION AND TESTING eee eet c NAVAGATI ON OPTIONAL DEVICE E TO ENSEMBLE OUT orron DEVICE lt COMPUTER Figure 9 WorkHorse Mariner Connections Serial Communication The standard communications settings for WorkHorse Mariners is RS 422 9600 baud no parity 8 data bits and 1 stop bit The Deck Box converts P N 957 6169 00 April 2005 page 13 WorkHorse Mariner ADCP User s Guide 5 2 6 1 page 14 your computer s RS 232 port to RS 422 There is no need to change the ADCP s communication setting What if the WorkHorse Does Not Respond If your WorkHorse does not respond check the serial port cables power and Deck Box If necessary refer to the Troubleshooting Guide in the WorkHorse technical manual 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 4 WorkHorse Software Main Modules Program Name Description BBTalk Windows ADCP communication program Use this program to talk to the ADCP and to run test script files BBTalk is included on the RDI Tools CD For detailed information on how to use BBTalk 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 ex
13. a a per sonal computer This data is also stored on the computer to allow for data playback and processing at a later time 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 6169 00 April 2005 page 1 WorkHorse Mariner ADCP User s Guide page 2 WorkHorse Mariner ADCP Applications The WorkHorse Mariner is designed to measure real time current profiles of coastal inshore and open ocean water current structures from temporary or permanent mounting in a vessel It gives fine along track resolution thanks to RDI s superior low noise data including bottom tracking The Mariner ADCP s small size and light weight makes hull mounting an easier process and a more reasonable expense The Deck Box is designed to team up with the vessel s DGPS input to integrate ADCP readings with precise position information WinRiver is the most often used software package for ADCP setup river discharge data collection and data review For detailed infor mation on how to use WinRiver see the WinRiver User s Guide Table 1 WorkHorse Mariner River Application Guide River stream and
14. 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 ADCP Internal Batteries If you want the ADCP to use internal battery power Sentinel Workhorse ADCP or external battery pack rather then the deck box power do the following P N 957 6169 00 April 2005 page 15 WorkHorse Mariner ADCP User s Guide a Turn OFF or disconnect all power to all ADCP system equipment b Remove the screws on the top cover of the deck box Lift the cover off c Locate the Filter Interface board see Figure 5 page 8 Locate connec tor J18 and disconnect the twisted black and white cable plugged into this connector The power from the deck box to the ADCP has now been disabled Only the batteries are powering the ADCP 7 1 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 7 2 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 t
15. e 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 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 Mariner ADCP page 13 c Start BBTalk See the RDI Tools User s Guide for assistance on using BBTalk page 18 RD Instruments 9 2 WorkHorse Mariner ADCP User s Guide 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 Workho
16. e to the proper level No special jumpers or switch settings are required to select the input voltage If more than one power source is connected to the deck box the highest voltage source will be used Although this is not recommended it will not damage the deck box AC Power The deck box accepts input voltages of 98 264 VAC 50 60Hz J27 This input voltage will be converted to 48 VDC This is the voltage supplied to the ADCP 12 VDC Car Battery Use a 12 VDC car battery J26 when AC power is not available The deck box converts the voltage to 48 VDC This is the volt age supplied to the ADCP Use the largest rated amp hour battery as possi ble A car battery should last one to two days powering a 1200 kHz ADCP DC Power Supply If you are using an external DC power supply connected to the deck box on J25 20 to 50 VDC 3 0 A the voltage from the external power supply is sent directly to the ADCP This is useful if you want to in crease higher voltage level or decrease lower voltage level the range of the ADCP The current requirement for the power supply is listed as a ref erence Using a lesser rated power supply can cause the voltage level to drop The ADCP will draw only the current it needs 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
17. ecklist 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 RD Instruments 11 3 11 4 WorkHorse Mariner ADCP User s Guide Deployment Software Real Time data collection involves a series of independent steps Using RDI s Software will ensure that the ADCP is setup correctly e Test your WorkHorse BBTalk e Plan your deployment WinRiver or VmDas e Transfer your plan into the WorkHorse and start data col lection WinRiver or VmDas e Verify data integrity WinRiver or VmDas e Display and process your data WinRiver or VmDas The WorkHorse software is designed to allow you to set up your WorkHorse to get the best possible data without having to understand and use Work Horse commands WinRiver and VmDas help you create the commands necessary to deploy the ADCP NOTE For information on how to use a Mariner in river discharge measurements see the WinRiver User s Guide For information on how to use a Mariner to collect real time data see the VmDas User s Guide Deploy the ADCP Figure 14
18. edure 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 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 18 b Using BBTalk send a Break to wake up the ADCP c On the Transfer menu click Command History In the E
19. ees 13 5 1 Serial GommiunicatlOni cotes aeee Perna eenaa SE R Ebene s Econ Eee eoi a aa IR RD Re ea Lone c Sadna 13 5 2 What if the WorkHorse Does Not Respond sssssssseeeeeen nennen enemies 13 6 SOM I II EE 14 6 1 System Requirements cere a aat Edp aea RE E HE Tet DRE sh EP ER KR ERI ERR Hd rare 14 6 2 Software Installation errori eere eee ecce aie de Free er ates Pep er ee Roche 14 7 dull T 15 7 1 Bench Top Battery Power Requirements sse enne enne nnne 16 7 2 Operation Modes p 16 Testing Your WorkhHorsoe rette triente tete iniri pain E 17 Compass Calibratlon eerie it ecrire mmm mm min 18 9 1 Preparing for Calibration oret cited ener dede ette ife gerere erede ve ede Deae ede de oed dede 18 9 2 Compass Calibration Verification ciconia etienne di eun enean n erdt 19 9 3 Compass Calibration Procedure 2 po Ue ded etoile ee cn Bde tide UTR Ree dpa REN Pe Reed 20 10 Internal Pressure SensOor eene sees a aaa E Ere ee dere euh aaam LE e ooa Ra EE RE CR xe kane oaa eoo ta Due RR RR Gus 22 10 1 Pressure Sensor Maintenance cccccccecceseceeceeeeeeeeeeaeceeeeesecaaeaeceeeeesecaaeaeceeeeeseeeneaeeeseeeeeeenaeeeess 22 11 Deployment Guide tree eee at ecce tua iere ce ch eret ee Dra pueris edu a ur
20. g the AR command if you have trouble calibrating your compass In some circumstances a defective compass calibration matrix can prevent proper calibration Se 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 11 Compass Alignment P N 957 6169 00 April 2005 page 21 WorkHorse Mariner 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 Figure 9 page 13 b Start BBTalk and wakeup the ADCP press the END key c Type AZ and press the Return key d Exit BBTalk 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 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 unpain
21. ng disconnected Stressing the end cap connector may cause the ADCP to flood Read the Maintenance guide for details on disconnecting the I O cable Figure 6 Connecting and Disconnecting the I O Cable page 9 WorkHorse Mariner ADCP User s Guide 3 5 page 10 yt 1 TA P1 P2 nm a BRN A w 5 M 2 X 1 N 4 ADCP_RXDB1 CH B RS 485 B RS 422 IN B ADCP_RXDA1 CH B RS 485 A RS 422 IN A ADCP_TXDB1 RS 232 OUT CH A RS 485B RS 422 OUT B ADCP_TXDA1 RS 232 IN CH A RS 485A RS 422 OUT A ADCP_DATACOM COMMUNICATION RETURN ADCP VDC POWER E RED 3 ADCP VDC POWER G g YEL 7 uw View A A J1 Wire Side Scale None Figure 7 I O Cable Overview Optional Flash Memory Card Memory cards are not included with the Mariner 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 WinSC and PlanADCP User s Guide NOTE The WorkHorse Mariner does not come with flash memory but has the same capacity as a WorkHorse Sentinel NOTE WinSC is not provided with WorkHorse Mariner systems but is available for
22. nter a Command box enter AF and click OK When the calibration proce dure starts choose the calibration type d Tilt the ADCP see Figure 11 page 21 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 is 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 11 page 21 Follow the on screen instructions to orient the ADCP correctly When prompted rotate the ADCP slowly 360 degrees approximately 5 de grees per second RD Instruments WorkHorse Mariner ADCP User s Guide 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 usin
23. o 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 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 page 16 RD Instruments WorkHorse Mariner 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 Figure 9 page 13 b Start the BBTalk program for help on using BB7alk see the RDI Tools User s Guide c Press F2 and run the script file TestWH rds The Test WH rds script file runs PSO PS3 PA PC2 and the PCI 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 BB7alk is running from Table 7 lists the tests BBTalk runs gives you guidelines for running the tests and tells you what the results mean Table 5 WorkHorse ADCP Tests Test Guidelines PSO Displays system parameter
24. or 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 12 Visual Inspection before Deployment P N 957 6169 00 April 2005 page 23 WorkHorse Mariner ADCP User s Guide 11 2 Prepare the ADCP for Deployment page 24 TO ADCP H TO J17 INPUT POWER cHoose ONE INPUT VOLTAGE DC 20 60 VOLT DC 12 VOLT AC 98 264 VOLT 3 VO CABLE hpa FUSE 5A 3 S 98 264 VAC INPUT to FUSE 10A FUSE 5A CHANNEL 1 CHANNEL 2 CHANNEL 3 Y i okee okee tee 42 SERIAL RS 233 J28 1 AL INPUT 12 VDC 20 60 VDC DECK BOX REAR VIEW FROM CHANNEL 1 J20 RS 232 or J19 RS 422 TO COMPUTER TO ENSEMBLE OUT inci DEVICE Figure 13 Prepare the ADCP OPTION FROM J22 TO GYRO EXTERNAL RS 232 J28 GYROCOMPASS DATA TO COMPUTER OPTIONAL Mw eee REQUIRED FOR COMMUNICATION AND TESTING eT Pe 0j ito OPTIONAL DEVICE COMPUTER Things to remember while preparing the ADCP e Use the Deployment Ch
25. port data to text or MatLab files For detailed information on how to use WinADCP see the WinADCP User s Guide Documentation CD 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 System Requirements The WorkHorse software requires the following e Windows 958 Windows 98 Windows NT 4 069 with Ser vice Pack 4 installed Windows 20006 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 6MB 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 RD Instruments WorkHorse Mariner ADCP User s Guide 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 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 T Power The Mariner deck box automatically scales the input voltag
26. r that may be worth knowing P N 957 6169 00 April 2005 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 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 s
27. r 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 provide 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 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 The WorkHorse I O cable is wet mate able not under water mate
28. rse 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 20 a Prepare the ADCP for calibration see Preparing for Calibration page 18 b Using BB Talk send a Break to 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 x Enter Command B s Cancel Figure 10 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 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 043411 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 P N 957 6169 00 April 2005 page 19 WorkHorse Mariner ADCP User s Guide 9 3 page 20 Compass Calibration Procedure The built in automated compass calibration proc
29. s 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 the transducer beam is connected and operational P N 957 6169 00 April 2005 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 Mariner 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 Werecommend 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 th
30. t for a multi rate gyro push the up or down button and set button simultaneously using two small aids such as a pencil When the desired offset is obtained release the buttons To prevent accidental re adjustment the buttons are recessed GYRO OFFSET CONTROLS POWER SWITCH DATA POWER IN our REUS RESET 0 cramer o 1 O CHANNEL 2 O O CHANNEL 3 O U GYRO DISPLAY DATA IN OUT LEDs RESET BUTTON Figure 3 Deck Box Front View ADCP J17 Connects the ADCP to the deck box Channel 1 RS 422 J19 Connects the computer s RS 422 port to the deck box Use this only if your computer has a RS422 serial port If you com puter has a RS 232 serial port standard use J20 Channel 1 RS 232 J20 Connects the computer RS 232 port to the deck box Gyro Synchro Stepper J22 Optional Gyrocompass gyro interface con nects the ship s gyro to the Deck Box The Installation Guide lists gyro re quirements Gyro Serial RS 232 J28 Supplies serial ASCII navigation data to the computer via our VmDas program See the VmDas help file for require ments This is an option for some ADCP applications When working in areas where bottom track detection is not possible you need this equipment RD Instruments WorkHorse Mariner ADCP User s Guide to remove ADCP Ship motion from the data The output from the J28 deck box connector
31. tart at 42 VDC but spend most of their useful lives within a few volts of 32 VDC page 27 WorkHorse Mariner 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 page 28 RD Instruments
32. ted 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 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 page 22 RD Instruments WorkHorse Mariner 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 Q Seal the ADCP for deployment a Install new o rings use silicone lubricant a Use fresh desiccant 2 bags inside ADCP a Visually inspect the ADCP a Check the transducer head condition a All mounting hardware installed a Transducer faces clean and free from defects a Verify compass alignment using BBTalk if necessary re calibrate a Are biofouling precautions needed a Zero pressure sens
33. y 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 P an 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 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 RD Instruments WorkHorse Mariner 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 Prime
Download Pdf Manuals
Related Search