Channel Master Horizontal ADCP Operation Manual Click http://www.rdinstruments.com/smartlink/cm/index.
Table of Contents 1 Introduction....................................................................................................................................... 1 1.1 1.2 1.3 2 Channel Master Applications ..............................................................................................................1 Getting Started....................................................................................................................................2 Conventions Used in Manuals ........
9.2 9.3 10 Orientation and Tilt............................................................................................................................44 Installing the Channel Master on Site ...............................................................................................46 Channel Master Commands .......................................................................................................... 48 10.1 10.1.1 10.1.2 10.2 10.2.1 10.3 10.3.1 10.4 10.4.1 10.5 10.5.1 10.5.
10.8 10.8.1 10.9 10.9.1 10.10 10.10.1 10.10.2 10.11 10.11.1 11 Channel Master PD0 Output Data Format .................................................................................... 96 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 11.10 11.11 12 14 Header Data Format .........................................................................................................................98 Fixed Leader Data Format .....................................................................................
15 Specifications ............................................................................................................................... 132 15.1 15.2 Outline Installation Drawings........................................................................................................... 134 Mounting Plate Drawing .................................................................................................................. 137 16 Technical Support ............................................
List of Tables Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table 1: 2: 3: 4: 5: 6: 7: 8: 9: 10: 11: 12: 13: 14: 15: 16: 17: 18: 19: 20: 21: 22: 23: 24: 25: 26: 27: 28: 29: 30: 31: 32: 33: 34: 35: 36: 37: 38: Channel Master Application Guide ..................................................................................
NOTES
Channel Master Operation Manual TELEDYNE RD INSTRUM ENTS A Teledyne Technologies Company Channel Master Operation Manual 1 Introduction Thank you for purchasing the RD Instruments (RDI) Channel Master Horizontal Acoustic Doppler Current Profiler. Channel Master deployments are most often Real-Time. Real-Time use refers to the fact you are viewing the data as the Channel Master collects it via a personal computer.
Channel Master Operation Manual 1.2 Getting Started You are probably eager to get started, but take a moment to read a few words of guidance. We strongly recommend you read all of the provided documentation to learn the full capabilities of your Channel Master. All documentation is being provided to you on CD in a fully searchable, printable, electronic format.
Channel Master Operation Manual 2 System Overview The Channel Master is designed to measure real-time horizontal current profiles from a permanent fixed mount. The Channel Master system consists of a Channel Master Horizontal ADCP, cables, and software. The input power requirements for the Channel Master are +10 to 18 VDC. The Channel Master system requires the addition of a Windows® compatible computer to collect data. 2.
Channel Master Operation Manual SHIPPING CRATE DUMMY PLUG (INSTALLED ON H-ADCP) DOCUMENTATION CD WinHADCP CD RDI Tools CD I/O CABLE MOUNTING PLATE KIT Figure 1. 2.2 CHANNEL MASTER H-ADCP TOOLS AND SPARE PARTS KIT Channel Master Inventory Visual Inspection of the Channel Master Inspect the Channel Master using Table 2 and Figure 2, page 6 through Figure 4, page 7. If you find any discrepancies, call RDI for instructions.
Channel Master Operation Manual 2.3 Channel Master Overview The Channel Master instrument contains two horizontal and one vertical transducer ceramics and the electronics. The standard acoustic frequencies for the horizontal transducers are 1200 kHz, 600 kHz, and 300 kHz. The standard frequency for the vertical beam is 600 kHz. See “Outline Installation Drawings,” page 134 for dimensions and weights. I/O Cable Connector – Input/Output (I/O) cable connects the Channel Mas- ter to the computer.
Channel Master Operation Manual VERTICAL BEAM I/O CABLE BEAM 1 BEAM 2 THERMISTOR TRANSDUCER HEAD URETHANE FACES I/O CABLE STRAIN RELIEF HOUSING I/O CABLE CONNECTOR PRESSURE SENSOR (ON BOTTOM) Figure 2.
Channel Master Operation Manual Figure 3. Channel Master Transducer (1200 kHz) with Mounting Plate Figure 4.
Channel Master Operation Manual 3 Channel Master Care This section contains a list of items you should be aware of every time you handle, use, or deploy your Channel Master. Please refer to this list often. 3.1 3.2 General Handling Guidelines • Never set the Channel Master on a hard or rough surface. The urethane faces may be damaged. • 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.
Channel Master Operation Manual 3.3 • The Channel Master uses Titanium hardware for the transducer housing and strain relief. These hardware sets are expensive and difficult to purchase locally. Don’t loose or substitute other metal hardware. • Place a light amount of DC-111 lubricant on the end-cap connector pins (rubber portion only). This will make it easier to connect or remove the I/O cable and dummy plug. • Do not connect or disconnect the I/O cable with power applied.
Channel Master Operation Manual 4 Setup the Channel Master Figure 5 through Figure 7, page 11 illustrates how to connect the Channel Master cable to your computer and power. Make sure the Channel Master is resting with the vertical beam facing upward or on its housing end to protect the I/O cable connector and the transducer urethane faces. Channel Master units are pre-configured to use RS-232, RS-422, or SDI-12 communications protocols.
Channel Master Operation Manual NOTE. The RS-232 to RS-422 converter supplied with the Channel Master 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). BBTalk To COMPUTER SERIAL PORT I/O CABLE BLUE = SDI12 BLACK = GND BLACK = Neg (-) RED = Pos (+) H-ADCP Figure 7. 4.
Channel Master Operation Manual 5 Software RDI has utility programs to help you set up, use, test, and trouble-shoot your Channel Master. Each program has a help file that you can print, or you can view help while running the program. Table 3: 5.1 Channel Master Software Main Modules Program Name Description BBTalk Windows Channel Master communication program. Use this program to "talk" to the Channel Master and to run test script files. BBTalk is included on the RDI Tools CD.
Channel Master Operation Manual 6 Testing Your Channel Master Use the following steps to test the Channel Master. a. Interconnect and apply power to the system as described in “Setup the Channel Master,” page 10. b. Start the BBTalk program (for help on using BBTalk, see the RDI Tools User’s Guide). c. On the File menu, click Break (you can also press the End key to send a break or use the Toolbar and press the B button). You should see the wakeup message appear on the log file window.
Channel Master Operation Manual g. At the “>” prompt in the communication window, enter the direct command PA then press the Enter key. This will run the Channel Master Pre-Deployment test. >PA RAM test...........PASS GO > h. If the wakeup, PS0 and PA message display, the Channel Master is functioning normally.
Channel Master Operation Manual 7 Recovering Data from the Loop Recorder The loop recorder contains approximately two megabytes of solid-state nonvolatile memory, which can be used to continuously record data. If more data is collected than fits in the memory, the oldest data will be overwritten with the newest data. You always have up to the last two megabytes of data available for download. 7.1 Using WinHADCP to Recover Data a. On the Tools menu, click Recover CM Recorder. b.
Channel Master Operation Manual b. On the File menu, click Recover Loop Recorder. c. Enter the directory where the files will be downloaded. Click the “…” button to browse for the directory. Click OK. Figure 9. Download Directory d. BBTalk displays current protocol status, filename being received, total size of receiving file and current number of bytes received. Figure 10.
Channel Master Operation Manual 8 Channel Master Maintenance This section explains how to prepare the Channel Master for deployment, how to do certain maintenance, and how to prepare the Channel Master for storage or shipment. 8.1 Spare Parts The following parts are included in the spare parts kit.
Channel Master Operation Manual 8.2 I/O Cable and Dummy Plug The I/O cable connector (on the Channel Master housing) and the I/O cable and dummy plug are molded wet-mate connectors. The I/O cable connector is a factory-installed item. We do not recommend removing it for any routine maintenance. NOTE. The dummy plug should be installed any time the I/O cable is removed. Use the dummy plug when the Channel Master is in storage or is being handled.
Channel Master Operation Manual 8.2.1 Disconnecting the I/O Cable or Dummy Plug The I/O cable should be disconnected with a straight outward motion only. Use the following procedure to disconnect the cable. CAUTION. When disconnecting the Channel Master I/O cable, do not apply any upward force on the connector as it is being pulled off. Applying an upward angle as the cable is disconnected puts stress on the end-cap connector.
Channel Master Operation Manual PIN 1 PIN 9 P2 P1 3 2 1 4 7 6 5 P1 P2 COMMUNICATION LINE 2 COMMUNICATION LINE 1 COMMUNICATION LINE 3 COMMUNICATION LINE 4 COMMUNICATION RETURN POWER + POWER Y-MOLD Figure 12. SPLICE MOLD RS232/RS422 I/O Cable Overview and Wiring Diagram Communication lines 1 through 4 signal names depend on what personality module is installed. Use the following tables to identify the signal name.
Channel Master Operation Manual P2 P1 P2 (RS232) P1 COMMUNICATION LINE 2 1 COMMUNICATION LINE 1 2 COMMUNICATION LINE 3 5 COMMUNICATION LINE 4 6 COMMUNICATION RETURN 4 BLK 3 WHT 2 BLU 9 BRN NC GRN 5 NC POWER + 7 POWER - 3 WHT BLU BLK BLK YEL WHT RED RED BLK BLK Y-MOLD Figure 13.
Channel Master Operation Manual 8.3 Housing Assembly Removal a. Remove all power to the Channel Master. b. Remove the I/O cable and place the dummy plug on the I/O cable connector (see “I/O Cable and Dummy Plug,” page 18). c. Set the transducer assembly (transducer face down) on a soft pad. d. Loosen (do not remove) the four titanium bolts (M6) bolts to vent the system. e. Once all four bolts have been loosened, remove the four bolts that attach the housing flange to the transducer head assembly. f.
Channel Master Operation Manual Figure 15. Disconnecting the Internal I/O Cable h. Clean the O-ring mating surfaces with a soft, lint-free cloth. Inspect the surfaces for damage (see “O-Ring Inspection and Replacement,” page 25). i. When you are ready to re-assemble the Channel Master, see “Channel Master Re-assembly,” page 25.
Channel Master Operation Manual I/O Cable Transducer Head Housing Retaining Strap Strain Relief I/O Cable Connector Housing Mounting Hardware (4) O-Ring Pressure Sensor Cover (Do Not Remove) Copper Port Screw Figure 16.
Channel Master Operation Manual 8.4 Channel Master Re-assembly To replace the housing, proceed as follows. Use Figure 16, page 24 for parts identification. 8.4.1 O-Ring Inspection and Replacement This section explains how to inspect/replace the Channel Master O-ring. A successful deployment depends on the condition of O-ring and the retaining groove. See Figure 16, page 24 for the location of the O-ring. Read all instructions before doing the required actions.
Channel Master Operation Manual 8.4.2 Housing Assembly Replacement a. Set the Housing assembly on its end on a soft pad. b. Make sure all printed circuit boards, spacers, cables, and screws have been installed. c. Inspect, clean, and lubricate the O-ring on the housing (see “O-Ring Inspection and Replacement,” page 25). CAUTION. Follow all the steps for O-Ring Inspection and Replacement. The watertight integrity of the Channel Master depends on this seal. d.
Channel Master Operation Manual 8.4.3 Pressure Sensor Calibration and Close-up a. Interconnect and apply power to the Channel Master as described in “Setup the Channel Master,” page 10. b. Start the BBTalk program (for help on using BBTalk, see the RDI Tools User’s Guide). c. On the File menu, click Break (you can also press the End key to send a break or use the Toolbar and press the B button). You should see the wakeup message appear on the log file window. d.
Channel Master Operation Manual j. The Channel Master should respond with the following message. “Now close the unit and tighten the closeup hardware. After this, hit any key to continue...”. k. Remove any wedge between the housing and transducer head. Tighten the bolts in small increments in a “cross” pattern until the split washer flattens out, and then tighten each bolt ¼ turn more to compress the face seal O-ring evenly. Tighten the bolts to the recommended torque value of 4 Newton-meters (34.
Channel Master Operation Manual NOTES. The most recent firmware versions can be seen at Teledyne RDI’s website. To see what versions a firmware package contains, see the readme file. A standard firmware package will only upload newer firmware than what is already in the Channel Master. The firmware versions in your Channel Master can be displayed with the PS0 command (see “PS0 – System Configuration,” page 77).
Channel Master Operation Manual e. If you have not already read the Read me file, click the Read me button. Click Start to begin the firmware upgrade. f. Select the Serial port your PC uses to communicate with the Channel Master. NOTE. If you do not see this port listed, it may be in use by another program such as WinHADCP or BBTalk. If this happens, close the port and then close the firmware package and start it again. g. Select the BAUD rate your Channel Master uses when it wakes up.
Channel Master Operation Manual i. Select the temporary BAUD rate to use for the firmware upgrade. The BAUD rate will be returned to the user default when done. Click OK to continue. j. Wait for the Firmware upload successful message. Click Exit. k. Start BBTalk. At the “>” prompt, type PS0. Verify the firmware versions have been updated. Horizontal ADCP RD Instruments (c) 2006 All rights reserved. Product Version: CM02.
Channel Master Operation Manual 8.6 Personality Module Replacement Personality modules can be replaced to change the Channel Master communications protocols (i.e. switch from RS-422 to RS-232). a. Remove all power to the Channel Master. b. Remove the I/O cable and place the dummy plug on the I/O cable connector (see “I/O Cable and Dummy Plug,” page 18). c. Set the transducer assembly (transducer face down) on a soft pad. d. Remove the housing (see “Housing Assembly Removal,” page 22). CAUTION.
Channel Master Operation Manual 8.7 Desiccant Bags Desiccant bags are used to dehumidify the housing interior. Desiccant is essential in deployments with plastic housings. The factory-supplied desiccant lasts a year at specified Channel Master deployment depths and temperatures. Remember that desiccant rapidly absorbs moisture from normal room air. The average dry weight of a new desiccant bag is 7.2 grams ((5%). The weight increases to 8.4 to 9 grams for a “used” desiccant bag.
Channel Master Operation Manual 8.9 Prevention of Biofouling This section explains how to prevent the buildup of organic sea life (biofouling) on the transducer faces. Objects deployed within about 100 meters (≈328 feet) of the surface are subject to biofouling, especially in warm, shallow water. Soft-bodied organisms usually cause no problems, but barnacles can cut through the urethane transducer face causing failure to the transducer and leakage into the Channel Master (see Figure 19).
Channel Master Operation Manual If using antifouling grease, remove the grease immediately after recovering the Channel Master from its deployment. Remove the grease with soapy water. Be sure to wear protective gloves and a face shield. CAUTION. 1. Do not arbitrarily use antifouling grease for every application. When barnacles are a threat to the transducer faces; using antifouling grease may be appropriate if you cannot clean the Channel Master regularly (weekly).
Channel Master Operation Manual 8.9.3 Applying Antifouling Paints Follow the urethane faces application instructions for TRILUX II. One thin coat can last for several months. NOTE. You cannot protect the pressure sensor from biofouling. The pressure sensor is located near the center of the transducer array, between the urethane-covered transducers. The sensor port is a small hole drilled through a screw (see “Pressure Sensor Maintenance,” page 37).
Channel Master Operation Manual 8.11 Pressure Sensor Maintenance In order to read the water pressure, water must be able to flow through the copper screw on the pressure sensor. The tiny hole in the copper screw may at times be blocked. Use the following procedure and Figure 16, page 24 to clean the screw. a. Place the Channel Master on its’ housing end. Use a soft pad to protect the Channel Master. b. Use a straight-slot screwdriver to remove the copper screw. c.
Channel Master Operation Manual a. Place the Channel Master on its side with the vertical beam facing down and the pressure sensor port facing up. Use a soft pad to protect the Channel Master. b. Use a straight-slot screwdriver to remove the copper port screw on the pressure sensor. Do not remove the pressure sensor cover. c. A plastic bottle with silicone oil (part number 75BK6004-00) is included in the spare parts kit. Place the tip of the bottle over the screw hole.
Channel Master Operation Manual 8.11.2 Zero the Pressure Sensor Use the SZ-command to zero out the pressure sensor at the deployment site, prior to deploying the Channel Master in the water. a. Connect and apply power to the system as described in “Setup the Channel Master,” page 10. b. Start BBTalk and wakeup the Channel Master (press the END key). c. Type SZ and press the Return key. d. Exit BBTalk. 8.
Channel Master Operation Manual Master to RDI for repair (see Figure 19, page 34). If you do not think you can remove barnacles without damaging the transducer faces, contact RDI. 8.12.2 Transducer Head Inspection The urethane coating on the transducer faces is important to Channel Master watertight integrity. Mishandling, chemicals, abrasive cleaners, and excessive depth pressures can damage the transducer ceramics or urethane coating.
Channel Master Operation Manual a. Use a strong shipping container made out of wood or plastic. b. Install a layer of shock-absorbing static-shielding material, 70-mm to 100-mm thick, around all sides of the instrument to firmly cushion and prevent movement inside the container. c. Seal the shipping container securely. d. Mark the container FRAGILE to ensure careful handing. e. In any correspondence, refer to the Channel Master by model and serial number. 8.
Channel Master Operation Manual Mark the Package(s) To: RD Instruments, Inc. (RMA Number) 9855 Businesspark Avenue San Diego, CA 92131-1101 Step 3 - Urgent shipments Send the following information by fax or telephone to RDI. Attention: Fax: Phone: Sales Administration (858) 695-1459 (858) 693-1178 • Detailed descriptions of what you are shipping (number of packages, sizes, weights, and contents).
Channel Master Operation Manual Mark the package(s) as follows: To: RD Instruments, Inc. (RMA Number) 5 Avenue Hector Pintus 06610 La Gaude, France Step 3 - Include Proper Customs Documentation The Customs statement should be completed very carefully. It should accurately and truthfully contain the following information.
Channel Master Operation Manual 9 Channel Master Installation This section is a guide for installing the Channel Master. Use this section to plan your installation layout. We recommend you distribute this information to your organization’s decision-makers and installation engineers. 9.1 Mounting Plate Assembly Assemble the mounting plate by connecting the four standoffs to the base plate (see Figure 21). Mount the standoffs with the flat end toward the base plate. Use the provided M6x1.
Channel Master Operation Manual +Z Vertical Beam +X Bea m 1 Be a m2 -X +Y Figure 22. Channel Master Instrument Coordinates It is important to mount the Channel Master with the two horizontal acoustic beams in the same horizontal plane (zero roll). A small tilt of the Channel Master may result in an interference of the acoustic beams with either the channel bottom or water surface (see Figure 23). The Channel Master is equipped with a tilt sensor that can be used to guide in mounting.
Channel Master Operation Manual 9.3 Installing the Channel Master on Site The Channel Master must be mounted on a rigid structure in the channel, such as a solid wall, pier, or pile. The mounting structure must be firm, stable, without settlement or displacement over time. NOTE. In order to gain the maximum profiling range at a site, we recommend the Channel Master be mounted near the middle of the water depth at the mounting structure location.
Channel Master Operation Manual NOTE. It should be emphasized that the acoustic backscattering intensity profile is the most important parameter for Channel Master data quality control and assurance. We recommend the user examine the intensity profile during the installation to make sure the profile does not show any thing abnormal. The velocity data will be questionable if the intensity profile is abnormal. The intensity profile should also be monitored during the Channel Master operation.
Channel Master Operation Manual 10 Channel Master Commands This section defines the commands used by the Channel Masters. These commands let you set up and control the Channel Master without using an external software program such as our WinHADCP program. However, we recommend you use our software to control the Channel Master because entering commands directly from a terminal can be difficult. Most Channel Master settings use factory-set values.
Channel Master Operation Manual >WP00001 > [Your original input] [Channel Master response to a valid, no-output command] If you enter a valid command that produces output data, the Channel Master executes the command, displays the output data, and then redisplays the “>” prompt. Some examples of commands that produce output data are ? (help menus), CS (start pinging), PS (system configuration data), and PA (run builtin tests).
Channel Master Operation Manual 10.2 Command Descriptions Each listing includes the command’s purpose, format, default setting (if applicable) range, recommended setting, and description. When appropriate, we include amplifying notes and examples. If a numeric value follows the command, the Channel Master uses it to set a processing value (time, range, percentage, processing flags). All measurement values are in metric units (mm, cm, and dm). 10.2.
Channel Master Operation Manual Break Purpose Format Description Interrupts the Channel Master without erasing present settings. A BREAK signal interrupts Channel Master processing. It is leading-edge triggered and must last at least 300 ms. A BREAK initializes the system, sends a wake-up (copyright) message, and places the Channel Master in the DATA I/O mode. The BREAK command does not erase any settings or data. Using BBTalk, pressing the End key sends a BREAK.
Channel Master Operation Manual 10.3 Control System Commands The Channel Master uses the following commands to control certain system parameters.
Channel Master Operation Manual Setting The Baud Rate In The Channel Master. The Channel Master can be set to communicate at baud rates from 300 to 115200. The factory default baud rate is always 9600 baud. The baud rate is controlled via the CBcommand. The following procedure explains how to set the baud rate and save it in the Channel Master. This procedure assumes that you will be using the program BBTalk that is supplied by RD Instruments. a.
Channel Master Operation Manual CF – Flow Control Purpose Format Range Default Sets various Channel Master data flow-control parameters. CFnnnnn Firmware switches (see description) CF11110 Recommended Setting. The default setting for this command is recommended for most applications.
Channel Master Operation Manual CJ – SDI-12 Configuration Purpose Format This command is used to enable SDI-12 communications. CJ x,y,z x – Enable/Disable (0 = Disable, 1 = Enable) y – Address (The address can be any alphanumeric character) z – English/Metric Units for output (0 = Metric, 1 = English) CJ 0,0,0 Default Recommended Setting. Use as needed. Description This command is used to enable SDI-12 communications for data logging purposes only.
Channel Master Operation Manual CL - Battery Saver Mode Purpose Determines whether the Channel Master will attempt to conserve power. CLn n = 0 to 1 (0 = do not conserve power, 1 = conserve power) CL1 Format Range Default Recommended Setting. The default setting for this command is recommended for most applications. Description CL0 means the ADCP will not make any attempt to conserve power.
Channel Master Operation Manual CS – Start Pinging (Go) Purpose Starts the data collection cycle (same as the Tab key in BBTalk). CS Format Recommended Setting. Use as needed. Use WinHADCP to create the command file. The CS command will be added to the end of the command file or sent by the software. Description Use CS (or the Tab key in BBTalk) to tell the Channel Master to start pinging its transducers and collecting data as programmed by the other commands. NOTE.
Channel Master Operation Manual CZ – Power Down Channel Master Purpose Format Tells the Channel Master to power down. CZ Recommended Setting. Use as needed. Description Sending the CZ-command powers down the Channel Master. Channel Master processing is interrupted and the Channel Master goes in the STANDBY mode (RAM is maintained). NOTES. 1.
Channel Master Operation Manual 10.4 Environmental Commands The Channel Master uses the following commands to control the environmental and positional information that affects internal data processing. >E? Available Commands: EC ED ES ET EX EZ E? 1500 ----------------00000 ---------------00 ------------------2100 ----------------01010 ---------------1101101 ----------------------------------- Speed Of Sound (m/s) Xdcr Depth (deci-meters) Salinity (ppt) Water Temperature (.
Channel Master Operation Manual Description ED sets the Channel Master transducer depth. This measurement is taken from the water surface to the transducer faces. The Channel Master uses ED in its speed of sound calculations. The Channel Master assumes the speed of sound reading is taken at the transducer head. See the primer for information on speed of sound calculations. NOTE.
Channel Master Operation Manual EX – Coordinate Transformation Purpose Format Range Default Sets the coordinate transformation processing flags. EXnnnnn Firmware switches (see description) EX01010 Recommended Setting. The default setting for this command is recommended for most applications. Description Table 12: EX sets firmware switches that control the coordinate transformation processing for velocity and percent-good data.
Channel Master Operation Manual EZ – Sensor Source Purpose Format Default Selects the source of environmental sensor data. EZcdhprst EZ1101101 Recommended Setting. The default setting for this command is recommended for most applications. Range Description Table 13: Firmware switches (see description) Setting the EZ-command firmware switches tells the Channel Master to use data from a manual setting or from an associated sensor.
Channel Master Operation Manual 10.5 Index Velocity and Discharge Commands The Index Velocity and Discharge Commands allow the user to input data and scale outputs to obtain average velocity, stage, cross-sectional area, discharge, and integrated volume directly from the Channel Master either via serial RS-232/RS-422 or via SDI-12. Rather than describe the commands in alphabetic order, it will be clearer to describe them by functional grouping and logical order of their application.
Channel Master Operation Manual 10.5.1 Channel Description Commands In order to compute cross-sectional area from stage, the shape of the channel needs to be described. The IA, IC, ID, IE, IP, and IW commands are used for this purpose. IA - Area Rating Constants Purpose Used to compute area of a rated channel using a rating equation. IA a.aaa, b.bbb, c.ccc -10000000 to 10000000 IA 1.000, 1.000, 1.000 Format Range Default Recommended Setting. Set using WinHADCP.
Channel Master Operation Manual ID - Diameter Purpose Format Range Default Sets the diameter of a circular channel. ID n.nnn 0.5 to 100 meters ID 1.000 Recommended Setting. Set using WinHADCP. Description The ID commands sets the diameter of a circular channel in meters. Diameters from 0.5 to 100 meters are allowed. IE - Transducer Elevation Purpose Format Range Default Sets the mounting elevation of the Channel Master. IE m.mmm, n.nnn m = 0 to 5000 meters, n = -100 to 5000 meters IE 1.000, 0.
Channel Master Operation Manual must be entered on a separate line. For example, a channel with four x, y pairs would be entered as: IP IP IP IP IP 1, 2, 3, 4, 5, 10.5, 20.2 15.3, 15.9 20.22, 17.57 35.5, 20.2 9999, 9999 IW – Bottom Width and Side Slope Purpose Used to provide the geometric details of the channel shape for a trapezoidal channel. IW m.mmm, n.nnn m = Bottom Width (0 to 500 m), n Side Slope (run/rise) IW 5.000, 1.000 Format Range Default Recommended Setting. Set using WinHADCP.
Channel Master Operation Manual 10.5.2 Computation Commands The Index Velocity and Discharge Commands Computation commands IB, IS, and IV are used to compute the index velocity (rated mean velocity based on the Channel Master’s velocity profile data). IB - Bank Purpose Used to indicate whether the Channel Master is mounted on the left bank or right bank. IBn n = 0 (left), 1 (right) IB1 Format Range Default Recommended Setting. Set using WinHADCP.
Channel Master Operation Manual To select a list of cells, the list is input using IS n, B where ‘n’ is the position in the list and B is the cell number. Input the list one cell at a time. The last cell is designated by entering 9999 for the bin number. For example entering the following will select cells 1, 3, 5, and 7 to be averaged. IS IS IS IS IS 1, 2, 3, 4, 5, 1 3 5 7 9999 IV – Velocity Equation Constant Purpose Format Range Default Sets the constants for the index velocity rating.
Channel Master Operation Manual 10.5.3 Output Commands The following Index Velocity and Discharge Commands are used to set parameters used to control the output of the computed, flow, area, etc. IF - Flag Counter Purpose Sets how long to use the last good velocity and vertical range data for discharge calculation when invalid data is measured. IFn n = 1 to 100 IF10 Format Range Default Recommended Setting. The default setting for this command is recommended for most applications.
Channel Master Operation Manual Description The IU command selects the units to be used for the output of velocity, discharge, volume, area, and stage via, RS-232/422 ASCII output or via SDI-12, as well as internally recorded data.
Channel Master Operation Manual Description Volume and discharge can be inconveniently large numbers. For example, the SDI-12 protocol does not permit more than seven digits in a single number. The scale factors shifts the decimal point up to six places to the left. This effectively provides more units than the IU command alone does. For example, suppose the volume is 12345678.9 cubic feet. If the IT command is set to 3, this would become 12345.67 kilo cubic feet.
Channel Master Operation Manual 10.6 Loop Recorder Commands The loop recorder contains approximately two megabytes of solid-state nonvolatile memory, which can be used to continuously record data. If more data is collected than fits in the memory, the oldest data will be overwritten with the newest data. You always have up to the last two megabytes of data available for download.
Channel Master Operation Manual MN – Set File Name Purpose Format Range Default Sets the file name for the recorder. MN xxx xxx = file name up to 32 characters long MN CHM Recommended Setting. Use as needed. Description The MN command sets the deployment name to be used for any future deployments. The deployment name can be up to 32 characters long, and may contain letters, numbers, or the underscore (i.e. “_”) character. If no deployment name is specified, a default of “CHM” is used.
Channel Master Operation Manual MY – Y-Modem Output Purpose Uploads recorder data to a host computer using standard YMODEM protocol. MY Format Recommended Setting. Use WinHADCP or BBTalk to recover data (see “Recovering Data from the Loop Recorder,” page 15). Description page 74 Use the MY command to recover data from the recorder only when BBTalk is not available to recover the data.
Channel Master Operation Manual 10.7 Performance and Testing Commands The Channel Master uses the following commands for calibration and testing. P? Available Commands: PA PC PD PS PT P? ------------------------------------------0 ---------------------------------------------------------------------------------- Run Go/No-Go Tests Built In Tests [0=help] Data Stream Select System Info [0=config,1=fldr,2=vldr,4=pings] Built In Tests, PT 0 = Help Display P-Command Menu 10.7.
Channel Master Operation Manual PC0 – Help Menu Sending PC0 displays the help menu. >PC0 PC0 PC2 PC4 > = Help = Display Sensor Data = Surface Track Ping – Advanced PC2 – Display Sensor Data PC2 makes measurements once a second. Lines of data end with a carriage return so BBTalk prints successive lines on top of each other. PC20 is just like PC2 except that lines end with a carriage return and a line feed. BBTalk scrolls with this command. >PC2 Sensor data is sampled and displayed in a loop.
Channel Master Operation Manual PD – Data Stream Select Purpose: Format: Range Default Selects the type of ensemble output data structure. PDn n = 0, 14, 19 (see description) PD0 Recommended Setting. The default setting for this command is recommended for most applications. PD14 and PD19 are used for integration of the Channel Master with other systems or data loggers.
Channel Master Operation Manual Product Version: CPU Firmware: FPGA Version: Sensor Boot: Sensor Firmware: Board Serial 24 00 00 00 15 00 00 00 A8 00 00 00 E3 00 00 00 DC 00 00 00 90 00 00 00 > CM02.04 28.28f 2.00.003 32.02 33.03 Number Data: 32 23 40 23 31 65 DC 23 10 66 B6 23 1F CD 99 23 31 CA 43 23 31 AB 7F 23 SNS72B-1000-00A PIO72B-2001-00B XDR71B-1007-00A PER72B-2006-00X RCV72B-2003-09A DSP72B-2002-00A PS1 – Fixed Leader PS1 sends the Fixed Leader parameters (i.e.
Channel Master Operation Manual PS4 – Ping Sequence PS4 sends an ASCII representation of the ping sequence generated by the WP and VP commands (see “WP – Pings per Ensemble,” page 94, “VP – Vertical Beam Number of Pings per Ensemble,” page 88 and “TP – Time Between Pings,” page 85 for explanation of ping sequence).
Channel Master Operation Manual are the horizontal water profiling beams. Beam 4 is the vertical beam. Beam 3 is unused electronics. The test contains four parts. Part 1 - The Channel Master pings without transmitting and displays the result of an autocorrelation function performed on the received ambient sound and internal electrical noise over 15 lag periods. Lag time can be calculated from the sample rate at the bottom line of the output. Lag = 1/sample rate.
Channel Master Operation Manual 10.8 Sensor Commands The following commands let you set the sensor functions. >S? Available Commands: ST C -------------------- Set temperature units (0=c; 1=f; 2=k) SZ ---------------------- Zero Pressure Sensor S? ---------------------- Display S-Command Menu 10.8.1 Sensor Command Descriptions This section lists the sensor commands. SZ – Zero Pressure Sensor Purpose Format Zeros the pressure sensor. SZ Recommended Setting. Use as needed.
Channel Master Operation Manual 10.9 Timing Commands The following commands let you set the timing of various profiling functions. >T? Available Commands: TD TE TF TP TS 00:20:00.00 ---------00:00:05.00 ---------00/00/00,00:00:00 ---00:00.60 ------------06/01/24,10:45:57.95 06/01/24,10:45:57.
Channel Master Operation Manual TE – Time Per Ensemble Purpose Sets the time interval between data collection cycles (data ensembles). TEhh:mm:ss.ff hh = 00 to 23 hours mm = 00 to 59 minutes ss = 00 to 59 seconds ff = 00 to 99 hundredths of seconds TE 00:00:05.00 Format Range Default Recommended Setting. Set using WinHADCP. Description Example The TE command sets the time between the start of one ensemble and the start of the next.
Channel Master Operation Manual TF – Time of First Ping Purpose Sets the time and date the Channel Master wakes up to start data collection. TFyy/mm/dd, hh:mm:ss yy = year 00-99 mm = month 01-12 dd = day 01-31 (leap years are accounted for) hh = hour 00-23 mm = minute 00-59 ss = second 00-59 Format Range Recommended Setting. Set using WinHADCP. Description Example TF delays the start of data collection.
Channel Master Operation Manual TP – Time Between Pings Purpose Format Range Sets the time interval between pings in an ensemble. TPmm:ss.ff mm = 00 to 59 minutes ss = 00 to 59 seconds ff = 00 to 99 hundredths of seconds TP00:00.60 Default Recommended Setting. Set using WinHADCP. Description Example The TP command sets the time interval between the start of one ping and the start of the next within an ensemble.
Channel Master Operation Manual TS – Set Real-Time Clock Purpose Format Range Sets the Channel Master’s internal real-time clock. TSyy/mm/dd, hh:mm:ss yy = year 00-99 mm = month 01-12 dd = day 01-31 hh = hour 00-23 mm = minute 00-59 ss = second 00-59 Recommended Setting. Set using WinHADCP. Description Use the TS command to set the Channel Master’s internal clock. Sending TS? displays two times.
Channel Master Operation Manual 10.10 Vertical Beam Commands The following commands define the criteria used to set the Vertical Beam data. >V? Available Commands: VD VF VP V? 111000000 -----------0005 ----------------001 --------------------------------------- Data Out {a;c;s;*;*;*;*;*;*} Blank (cm) Number of Pings per Ensemble (<100) Display V-Command Menu 10.10.1 Vertical Beam Command Descriptions This section lists the Vertical Beam commands.
Channel Master Operation Manual VF – Vertical Beam Blank after Transmit Purpose Format Range Default Moves the start of the search away from the transducer head. VFnnnn nnnn = 5 to 9999 cm (328 feet) VF0005 Recommended Setting. The default setting for this command is recommended for most applications. Description Set the VF command to start the search for the surface to some distance after transmit to avoid adjacent structures or to allow transmit recovery.
Channel Master Operation Manual 10.10.2 Expert Level Vertical Beam Command Descriptions The following expert commands define the criteria used to set the Vertical Beam data. #VC – Detection Filter, Pressure & Range Screening Control Purpose Format Range Default 1. Controls the surface detection filter that is applied to average RSSI data. 2. Controls whether the pressure sensor will be used as a first guess in detecting the surface. 3.
Channel Master Operation Manual 10.11 Water Profiling Commands The following commands define the criteria used to collect the water-profile data.
Channel Master Operation Manual WB – Mode 1 Bandwidth Control Purpose Sets profiling mode 1 bandwidth (sampling rate). Low bandwidth allows the Channel Master to profile farther, but the standard deviation is increased by as much as 2.5 times. WBn n = 0 (High), 1 (Low) WB0 Format Range Default Recommended Setting. The default setting for this command is recommended for most applications. Description Table 15: The WB-command influences profiling range.
Channel Master Operation Manual WD – Data Out Purpose Selects the water profile data types included in a PD0 ensemble. WD abcdefghi Firmware switches (see description) WD 111110000 Format Range Default Recommended Setting. The default setting for this command is recommended for most applications. Description The WD command uses firmware switches to tell the Channel Master the types of velocity profile data and firmware version data to include in a PD0 ensemble.
Channel Master Operation Manual WF – Blank after Transmit Purpose Moves the location of first cell away from the transducer head to allow the transmit circuits time to recover before the receive cycle begins. WFnnnn see table Format Range Frequency Minimum Maximum 300 kHz 10 cm 9999 cm (328 feet) 600 kHz 5 cm 9999 cm (328 feet) 1200 kHz 5 cm 9999 cm (328 feet) Default WF0050 (1200 kHz), WF0100 (600 kHz), WF0200 (300 kHz) Recommended Setting.
Channel Master Operation Manual WP – Pings per Ensemble Purpose Format Range Default Sets the number of pings to average in each data ensemble. WPnnnnn nnnnn = 0 to 999 pings WP00001 Recommended Setting. Set using WinHADCP. Description WP sets the number of pings to average in each ensemble before sending/recording the data. NOTE. If WP = zero the Channel Master does not collect water-profile data. The WP command affects the minimum ensemble interval (see “TE – Time Per Ensemble,” page 83).
Channel Master Operation Manual WV – Ambiguity Velocity Purpose Format Range Default Sets the radial ambiguity velocity. WVnnn nnn = 000 to 999 cm/s WV175 Recommended Setting. It is strongly recommended that the WV command be left at the default value of 175. Description Set WV as low as possible to attain maximum performance, but not too low or ambiguity errors will occur. RDI recommends that the WV command not be set below 100cm/s.
Channel Master Operation Manual 11 Channel Master PD0 Output Data Format This section shows the output data format of the Channel Master. Channel Master output data can be in either hexadecimal-ASCII or binary format. You can select this option through the CF-command (see the “CF – Flow Control,” page 54). We explain the output data formats in enough detail to let you create your own data processing or analysis programs (see “How to Decode a Channel Master Ensemble,” page 127).
Channel Master Operation Manual ALWAYS OUTPUT WD-command WP-command VD-command VP-command HEADER (6 BYTES + [2 x No.
Channel Master Operation Manual 11.1 Header Data Format BIT POSITIONS BYTE 7 6 5 4 3 2 1 HEADER ID (7Fh) 2 DATA SOURCE ID (7Fh) 3 1 0 LSB NUMBER OF BYTES IN ENSEMBLE 4 5 SPARE 6 NUMBER OF DATA TYPES 7 MSB LSB OFFSET FOR DATA TYPE #1 8 9 MSB LSB OFFSET FOR DATA TYPE #2 10 11 MSB LSB OFFSET FOR DATA TYPE #3 12 MSB (SEQUENCE CONTINUES FOR UP TO N DATA TYPES) ↓ 2N+5 OFFSET FOR DATA TYPE #N 2N+6 ↓ LSB MSB See Table 17, page 99 for a description of the fields. Figure 26.
Channel Master Operation Manual Header information is the first item sent by the Channel Master to the output buffer. The Channel Master always sends the Least Significant Byte (LSB) first. Table 17: Header Data Format Hex Digit Binary Byte Field Description 1,2 1 HDR ID / Header ID Stores the header identification byte (7Fh). 3,4 2 HDR ID / Data Source ID Stores the data source identification byte (7Fh for the Channel Master).
Channel Master Operation Manual 11.2 Fixed Leader Data Format BIT POSITIONS BYTE 1 7 6 5 4 3 2 FIXED LEADER ID = 0000 2 CPU F/W VER. 4 CPU F/W REV. 6 7 8 SYSTEM CONFIGURATION NUMBER OF BEAMS 10 NUMBER OF CELLS {WN} 12 13 14 15 16 PINGS PER ENSEMBLE {WP} RANGE CELL LENGTH {WS} BLANK AFTER TRANSMIT {WF} 17 RESERVED 18 LOW CORR THRESH {WC} 19 NO.
Channel Master Operation Manual Continued from Previous Page 29 RESERVED 30 31 SENSOR SOURCE {EZ} 32 SENSORS AVAILABLE 33 BIN 1 DISTANCE 34 35 36 RESERVED 37 38 39 FALSE TARGET THRESH {WA} 40 RESERVED 41 TRANSMIT LAG DISTANCE 42 43 LSB MSB LSB ↓ CPU BOARD SERIAL NUMBER 50 ↓ MSB 51 SYSTEM BANDWIDTH {WB} 52 LSB MSB RESERVED 53 54 55 ↓ CHANNEL MASTER SERIAL NUMBER 58 See Table 18, page 102 for a description of the fields Figure 27. Fixed Leader Data Format NOTE.
Channel Master Operation Manual Fixed Leader data refers to the non-dynamic Channel Master data that only changes when you change certain commands. Fixed Leader data also contain hardware information. The Channel Master always sends Fixed Leader data as output data (LSBs first). Table 18: Fixed Leader Data Format Hex Digit Binary Byte Field Description 1-4 1,2 FID / Fixed Leader ID Stores the Fixed Leader identification word 0000 (00 00h). LSB is sent first. 5,6 3 fv / CPU F/W Ver.
Channel Master Operation Manual Table 18: Fixed Leader Data Format (continued) Hex Digit Binary Byte Field Description 19,20 10 WN / Number of Cells Contains the number of range cells over which the Channel Master collects data (WN-command). Scaling: LSD = 1 range cell; Range = 1 to 128 range cells 21-24 11,12 WP / Pings Per Ensemble Contains the number of pings averaged together during a data ensemble (WP-command). If WP = 0, the Channel Master does not collect the WD water-profile data.
Channel Master Operation Manual Table 18: Fixed Leader Data Format (continued) Hex Digit Binary Byte Field Description 61,62 31 EZ / Sensor Source Contains the selected source of environmental sensor data (EZ-command). These firmware switches indicate the following.
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Channel Master Operation Manual Continued from Previous Page 35 ↓ RESERVED ↓ 48 49 LSB 50 PRESSURE 51 52 MSB 53 ↓ RESERVED ↓ 60 See Table 19, page 107 for a description of the fields. Figure 28. Variable Leader Data Format NOTE. This data is always output in this format.
Channel Master Operation Manual Variable Leader data refers to the dynamic Channel Master data (from clocks/sensors) that change with each ping. The Channel Master always sends Variable Leader data as output data (LSBs first). Table 19: Variable Leader Data Format Hex Digit Binary Byte Field Description 1-4 1,2 VID / Variable Leader ID Stores the Variable Leader identification word 0080 (80 00h). LSB is sent first.
Channel Master Operation Manual Table 19: Variable Leader Data Format (continued) Hex Digit Binary Byte Field Description 33-36 17,18 ED / Depth of Transducer Contains the depth of the transducer below the water surface (ED-command). This value may be a manual setting or a reading from a depth sensor.
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Channel Master Operation Manual The Channel Master packs velocity data for each range cell of each beam into a two-byte, two’s-complement integer [-32768, 32767] with the LSB sent first. The Channel Master scales velocity data in millimeters per second (mm/s). A value of –32768 (8000h) indicates bad velocity values. All velocities are relative based on a stationary instrument.
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Channel Master Operation Manual Correlation magnitude data give the magnitude of the normalized echo autocorrelation at the lag used for estimating the Doppler phase change. The Channel Master represents this magnitude by a linear scale between 0 and 255, where 255 is perfect correlation (i.e., a solid target). A value of zero indicates bad correlation values.
Channel Master Operation Manual The percent-good data field is a data-quality indicator that reports the percentage (0 to 100) of good data collected for each range cell of the velocity profile. The setting of the EX-command (Coordinate Transformation) determines how the Channel Master references percent-good data as shown below. EX-Command Coord.
Channel Master Operation Manual mand has a default of 5000 mm/s. This large WE setting effectively prevents the Channel Master from rejecting data based on error velocity. FIELD 3 - Percentage of No Solution Transformations - 45% of the velocity data were rejected because there was insufficient information (velocity Data) to attempt a transformation. FIELD 4 - Percentage of Full Solutions - 0% of the velocity data collected during the ensemble for range cell 60 generated a Full Solution.
Channel Master Operation Manual 11.6 Firmware Version Data Format The firmware version field is a short section of ASCII text in the middle of the binary ensemble data. It contains the version numbers of all the firmware in the Channel Master. The same version numbers are listed by the PS0 command (see “PS0 – System Configuration,” page 77). Version numbers in the field are separated by line feed characters (0Ah). The text section is terminated with a NUL character (00h).
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Channel Master Operation Manual Continued from Previous Page BIT POSITIONS BYTE 7 6 5 4 3 2 1 0 35 36 STD of Depth based on Corrected Pressure 37 38 39 40 Min of Depth based on Corrected Pressure 41 42 43 44 Max of Depth based on Corrected Pressure 45 46 Figure 31.
Channel Master Operation Manual For Evaluation Amplitude, Amplitude at the Surface, Standard Deviation, Max Surface Track and Min Surface Track the following applies: If number of bursts per ensemble is 1, then this is based on the good pings in the ensemble. If the number of bursts per ensemble is greater than 1, then this is based on the output from each burst which could be from individual pings or from average RSSI data.
Channel Master Operation Manual 11.8 Surface Track Amplitude Output BIT POSITIONS BYTE 7 1 6 5 4 3 2 1 Vertical Beam Amp ID = 4002 2 3 0 LSB 02h MSB 40h Pings in Burst (NPing) 4 Bin Location of Surface (Avg.) 5 6 Filter Evaluation Amp (Avg.) 7 Amplitude at Surface (Avg.) 8 W Filter Bin Location of Surface (Avg.) 9 10 W Filter Evaluation Amp (Avg.) 11 W Filter Amplitude at Surface (Avg.) 12 Leading Edge Filter Bin Location of Surface (Avg.
Channel Master Operation Manual The data in this structure is from the last burst in an ensemble. Table 27: page 120 Surface Track Amplitude Output Hex Digit Binary Byte Field Description 1-4 1,2 VB_AMP_ID / Vertical Beam Amp ID Stores the Vertical Beam Amplitude ID word 4002 (02 40h). LSB is sent first.
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Channel Master Operation Manual Table 28: Surface Track Commands Output Hex Digit Binary Byte Field Description 1-4 1,2 VB_CMD_ID / Vertical Beam Commands ID Stores the Vertical Beam Commands ID word 4001 (01 40h). LSB is sent first. 5-8 3,4 VM_Blank See VF command (see “VF – Vertical Beam Blank after Transmit,” page 88). 9-12 5,6 VM_Pings See VP command (see “VP – Vertical Beam Number of Pings per Ensemble,” page 88). 13,14 7 VM_BW See #VB command.
Channel Master Operation Manual 11.10 Binary Reserved BIT Data Format BIT POSITIONS BYTE 7 6 1 5 4 3 2 1 0 LSB RESERVED FOR RDI USE 2 Figure 33. MSB Binary Reserved BIT Data Format NOTE. The data is always output in this format. See Table 29 for a description of the fields. Table 29: Reserved for RDI Format Hex Digit Binary Byte Field Description 1-4 1,2 Reserved for RDI’s use This field is for RDI (internal use only). 11.
Channel Master Operation Manual 12 Channel Master PD14 Output Data Format This section details the specification of an output format for data consisting of a header (with timestamp), a two dimensional profile of velocity, acoustic intensity, and standard error data, tilt sensor data, stage data, and a checksum. This format is primarily intended for integrating the Channel Master with other systems or data loggers. Data will be output in this format when PD14 is selected as the output format. 12.
Channel Master Operation Manual Table 31: Channel Master PD14 Output Data Format Position Size Name Description 0 2 SOE Start of ensemble - always 0x8F8F 2 2 NBytes Number of bytes 4 2 NEnsemble Number of ensembles since start of deployment 6 2 Year 4-digit year 8 1 Month Month 9 1 Day Day of month 10 1 Hour Hour of day since midnight 11 1 Minutes Number of minutes since the last hour 12 1 Seconds Number of seconds since the last minute 13 1 Hundredths Hundredth
Channel Master Operation Manual 13 Channel Master PD19 Output Data Format PD19 output data format outputs ASCII data on the serial port and records PD0 data internally, if recording is enabled. The output of PD19 is a comma delimited format similar to a NEMA format. A typical output would appear as: PRDIQ, 12, 432456.123, 2.45, 234.45, 0.65, 345.33, 15.12, 2.56, -0.32, 0 In order from left to right, the fields are described in Table 32.
Channel Master Operation Manual 14 How to Decode a Channel Master Ensemble Use the following information to help you write your own software. 14.1 Rules for the Channel Master Data Format PD0 a. All data types (i.e. fixed leader, variable leader, velocity, echo intensity, correlation, percent good, etc.) will be given a specific and unique ID number. The table below shows some of the most common IDs.
Channel Master Operation Manual f. The total number of the bytes in an ensemble minus the 2-byte checksum will be included in the header. 14.2 Recommended Data Decoding Sequence for Data Format PD0 a. Locate the header data by locating the header ID number (in the case of PD0 profile data that will be 7F7F). b. Confirm that you have the correct header ID by: 1. Locating the total number of bytes (located in the header data) in the ensemble. This will be your offset to the next ensemble. 2.
Channel Master Operation Manual 3. typedef struct { } VelocityType 4. and so on for every available type. b. Clear checksum. c. Look for PD0 ID 0x7F. Add to checksum. d. Is next byte a 0x7F? Add to checksum. e. If no, return to step “b”. f. Else, read next two bytes to determine offset to checksum. Add two bytes to checksum. g. Read in X more bytes, where X = offset to checksum - 4. Adding all bytes to checksum. h. Read in checksum word. i. Do checksums equal? j.
Channel Master Operation Manual /****************************************************************************/ /* structures */ /****************************************************************************/ typedef unsigned char uchar; typedef unsigned short ushort; typedef unsigned long ulong; typedef struct { uchar Minute, Second, Sec100; } TimeType; typedef struct { uchar Year, Month, Day, Hour, Minute, Second, Sec100; } DateTimeType; typedef struct { uchar Version, Revision; } VersionType; typedef stru
Channel Master Operation Manual ushort } BITResult, SpeedOfSound, Depth, reserved1; short Pitch, Roll; ushort Salinity; short Temperature; TimeType MaxTimeBetweenPings; uchar HeadingStddev, PitchStddev, RollStddev; uchar reserved2 [14]; ulong pressure; uchar reserved3 [4]; VarLeaderType; typedef struct { ushort ID; short Data [256]; } OneBeamShortType; typedef struct { ushort ID; uchar Data [256]; } OneBeamUcharType; typedef struct { ushort ID; short Data [1024]; } IntStructType; typedef struct { ushort
Channel Master Operation Manual { } 15 } VelPtr = (IntStructType *)&RcvBuff [ HdrPtr->Offset [i] ]; break; } case CorSelected { CorPtr = break; } case AmpSelected { AmpPtr = break; } case PctSelected { PctPtr = break; } case SttSelected { SttPtr = break; } } : (ByteStructType *)&RcvBuff [ HdrPtr->Offset [i] ]; : (ByteStructType *)&RcvBuff [ HdrPtr->Offset [i] ]; : (ByteStructType *)&RcvBuff [ HdrPtr->Offset [i] ]; : (ByteStructType *)&RcvBuff [ HdrPtr->Offset [i] ]; Specifications Table 34: Velocit
Channel Master Operation Manual Table 36: Power Specifications Voltage 10 to 18 VDC Maximum Current 1.5A NOTE. Energy consumption depends on velocity profiling parameters. Contact RD Instruments or a representative for an accurate prediction for your application. Table 37: Standard Sensors Specifications Acoustic Stage Pressure Temperature Tilt Table 38: Range 0.15 to 10 meters Accuracy ±0.1%, ± 3 mm (which ever is greater) Resolution 0.1 mm Range 0.1 to 10.
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Channel Master Operation Manual P/N 95B-6001-00 (February 2006) page 135
Channel Master Operation Manual page 136 Teledyne RD Instruments
Channel Master Operation Manual 15.2 Mounting Plate Drawing 16 Technical Support If you have technical problems with your instrument, contact our field service 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.
Channel Master Operation Manual 17 Glossary If, after reviewing this section, you are unable to find the word/jargon in question, please send us an e-mail containing that word. Your questions will ensure that our glossary remains an effective reference tool for our customers.
Channel Master Operation Manual AUV: Autonomous Underwater Vehicle ------ B -----Backscatter: 1) The portion of a sound wave that is reflected by scatterers directly back toward the source. 2) A qualitative measurement (in decibels) of scatterer concentration which is calculated in the WinRiver software. This calculation corrects the echo intensity data for sound absorption, beam spreading, transducer temperature, etc. and provides an excellent means of tracking relative concentration (e.g.
Channel Master Operation Manual Beam Coordinates: Profile data is reported as referenced along each beam (i.e. no coordinate transformation is performed upon the raw data). Beam Spreading: The extent to which the main lobe of energy generated by a transducer fans out, or spreads as an acoustic wave front, with distance from the transducer. This is proportional to λ/d where λ is the wavelength of sound generated and d is the diameter of the transducer.
Channel Master Operation Manual Bottom Track Modes: There are currently four bottom tracking modes of operation available from RDI: Bottom Mode 4: Uses ambiguity resolution, and adjusts lags for reduced variance at higher elevations (or deeper depths). Bottom Mode 5: Specifically designed for reduced variance in shallow water/low elevations. It transmits several pings with computations to best determine depth and speed.
Channel Master Operation Manual Degaussing: Technique used to remove the magnetic field from RDI battery packs before installation, done to minimize any effects the batteries will have on the magnetic compass. Depth Cell (Bin): A measurement within a profile, generally equivalent to a single-point current meter on a mooring. Depth Cell Mapping (Bin Mapping): When the ADCP is tilted; the measurements taken at equal distances along each beam are no longer in the same horizontal layer of water.
Channel Master Operation Manual Doppler Velocity Log (DVL): An instrument designed to measure the velocity and elevation of a moving platform with bottom tracking. Most DVLs will switch to measuring velocity relative to the water when the bottom is out of range. DVL: Doppler Velocity Log. ------ E -----Earth Coordinates: Profile data is reported in an orthogonal coordinate frame as referenced to the Earth (East, North and Up). “North” can mean magnetic or true, depending on the heading input.
Channel Master Operation Manual ------ G -----Gimbals: Frame that will support the weight of an object but allow its free rotation. Gimbals can be constructed to allow free rotation in one, two, or three axes. Gyro: A rapidly spinning device mounted on gimbals to maintain a constant orientation. These devices are commonly used to measure heading on ships because, unlike magnetic compasses, they are unaffected by ferrous metals or by varying electromagnetic fields.
Channel Master Operation Manual ------ M -----Main Lobe: The main focus of energy emitted from a transducer. If the transducer were a flashlight, the main lobe would be the visible beam of light. Mariner: Model name for a Workhorse Monitor ADCP configured for underway current measurement in shallow water (as opposed to the deep water Ocean Surveyor systems). Modes: RDI offers several modes of operation that are optimized for certain conditions.
Channel Master Operation Manual common for bottom tracking measurements to lock onto a sediment layer that is still moving, resulting in a bias to the bottom tracking velocity. This is especially important for river discharge measurements, where the vessel’s navigation must be substituted for the bottom track velocity to obtain accurate results. ------ N -----Navigator: Model name for the RDI Doppler Velocity Log. Narrowband ADCP: An ADCP that uses narrowband processing.
Channel Master Operation Manual Ping: The entirety of the sound generated by an ADCP transducer for a single measurement cycle. A broadband ping contains a coded series of pulses and lags, while a narrowband ping contains a single pulse. Ping Mode: Power conserving mode for a deployed ADCP or DVL, where only the power needed for the immediate deployment task is drawn (as opposed to command mode, where the ADCP consumes considerable power while simply waiting for input).
Channel Master Operation Manual 7. Salinity: generally, the fresher the water, the longer the range. Range Gating: After sending a ping into the water, the ADCP transducers listen for returned signal. The time series of the returned signal is then broken into a sequence of time segments, or range gates. Each segment is equivalent to a depth cell, with the last segment coming from the farthest range from the ADCP. RDI Tools: Software package containing all of the BB* programs (BBTalk, BBList, etc.
Channel Master Operation Manual Sentinel: The model name for a self-contained Workhorse ADCP. Ship Coordinates: Profile data is reported in an orthogonal coordinate frame as referenced to the ship (if beam 3 is forward then ship coordinates are the same as instrument coordinates). Sidelobes: Peaks in sound intensity generated by a transducer found to the side of the main lobe. Sidelobe Contamination: This only need be considered when operating an ADCP near a boundary (e.g. in shallow water).
Channel Master Operation Manual UUV: Unmanned Underwater Vehicle ------ V -----Vessel Mount: An ADCP mounted to the hull of a vessel, typically in a sea chest, and having inputs from the vessel’s navigation equipment. VM-DAS: Windows-based data acquisition package for vessel mount ADCPs. This package includes the ability to incorporate the ship’s navigation equipment. ------ W -----Wavelength: The distance between successive wave crests in a sound wave.
Channel Master Operation Manual NOTES P/N 95B-6001-00 (February 2006) page 151
Channel Master Operation Manual NOTES page 152 Teledyne RD Instruments
