Odom eChart - Teledyne Odom Hydrographic
Contents
1. PEC CEP PEPER E ECE eee eee ees ol Zoom to current chart width Auto Zoom Disabled Tl Lock views together when zooming and panning Defaults Close This tab sets the preferences that affect all the windows 3 2 3 7 1 Grid Lines The grid lines box allows the operator to customize the scale lines on the scrolling chart The operator can select the color of the major and minor scale lines and how far apart the lines are The transparency slider allows the operator to set how transparent the scale lines are 3 2 3 7 2 Horizontal Scaling Changes the rate at which data is scrolled horizontally across the screen 3 2 3 7 3 Auto Zoom Mode Auto Zoom Mode determines how the Reset Zoom icon on the tool bar will work If Zoom to display all previous data is selected and the operator clicks on the Reset Zoom icon the vertical scale will zoom to encompass all the previous since eChart was connected to the Echotrac If Zoom to current chart width is selected and the Reset Zoom icon is clicked the vertical scale will change to the scale width set by the Echotrac Auto Zoom Disabled de activates the Reset Zoom icon 3 2 3 7 4 Lock views together when zooming and panning This check box will lock all the displays to zoom and pan together Q Page 25 of 28 Ta P Odom Hydrographic Systems Inc October 24 2008 eChart User Manual 3 2 4 Preferences 3 2 4 1 File Recording Sets the maximum file size for2. unida soussisteusuuanddenssupiennsdiadsees la 9 2 1 SoftWare Mstalatio arrienda dee btt 9 3 TECH MOUS sii A a A Ia ds 10 3 1 E A o CE E un soa aabanasacsnasdeasatacvuesasnaeecaaneac saa shseee A 10 Bed Open File cita at 10 ode E Cabs E T 10 3 1 3 Convert DSO file to XTF saarin nan ane a Ea aa nana aa ia naar ana n nn cnn aa aaia 10 314 Save Mage iii eee eee ised E A eddies 10 A E NA 10 31 51 Channelito prit ssie inimese o aa 11 3 1 5 2 Current Vie WpoTi seii a da 11 3 1 5 3 Entire Recordad 12 3 1 6 Connect to Sounder Disconnect from Sounder ccccccccccccccccccccncnoncnononocononononononononononononononononnonononons 14 32 SWNG ssi cede eects viene a A a AE EANA A A aa aN Taa Aa Ta AN a aA E EA einen 15 32 1 Device Settings acneea Bet eee ee ee A A NEEN aa 15 SA O AAA A E E A EE E EEEE EAE N 16 323 DISPIAY ii E E AAE Seda en end ele nee diene eee eee ds 21 3 2 3 1 Color Scale aaea a ee OS E 22 S202 NN 22 3 2 3 3 Show Digitized Depth in SCOP 0 cece eeeceeeceeeeeeeeeeeeeeeaaeeeeeceseaeeeeeaeseeaaeeseaeeeeaaeeeeaaesseneeeneeeeas 23 3 2 3 4 Track Bottom When Zoomed N oooooccccccccncnonoccccnnnnnonononancncnnnononananancn nono non nn nnnnnn annann nannan narenn nne 23 A OE AI PO A III A II A 23 323 6 COMINO Mit tt ceder 24 9237 AAA II II II ges 25 E A N A A A A 26 S241 Fil RECON E Pin o o E T 26 9242 A A O A A 26 A a E 26 3 3 1 CA da ati 26 332 AAA PO II II O O II OPT a 26 3 NAM id 26 3 3 4 NT unnn kn
3. 24 2008 eChart User Manual 3 2 2 Bar Check The bar check is the hydrographic survey industry s most widely accepted method of calibrating single beam echo sounders The procedure involves deploying a plate or bar that is suspended by cables or chains at accurately measured distances below the transducer The Bar Check Wizard streamlines the bar check procedure for calibration The result of the Wizard is an echo sounder that is calibrated for draft sound velocity and index offsets The Bar Check Wizard also generates a text file containing the values associated with each calibration factor The three parameters the Echotrac needs to determine the depth accurately are Draft Sound Velocity and Index Draft is the distance from the water surface to the face of the transducer Sound Velocity is the average speed of sound in the water column Index errors are any delays caused by the transducer elements and analog filters in receiver of the echo sounder Draft and Index errors are best determined when the bar is placed close to the face of the transducer and sound velocity is best determined when the bar is at its deepest Before starting the bar check make sure the TX Power RX Gain Pulse Width TVG curves Threshold and Bandwidth parameters are set to values which are appropriate for the survey to be performed Changing any of these parameters will impact the calibration of the Echotrac as it will any echo sounder xf Welcome to
4. C Track Bottom When Zoomed In Scale offset Default 0 Display Heave Line Points v C 3 2 3 2 Digitzer The Digitizer box lets the operator select which items are displayed on the screen and whether they are displayed using dots or lines and what colors are used 3 2 3 2 1 Display Tracking Gate Echotrac sounders maintain a dynamic tracking window around the seabed so that any objects acoustic reflectors appearing outside of the window are ignored once a valid bottom is determined This window is called the tracking gate This menu item determines whether the gate is displayed or not and how it is displayed Please note that the gate is always displayed as a dark shade of green on the signal display 3 2 3 2 2 Display Digitzer Line The Digitized Depth is the depth the Echotrac has determined to be the bottom This feature allows the operator to plot the line that represents that depth on the screen This feature is designed to help the operator visualize what the echo sounder has picked as the seabed 3 2 3 2 3 Display Heave Line The heave line is used when a motion reference unit is connected to the Echotrac Displaying the heave line is useful in determining how well the heave compensation instrument is correcting for the vertical displacement of the transducer resulting from wave action Q Page 22 of 28 ta Odom Hydrographic Systems Inc October 24 2008 Pe eChart User Manual Odom eChart Not Logging C
5. Print preview 32 O BB B cose 9 Page 13 of 28 a Odom Hydrographic Systems Inc October 24 2008 eChart User Manual 3 1 6 Connect to Sounder Disconnect from Sounder This will connect the eChart software to an Echotrac sounder through the Ethernet port If connecting directly between the Echotrac and eChart computer ensure a cross over CAT5 cable is used Make sure the computer has acquired a network connection to the sounder first otherwise a connection cannot be established There is also an icon on the tool tray for this function A Page 14 of 28 lr October 24 2008 F Odom Hydrographic Systems Inc eChart User Manual 3 2 Settings 3 2 1 Device Settings The Device Settings controls all the parameters for the Echotrac If the Echotrac model that is connected to eChart does not support a certain feature that feature will appear greyed out and will not be accessible to the operator Device Settings System Setup Calibrate Chart Communications Diagnostics Gain Tx Power Enable Channels Signal Type Channel 1 Bathymety re Channel1 Envelope v Channel 2 Bathymetry v Channel2 Envelope v Channel 3 Channel 3 System Units Echo Alarm Maximum Depth Metes ON O Feet OFF Trigger Standby Bit Intemal ON Extemal OFF Blanking Min Depth Alarm Ping Rate 0 auto IA Reset System Defaults Close Page 15 of 28 ta Odom Hydrographic Systems Inc October
6. nannan Anun nn AAEE EEEE ARAA EE EE EEEE AREA EE EEEE REAREA EEEa E EEEE 26 3 3 5 Tile Horizontally sii da a iaaa panarat aiia 26 3 3 6 Tile Vertical iii a Sedaaa paiiar dadas Rs 26 3 3 7 Device Control Only oooncccinicinnnnnnnccnnnccnncnnnncn cnn nec cnn 26 TAS A ON 27 3 4 1 A A a eE 27 4 FOatUleS E E A AAE E EA A EEE AE E EE E E EEE A E E E A 28 4 11 ZOOMIN aaia A A eaten oe ees 28 Pe Q Page 3 of 28 Odom Hydrographic Systems Inc October 24 2008 eChart User Manual Q Page 4 of 28 ta Odom Hydrographic Systems Inc October 24 2008 Pe eChart User Manual 1 INTRODUCTION Odom eChart hereafter referred to as eChart is a data display and control program for the Echotrac family of hydrographic echo sounders That family includes the MKIII Echotrac CV100 Echotrac CV2 Echotrac CV3 and Echotrac CVM echo sounders manufactured by Odom Hydrographic Systems Inc eChart utilizes the Ethernet port available on these units to send commands to and to display and log data from the entire Echotrac Family of single beam echo sounders The Ethernet data output by these echo sounders are 1600 or 3200 time series of 16bit amplitude values of the water column digitized each time the sounder transmits a pulse to the transducer Depending on the Echotrac model up to 3 channels of data are sampled simultaneously up to maximum repetition rate of 20 times per second Collection of that amount of data is made possible by the wide ban
7. recording data If a file is larger than the number entered and new file will be created 3 2 4 2 Connection Sets the UDP port to connect to the Echotrac Normally this should always be left at 1600 In the Echotrac MKIII this can be changed through the front panel menu In the Echotrac CV s a special modification is needed on the board to change the port number 3 3 View Selects which views are turned on 3 3 1 Channel 1 Normally the high frequency channel in an Echotrac 3 3 2 Channel 2 Normally the low frequency channel in an Echotrac 3 3 3 Channel 3 The only Echotrac that supports three channels is the Echotrac CV3 In most cases the third channel is a second high frequency channel or a side scan channel 3 3 4 Combined View Turns on the combined view window Go to Settings gt Display to select which channels to display on this window 3 3 5 Tile Horizontally Tiles the active windows horizontally 3 3 6 Tile Vertically Tiles the active windows vertically 3 3 7 Device Control Only If Device Control Only is checked eChart will only display the menu along with the depth and gain adjustment displays The chart windows will be eliminated Q Page 26 of 28 ta Odom Hydrographic Systems Inc October 24 2008 Fe eChart User Manual Odom eChart Not Logging File Settings View Help b Aaa Record Device Settings Mark 3 4 Help 3 4 1 About Channel 1 The About menu lists informati
8. sound velocity calibration Most often this is caused by improperly accepting the depth of the bar check when the bar is not directly under the transducer Q Page 19 of 28 lC October 24 2008 P Odom Hydrographic Systems Inc eChart User Manual Bar Check Wizard Set Initial Channel 1 Channel 1 Values Index Sound Velocity Pia 1 Deploy the bar below the transducer to a depth of A less than 5 meters and enter the bar s known depth BE 2 Set width of gate to eliminate returns other than bar i 18 Default 1 Digitized depth 3 Adjust index until digitized depth is equal to bar depth g Draft 1 50 Accept Channel 1 Repeat Speed Of Sound The next step in the bar check wizard is to confirm the measurement of the shallow water bar check since the measurement might change if the sound velocity initially entered was not accurate If the measurement agrees with the bar the procedure is finished otherwise keep repeating the shallow water deepwater measurements until both agree If calibrating more than one channel Channel one or the highest frequency channel available is used to determine the sound velocity The low channel s need only to be employed to arrive at the appropriate draft and index figures for each since the sound velocity is common for all channels Confirm Completion j xj Are you sure you are finished calibrating the Index and sound velocity on the primary channel You should repeat
9. the Bar Check Wizard The Bar Check Wizard will guide you through echosounder calibration Which channels would you like to calibrate M Channels to Calibrate 4 m Primary Channel M Channel 1 Channel 1 Channel 2 F Charmel3 Important Please ensure the echosounder is setup to get a solid bottom return under current site conditions within survey area before continuing Changing Ax gain bandwidth or pulse width will invalidate the bar check results Cancel Enter which channels you would like to calibrate Channel 1 high frequency is normally used to calibrate the sound velocity unless only calibrating channel 2 is selected Q Page 16 of 28 lC October 24 2008 P Odom Hydrographic Systems Inc eChart User Manual xf Se Set Initial Channel 1 Channel 1 Values Index Sound Velocity AAA Bar Check Depths Enter the deepest planned bar check depth 4 i Sound Velocity Enter initial sound velocity This can be measured with a sound velocity probe or you can enter a default value Default 1500m s 1500 Draft Enter draft of transducers as physically measured from water surface to bottom of transducer Channel 1 Draft 1 50 lt Back Next gt Cancel Enter the deepest planned bar check depth The deeper the bar check the better the calibration will turn out Make sure there is at least 1 meter 3ft between the deepest bar check d
10. the cycle several times until the change in settings per cycle are to a minimum This process ensures proper sound velocity calibration Repeat Primary Finished Calibrating Channel Calibration Primary Channel The confirm Completion screen give the operator a chance to repeat the calibration of complete the calibration The biggest source of error when bar checking and echo sounder is ensuring the bar is directly under the transducer when accepting the measurement Do not increase the gain in an attempt to compensate for the bar not being directly under the transducer Q Page 20 of 28 le October 24 2008 P Odom Hydrographic Systems Inc eChart User Manual Bar Check Wizard Bar Check Completed A log file has been created to record the bar check process C Program Files Odom eChart B arChecks B arCheck_2007 12 19_8 44 21 txt Bar check started Wednesday December 19 2007 8 40 04 AM Values before bar check Sound Velocity 1500 Index channel 1 0 00 Draft channel 1 0 00 Index channel 2 0 00 Draft channel 2 0 00 Index channel 3 0 00 Draft channel 3 0 00 Initial values set 8 40 12 4M Initial SOS 0 Initial draft channel 1 1 50 Initial draft channel 2 0 00 Initial draft channel 2 A NN The final step of the bar check wizard is a summary of the parameters changed and a text file is created of the bar check This file is placed in the install_directory Odom BarChecks folder 3 2 3 Display T
11. Odom eChart USER MANUAL Version 0 4 Odom Hydrographic Systems Inc 1450 Seaboard Avenue Baton Rouge Louisiana USA 70810 6261 Telephone 225 769 3051 Fax 225 766 5122 Email Odomhydrographic com http www odomhydrographic com Number of pages 28 Date October 24 2008 Q odom HYDROGRAPHIC SYSTEMS INC eChart User Manual Revision Histor Version Author Remarks 12 13 2007 Initial version draft 01 31 2008 First Edits 04 18 2008 Software version 1 1 12 update 10 24 2008 Software version 1 3 update ODOM HYDROGRAPHIC SYSTEMS INC 2008 All rights are reserved Reproduction in whole or in part is prohibited without the prior written consent of the copy right owner The information presented in this document does not form part of any quotation or contract is believed to be accurate and reliable and may be subject to change without notice The publisher will not accept any liability for any consequence of its use Publication thereof does not convey nor imply any license under patent or other industrial or intellectual property rights Q Page 2 of 28 ta Odom Hydrographic Systems Inc October 24 2008 Pe eChart User Manual CONTENTS 1 Introduction ecaccbanweuguetiucnuevawsonscuzwousderieansivauecnddelacudvesseden s 5 1 1 ETA AS 5 E ed U4 918 5 O 6 Lor 2 0 0 A a ener eee ere errr eer at T 6 Vi A 2a Dance veces Sn sds ch baa E gnc 0a E edness ewes Seeees tes A 7 2 INstallatiON
12. dwidth of the Ethernet link compared to an RS232 link tasked similarly eChart also allows the operator to replay data that has been logged The software has zoom in zoom out functions that allow the operator to view the entire file or a small portion of the file The operator can also display all of the parameters for any single ping in the data file eCHart also has printing facilities that utilize standard Windows printers 1 1 Main eChart Screen Odom eChart Not Logging File Settings View Help men 3 Open Record Device Settings Reset Zoom Mark Channel 1 Depth Display Signal Scope Display Analog controls Q Page 5 of 28 ta Odom Hydrographic Systems Inc October 24 2008 eChart User Manual 1 2 Purpose The purpose of this document is to explain the features and operation of eChart software 1 3 Scope The scope and content of this document is focused on providing useful information to the end user Q Page 6 of 28 ta Odom Hydrographic Systems Inc October 24 2008 Pe eChart User Manual 1 4 Glossary DGPS Differential Global Positioning System NMEA National Marine Electronics Association VDC Volts Direct Current Q Page 7 of 28 ta Odom Hydrographic Systems Inc October 24 2008 Pe eChart User Manual Q Page 8 of 28 ta Odom Hydrographic Systems Inc October 24 2008 Pe eChart User Manual 2 INSTALLATION 2 1 Software Installation There are two versions of
13. efaults Close The Combined View tab sets the display properties for the Combined View window This window allows the operator to select two or more channels to overlay or display on top of each other viewed simultaneously in one Window 3 2 3 6 1 Opacity This display function fades the data for the channel selected in and out The capability to change Opacity is useful when comparing dual frequency records where the high and low frequency returns are plotted at very nearly the same depth 3 2 3 6 2 Per Pixel Transparency Again with two channels plotted simultaneously in one Window selecting Per Pixel Transparency results in the pixel with the highest intensity being displayed regardless of which channel is plotted as the top layer 3 2 3 6 3 Show Digitized Depth This function turns on the display of the selected channel s depth in the signal window 3 2 3 6 4 Orientation This feature determines the plot orientation of the data in the combined view Horizontal scrolling is usual for bathymetry data while vertical scrolling is normal for side scan data Q Page 24 of 28 to P Odom Hydrographic Systems Inc October 24 2008 eChart User Manual 3 2 3 7 Preferences DisplaySettings xj Channel 1 Channel 2 Channel 3 Combined View M Grid Lines Spacing Color Transparency M Major 5 n M Minor 1 00 Horizontal Scaling m Auto Zoom Mode Zoom to display all previous data
14. epth and the bottom Enter the initial speed of sound This is usually determined with a sound velocity probe like a Digibar If a sound velocity probe is not available enter an approximation or leave the default value The bar check procedure will produce the correct sound velocity as an end result Enter the measured draft how deep the transducer is as measured from the water surface to the transducer face If the transducer is hull mounted enter the known value The calibration procedure will determine the exact offset A Page 17 of 28 SS Odom Hydrographic Systems Inc October 24 2008 Fe eChart User Manual Bar Check Wizard Set Initial Channel 1 Channel 1 Values Index Sound Velocity Pia 1 Deploy the bar below the transducer to a depth of less than 5 meters and enter the bar s known depth 2 Set width of gate to eliminate returns other than bar Default 1 Digitized depth 3 Adjust index until digitized depth is equal to bar depth F mn 0 Draft i 1 50 El Deploy the bar below the transducer to a shallow depth Place the bar at least 1 meter 3 feet below the face of the transducer Keep the distance between the transducer face and the bar small to eliminate errors in the sound velocity entry The bar depth and width parameters instruct the Echotrac to only validate signals within this window in the water column eliminating signals from the seabed The Digitized depth value displayed is the dept
15. h the Echotrac is measuring Use the chart display to make sure the bar is visible in the record If the bar is not visible move the bar around until it is directly under the transducer In areas with current or wind this can be a challenge Once the measurements of the Echotrac on the bar are stable click on the Auto set button This will set the Index to the appropriate value so the depth from the Echotrac equals the bar Q Page 18 of 28 ta Odom Hydrographic Systems Inc October 24 2008 Pe eChart User Manual Bar Check Wizard Set Initial Channel 1 Channel 1 Values Index Sound Velocity a 1 Deploy the bar below the transducer to the deepest calibration depth and enter the bar s known depth 2 Set width of gate to eliminate returns other than bar Default 1 Digitized depth 3 Adjust speed of sound in water until digitized depth is equal to bar depth 20 Speed of Sound 1478 an Set the bar to the deepest possible depth and then enter the depth of the bar Getting the bar directly under the transducer can be a challenge but it is essential for a good bar check Once the Echotrac is measuring the bar click on the Auto Set button and the wizard will change the Speed of Sound until the measurement is correct The sound velocity required to measure the bar depth should agree closely with the sound velocity from the sound velocity probe If it does not then there is a problem with either the draft and index measurement or
16. hannel 1 MEE a9 File Settings View Help 5x mer 3 Open Record Device Settings Reset Zoom Mark Heave Line Tracking Gate Digitizer Line l Cursor Depth 0 61 3 2 3 3 Show Digitized Depth in Scope This check box determines whether the digitised depth from the Echotrac is displayed in the oscilloscope window to the right of the scrolling data 3 2 3 4 Track Bottom when Zoomed In When zooming in on a particular part of a record enabling this feature will keep the data corresponding to the Echotrac s bottom pick in the viewing area regardless of the zoom power used 3 2 3 5 Scale Offset This feature enables the operator to add a small voltage offset to the data before displaying it on the screen The feature is only useful for Echotrac units that can display the Full AC waveform data the units must be equipped with the 31RD Low Frequency Transceiver Card Compensating for small differences in the DC offset serves to Q Page 23 of 28 lC Odom Hydrographic Systems Inc October 24 2008 Pe eChart User Manual keep the AC waveform data Wiggle display centered in the color range and leads to a more easily interpreted record 3 2 3 6 Combined View DisplaySettings q x Preferences P Per Pixel Show Digitized Opacity Transparency Depth MV Channel 1 v v M Channel 2 _ v v MV Channel 3 a v E Orientation Bathymetry Horizontal v D
17. his menu sets the attributes such as colors and other preferences for each channel There are up to a maximum of three channels in an Echotrac so there are three tabs for selecting properties for displaying the data DisplaySettings Channel 2 Channel 3 Combined View Preferences Color Scale v Flip Color Scale Digitizer a Show Digitized Depth in Scope Display Gate Points v z lt C Track Bottom When Zoomed In Display Digitized Depth Points v MAA Scale offset gt 10 Default 0 Display Heave Line Points vi Q Page 21 of 28 le October 24 2008 P Odom Hydrographic Systems Inc eChart User Manual 3 2 3 1 Color Scale eChart offers four different color scales The rainbow color is usually the best for bathymetry data The grey is the more traditional record and it has a familiar look for both bathymetry or side scan data Amber is usually the reserved for side scan data The Linear Exponential drop down box employs the slider to the right of the box In the Linear mode the slider affects the linear offset of the color scale In Exponential mode the slider can add more emphasis to the either the lower amplitude data or higher amplitude data Exponential mode is good for highlighting objects in side scan data or bring out layers in sub bottom bathymetry data DisplaySettings Channel 1 Channel 2 Channel 3 Combined View Preferences Color Scale Exponential
18. on about Odom Hydrographic Systems Inc and eChart version FE o Odom Hydrographic Systems Inc Page 27 of 28 October 24 2008 eChart User Manual 4 FEATURES This section covers some of the features and helpful control of eChart 4 1 Zooming To zoom in or out of the data in one of the channel windows click on the window to make it active then either roll the mouse button or use the and keys to zoom If the check box in Settings gt Display gt Preferences gt Lock view together is checked all the windows will zoom together If the operator clicks on a channel window to pan backward in time eChart will stop displaying real time data However it will continue saving incoming data To start displaying real time data again either click on the reset zoom icon on the tool bar or click on the lower right had arrow in the channel window Q Page 28 of 28 ta Odom Hydrographic Systems Inc October 24 2008 Pe
19. redictable results when playing back the file 3 1 3 Convert DSO file to XTF EChart logs all its file to Odom s proprietary DSO file format This menu item allows the operator to convert these files to XTF extended Triton Format for playback and processing with other software packages DSO to XTF Converter Input DSO file c temp test test dso Output XTF file Hc temp testhout tf 3 1 4 Save Image Save Image will save the current screen to a bmp file This is useful for archiving a bar check or some other important feature 3 1 5 Print Allows the operator to print data that has been recorded on a standard Windows printer Q Page 10 of 28 lC Odom Hydrographic Systems Inc October 24 2008 Pe eChart User Manual Channel to print Curent Viewport Channel 2 vw Entire record Display filename Zoom Level Motes 3 1 5 1 Channel to print Channel to print selects which channel data to print 3 1 5 2 Current Viewport The Current Viewport will print only the current zoom level and data that is displayed on the screen A Page 11 of 28 lC Odom Hydrographic Systems Inc October 24 2008 Pe eChart User Manual ES Print preview 4S 00888 a Page 15 3 1 5 3 Entire Record The selecting the Entire Record command results in the printing of the record at the Zoom Level selected Page 12 of 28 a Odom Hydrographic Systems Inc October 24 2008 eChart User Manual
20. the eChart software the complete version with graphical display and a control only version that will run on a computer that does not meet the minimum specification below The minimum requirements for a personal computer to install and run only the ES3 software are Windows 2000 XP or Vista 512 MB of RAM 2 Gigabytes of free hard drive space Direct X 7 compatible video system with 64MB Video memory and current driver Pentium IV running at 2 GHz One Ethernet port Double Click the provided setup file to start the installation process An Install Shield wizard will guide you through the rest of setup process eChart is available from Start gt Programs gt Odom There is a short cut to the complete version of eChart and the device control version Q Page 9 of 28 CS October 24 2008 P Odom Hydrographic Systems Inc eChart User Manual 3 eChart MENUS 3 1 File 3 1 1 Open File The File Open command allows the operator to open files that have been previously recorded All recorded files are stored in the install_folder Odom eChart Recorded Data folder Files are stored in a dso format which is a proprietary file type Details of the file specification are available in the Appendix There is also an icon on the tool tray for this function 3 1 2 Record This will start recording files to the install_folder Odom eChart Recorded Data folder It is important that the operator not change the units of measure as this will produce unp
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