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Geonics Limited EM61MK2A, Руководство по эксплуатации

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29

EM61MK2 Data Logging System (DAS70/61MK2)

GPS reading is written to the data file. In the text mode number of  GPS positions follows label

DGPS

 (or 

AGPS

 positions are not differentially corrected), the corresponding label in graphic

mode is 

D

 (or 

A

). Small square moving up and down in Stand By mode indicates that the GPS

system is monitored and it is working. Two other GPS parameters: PDOP (represented by label 

P

)

and Number of  Tracked Satellites (label 

S

) are updated continuously in Stand By mode.

Several available field options are listed at the bottom of  the Stand By mode screen. They will be

described in the following section 12.5.

Logging Mode

The Logging mode is enabled by pressing the <

ENTER

> key, which corresponds to label 

Start

 in

the Text Display, and 

GO

 in the Graphic display mode. After this key is pressed the bottom portion

of  the screen will change and data will be logged in the mode corresponding to the selected EM61-

MK2 mode in the Survey Setup menu. Log Data screens in logging mode in the text (on the left)

and graphic (on the right) display modes are presented below.

After the screen changes to Logging mode current station (

Stn

 in Text and 

St

 in Graphic display

mode) is updated according to the station interval. Similarly, if  GPS Input was enabled,  total

number of  GPS positions in the data file is incremented every time (usually once a second) GPS

position is written to the file. If  the Graphic display mode is enabled profiles (or profile) curves are

updated after each reading is written to the data file. The audible click sounds at each reading if

Sound option was enabled in the Setup Logger menu.

There is only one option available in the Logging mode - pause logging. After a Pause key (any key,

Alt+F1, or Ctrl+F5) selected in Logger Setup menu is pressed the recording is stopped and the

Log Data menu returns to the Stand By mode. The EM61-MK2 data will be displayed with the

update rate approximately 10 readings per second, however data will not be saved in the log file,

audible click will stop if  Sound option was enabled, and if  graphic mode is used, profile curves will

be not updated.

Exit from the logging session and access to field options are available only from the Log Data

menu in the Stand By mode.

Содержание EM61MK2A

Страница 1: ...issauga Ontario Canada L5T 1C6 Tel 905 670 9580 Fax 905 670 9204 E mail geonics geonics com Geonics Limited February 2005 Version 2 20 EM61MK2 DATA LOGGING SYSTEM FOR FIELD COMPUTER AllegroFieldPC OPE...

Страница 2: ......

Страница 3: ...Port for GPS 15 9 1 Monitoring GPS Receiver Output 16 10 Set Output Port 18 11 Advanced COM Setup 19 12 Acquiring Data Menu and Logging 21 12 1 Create File Menu 21 12 2 Survey SetUp Menu 22 12 3 Surv...

Страница 4: ...54 C 1 Performing Hard Reset in Allegro and Pro4000 54 C 2 Panning the Display in Allegro and Pro4000 54 C 3 Operating DOS in Allegro 54 C 4 Short Overview of Programs FileScout ProShell and Lynx 54 C...

Страница 5: ...erator It also records various field information such as survey line number line name starting station increment comments etc Readings can be displayed in text or graphic mode Readings are displayed i...

Страница 6: ...es 2 1 Contents of EM61MK2A disk 2 1 Contents of EM61MK2A disk 2 1 Contents of EM61MK2A disk 2 1 Contents of EM61MK2A disk 2 1 Contents of EM61MK2A disk The program EM61MK2A is stored on DAT61MK2 CD d...

Страница 7: ...s are made using the Up Down arrowkeys The selected option is highlighted and can be executed bypressing ENTER key Left and Right arrowkeys are used to edit selected parameter When editing Up or Down...

Страница 8: ...r Null ThisoptionallowstomonitortheEM61 MK2outputandoptionallytonulltheinstrument performInternalandExternalQCcoilcalibration andcheckavailablememoryandbattery level of the logger Acquiring Data Execu...

Страница 9: ...rogram View Files The program will display list of available data files that can be reviewed Delete Files This option allows to delete permanently not needed data files from the field computer disk Ex...

Страница 10: ...sumed that the instrument is turned ON prior to using this option In case the instrument is OFFortheinstrumentconsoleisnotconnectedtothecomputerthefollowingmessagewillappear Check the connection or tu...

Страница 11: ...Positioning System indicates lackof differential correction On the right side of DGPS or AGPS label small square is displayed This square should move down and up with the frequency of GPS update rate...

Страница 12: ...calculated offsets of the EM61 MK2 readings are needed exit the EM61MK2A program and run it again The EM61 MK2 instrument does not have to be turned OFF Null operation can be also performed later dur...

Страница 13: ...be displayed AfterpressinganykeytheprogramreturnstoMonitoring Nullingmanu Torepeat Internal QC coil calibration please press keyI again The logger will determine if the instrument has passed test If...

Страница 14: ...K2 readings This display lasts for 60 seconds Duringthistimepleasefollowtheinstructionsprovidedonthe Allegro screen Calibration can end in the following four ways The process can be stopped by ann ope...

Страница 15: ...where the amount of available memory in the logger is less than 10 Kbytes the program will stop data file will close and a proper message will be displayed Battery Check After key B is pressed a smal...

Страница 16: ...rsinthelogger TheLoggerSetUpmenuispresented below Description of Parameters Date This option allowsyou to change the date in the field computer clock When the option is highlighted pressing the ENTER...

Страница 17: ...ychanges Units Two selections are available Meters or Feet COM Port The number of serial portthat is assigned to the EM61 MK2 Available selections COM1 and COM 2 The program default is COM1 Communicat...

Страница 18: ...lected five additional parameters are activated see menu below Parameters Ch1 Ch2 Ch3 and Ch4 applies to Ch T as well allowyou to enable Yes or disable No display of each channel separately while the...

Страница 19: ...e data file will contain proper sequence of EM61 MK2 readings without any GPS input COM Port The number of serial port that is assigned to the GPS input Available selections COM1 and COM 2 The program...

Страница 20: ...ram will display the screen in terminal mode In this mode the screen is divided into three parts The top portion of the screen labeled Receive GPS Data displays the GPS receiver output The middle port...

Страница 21: ...display of GPS data The function key F2 allowsyou to send a NMEA command to the GPS receiver It is preferable if the GPS receiver parameters are set using the GPS manufacturer software or controller...

Страница 22: ...ut string Raw Data or Converted The RawDara format indicates that the string will be sent in binaryformat 22 bytes long records and the format is exactly the same as the raw data file format R61 descr...

Страница 23: ...Setup 11 Advanced COM Setup 11 Advanced COM Setup 11 Advanced COM Setup 11 Advanced COM Setup TheAdvancedCOMSetupmenu presentedbelow allowsforspecifyingparameters of eachselected serial port To selec...

Страница 24: ...ase address is usuallydisplayed during rebooting Allegro and Pro4000 see Appendix D Please note that any names from COM1 to COM12 can be specified in proper menus as long as correct parameters address...

Страница 25: ...rvey setups will be displayed Each survey setup can be edited and saved by the user for later use LOGDATA This option is used for actual monitoring and logging EM61 MK2 data Main Menu The program retu...

Страница 26: ...ey can be viewed using the Main menu option View Files These files can be also converted to ASCII format and processed in the Geonics program DAT61MK2 12 2 Survey Setup Menu 12 2 Survey Setup Menu 12...

Страница 27: ...nlytwo options Positive or Negative Wheel Mode Readingswillbetriggeredautomaticallybyacounterattachedtothewheel Wheel increment is approximately 20 cm or 0 64 foot for the EM61 MK2 equipped with 1 x 0...

Страница 28: ...r a given field computer Thereal speed of datacollection in Automode depends on the fieldcomputer used and display type In general displaying data in the text mode allows for faster data collection an...

Страница 29: ...ationIncrementtocalculatethecurrentstationnumber for display purposes Use Down or Up arrowkey to leave editor Stn Incr station increment When this option is highlighted press Left or Right arrowkey to...

Страница 30: ...for the EM61 MK2 Manual mode To select any survey set up number use Down and Up keys and to start editing particular Survey Setup menu press ENTER Press Esc key to return to the Acquiring Data menu Af...

Страница 31: ...ion In case instrument is OFF or the instrument console is not connected to the field computer the message shown below will appear Check the connection or turn the instrument ON and select the LOG DAT...

Страница 32: ...s divided byfour or five dotted grid lines In the case where the amplitude scale starts with a negative value then the grid line corresponding to zero is always plotted as a solid line Readings for ch...

Страница 33: ...ft and graphic on the right display modes are presented below After the screen changes to Logging mode current station Stn in Text and St in Graphic display mode is updated according to the station in...

Страница 34: ...are Nulling Internal QC Coil Calibration External QC Coil Calibration Memory Check BatteryLevel for logger Delete Reading and New Station F1 New Line This option is labeled NLine in the Text display...

Страница 35: ...ode on the left and in the graphic mode on the right are given below Selecting this option allows the operator to enter a new station number In the Text mode Start Station and Current Stations are dis...

Страница 36: ...anditislabeled N TheLog Data screen with the entrybox for New Scale parameters is given below Selecting this option allows the operator to enter new scale parameters for the amplitude display After mi...

Страница 37: ...5 readings and calculates the instrument offset The calculated offset is applied to all the readings that follow this operation If needed thisprocedurecanberepeated severaltimesuntilsatisfactoryresult...

Страница 38: ...il button was not pressedorthisactiondidnotactivateQCcoil seefollowingFigures Afterpressing anykeytheprogramreturnstoMonitoring Nullingmanu Torepeat InternalQC coil calibration please press keyI again...

Страница 39: ...han5seconds theExternal QC coil Calibration screen is displayed This screen displays timer with elapsed seconds and EM61 MK2 readings This display lasts for 60 seconds Duringthistimepleasefollowtheins...

Страница 40: ...In cases where the amount of available memory in the logger is less than 10 Kbytes the program will stop data file will close and a proper message will be displayed B Battery Check After key B is pre...

Страница 41: ...Data File Formats 14 1 Data File Formats 14 1 Data File Formats 14 1 Data File Formats 14 1 Data File Formats Data files in the field computer are formatted in proprietary EM61MK2 format The EM61 MK2...

Страница 42: ...rFileswillcontain after the List Files button is clicked a list of data files located in the field computer and available to download File names with their size in bytes will be displayed as well The...

Страница 43: ...DAT61MK2 executions If this directory is removed the C directory will be used instead Change of the port assignment can be done byclicking the Downarrowbutton in the field labeled Current Port The pu...

Страница 44: ...time elapses repeat the procedure On the computer clickthe List Files button in the Download EM61MK2 Files window Atthat time both programs EM61MK2A and DAT61MK2 will establish and test the communica...

Страница 45: ...ayed at the bottom of the window as it transfers and a progress bar indicates the percentage completed as shown in the following Figure At the same time the logger screen displays transmitted file nam...

Страница 46: ...ncel communication with logger The Download EM61MK2 Fileswindowwillremain on the screen and next datatransfer session i e fromanotherlogger can be performed Clicking the Exit button will stop Data Tra...

Страница 47: ...key is used to show next station NextStn and the Left arrow key will move display to previous station PrevStn readings Survey lines can be changed bypressing Down and Up arrowkeys The Down arrowkey wi...

Страница 48: ...pressed the file will be permanently deleted from the field computer memory WhenkeyN is pressed the confirmation prompt disappears and displayshows the list of available data files Exit the Delete Fil...

Страница 49: ...program The speed can be furtherimproved bysettinghigherBaudRate if it is supported bytheemployed GPS receiver in Set GPS Port menu The EM61MK2A dedicates one line of the displaytoshowGPSstatus Alabel...

Страница 50: ...est longitude n Quality indicator 0 no position 1 raw no differentially corrected position 2 differentially corrected position 9 position computed using almanac information qq Number of satellites use...

Страница 51: ...in seconds Offset offset for indicated channels in mV IC QC coil calibration N not performed Notherwise QC coil value value of QC coil calibration for indicated channels in mV 10 Line Feed character...

Страница 52: ...r Gn one character parameter Hex format contains Gain see table of ranges at the end of this section 1h higher byte of the 2 s complement Hex number of Channel 1 1l lower byte of Channel 1 2h higher b...

Страница 53: ...The GPS sequence may contain 5 or 6 records Component of the GGA message may differ in length however they are placed in the same number of columns Refer to Appendix A section A 2 for definition of e...

Страница 54: ...ard Unit Mode D Two Sensors 1 x 0 5 m or 1 x 1 m Top and Bottom coils Channel 1 DATA1 x 4 8333 x 2 RANGE Channel 2 DATA2 x 4 8333 x 2 RANGE Channel 3 DATA3 x 4 8333 x 2 RANGE Channel T DATA4 x 4 8333...

Страница 55: ...10 1 10 100 4C 10 1 100 1 4D 10 1 100 10 4F 10 1 100 100 50 10 10 1 1 51 10 10 1 10 53 10 10 1 100 54 10 10 10 1 55 10 10 10 10 57 10 10 10 100 5C 10 10 100 1 5D 10 10 100 10 5F 10 10 100 100 70 10 10...

Страница 56: ...10172000 20 02 34 O 354 56N 0 00 O 134 94N 0 00 O 58 97N 0 00 O 20 39N 0 00 F Y g JO20024276 F Z3 JO20024336 F Z MO20024347 F X NO20024358 GPGGA 000230 00 433 6 59281 N 07936 6513 3 W 2 7 1 139 93 M 3...

Страница 57: ...GPGGA 214244 00 4336 59338 N 07936 65082 W 2 7 1 139 39 M 35 M 4 118 5C 16 43 44 810 E 4 00 173 31 85 18 39 15 129 80 16 43 44 970 E 5 00 167 73 86 50 40 46 125 44 16 43 45 470 GPGGA 214245 00 4336 59...

Страница 58: ...Overview of P C 4 Short Overview of P C 4 Short Overview of Programs FileScout P rograms FileScout P rograms FileScout P rograms FileScout P rograms FileScout ProShell and L roShell and L roShell and...

Страница 59: ...e contents of the Allegro or Pro4000 Field Computer will be displayed in the Lynx bottom Remote view screen T T T T Transferring Files to the Allegro from the PC ransferring Files to the Allegro from...

Страница 60: ...e C drive The file on the C drive is used by the Pro4000 during boot up Therefore CONFIG SYS on drive C has to be modified using a text editor or more conveniently option F2 in the program ProShell Pr...

Страница 61: ...100 is in hexadecimal notation and resides on an even 32 byte 20H boundary This address is assign to the first serial port of the card a first left cable see Figure B 1 The following ports require 8 b...

Страница 62: ...m ProShell ProShell is activated by typing ps at the DOS command prompt The following procedure can be used to install the SSP 100 Client Driver in Allegro Pro4000 CopythefileSSP100CL COMfrom the SSP...

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