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Geonics Limited EM61LX2 Operating Instructions Manual

Data logging system for field computer archer2
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OPERATING INSTRUCTIONS
EM61LX2 DATA LOGGING SYSTEM
FOR FIELD COMPUTER ARCHER2
EM61LX2
Version 1.16
June, 2020
G
L
eonics
imited
1745 Meyerside Drive, Mississauga, Ontario, Canada L5T 1C6
Tel: (905) 670 9580
Fax: (905) 670 9204
E-mail: geonics@geonics.com

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  • Page 1 OPERATING INSTRUCTIONS EM61LX2 DATA LOGGING SYSTEM FOR FIELD COMPUTER ARCHER2 EM61LX2 Version 1.16 June, 2020 eonics imited 1745 Meyerside Drive, Mississauga, Ontario, Canada L5T 1C6 Tel: (905) 670 9580 Fax: (905) 670 9204 E-mail: geonics@geonics.com...

  • Page 3: Table Of Contents

    Introduction ....................1 1.1 Program Requirements ................. 2 1.2 Installing EM61LX2 ................2 1.3 Data Files Transfer ................3 1.4 Running EM61LX2 Program ..............4 1.5 Main Menu ..................4 Short description of Main Screen options ...............5 Survey Setup ....................7 Logger Setup .....................

  • Page 5: Introduction

    GPS signal quality during data collection. The EM61LX2 program records data together with a time stamp at each station. Data files created with this program can be used to position a survey according to locations recorded separately by a Global Positioning System (GPS).

  • Page 6: Program Requirements

    Geonics EM61-LX2 The EM61-LX2 instrument with associated cables. The EM61LX2 program for Archer and Allegro MX is stored on DAT61LX2 CD disk. All neces- sary initial files (with extension names .INI) as well as data folder (DATA61LX2) are created in your field computer after the program is run for the first time.

  • Page 7: Data Files Transfer

    Folders for data files should be created in Storage folder. The program creates folder My Documents/ DATA61LX2 which is the default folder for EM61LX2 files. For more information about data storage options, refer to the Archer2 user manual. 1.3 Data Files Transfer Data files are saved in the Allegro with extension L61.

  • Page 8: Running Em61Lx2 Program

    1.4 Running EM61LX2 Program To run the EM61LX2 locate program in Program Files folder, or shortcuts in Start menu and tap the program icon. The EM61LX2 is a Windows Mobile based, button and dialog driven program designed to be simple to use. Although the program fully supports touchscreen interface, the keyboard entry available in Archer2 may be used in field applications.

  • Page 9: Short Description Of Main Screen Options

    GPS input and to specify necessary serial port communication settings. GPS monitoring window can be accessed from this dialog as well. Alarms Setup This option can be used to enable type of the alarm, and specify various parameters for alarm conditions. EM61LX2 Data Logging System (DAS70-AR2)
  • Page 10 The dialog which will allow you to specify colour and thickness of profile lines will appear. This dialog provides also choice of linear or compressed amplitude used for profile display. View Files This option allows to review data files saved in the field computer. Exit This option will terminate the program execution. Geonics Limited...

  • Page 11: Survey Setup

    Activate text box by tapping or using TAB key and then enter desired for the survey line increment. This parameter specifies the distance by which survey lines will be separated. This setting will be used to determine number (name) of the next survey line. EM61LX2 Data Logging System (DAS70-AR2)
  • Page 12 East, West, South, and North. This parameter indicates the heading of the survey line. Geonics Limited...
  • Page 13 To return to original settings (state before this dialog was selected) tap Cancel (X) button or press Esc key. All parameters will be reset to initial settings and the program will return to the Main Screen. EM61LX2 Data Logging System (DAS70-AR2)

  • Page 15: Logger Setup

    COM12. The program default is COM1. Communication parameters for the selected serial port are set by the program, since the EM61-LX2 operates at fixed settings: Baud Rate (9600), Parity (N), Data Bits (8), and Bit Stop (1). EM61LX2 Data Logging System (DAS70-AR2)
  • Page 16 (see Figure below). EM61-LX2 Type The EM61-LX2 can be used in a standard mode, meaning that readings include normalized for TX current, or in the N.C.C. (No Current Correction) mode where TX current nor- Geonics Limited...
  • Page 17 Default value for each filter factor is 310, and accepted range of filer is 100 to 900. Units Two selections are available: Meters or Feet. EM61LX2 Data Logging System (DAS70-AR2)

  • Page 18: Bluetooth Connection Of Em61-Lx2 And Archer2

    To setup Bluetooth connection for the first time select Settings from the Start menu and tap on the Connection icon and then Bluetooth icon (Figures below). After tapping on the Bluetooth icon the following screen will appear. Tap on the Add new device item. At that time the EM61-LX2 must be ON. Geonics Limited...
  • Page 19 In case the Display Name of the device is too long and will create problems while displaying as- sociated COM port number it may be convenient to re-name the displayed EM61-LX2 Bluetooth device. If renaming is not necessary please proceed to the last paragraph of this chapter. EM61LX2 Data Logging System (DAS70-AR2)
  • Page 20 The screen shows that during the setup port COM6 (for example) was assigned to the EM61-LX2 Bluetooth connection. This serial port must be selected in the Logger Setup dialog during all following program executions. Geonics Limited...

  • Page 21: Set Port For Gps

    LX2) and Set Output Port dialog, otherwise a message will be displayed and ports will have to be reassigned. If Bluetooth communication is employed between computer and GPS receiver please use serial port number that has been assigned by Windows Mobile operating system to the Bluetooth connection. EM61LX2 Data Logging System (DAS70-AR2)
  • Page 22 Tapping on the down arrow next to the text box labeled Stop Bits opens a drop-down box showing the available parameters, or when the keyboard is used activate this text box by pressing TAB key and then by using up or down arrow keys select one of available items. Geonics Limited...

  • Page 23: Monitoring Gps Receiver Output

    This screen is shown below. As soon as the EM61LX2 screen is in terminal mode and the GPS is streaming data, each message transmitted by GPS receiver will appear in the top portion of the display (the end may be cut off if an NMEA message is longer than screen).
  • Page 24 In addition, some GPS systems do not accept commands sent by the serial port at all. The configuration of these type of receivers can be updated only by the controlling device (usually GPS logger, controller, or the receiver panel keys). Geonics Limited...

  • Page 25: Alarms Setup

    5. Alarms Setup There are two types of alarms (not counting the third: Disabled) in the EM61LX2 program. The Simple Alarm is triggered whenever the indicated amplitude level is exceeded. The Enhanced Alarm contains numerous parameters that describe minimum and maximum levels, width of anomaly, number of descending points, and other parameters described below.
  • Page 26 Parameters described below can be selected only when the Enhanced Alarm is selected. When En- hanced Alarm is selected conditions for all set parameters must be reached to trigger alarm. Min. Level and Max. Level The target response amplitude must be between Minimum and Maximum specified levels to trigger alarm. Geonics Limited...
  • Page 27 Specify number of samples (1 or 2) that must be lower after the peak of anomaly. This option is used to avoid false alarm when the signal rises along the slope before reaching its maximum. Available selections are 1 or 2. EM61LX2 Data Logging System (DAS70-AR2)
  • Page 28 Set Output Port dialog. To return to original settings (state before this dialog was selected) tap Cancel (X) button or press Esc key. All parameters will be reset to initial settings and the dialog window will disappear. Geonics Limited...

  • Page 29: Display Options

    (see Figure below). Select thickness by tapping on the desired selection. If keyboard is used activate text box by pressing TAB key (till the box is highlighted) and then by using up or down arrow keys select one of available items. EM61LX2 Data Logging System (DAS70-AR2)
  • Page 30 TAB key and then by using up or down arrow keys select one of available items. Please note, that selection of graphic display does not affect readings saved in the data file. Data are always written to file in original form. Geonics Limited...
  • Page 31 Survey Setup dialog. To return to original settings (state before this dialog was selected) tap Cancel (X) button or press Esc key. All parameters will be reset to initial settings and the dialog window will disappear. EM61LX2 Data Logging System (DAS70-AR2)

  • Page 33: Logging Data

    The Monitor mode allows initial inspection of the range of the instrument readings at a particular site, monitoring the instrument performance, quick inspection of the condition of the instrument battery, reading scale, display mode, and setting zero level of the instrument. EM61LX2 Data Logging System (DAS70-AR2)
  • Page 34 Modulated Colour ribbon. In this mode Left windows cor- responds to the Left sensor and Right sensor is displayed in the right graphic window. In addition numeric values for each sensor are shown under corresponding windows: LE and LL (Left Early and Geonics Limited...
  • Page 35 RL that correspond to the right sensor are shown at the right side of the window. When the Filtered channel mode is selected then similarly program displays LF and RF (for left and right sensors). The EM61-LX2 readings are updated approximately 10 times per second during the monitoring session. EM61LX2 Data Logging System (DAS70-AR2)

  • Page 36: Description Of Monitoring Mode Options

    Menu (displayed below). Command buttons can be used by tapping on the desired button, or from the keyboard by pressing one of the shortcut keys (underlined characters on button labels) or by navigating using <TAB> key (sets button as a default button - default button is highlighted) and pressing <ENTER> key. Geonics Limited...
  • Page 37 Each data file in the field computer (raw data file) has an extension name LX2 and it is created in the directory specified in Create Data File dialog. The LX2 files are created in the EM61LX2 Data Logging System (DAS70-AR2)
  • Page 38 “Undo” function. If original values (without calculated offsets) of the EM61-LX2 readings are needed, exit the EM61LX2 program and run it again. The EM61- LX2 instrument does not have to be turned OFF. Null operation can be also performed later during data collection.
  • Page 39 Display Options (new options for profile plot display) This option is available only from pop up menu (accessible from Menu button) or directly from keyboard by using shortcut key <D>. EM61LX2 Data Logging System (DAS70-AR2)
  • Page 40 Stand By mode. To return to Stand By mode and current display options (state before this dialog was selected) tap Cancel (X) button or press Esc key, the dialog window will disappear. Geonics Limited...

  • Page 41: Stand By Mode

    (file name, survey line name, etc.), additional set of options in menu, and different two buttons (on the left): button File is replaced by GO and Null is replaced by Line. The logging window in Stand By mode in initial state (before any data is recorded) is presented below. EM61LX2 Data Logging System (DAS70-AR2)
  • Page 42 EM61-LX2 battery level in Volts (labeled B:). When fiducial marker is active a label M is displayed between station label and station value. In the Stand By mode the station number will not change. Stations in the EM61LX2 program are incremented by station increment value after each reading is written to the data file.

  • Page 43: Logging Mode

    Exit from the logging session and access to field options are available only from the logging window in Stand By mode. EM61LX2 Data Logging System (DAS70-AR2)

  • Page 44: Stand By Mode Field Options

    Line Sequence, Direction, Start Station, and Station Increment). The new line number and associated parameters are prompted by the program based on parameters specified in the Survey Setup menu. At the top of the dialog the last survey line name and the last logged station are displayed. Geonics Limited...
  • Page 45 Selecting this option allows the operator to enter a new station number (within the same survey line). The New Station dialog is displayed. Start and Current station are displayed at the top of the dialog. The New Station can be entered in the provided edit box labeled New Station. EM61LX2 Data Logging System (DAS70-AR2)
  • Page 46 However, there is no associated “Undo” function. If original values (without calculated offsets) of the EM61-LX2 readings are needed, exit the EM61LX2 program and run it again. The EM61-LX2 instrument does not have to be turned OFF.
  • Page 47 During data collection (in Stand By mode) a confirmation message will be displayed (there is no such message if Exit is performed in Monitoring mode) before program exits logging window. After above message is confirmed the program stops logging, closes data file and returns to Main Screen. EM61LX2 Data Logging System (DAS70-AR2)

  • Page 49: View Data Files

    (to cancel selection tap Cancel (X) button or press Esc key). After the file is opened readings taken at the beginning of the first survey line in the file are displayed, as shown below. EM61LX2 Data Logging System (DAS70-AR2)
  • Page 50 Channel labels are not displayed due to the small screen of the Archer2. Values of readings are displayed in the following order (from the left): Channel LE, LL, RE, and RL. The EM61-LX2 readings (in numeric form) are updated every time vertical bar is moved. Geonics Limited...
  • Page 51 -->> or key End moves display to the end of the currently displayed survey line, the right most station is a final station of the survey line, EM61LX2 Data Logging System (DAS70-AR2)
  • Page 52 To exit the View Files window tap the button labeled Exit (or from keyboard use shortcut key X or press key ENTER when the button is highlighted) to close file (if open). The program will return to Main Screen. Geonics Limited...

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