VWlog2 User Manual - Specto Technology
Contents
1. 6000 End Hz 6000 Excitation voltage v Excitation voltage v 5 5 v 4 SWEEP FREQUENCY RANGE EXCITATION VOLTAGE To change the sweep frequency range you can either click on the boxes of Start Hz and End Hz or click the button This will open a new window where you can select one of the pre defined sweep ranges or you can type in custom Start Frequency and End Frequency Once you have selected the sweep range click Apply to save the settings E Set Sweep Range m Start Frequency Hz End Frequency Hz Sweep 1 450 1125 Hz Reserved for future Use Sweep 2 800 2000 Hz Reserved for future use Sweep 3 1400 3500 Hz C Sweep 4 2300 6000 Hz Cancel Apply Soil Instruments recommend you consult the manufacturers manual for the recommended sweep frequency range for the particular instrument being used A narrower sweep band will produce a better quality signal You can select the 15 V DC excitation option if the sensor has a long cable As a guide a cable is considered long if it is over 200m 600 ft however Soil Instruments advise that you consult the manufacturers manual for the recommended excitation voltage for the particular instrument being used 25 Part V Maintenance Guide Contents This section contains the following topics SEE PAGE Maintaining the VWlog2 System2. ROUTINE MAINTENANCE BAT TERY MAINTENANCE VWlog2 is manufactured with multilayer circuit boards containing surface mounted components For this reason there are no parts which require routine maintenance other than the replacement of the batteries and recalibration of VWlog2 Ensure the protective cap of the USB port and cable glands are securely tightened so that VWlog2 remains watertight VWlog2 is powered by 2 x D Cell batteries VWlog2 battery status can be logged at regular intervals to monitor the battery levels avoiding loss of power and therefore loss of data by making sure you replace the batteries in a timely manner When replacing the batteries make sure you run all the start up tests to confirm that VWlog2 is fully functioning Take care to insert the batteries with the correct polarity make sure on the batteries corresponds with on the battery housing Battery life is dependent on the following factors e Battery type quality e Sensor reading frequency e Ambient temperature Soil Instruments advise that with both channels active two new D Cell alkaline batteries will keep VWlog2 in operation for two years while reading two Vibrating Wire VW sensors and two temperature sensors every hour The minimum voltage of VWlog2 is 2V but please be aware that this is for VWWlog2 only and not for any sensors attached to it Please refer to the manufacturers manual for your sensors for further informati
3. D Cell batteries into VWlog2 battery housing e Install Soil Instruments VWlog2 software provided on disc e Connect VWlog2 to your PC or laptop using the mini USB to USB cable e Create the configuration file using VWlog2 software e Send the configuration file to VWlog2 e Unplug the USB cable and replace the protective cap e Replace the top cover VWlog2 has no on off switch It will start reading and storing data as soon as the batteries are inserted e Remove the top cover of VWlog2 using a Phillips head screwdriver e Connect up to two Vibrating Wire VW sensors each can be with an optional built in thermistor temperature sensor to the wiring terminals in VWlog2 e Insert 2 x D Cell batteries into VWlog2 battery housing e Replace the top cover e Leave VWlog2 in a non submerged and safe location e Connect VWlog2 to your PC or laptop using the mini USB to USB cable e Use drag and drop to transfer the data file to your PC or laptop e View the data in a spreadsheet or text editor If using a text editor Soil Insruments recommends NotePad because it will display the lines in a more organised fashion using a column format Please refer to Part Il Detailed VWlog2 User Guide in this manual for more details Part Il Detailed VWlog2 User Guide Contents This section contains the following topics TOPIC SEE PAGE Connecting Sensors with Temperature Connecting Sensors without Tempe
4. RECOMMENDED PROPERTIES VALUE VALUE i Time in seconds between the readings i Not currently used i reserved for future use Not currently used i reserved for future use 15 16 AVAILABLE VALID RECOMMENDED Channel2 i Excitation Excitation i Voltage PROPERTIES VALUE VALUE Number of times to re take i the reading if the reading um_Retry otos frequency is beyond the 3 i i range between Hz_min i E OERE E AE A E E z_min 1700 G00 Swept freq min in Hz gt 1700 integer Z_max 1700 00 Swept freq max in Hz gt 6000 integer Voltage s 15 Excitation voltage in V 5 Z_min 1700 0 Swept freq min in Hz gt 1700 integer Z_max Tono Swept freq max in Hz gt 6000 integer Format of the Configuration File PROPERTIES SECTIONS The basic element contained in a CFG file is the property Every property has a name and a value delimited by an equals sign The name appears to the left of the equals sign name value The text value must be quoted by using double quotes name value The property names are not case sensitive and cannot contain space between characters If a property is skipped or is not included in the configuration file the default values of this property will be assumed Properties have been grouped into sections The section name appears on a line by itself in square brackets and A
5. and time sweep frequency range and excitation voltage VWlog2 is housed in a waterproof rugged die cast aluminium enclosure providing a rating of IP68 and all electronics are encased in an impervious sealing compound to avoid water damage With these features VWlog2 is ideal for long term and remote monitoring projects including those in harsh or damp environments Contents PART OVERVIEW Introduction Important information Product Changes Warranty Disposal System Description Things You Need to Know About VWlog2 Features Benefits System Components The VWlog2 Quick Start Guide Before You Go to Site When You Are in the Field When You Need to Collect Data PART II DETAILED VWLOG2 USER GUIDE Operating VWlog2 Inserting the Batteries Preparing VWlog2 and VW Sensors Connecting Sensors with Temperature Connecting Sensors without Temperature LED Sequence PART III GUIDE TO CONFIGURATION amp DATA FILES VWlog2 Configuration File Overview VWlog2 Configuration File Format of the Configuration File Properties Sections Line Terminators Spaces and Comments Contents of Configuration File xxxxvwl cfg Data File Overview Format of the Data File ee ee es es es tee SS SS SS SS SS OO O O Ey WS TSP AO TON Wey SS AAN N ce Oo ton ar ay S PART IV DETAILED SOFTWARE GUIDE 20 VWlog2 Software 21 Connecting VWlog2 to Your PC 21 Software Overview 2
6. is VWlog2 not working after have replaced the batteries Check that the batteries are new and have been inserted with the correct polarity The problem may be caused by cable damage or a bad connection from the battery housing to the wiring terminal You can check this by using a Multimeter to test the battery power If the batteries have full voltage but VWlog2 is still not functioning please contact our support team What sweep frequency range should I use for my Vibrating Wire VW sensors You should avoid using VWlog2 default sweep frequency range 1700 6000 Hz because it is too wide for good quality reading using zero crossing method Below is a table showing the sweep frequency ranges for various VW sensors manufactured by Soil Instruments This table is a reference for Soil Instruments VW sensors only for non Soil Instruments sensors please refer to the manufacturers recommended sweep frequency range Sweep Frequency Ranges for Soil Instruments Vibrating Wire Sensors SUPPORT www itmsoilsupport co uk 44 0 1825 765044 Soil INSTRUMENTS Bell Lane Uckfield East Sussex t 44 0 1825 765044 e info itmsoil com TN22 1QL United Kingdom f 44 0 1825 744398 w wwwaitmsoil com Soil Instruments Ltd Registered in England Number 07960087 Registered Office 5th Floor 24 Old Bond Street London W1S 4AW
7. terms and conditions of sale for warranty information The batteries are a consumable item and are excluded from the warranty Products marked with the jum symbol are subject to the following disposal rules in European countries e This product is designated for separate collection at an appropriate collection point e Do not dispose of as household waste e For more information contact Soil Instruments or the local authority in charge of waste management System Description Things You Need to Know About VWlog2 FEATURES BENEFITS e Reads two Vibrating Wire VW sensors and optional thermistor temperature sensors e 4MB internal memory reads up to 50 000 readings per channel equating to five years of data sampling at hourly intervals e IP68 rated rugged die cast aluminium enclosure e Low power requirement 2 x D Cell batteries last up to two years e Easy configuration and firmware upgrade via mini USB to USB cable e True USB interface data downloaded via drag and drop e Reads any user definable frequency sweep range between 1700 to 6000 Hz e Reads most types of commercially available Vibrating Wire VW sensors e Optional 15V excitation ensures quality readings from sensors with long cables e Ideal for long term monitoring in harsh and damp environments e Allows data collection immediately after sensor installation e Fast setup and download time e Versatile and economical e All electronics sealed to
8. 1 Software Functions 22 Logger Time 22 Logging Schedule 22 Channel 1 22 Channel 2 22 Load amp Send Configuration File 23 Creating the Configuration File Using VWlog2 Software 23 Retrieving Current Settings 23 Logger Time 23 Logging Schedule 24 VW Channel Setup 24 Sweep Frequency Range 25 Excitation Voltage 25 PART V MAINTENANCE GUIDE 26 Maintaining the VWlog2 System 27 Routine Maintenance 2 Battery Maintenance 27 PART VI APPENDICES 28 Appendix A Firmware Update 29 Appendix B Frequently Asked Questions 30 PRECISE AE SUIR instrumentation and monitoring Part Overview Contents This section contains the following topics TOPIC SEE PAGE Introduction Important information The following symbols are used throughout the manual IMPORTANT INFORMATION PRODUCT CHANGES WARRANTY DISPOSAL GAD QUESTION WARNING Important Failure to adhere to the warnings in this manual may result in network disruption and possible data loss Failure to observe the warning may result in injury product malfunction unexpected readings or damage to the product that may invalidate its warranty Tips give additional information that may be helpful when using VWlog2 Soil Instruments has an on going policy of design review and reserves the right to amend the design of their product and this instruction manual without notice Refer to our
9. 26 34 Sync logger time ta PC time f you click Sync logger time to PC time a dialogue box will ask you if you want to synchronise logger time to PC time Set VWlog2 Time Lid Do you want to synchronize logger time to PC time Yes No 23 LOGGING SCHEDULE VW CHANNEL SETUP 24 By clicking Yes the times will be synchronised and a dialogue box will inform you that the times have been updated VWlog2 x The VWlog2 time has been updated OK If you click No you will be returned to the main setup screen and the imes will not be synchronised The Reading Interval displays the time in seconds between the readings The default value is 3600 which equates to 1 hour The reading interval can be set to suit your monitoring requirements Logging Schedule Reading Interval seconds 3800 Timer starts at hh mrr Number of retries 0 Number of retries enables you to set the number of times VWlog2 will attempt to re take the reading if the reading frequency is beyond the range between Hz_min and Hz max You can set the number of retries between 0 and 5 The two channels are displayed separately in the main setup screen allowing you to configure the sweep frequency range and excitation voltage of each sensor Channel 1 Channel 2 Sweep frequency range Sweep frequency range Start Hz 1100 Start Hz 1700 End H
10. 3 22 00 29 01 2013 23 00 30 01 2013 00 00 30 01 2013 01 00 30 01 2013 02 00 30 01 2013 03 00 30 01 2013 04 00 30 01 2013 05 00 30 01 2013 06 00 30 01 2013 07 00 30 01 2013 08 00 30 01 2013 09 00 30 01 2013 10 00 30 01 2013 11 00 30 01 2013 12 00 30 01 2013 13 00 30 01 2013 14 00 30 01 2013 15 00 Serial Number Vbatt V 0x0003 2 7 23 2843 354 20 2 0x0003 2 7 23 2843 354 20 2 0x0003 2 7 22 9 2843 512 20 2 0x0003 2 7 23 2843 559 20 2 0x0003 27 22 9 2843 459 20 2 0x0003 2 7 22 7 2843 422 20 2 0x0003 2 7 22 5 2843 454 20 2 0x0003 2 7 22 4 2843 744 20 2 0x0003 2 7 22 2 2843 707 20 2 0x0003 2 7 22 1 2843 575 20 2 0x0003 2 7 22 2843 333 20 2 0x0003 2 7 21 9 2843 717 20 2 0x0003 2 7 21 8 2843 875 20 2 0x0003 2 7 21 8 2843 802 20 2 0x0003 2 7 22 2843 775 20 2 0x0003 2 7 22 3 2843 233 20 2 0x0003 2 7 22 9 2843 28 20 2 0x0003 2 7 24 2843 412 20 2 0x0003 2 7 24 2842 959 20 2 0x0003 2 7 23 6 2843 086 20 2 0x0003 2 7 23 7 2843 312 20 2 0x0003 2 7 23 9 2843 107 20 2 0x0003 27 23 9 2842 854 20 2 Board Temp C CH1 freq Hz CH1 temp C CH2 freq Hz 2006 615 2006 605 2006 487 2006 628 2006 447 2006 382 2006 426 2006 426 2006 395 2006 492 2006 4 2006 466 2006 397 2006 256 2006 28 2006 295 2006 534 2007 011 2006 78 2006 453 2007 819 2006 473 2006 191 CH2 temp C Flags 23 3 23 4 23 2 23 4 23 1 22 9 22 7 22 6 22 5 22 4 22 3 22 2 22 1 22 3 22 4 22 9 23 6 24 9 24 3 23 9 24 2 24 4 24 1 oococoocooco
11. 30 16 26 34 0 Sync logger time to PC time Dumber atrekos Channel 1 Channel 2 Sweep frequency range Sweep frequency range Start Hz 1700 Start Hz 17100 End Hz 6000 ea End Hz 6000 ce Excitation voltage V Excitation voltage V 5 z 5 z Send configuration to logger 21 22 Software Functions LOGGER TIME LOGGING SCHEDULE CHANNEL 1 CHANNEL 2 Logger time when connected to PC displays the date and time from VWlog2 when it is connected to your PC PC time displays the date and time from your PC This will be updated automatically Sync logger time to PC time synchronises the time from VWlog2 to the time from your PC Reading Interval seconds the time in seconds between the readings Timer starts at hh mm not currently used reserved for future use Timer ends at hh mm not currently used reserved for future use Number of retries the number of times VWlog2 will attempt to take readings if the measured reading is outside the set sweep frequency Logging Schedule Reading Interval seconds 3600 mer ends 4 mm Number ofretries 0 Sweep frequency range allows you to select the Start Hz and End Hz sweep frequency range for channel 1 Excitation Voltage allows you to select the excitation voltage for channel 1 5 or 15 V Sweep frequency range allows you to select the Start Hz and End Hz sweep frequency range for channel 1 Excita
12. Soil INSTRUMENTS Man 235 Soil Instruments Limited has an ongoing policy of design review and reserves the right to amend these specifications without notice Man235 VWlog2 MN0814 Rev1 0 0 What s this manual about This manual tells you about the two channel VWlog2 and how to use it to take readings Who does this apply to Installers field engineers and technicians who need to install commission and maintain a VWlog2 system Welcome Thank you for choosing VWlog2 This manual has been written to help you utilise all of the functions of VWWlog2 Please read this manual thoroughly before use to help avoid any problems and keep it handy when using VWlog2 VWlog2 VWlog2 is a two channel Datalogger which reads and logs most commercially available Vibrating Wire VW sensors and optional thermistor temperature sensors Data is stored as a CSV file onto the internal memory The VWlog2 contains 4MB of non volatile internal memory which is sufficient for up to 50 000 readings per channel equating to 5 7 years of data sampling at hourly intervals The internal memory in VWlog2 operates as a USB mass storage device which is accessible through a mini USB interface allowing data to be easily transferred from VWlog2 to aPC or mobile device via drag and drop using the same action as a file on the PC s hard drive The included VWlog2 software enables the user to easily setup the VWlog2 parameters such as date
13. connect the wires to the sensor terminals as shown in the WITHOUT following table TEMPERATURE E CC SENSOR SENSORTERMINAL SENSOR TERMINAL CONNECTIONS CHANNEL 1 CHANNEL 2 VW Sensor VW1 VW2 VW Sensor Not used Once Vibrating Wire sensors have been connected to VWlog2 ensure the cable glands are thoroughly tightened to maintain a watertight seal LED SEQUENCE Once the VWlog2 has been installed and the batteries inserted the following LED sequence will occur informing you of the logger status LED SEQUENCE DESCRIPTION LOGGER STATUS LED 1 Batteries inserted Logger Heartbeat flashing every 7 CE O O a es E nee r Solid red light based on reading E T ee ao o ee intera 3 Logger connected to PC Solid red light Your Logger is now ready to use Please proceed to the following sections Part Ill Guide to Configuration amp Data Files and Part IV Detailed Software Guide in this manual for details on how to configure the logger and use the software to retrieve data 13 Part Ill Guide to Configuration amp Data Files Contents This section contains the following topics TOR SEE PAGE VWlog2 Configuration File TB ee CN ae Re omen eee E ee _Wlog2 Configuration File 0 is Format ofthe Configuration File 00 6 Properties 16 Contents of Configuration File xxxxvwl cfg I SELENE SS OU ee ta E A ME oh ve Mian einen ares cnn eee ae Overv
14. iew 17 VWlog2 Configuration File OVERVIEW VWLOG2 CONFIGURATION BRICE he VWlog2 configuration file holds information on how and when the Vibrating Wire VW sensors are read The configurable parameters within the VWlog2 configuration file are as follows e Reading interval e Timer start not currently used reserved for future use e Timer end not currently used reserved for future use e Number of retries e Sweep frequency range e Excitation voltage The sweep frequency range and excitation voltage can be individually modified for both channels The configuration file is retrieved from VWlog2 and modified using Soil Instruments VWlog2 software Once the settings have been modified to suit your requirements the new configuration file is sent back to VWlog2 VWlog2 will use the new settings on the next data cycle Please refer to Part IV Detailed Software Guide in this manual for more details The VWlog2 configuration file is a text file that holds information on how the Vibrating Wire VW sensors are read The filename is xxxx cfg where xxxx is the VWlog2 ID four character serial number found on the silver label More details on the content and format of xxxx cfg are shown in the following table On power up VWlog2 reads the information in xxxx cfg and uses this information to read the sensors and save the data to its memory AVAILABLE VALID
15. ll properties after the section declaration are associated with that section There is no explicit end of section delimiter sections end at the next section declaration or the end of the file Sections may not be nested section The section names are not case sensitive and cannot contain space between characters If the same section appears more than once in the same file or if the same property name appears more than once in the same section then the last occurrence prevails LINE TERMINATORS SPACES AND COMMENTS CONTENTS OF CONFIGURATION FILE XXXXVWL CFG Data File OVERVIEW f there is propertie propertie f a sectio Semicolo Commen an unrecognised section name the entire section with all its s will be skipped Within a known section all unrecognised s will be skipped n is skipped or is not included in the Logger Configuration File he default values of all the properties in the section will be assumed Lines are terminated by a CR LF carriage return line feed ns at the beginning of the line indicate a comment comment text ts empty lines and spaces at the beginning of a line will be ignored The name of the configuration file is xxxx cfg where xxxx is the VWlog2 ID four character serial number found on the silver label An example of the VWlog2 configuration file is shown below Chan zm zm xcita fay a a A Chan Hz_m H
16. on 27 Part VI Appendices Contents This section contains the following topics SEE PAGE Appendix A Firmware Update You can update VWlog2 firmware locally The firmware will be supplied by Soil Instruments as a binary file with a hex extension The typical filename is xxxx hex To perform a firmware update 1 Rename the latest firmware file such as xxxx hex to image hex 2 Connect VWlog2 to the PC using a miniUSB to USB cabe o 3 Copy image hex to VWlog2 memory which appears as a removable drive T 4 DisconnectWlog2fromthePC 0 a 5 VWlog2 will now be updated to the new firmware 0 a 6 VWlog2 will then delete image hex from its memory 29 Appendix B Frequently Asked Questions Why is VWlog2 not showing as a removable drive on my PC or laptop Firstly make sure the mini USB is correctly inserted into VWlog2 When VWlog2 is connected to your PC a solid red light should be displayed to the right of the USB port If the mini USB to USB cable is correctly inserted but there is still no red light you may have a faulty USB port on your PC Check this by plugging into a different USB port if one is available alternatively try a different PC If after hese checks VWlog2 is still not connecting you may have a faulty mini USB to USB cable in which case you can try a different cable f the problem still persists please contact our support team Why
17. oocoocoooo0oo0oo0o0o000000000 FORMAT OF THE DATA FILE Date and time of reading i yyyy mm dd hh mm ss Sensor serial number i Serial Number There sensor serial number is displayed asa 0x000A i hexadecimal number Sensor reading from channel 1 in Hz i CH1 freq Hz i The value will be NAN if no sensor or the i reading is still outside the sweeping range eee i after retries Thermis or temperature sensor reading from CH1 temp C channel 1 in C oy 1 The value will be NAN if no sensor or the reading is beyond the normal range Sensor reading from channel 2 in Hz i The value will be NAN if the reading is still 3088 827 outside the sweeping range after retries Thermistor temperature sensor reading from CH2 temp C i channel 2 in C i The value will be NAN if no sensor or the reading is beyond the normal range Reserved for future use There are two other files to be aware of TIME TXT and xxxx LOG where xxxx is the VWlog2 ID four character serial number found on the silver label These files must not be moved or deleted and should be ignored by the user 19 Part IV Detailed Software Guide Contents This section contains the following topics TOPIC SEE PAGE VWlog2 Software Connecting VWlog2 to Your PC Software Overview VWlog2 Software CONNECTING Connect VWlog2 to
18. protect from static and water damage System Components THE VWLOG2 The VWlog2 is a rugged two channel Datalogger that will energise and read up to two Vibrating Wire VW sensors and optional thermistor temperature sensors and then store the readings internally for retrieval via a mini USB to USB cable All settings are stored in a configuration file that is uploaded to VWlog2 via a mini USB to USB cable Once uploaded these settings are saved internally and will be used until a new configuration file is uploaded Details of VWlog2 Top cover gt ty go oH 20 gt gt SOyy D Channel number SUS USB indicator indicator 1 Channel number Serial number indicator 2 USB protective cap Cable glands Soil Instruments recommends carrying out a functionality test before going to site After installing the software and sending the configuration file to VWlog2 wire in a Vibrating Wire VW sensor and allow VWlog2 to take several readings Download the data and check the readings and configurations are correct 10 Quick Start Guide BEFORE YOU GOTO SITE WHEN YOU ARE IN THE FIELD WHEN YOU NEED TO COLLECT DATA Take care to insert the batteries with the correct polarity make sure on the batteries corresponds with on the battery housing e Remove the top cover of VWlog2 using a Phillips head screwdriver e Insert 2 good quality 1 5V Alkaline
19. rature 12 Operating VWlog2 INSERTINGTHE The battery housing is accessed by unscrewing the four screws on the BATTERIES top cover of VWlog2 using a Phillips head screwdriver Once the lid has been removed the batteries can be inserted into the battery housing Take care to insert the batteries with the correct polarity make sure on the batteries corresponds with on the battery housing PREPARING Loosen the cable glands by turning the outer connection in an VWLOG2 AND anti clockwise direction VW SENSORS Strip the Vibrating Wire VW sensor cable making sure an adequate length of the internal cables are exposed to wire into the VWlog2 sensor terminals Only a competent person trained in the use of VWlog2 and Vibrating Wire sensors should connect the sensors CONNECTING Push the Vibrating Wire VW sensor cable through the cable gland and SENSORS WITH connect the wires to the sensor terminals as shown in the table below TEMPERATURE SENSOR i SENSORTERMINAL SENSORTERMINAL CONNECTIONS CHANNEL 1 CHANNEL 2 es Wsensort WI Wo oe Wsensor WI W2 os VWThermistor Tm me o VW Thermistor Tma 0 o me a Shield Shd o ooo Shd CS VWlog2 is only compatible with 3 K ohm thermistor temperature sensors It will not work with RTD based temperature sensors used by some manufacturers CONNECTING Push the Vibrating Wire VW sensor cable through the cable gland SENSORS and
20. tion Voltage allows you to select the excitation voltage for channel 2 5 or 15 V Channel 1 Channel 2 Sweep frequency range Sweep frequency range Start Hz 1100 Start Hz 1100 End Hz 6000 Ae End Hz 6000 ae Excitation voltage v Excitation voltage v LOAD amp SEND Load configuration from logger loads the current settings from CONFIGURATION VWlog2 to change the sweep frequency range FILE Creating the Configuration File Using VWlog2 Software RETRIEVING CURRENT SETTINGS LOGGER TIME Send configuration to logger sends the new settings to VWlog2 Send configuration to logger To start you will need to retrieve the current settings from VWlog2 by clicking on the Load configuration from logger button Once the current settings from VWlog2 are displayed the parameters can be modified to suit your requirements If there is not a configuration file in VWlog2 default values for all fields will be loaded Please refer to Part Ill Guide to the Configuration File and the Data File in this manual for more details You can only retrieve the settings from VWlog2 when it is connected to the PC via a USB port Synchronising logger time to PC time ensures that there is no time drift and enables you to update to daylight saving time Logger time Logger time when connected to PC j201 3 01 30 16 25 22 PC time 2013 01 30 16
21. your PC or laptop using the mini USB to USB cable VWLOG2 TO The mini USB port on VWlog2 is housed within a protective watertight YOUR PC cap which can be found on the right hand side of the unit When the VWlog2 is connected to your PC a solid red light will be visible next to the USB input Once connected VWlog2 appears as a removable storage device on your PC or laptop 4 Devices with Removable Storage 2 VWlog2 E ea 29 DVD RW Drive D 5 ke Me 3 62MB free of 3 71 MB If VWlog2 is scheduled to read a sensor the USB connection will be temporarily disrupted while the reading is taken This ensures that no data is missed during connection Once data has been successfully recorded the USB connection will be re established SOFTWARE Soil Instruments VWlog2 software helps you to modify the logger OVERVIEW configuration file The name of the configuration file is xxxx cfg where xxxx is the VWlog2 ID four character serial number found on the silver label When you start the software you will be presented with the setup screen The software version is displayed at the top of the form after the software name as shown in the screen shot below VWiog2 Software Version 1 0 0 ES soll Logger time Logging Schedule INSTRUMENTS L gger time when connededio EC Reading Interval seconds 3600 2013 01 30 16 25 22 Fee Or e T PCtime at hhmm 2013 01
22. z_m Excita VVlog2_V1 Config file 15 August 2014 Author Soil Instruments Schedule Reading_Interval 3600 Timer_start 00 00 not currently used reserved for future use Timer_end 00 00 not currently used reserved for future use Num_Retry 0 he external channel 1 VW Rod Ex The external channel 2 VW Rod Ex nel1 in 1700 ax 3400 tion_Voltage 5 nel2 in 1700 ax 3400 tion_Voltage 15 The data drag and editor on file is transferred from VWlog2 to your PC or laptop via drop and can be viewed via a spreadsheet or in a text your PC 17 18 If using a text editor we recommend NotePad because it will display the lines in a more organised fashion using a column format Once connected VWlog2 appears as a removable storage device on your PC or laptop as shown below 4 Devices with Removable Storage 2 a ba DVD RW Drive D VWilog2 E me 3 62 MB free of 3 71 MB When you open VWlog2 two data files are displayed a text document and a CSV file The files may be transferred to your PC or laptop by dragging and dropping The CSV file can be opened in Excel Name Date modified Type Size 0003 31 01 2013 10 17 Text Document 3 KB 0003DATA 31 01 2013 10 00 Microsoft Excel 3 KB Example of a data file Date Time 29 01 2013 17 00 29 01 2013 18 00 29 01 2013 19 00 29 01 2013 20 00 29 01 2013 21 00 29 01 201
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