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1. 81 water temperature 18 C LP ms Ertacetal 3 8 Water 81 water temperature 18 C For non standard probes the user can chose the calibration media by himself using data from Table 3 He should be aware that the measured values 11 of dielectric constant should be between the low and high values of calibration media dielectric constants to minimise the measurement error Table 3 Calibration media for non standard field FP mts and laboratory LP ms probes Dielectric constant values and the temperature dependencies are taken from Handbook of Chemistry and Physics CRC 2002 Medium Dielectric constant Temperature dependence Water 80 1 T 293 2 K E 0 24921E3 0 79069 T 0 72997E 3 T 2 273 lt T K lt 373 Benzene 2 28 T 293 2 K 0 26706E1 0 91648E 3 T 0 14257E 5 T 2 293 lt T K lt 513 Acetone 21 01 T 293 2 K E 0 88 157E2 0 343 T 0 38925E 3 T 2 273 lt T K lt 323 Metanol 33 T 293 2K 0 19341 E3 0 92211 T 0 12839E 2 T 2 177 lt T K lt 293 Ethanol 25 3 T 293 2K 0 15145E3 0 87020E1 T 0 19570E 2 T 2 177 lt T K lt 293 Teflon 2 5 Ertacetal 3 8 Measure salinity The handheld device is asked to perform the salinity measurement It takes about 1 second to complete the measurement During the process the user is asked not to disconnect the USB cable from the handheld device It is most advised not to remove the probe from the measured sample in order to rec
2. It contains several elements for working in the modes mentioned above The pushbuttons and entry fields have hints that appear on the screen when the mouse pointer is over it The first thing the user should do 1s to select the appropriate serial port and mark it on the Select ComPort menu item The correct port for selection can be determined from Fig 3 and its description on page 8 Then the user should press search devices to communicate and confirm connection with the device A proper connection is marked by appearing the serial number of the connected device in the field with a hint choose serial number of connected devices It is planned to connect several TDR MUX mpts dlog devices in chain by serial RS485 link However at the moment of editing the current Manual only one device is controlled by the DL100 exe application Synchronizing the device with PC computer clock The device contains internal real time clock that should be synchronized with the PC computer clock This is done by pressing Set Date Time pushbutton and the current date and time will appear above this pushbutton When the POWER LED is ON the device is busy and it cannot complete the command The user should repeat pressing the POWER button to update the date and time of the device Another pushbutton Read Date Time serves for checking the effect of this operation ZA iL Data Logger 1 0 Select Com Port CHANNEL CONFIGURATION T AUM T AU FP w TFGHB
3. 0 5 C or less if read from individually calibrated probe el conductivity relative error 10 for 0 1 S m or less 1f read from individually calibrated probe resolution of readings volumetric moisture 0 1 temperature 0 1 C el conductivity 0 001 Sm time of test less than 5 s ambient temperature of work 0 50 C dimensions 180 x 85 x 58 mm weight 0 35 kg with battery battery charger automatic overcharge safe wall charger Maintenance The meter is not user serviceable No special maintenance means are required If the apparatus is to be stored recharge the battery each three four months Temperature of storage 10 50 C FOM mts operation External connections There are three external connections to the FOM mts device which are easy to recognize by the user At the top there is a SMA coaxial jack for connecting FP mts probe At the bottom there are two connectors USB socket for cable connection of the device to the PC computer and battery charging socket for connection of the supplied battery charger ZI 10W Output 6VDC S500mA Battery supply and battery charging Battery compartment contains Lithtum Polymer rechargeable 3 6V battery of 1 5 Ah capacity It can be easily detached from the device enclosure for replacement The fully charged battery can perform about 1000 measurements that can be stored in the internal memory of the device In case of dead battery
4. Read date Shows the date set on the handheld device in the log field in the program main window During the process the user is asked not to disconnect the USB cable from the handheld device Read contrast Shows the contrast set on the handheld device in the log field in the program main window During the process the user is asked not to disconnect the USB cable from the handheld device Read supply voltage Shows the voltage supply on the handheld device in the log field in the program main window During the process the user is asked not to disconnect the USB cable from the handheld device 15 Memory banks menu Commands used to read data stored in the data banks in the handheld device The data consists of a set of previous performed measurements saved by the user in handheld devices memory banks Stored data points Displays the amount of measurement results stored in each data bank in the log field in the program main window It is possible to store up to 300 measurement results in each of three data banks During the process the user is asked not to disconnect the USB cable from the handheld device Read data bank Displays the data stored in the selected data bank in the log field in the program main window During the process the user is asked not to disconnect the USB cable from the handheld device Save data bank Saves the data stored in the selected data bank in the text file The user is asked to choose the name of
5. it is strongly recommended to order a new battery compartment in the FOM mts producer or distributor Charging of the device battery is automatic 1 e the battery charging terminates automatically and the charging current is adjusted to the battery charging state and the charging period does not usually exceed 3 hours The 33 user 1s recommended to observe the of the battery state icon on the right top side of the LCD display Fig 22 63m i a percent b percent of full charge of full charge not charging charging Fig 22 Information icons on the LCD display about the state of battery in the work mode a and in the charging mode b Manual operation The operation of the FOM mts handheld meter working in manual mode will be presented below in Table 7 In this mode the user controls the device by means of a simple keyboard Fig 21 having four arrows and OK pushbuttons as well as the LCD display showing text information and commands available at the moment Table 7 Information and commands in the LCD window of the device Pushing the OK button invokes this screen To turn the device on follow the command The device will turn off automatically and the screen disappear if you will not follow the command for about 20 seconds PRESS AND HOLD ORKR BUTTON This screen appears after holding the OK button for about 3 seconds It contains the names of the device and the producer After about 5 seconds the
6. 0010AD Measurements and GPRS communication time schedule Probes measurement and GPRS communication schedules are defined by the user in Data bookmark after pressing Edit configuration file hyperlink in the window presented in Fig 11 The description of this window is presented in Table 5 and the following pages Table 5 Setting of measurement and GPRS transmission time schedule Name GPRS connection table Application version Delay between measurements Offset to first measurement System log level Description Presents time in hours when the GPRS communication is initiated by MIDL 2 The hyperlink switches to the GPRS connection table editor Fig 13 Version of the server software Time in seconds between the beginnings of subsequent script file executions Time distance in seconds between the scheduled start of the script file execution and real execution to avoid collision in time with GPRS connection Level of tracing the execution of the measurement script file and GPRS communication higher level means more detailed tracing 54 E http midLipan lublin pl 8080 midlmanager data mainconfig jsp dir test_ugt Microso File Edit view Favorites Tools Help Q sak X gt x a A P Search K Favorites g2 Address E http jimidi ipan lublin pl 8080 midlmanager data mainconfig jsp dir test_ugt Multi Interface Data Logger Logged Firstname Lastname Current directory test_ugt Edit confi
7. LP t laboratory probe for soil temperature LP p LABORATORY MINIPROBE FOR SOIL WATER CAPILLARY PRESSURE LP p Fig 29 is a laboratory miniprobe designed for monitoring instantaneous profiles of soil water capillary pressure matrix pressure suction force in soil columns or in undisturbed soil cores sampled with standard sampling equipment S ee ah p h pressure transducer o ring ceramic cup E 7 i par s guide clamp nut Fig 29 LP p laboratory miniprobe for soil water capillary pressure The wall of a cylinder containing the soil core is provided with tapped holes 8 mm diameter A guide is screwed into the hole prior to the probe installation This guide helps to avoid air gaps between the ceramic suction cup and the soil which otherwise might result while inserting the probe into the soil LP p is pushed into the soil core and fixed with a clamp nut Several LP p can be inserted through the wall of a soil column or a steel sampling cylinder thus allowing for vertical scanning of the instantaneous water pressure profiles see below Such an array when combined with similarly installed miniprobes for soil moisture see the LP ms flyer makes it possible to collect a set of corresponding water content and matrix pressure data from drying or wetting front transition 40 Fig 30 Reading instantaneous profiles of soil water capillary pressure moisture and salinity from arrays of the LP
8. mpts devices performs measurement on selected probes stores the received data in the non volatile memory and enters the sleep mode again Features of TDR MUX mpts device number of channels o for soil moisture TDR method electrical conductivity salinity and temperature using an integrated FP mts probe and or LP ms 8 o AUX port for soil temperature using LP t and or soil matrix pressure using LP p probes up to 16 probes connected in parallel operates with probes with different cable lengths from 1 5 to 9 5 m connection by USB interface with PC compatible computer for the experiment control and data transfer pulse sin like needle pulse having 200 ps rise time range of readings o volumetric moisture 0 100 o temperature 20 50 C o electrical conductivity 0 000 1 S m accuracy moisture absolute error displayed water content 2 or less if the measured soil is individually calibrated o temperature absolute error 0 5 C or less if read from individually calibrated probe o el conductivity relative error 10 for 0 1 S m or less if read from individually calibrated probe resolution of readings o volumetric moisture 0 1 o temperature 0 1 C o el conductivity 1 mSm time of test of a single FP mts probe moisture 2 s temperature 5 s electrical conductivity 2 s time of test of a single LP ms probe moisture 2 s electrical conductivity DS time of test of a single LP t o
9. mts device The calibration configuration and test measurement window for FOM mts handheld device is presented in Fig 6 Using this window the user can perform selection of current measurement probe from the earlier calibrated ones calibration of standard and non standard field FP mts or laboratory LP ms probes measurement moisture salinity electrical conductivity temperature and displaying the received reflectogram Fig 8 collection of data stored in the internal memory banks of the device The length of parallel waveguide rods in non standard probes differ from the standard ones 10 cm for FP mts and 5 2 cm for LP ms Temperature and electrical conductivity measurements with standard FP mts and LP ms probes are factory calibrated Calibration of standard and non standard FP mts and LP ms probes for TDR soil moisture measurements consists of the determination of three elements probe length defining the coaxial cable length between the device and the TDR sensor and fixing in time the beginning of the TDR sensor on the cable i e the first negative reflection presented in Fig 8 length of the sensor rods dead time 1 e the time the TDR pulse travels the double length from the first negative marker and the beginning of the probe rods These values are calculated by the device on the base measurements of a FP mts and LP ms probes in two media of various dielectric permittivity Probe type and p
10. p and LP ms miniprobes From the collected data set after further processing one can obtain a complete set of the unsaturated water flow characteristics of the soil that is water retention pF curve unsaturated water conductivity k function differential water capacity and unsaturated water diffusivity Features of LP p probes Sensor pressure diaphragm a 15 mm long ceramic cup 3 mm in diameter pressure transducer an integrated fully active Wheatstone bridge with four piezoresistive strain gauge resistors diffused into a silicon diaphragm o air entry pressure about 900 mbar offset drift 20 mbar month relative error 15 resolution 1 mbar delay 0 to 800 mbar in about 120 s 800 to 0 mbar in about 3 s cable length 2 m installation hole 8 mm diameter tapped with 8x1 mm thread 41 APPENDIX 1 WATERING OF LP P PROBES Watering LP p under vacuum fo vacuum pump Kaap the setup as shown under vacuum until bubbling minimizes 15 30 minutes After the vacuum pump is disconnected Ga Fill in the inside of the pressure transducer with demineralized and daa araled water Make sure that the needia tip gently louches the diaphragma Energically stream water forth until bubbles of air disappear A jel will force the needle out Go not ailow that Put the probe together preventing entry of air To scraw the laments together use force of your finge
11. the measurement system and updating the Select device Combo Box importing the assignment of probe types FP mts or LP ms in the individual channels of each device and updating the Probe type selection it is inactive in this window searching for 1 Wire probes connected to AUX port for further selection by the user After selecting the current device in the Select device Combo Box the user determines which values will be measured in the channels associated with LP ms and FP mts probes The FP mts probes measure soil moisture 0 electrical conductivity o Sm and temperature T C and all of these variables may be selected The LP ms probes measure only and o and selection for temperature is inactive for this type of probe Each channel has two associated AUX positions for the measurement of probes connected to the device by 1 Wire link i e LP t temperature and LP p soil matrix pressure probes When the user assigns the particular 1 Wire probe to the channel it cannot be selected again for other channels The example selection from Fig 11 shows that the device with the serial number TLIAOSFE has all channels equipped with LP ms probes with selected dielectric permittivity soil moisture and electrical conductivity measurement 21 values active and two AUX probe in the 1 channel for temperature and soil water matrix potential measurements Time period between the measurement series When all required probes have
12. the GPRS connections setting marked in Fig 13 has an offset in minutes set by the user The increase of GPRS connection frequency will significantly increase power consumption of the remote measurement system which is important in case of battery power supply From the other hand frequent updating gives the user near real time information from the remote experiment 56 N References FOM mts and TDR MUX mpts Manual Institute of Agrophysics PAS Lublin 2006 MIDL Data logger for field monitoring of soil and ground physical and chemical parameters Operation Manual Institute of Agrophysics PAS Lublin 2004 Skierucha W Wilczek A Walczak R T Recent software improvements in moisture TDR method matric pressure electrical conductivity and temperature meters of porous media International Agrophysics 20 189 193 2006 7
13. the button Connection is now established You can perform any task from the menu or buttons in the programs main window How to perform the calibration 1 Connect the device with the terminal 2 Choose the Calibration menu and click the calibration method you want to execute Cable length calibration or Full probe calibration 3 Follow the guides that will be displayed in message windows The probes are now ready for performing any requested measurement How to read banks memory l 2 3 Connect the device with the terminal Choose the Memory banks menu After clicking the Stored data points button the amount of data stored in each memory bank will be displayed in the program log it is not necessary to check it before reading the memory banks After clicking Read and than selecting appropriate data bank number the data from the chosen bank will be transmitted to the 17 terminal and displayed in the program log in the same order in which you saved it in the handheld device s memory from the oldest to the youngest How to perform salinity measurement 1 Connect the device with the terminal 2 Choose the Measurement menu 3 Click the Measure salinity button The measurement results should now be seen in the program log How to perform moisture measurement 1 Connect the device with the terminal 2 Choose the Measurement menu 3 Click the Measure moistur
14. 2 4 4 19 40 6 000S 2 2005 12 17303 43 085 002 4 3 19 4034 000S 3 2005 12 17 503 43 035 662 425 19 4056 BAGS T SETTINGS a CABLE LENGHT CALIBRAT gt FULL FROBE CALIBRATION gt CLEAR MEMORY SET DATE SET TIME 2005 12 06 a4 52 MEMORY BANE CONTRAST Pressing Start Measurement pushbutton in the Main Menu initiates the display of the Measurement window and running measurement of selected values The measurement results are displayed together with the reflectogram Distinct peaks marked with arrows confirm the user that the TDR soil moisture determination is valid From the Measurement window the user can select Add Comment and from the lower part of the window he can select up to 25 characters associated with the performed measurement for storage in the device memory This memory may be imported to the PC computer using ET USB Communicator program The user selects the characters using the keyboard arrows and OK pushbutton The comment should be accepted pressing sign Then Store command from the Measurement window sends the data with the comment to the memory Store Complete information in the LCD display confirms that the data are successfully placed in the selected memory bank The selection of the current memory bank is done in the Settings window The contents of the device internal memory can be inspected by pressing View Memory command in the Main Menu The st
15. AFA search devices datatme 2007 6 30 11 27 58 Read Date Time Set Date Time ors Ips NORMAL i 2080 set all set all setall set all set all read dl ctg send dl cfg clear all 4Us SENSORS SERIAL NUMBER CHANNEL CONFIGURATION temperature sensors pressure sensors 3 7 1 2FDDID FFFFFF E 2 FFFFFF o FFFFFF data logger running i 3 FFFFFF 3 FFFFFF read_flash meas number 6 4 FFFFFF 4 FFFFFF 5 FFFFFF 5 FFFFFF g FFFFFF G FFFFFF START STOP 7 FFFFFF 7 FFFFFF g FFFFFF g FFFFFF search AU IN LS Co 7 0 N ee oo hi y 1 2 3 4 5 6 fi a Send Bybes 26 Read Bybes 212 Fig 18 DL100 exe application window Setting up measurement periods The pushbuttons read dl cfg and send dl cfg are for reading from and sending to the device the measurement time schedule of the meter respectively The NORMAL configuration is defined by two parameters DIVS in seconds that defines the number of measurement series during 24 hours period and OFFS in seconds that defines the offset from the calculated value This feature 1s intended for future use when many up to 16 TDR MUX mpts dlog devices connected by RS485 serial link will be read by a single USB connection with PC computer The value DIVS 2880 in Fig 18 means that the series of measurement will start every 24 x 3600 2880 30 second The user can enter the required number of series on the base of the calculation
16. J45 socket for connecting in chain measurement devices 1 LED diode that is on when the MIDL 2 data logger is working communicates with TDR MUX mpts devices performs GPRS connection with the Internet server Pushbutton presently not used Initial configuration of MIDL 2 data logger SIM card installation Before starting initial configuration of MIDL 2 data logger the user should install the SIM card Fig 3 SIM card location inside the MIDL 2 enclosure SIM card PC computer and MIDL 2 connection Initial configuration of the MIDL 2 data logger requires its connection to PC compatible computer Fig 4 and running ET USB Configurator program 48 PC computer MIDL 2 Data Logger USB 12VDC Power supply Fig 4 Connecting the MIDL 2 data logger to PC computer Operation with Easy Test Configurator application The supplied application program easy_test exe Easy Test Configurator allows the user to Configure the internal GPRS modem to communicate with the internet ftp server located in IA PAS Lublin Poland Receive information about the data loggers configuration number of connected probes addresses of the TDR MUX devices etc The window of the easy_test exe program 1s presented in Fig 5 and the description of the respective terms is presented below in Table 1 ij Easy Test Configurator i oj x Auto Search About MIDL2 GPRS logger a GZIAASEE GPRS APN name inteme
17. MANUAL FOM mts and TDR MUX mpts and TDR MUX mpts dlog Ver 1 41 Institute of Agrophysics Polish Academy of Sciences 20 290 Lublin Doswiadczalna 4 Poland Tel 48 81 7445061 Fax 48 81 7445067 e mail info easytest lublin pl E Test Ltd 21 030 Motycz Stasin 90 Poland e mail info e test eu Lublin 2013 Contents Fiae 00 40 096 0 een treater eta ier erase rr mer eee eres er me ear eres 6 De viceidentitication and Serial MUMBELS cs ccscsec cis ancaveccnacadess aces oesionecdse each viadindadets Kah reinen cies 6 SONATE yids te E acres aan dene eas etn E lentes erates 7 ETER ER OLAC a EA ee heen ave A Dee aa ee ee 7 ET USB Communicator Window ccssscccccccccccnessssseecccceeeaaueeseeeccceeeesauaaseeccceeeeeeauansees 7 Operation of the program with FOM mts handheld device ccc eceeecccccccceeeeeeeeeeeeeeeees 9 Prob Type and probe selection ssenari a a E T ees 10 PHO SPAM LOS orsepene p onanie E O E A A R 11 BUON enen aacsac sedan ae aunties doer aceunciad decade aan tees 11 Prope nati CAD PAL Oneec isee eae a E EE A E E 11 Probe TUM Cal Dral O eS 11 Moaste Salni ens tt a anes ae ene eines aed eae ee 12 IMICASUTE Drobe temperadi E marrin e tide E T N 12 Measure MINOT SUES coi A A a a O st het 12 Measte AI ote ute T A R T T a 13 CTPA DWAIN OW iesean EE T E A EEO E 14 I ein EEEE E E A N A A AT rae E E EE 14 Ei 0 315 0b AAE ET EEEE E E EE E E EE 14 Save meas rement TESULIG neniecon tornerann
18. MIDL 2 data logger However initial configuration of the system requires connection to PC compatible computer and running the ET USB Configurator program The following actions are performed during wireless connection with the Internet server 1 MIDL 2 updates the current measurement configuration stored in its internal memory measurement frequency channel numbers and variables to measure time schedule of GPRS connections 47 2 All data stored in MIDL 2 is exported to the Internet server After confirmation of successful data storage in the server this data is deleted from the MIDL 2 internal memory to make room for new data If the data storage in not confirmed the data will be transmitted again during the next GPRS connections Front panel Front panel view of the MIDL 2 data logger is presented in Fig 2 It contains GPRS SMA female type connector for connecting antenna directly or by means of 50 ohm coaxial cable USB to connect PC compatible computer for testing and configuration of the data logger Fig 4 i Soar N gt Multi Interface Data Logger es w O MIDL 2 12VDC R O ool PERA l D coe aa C x x Pac x Serial No No R J Fig 2 Front left and rear right panels view of the MIDL 2 data logger Rear panel Rear panel view of the MIDL 2 data logger is presented in Fig 2 It contains 12VDC socket for connecting power supply 12VDC RS485 R
19. PUT to connect up to 16 TDR MUX mpts devices in a chain Fig 17 or MIDL Data Logger RS485 INPUT OUTPUT RS485 INPUT OUTPUT eT Serial No TLXXOS5SXX To PC computer or not connected Upto 16 devices RS485 INPUT OUTPUT USB 12VDC O POWER Serial No TLXXOSXX Fig 17 Connection of multiple TDR MUX mpts devices in a chain to control the measurement experiment with up to 128 TDR probes LP ms and or FP Operational modes of the TDR MUX mpts device The measurement system can work in two modes battery supplied data logger mode when the system is controlled by MIDL Data Logger see MIDL Manual connected to the first in the chain device INPUT 25 mains supplied laboratory mode when the system is controlled by the dedicated software from PC compatible computer connected to any of the TDR MUX mpts USB port When a TDR MUX mts device connected in a chain performs measurements about 210 mA current consumption in operational mode the other devices are in low power mode about 10 mA current consumption in low power mode In case of the system powered by battery supply and controlled by MIDL Data Logger all TDR MUX mpts devices in the measurement system are in the sleep mode drawing about 10 uA from the battery each In the user defined time intervals the MIDL wakes up 70 mA current consumption in the operational mode 150uA in the sleep mode and it sequentially wakes up the TDR MUX
20. UX channels format for temperature C probes is format for matrix pressure mbar probes 1s The following lines of the output file contain data arranged according to the headers This format allows importing of the text file into spreadsheet 23 Exporting Data Logger configuration to the script file to work with MIDL 2 data logger The Data Logger window facilitates to export the script file that can be imported by the MIDL 2 data logger device Having configured channels in each TDR MUX mpts device in the measurement system the user selects Export Script in the File menu to choose the name and location to save of the script file The created script file can be later loaded to the MIDL 2 data logger using Internet Explorer FTP protocol see MIDL 2 Instruction Manual TDR MUX mpts TDR MUX mpts stands for eight channel laboratory or field meter for the determination of moisture temperature salinity and matrix pressure of soils Soil water content and electrical conductivity 1s measured by FP ms FP mts or FP mts ns field probes see page 36 and LP ms laboratory probes see page 38 LP p laboratory probes measure soil matrix water potential see page 40 LP t laboratory probes measure soil temperature see page 39 In FP mts or FP mts ns probes the soil temperature is measured in an integrated electronic temperature sensor The front and rear panels of the TDR MUX mpts device are presented in Fig 15 and Fig 16
21. UX mts devices identified by various serial numbers If the user enters the time period between the measurement series shorter then the one calculated by the program on the base of Table 4 the error Message Box appears with appropriate information Fig 13 After pressing OK button in this box the Set time period Text Box will contain the minimal value of time period calculated by the program In case of a single TDR MUX mpts measurement system with the probes configuration from Fig 11 the minimal time period between series is 22 seconds 22 Period between the measurements is boo short Minimum 22 seconds Fig 13 Information message about too short time period between the series of measurement Writing and reading of the probes assignment to channels Selecting the buttons Write Configuration or Read Configuration Fig 11 the user can load or store the probes to channels assignment for all devices connected to PC computer The name of the corresponding file is user selectable Output data format Pressing the Start Command Button initiates the Data Logger operation of the TDR MUX mpts device The ET USB Serial Communicator will send commands to the device and receive data from the sensors for storage in the text files Each device connected to the computer will have a separate data file named with its serial number 1 e for the device TLIAOSFE the output data file is named OUT_FE txt etc Pressing Stop Command Button save
22. alues of soil temperature and eight values of conductivity measured every ten minutes The measured probes and variables of selected probes are controlled by the user with the Activity channel number window Fig 12 Table 3 Example data8 txt text file with measured data downloaded from the Internet server 53 100707013000 013 3 073 4 012 0 065 8 020 9 059 8 016 8 057 8 18 6 14 3 19 2 13 5 18 1 14 5 18 2 14 4 0 001 0 024 0 001 0 020 0 003 0 019 0 003 0 016 100707020000 013 3 073 1 012 1 066 5 020 8 060 0 016 8 058 5 18 6 14 4 19 2 13 5 18 1 14 5 18 2 14 4 0 001 0 024 0 001 0 020 0 003 0 019 0 003 0 016 log txt contains information for diagnosing the performance of the measurement and communication system The example from Table 4 shows the content of this file with the highest system diagnostic level CSQ informs the user about the power of the GSM signal it is recommended to change the position of the MIDL 2 data logger when this number is below 5 VCC is battery voltage in mV The data are transmitted by the modem in raw format in the file 0611021301554MD dat 061102 is the date in the format YYMMDD 130155 is the time of transmission in the format HHMMSS Table 4 Example log txt text file with diagnostic and performance data downloaded from the Internet server ftp_time 100707020300 ATO01 089 AT13 003 AT74 019 AT82 004 AT85 008 AT86 012 AT87 010 AT91 010 LCT 040 VCC 12959 CSQ 18 99
23. and LP ms probes in TDR MUX mpts channels Due to long term and temperature drifts as well as the different geometries of various FP and LP probes the system can store individual parameters of each probe in a channel These parameters are not accessible to the user but they are taken into account in calculation of soil apparent dielectric permittivity and moisture Calibration of FP probes is done with two media air and water Calibration of LP ms probes is done with a provided calibrator a cylinder from ertacetal 3 8 with two narrow holes for inserting the needles of the LP ms probe for low dielectric constant values and water Calibration in water requires information about its temperature This information is easily available for FP mts probes with inherent temperature sensor The user must provide water temperature for LP ms sensors by measuring it with a thermometer and filling in the Water Temp C Text Box when no AUX probe is selected or measuring it with a selected 1 Wire temperature probes from the AUX port the selected LP t AUX probe should be inserted together with the calibrated probe into water During calibration procedure the user should follow the instructions given in the information windows There is also possibility for non standard calibration like for FOM mts device The detains for this type of calibration are the same go to page 11 Testing F P mts and LP ms probes To test FP mts or LP ms probe
24. as above in the DIVS field and press the send dl cfg pushbutton Reading the entered value and checking can be done by pressing the pushbutton read dl cfg Configuration of sensors in measurement channels On the right side of the window in Fig 18 there are two selection tables for marking probes and variables that should be measured in the selected channels They are named CHANNEL CONFIGURATION the table for choosing sensors in eight channels of the device M T S stand for moisture temperature and salinity variables that can be measured by FP mts see page 36 or LP ms see page 38 probes connected to the input coaxial channels type SMA coaxial sockets of the device Each of this channel has assigned two auxiliary AUX channels ie one for the measurement of temperature using LP t probe see page 39 the other for the measurement of soil matrix pressure using LP p probe see page 40 The pushbuttons set all and clear all are for collective selecting or 28 deselecting a chosen variable in all channels The sign M on the pushbutton marking the name of the first column can be changed for Eps This is for changing the data in the output file from volumetric moisture M to dielectric permittivity Eps as is shown in Fig 18 and Fig 19 as well as the corresponding Table 5 and Table 6 The data collected in the TDR MUX mpts dlog device contain information about the both variables M and Eps and the pushbutton M Eps is respect
25. been associated with the channels of all connected TDR MUX devices the user sets the time distance between the beginnings of the consecutive measurement series Each measurement series consists of sequential measurement of probes and data readout for the consecutive devices sorted in their serial numbers alphabetical order The time for the measurement and readout of the individual probes in the measurement system differs with the probe type Table 4 Table 4 The length of time taken for calculation of minimal time period between measurement and data readout from various probes used by TDR MUX mpts devices Type of probe Measured value Time for the probe measurement and readout in seconds FP mts Moisture and or l dielectric permittivity Electrical conductivity o le Temperature T 3 LP ms Moisture 0 l Electrical conductivity o 1 5 LP t Temperature T l LP p Matrix pressure P l The example sequence of measurements and time distance between the measurement series are presented in Fig 12 The width of a time window for each device differs because not all channels in the device may be measured The TDR MUX mpts devices controlled by the program are identified by various serial numbers S N S N S N S N S N S N P TLIAOSFO TLIAOSF3 TLIAOSFE TLIAOSFO TLIAOSF3 TLIAOSFE time period of the measurement series Fig 12 Example of the sequence of measurements and time distance between the measurement series for three TDR M
26. ces for soil moisture on the base of Time Domain Reflectometry technique matrix pressure applies to TDR MUX mpts temperature and electrical conductivity salinity The TDR MUX mpts multichannel laboratory or field device 1s described in page 24 and FOM mts handheld meter is described in page 31 of this Manual DEVICE IDENTIFICATION AND SERIAL NUMBERS Each measurement device manufactured in IA PAS is provided by an unique 8 characters serial number Fig 1 TILL Ale BFIE Individual number two digits in hex Month of production one digit in hex bl Year of production last digit Me Customer identification two characters Device identification two characters Fig 1 Serial numbers of the measurement devices from IA PAS Lublin The first two characters of the serial number contain the information identifying the device Table 1 describes identification codes of the implemented devices Table 1 Device identification codes Device identification First character Second character H handheld soil moisture TDR S standard version or Slave MIDL temperature and salinity meter M Master MIDL T TDR MUX mpts 8 channel soil G GPS option moisture matrix pressure F field version temperature and salinity meter L laboratory version M Multi Interface Data Logger MIDL 1 Li Polymer 3 6V 1500 mAh G GPRS Data Logger MIDL 2 8 channel high input impedance voltage
27. d SIM card number The user SIM card PIN number should buy a new SIM card activate it and put its number here Accumulator voltage lower limit for sending Voltage threshold mV SMS emergency information to the user the accumulator needs charging After pushing this button the MIDL 2 device NTP time server IP address Update Time updates date and time from the connected PC computer Delay s Period between the series of measurements from the selected TDR MUX devices Number of the mobile that receives SMS emergency message about the low battery voltage of the accumulator contact IA PAS for details After pushing this button the MIDL 2 makes GPRS connection and sends the lastly Do GPRS connection collected data to the server using ftp protocol It uses the data filled in earlier by the user SMS telephone After pushing this button the MIDL 2 device Send modem configuration stores the user configuration data in the device memory MIDL 2 device loads the stored Read modem configuration configuration data to the application program Operation with Internet browser Communication with MIDL 2 data logger for changing the measurement script file and importing measured data is done by means of the Internet server that can be installed by the user or Internet server working in IA PAN Lublin Poland Individual installation of the server by a user may involve troubles therefore it 1s strongly recommended to use t
28. d stopping the measurement The pushbuttons START and STOP are for starting and stopping the measurements of selected probes according to the fixed time schedule After starting the measurements the user can unplug the USB cable from the device and let it work in autonomous mode The TDR mpts dlog will start measurements and after completing the measurement series it will enter into the sleep mode with minimal current consumption from the supply battery about 30 uA in sleep mode It will wake up according to the time schedule fixed by the user perform measurements and again enter into the sleep mode etc One of the major criterion of TDR MUX mpts dlog 29 design was the minimization of power consumption so as to allow long term measurements while supplying the system by a small 12VDC accumulator The 7Ah accumulator can supply the device measurement of 8 FP mts 8 LP t and 8 LP p probes for at least 1 year with 3600 seconds measurement period The user can stop the measurement series by connecting the USB cable of the PC computer to the device start the DL100 exe application see page 27 and press STOP pushbutton The user should be aware that the commands sent to the device while it is performing measurements the POWER LED is ON will be ignored Therefore before sending the STOP command he should check the state of the device by pressing data logger state pushbutton The text below shows data logger running or data logger stop The latter
29. data are billed per kilobytes of information transmitted The data collected by MIDL 2 data logger is user accessible by means of Internet browser ex Internet Explorer or Mozilla Firefox after giving individual login and password The user can also change remotely the configuration of the conducted experiment N Operator Fig 1 Example measurement setup with one 8 channel TDR MUX mpts meter and MIDL 2 data logger 0 T o stand for soil volumetric water content temperature and electrical conductivity respectively The design assumption of the presented measurement communication system is to minimize its management and power consumption This is accomplished by remote communication between the system and selection of specialized hardware and software design providing energy efficiency that enables battery supply for the period of several months depending on the planned frequencies of measurement and GPRS modem communication schedule Additionally there is also the possibility to charge the supply battery from a solar panel The measurement system from Fig 1 can operate in two modes controlled from PC computer by ET USB Configurator program controlled from MIDL 2 data logger configuration downloaded from the Internet server using GPRS communication Operation of the measurement system under control of ET USB Configurator program 1s presented in 1 The description below concerns the autonomous operation controlled by the
30. display changes to shoe the Main Menu see below TDR porous materials moisture salinity and temperature meter Institute of Agrophusics PAS Lublin POLAND C MATN MENI ee In the upper part of the Main Menu window the user can Start Measurement View Memory FYSTART MEASUREMENT gt Brew Menory POWER OFF woe SETTINGS ER SURE JALUES UMS MOISTURE OK examine the stored data Power Off the device and adjust Settings In the lower part the user can choose the da ry ge measured and displayed value either soil y TEMPERATURE K moisture in volume or dielectric constant MAIN MENU sy salinity i e soil electrical conductivity in S m A POWER OFF 0 and temperature OK sign in the line with the SETTINGS aca SEASURED VALUES variable means that it will be measured and ee H displayed Optionally it is possible to add e TEA comment to each of the measured value TEMPERATURE FOM mts devices can be equipped with GPS tap CONVENT a modules not active option 34 So oe Al ADD ENTS MOISTURE SALINITY toH Se A BEES 19 4C l ma AMEASUREMENT eee as MOTSTURE 802 5 SALINITY A BAAS y EMPERATURE 19 4C E 12345 le izle EAC QHWERSTY uI p P AS DFGHIEKL ZxXCUBNM lt gt _ 4 MEASUREMENT STORE gt EEE SsaneLeg MOISTURE 002 4 SALINITY A BAAS _ UIEW MEMORY 2 i ee 1 2005 12 17 03 43 993 B 00
31. ductivity Mon Standard calibration selected device TFGHBAFS fi Dau A Type of probe in a channel m CH1 CH2 CH3 CH4 CHS CHE CHT CH Probe Length T lag T Zc ry z F z p Calibration Standard Full Fulealiraton FPfmts 2 m a Calibration ALK MBAFIC3 Search aux _ Measure Temperature Start Data Logger Back to Main Window Program Log Opening port COMA Port COMS opened Searching far devices on port COMMS Found devices TFGHE FS TFGHEAF S2GHE 4EF Probes found in AUX connector Fig 10 Calibration configuration and test measurement window for TDR MUX mpts device The LP t and LP p probes are connected in parallel to the AUX port using the standard 1 Wire protocol DS18B20 Data Sheet http www maxim ic com Each of these probes is identified by a unique serial number If the AUX probes are connected to the TDR MUX device when the window from Fig 10 opens the program automatically identifies all their serial numbers and they are available by the user Type of probe in a channel When opening the TDR MUX mpts window the program reads the type of probe selected to individual channels i e either LP ms option for Laboratory Probes or FP mts option for Field Probes In case of other configuration of TDR probes than marked the user should manually select the type of TDR probe by choosing appropriate toggle switch under the selected channel number CH1 CH2 or CH8 Then this c
32. e button The measurement results should now be seen in the program log How to perform probe temperature measurement 1 Connect the device with the terminal 2 Choose the Measurement menu 3 Click the Measure probe temperature button The measurement results should now be seen in the program log Operation of the program with TDR MUX mpts device Short description of TDR MUX mpts devices is presented on page 24 Up to 16 devices can be controlled by the ET USB Communicator When only TDR MUX devices are connected to the computer the execution of the command Search for devices in the ET USB Communicator window opens the TDR MUX window Fig 10 and the user can choose the current device for testing calibration and configuration This can be done by selection a serial number from the Select device Combo Box The TDR MUX mpts device can measure the following probes FP mts field probe for the measurement of soil moisture by TDR technique temperature and electrical conductivity using 8 channel coaxial port LP ms laboratory probe for the measurement of soil moisture and electrical conductivity using 8 channel coaxial port LP t laboratory probe for the measurement of temperature using AUX port LP p laboratory probe for the measurement of soil matrix pressure using AUX port 18 KE TDRAMUX mpts File Help Calibration and Measurement TOR Channel Measure Moisture Measure Con
33. ed only in exporting the data text file to PC computer AUX SENSORS SERIAL NUMBER CHANNEL CONFIGURATION the table for choosing an individual probe from AUX input by selecting its serial number see page 19 Before selecting the serial number of the probe connected to AUX port the user should press search AUX IN pushbutton to update the serial numbers of connected probes The configuration of sensors in measurement channels should be stored in the internal memory of the device by pressing the pushbutton send dl cfg Pressing the pushbutton read dl config the use can check the current configuration of the device I Data Logger 1 0 Select Com Port CHANNEL CONFIGURATION TFGHBAFA search devices ALUM T AUK F wi 1 wi datatime 2007 6 30 11 77 58 a Read Date Time Set Date Time E E Fi Fi a JM 8 ors o Jows 0 2880 in set all setall setall setall set all read dl cfg send dl cfg clear all AU SENSORS SERIAL NUMBER CHANNEL CONFIGURATION temperature sensors Pressure sensors data logger state 1 2FDDID 1 FFFFFF 2 FFFFFF 2 FFFFFF 3 FFFFFF a FFFFFF 4 FFFFFF 4 FFFFFF 5 FFFFFF 5 FFFFFF G FFFFFF g FFFFFF 7 FFFFFF 7 FFFFFF a FFFFFF a FFFFFF search ALI IM le data logger running meas number amp Read Bybes 212 Fig 19 DL100 exe application window with opened selection for choosing the required flash memory area with user data Starting an
34. eive reliable results After this time the result is received and displayed in the Program Log in the program main window Measure probe temperature The handheld device is asked to perform the probe temperature measurement It takes about 5 seconds to complete the measurement The temperature sensor is located in the epoxy resin at the beginning of the parallel rods waveguide During the process the user is asked not to disconnect the USB cable from the handheld device It is most advised not to remove the probe from the measured sample in order to receive reliable results After this time the result of the probe temperature measurement is received and displayed in the Program Log in the program main window Measure moisture The handheld device is asked to perform the moisture measurement It takes about 1 second to complete the measurement During the process the user is asked not to disconnect the USB cable from the handheld device It is most advised not to move the probe in the measured sample in order to receive reliable results After this time the result 1s received and displayed in the Program Log field in the program main window The reflectograms used to calculate the moisture value for LP ms and FP mts probes are displayed in new windows Fig 8 and Fig 8 respectively 12 Moisture 012 7 ODielectric constant OF 21 AMPLITUDE 400 500 TIME ps Fig 7 TDR reflectogram from LP ms probe connected to FOM mts device cont
35. endix Watering OF LP p proDes erara a oe 42 ADDI N e Neth ee mCP a Ro noe a tno ey E Oe ee PR So Ea ore 44 Introduction to MIDL 2 GPRS data logger cee cecccccssseceeececceceeeeeeeeeeaaaaaassesssseeeeeeeeeeeeeees 46 FanciondldescnpNioN yiera n E A 47 Front pane leeren a a a E E EE E 48 Rear pane Feesn me A A A O E ee 48 Initial configuration of MIDL 2 data T0 g g r onreine a a a a 48 SIM card installa Oosa renia aE ENE T A 48 PC computer and MIDL 2 connection sssesssessssseeeeenessssssrrerresssssssereresssserrrresssssssse 49 Operation with Easy Test Configurator application cccccccccccccceeceeeeceeeessessseeeeeeeeeeeeeeees 49 Operation with Internet ORO WS CE asec 5 e Sesivvestiain whi aera E ETE a 51 ISG Cala DOO KIA corposo e A Sed ca he natin teach bhai tas 51 Dati OOO KAT AT he citer ta ieee er mre cacti ea incaedvlea renee E diese rexseutas tenis 52 Measurements and GPRS communication time schedule cccccccecceeeeeeeeeeeeeeees 54 References INTRODUCTION The purpose of this Manual is to present the main features of FOM mts and TDR MUX mpts meters as well as the related probes developed and manufactured in the Institute of Agrophysics Polish Academy of Sciences IA PAS Lublin Poland Also it provides the description of the program ET USB Communicator that can control the devices from a PC compatible computer connected by USB link The FOM mts and TDR MUX mpts are measurement devi
36. essary for TDR soil moisture measurements 1 e calculates the length of cable between the coax connector at the device and the time marker in the FP mts or LP ms probes The user is asked to fulfil all actions asked for in the message windows Probe length calibration is the same for standard and non standard probes Probe full calibration Performs the full probe calibration necessary for TDR soil moisture measurements During the process the user is asked not to disconnect the USB cable from the handheld device The user is asked to fulfil all actions asked for in the message windows There is a distinction for standard and non standard probes full calibration The introduction of non standard probe results from the user demands for different length of the probe parallel waveguide In case of short probes the calibration medium of low dielectric constant value should not be air because of troubles in distinction the pulse reflected from the rods end the reflections from the rods beginning and end overlap Even in case of a standard laboratory probe LP ms the calibration medium of low dielectric constant is ertacetal 3 8 to ensure distinct reflections The calibration media for standard TDR probes are presented in Table 2 Table 2 Calibration media for standard field FP mts or FP ms and laboratory LP ms probes Type of Medium of low value of dielectric Medium of high value of dielectric probe constant constant FP mts Air 1 Water
37. guration file GPRS connection table 2 6 10 14 18 22 offset 1 min Application version 0x102 Deley between measurements Offset to frst measurement System log level Records Address IN eo bh D tA yA hm Oo hy Nh 1h no ft SU A 109 gt pan ho D Aen A U ho ito jt ite Internet Fig 11 Measurement and transmission time schedule window a http midLipan lublin pl 8080 midilmanager data activitychanel jsp num 8 Microsoft File Edit view Favorites Tools Help Q sack 7 x B D g Search fr Favorites 44 EER TERY F Address E http jimidi ipan lublin pl 8080 midlmanager data activitychanel jsp num 8 Multi Interface Data Logger Logged Firstname Lastname Activity channel number Number Moisture Temperature Conductivity 1 2 3 4 a 6 5 8 K S SES A a SS Heke OOOO K S SES E a SS Internet Fig 12 Setting the activity of individual channels in selected TDR MUX mpts device 55 The section Records in Fig 11 enables to activate measurement channels in up to 16 TDR MUX mpts devices connected to the MIDL 2 data logger They are identified by addresses from 254 to 239 which corresponds to the last two characters in the serial numbers of TDR MUX mpts devices 1 e from FE to EF The active devices are marked as Set inactive as Unset Pressing the hyperlink in the device number the user can select measurement channels
38. have only one continuous memory area with the number of several thousands most current records of data 30 Exporting the measured data to the PC text file When the device is stopped 1 e the message under the data logger state pushbutton is data logger stop the user can export the measured data from the device into a PC text file Its default location is the folder with DL100 exe application and the name of the file is build from the device serial number date and time when the file was created The example file TFGH6AFA_2007_6 30 10 59 33 txt format is presented in Table 5 and Table 6 The first part of the name is the device serial number TFGH6AFA the next part is date 2007_6 30 in the format yyyy_mm_dd the last part is time of creation in the format hh mm ss Table 5 Output file TFGH6AFA 2007 6 30 10 59 33 txt data format with moisture M in volume percentage data Electrical conductivity S in mS m temperature in centigrade date 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 a time 10 53 0 10 53 30 10 54 0 10 54 30 10 55 0 10 55 30 10 56 0 10 56 30 10 57 0 10 57 30 10 58 0 10 58 30 10 59 0 OOOO OO OOOO oO O O op Ke OOOO OOO OOOO O O op CO OOOO OOO OOOO O O Table 6 Output file TFGH6AFA 2007 6 30 11 0 5 txt data format with dielectric permittivity Eps data Electrical conductivity S in mS
39. he existing Internet server 50 The entry address to this server is http midl ipan lublin pl 8080 mid12 The data stored on this server is accessible for the user after specific login and password filled in by the user in the entry window Fig 6 Login Microsoft Internet Explorer File Edit view Favorites Tools Help 3 Q sack z x E A DO search P Favorites 4 C se Address E http midl ipan lublin pl 8080 midlmanager Multi Interface Data Logger Login test_ugt Password Internet Fig 6 Entry window for the management of MIDL 2 data logger and user files stored in the Internet server located in IA PAN Lublin Poland After successful login a new window is displayed Fig 7 The user can select the following bookmarks User data Data Help Logout http midLipan lublin pl 8080 midimanager inputlogin jsp Microsoft Internet Explorer SEE File Edit View Favorites Tools Help ae 3 Q pack QJ x a A DO Search Pp Favorites 4 ee a Lan rel Address E http midl ipan lublin pl 8080 midlmanager inputlogin jsp vi Go gt gt Multi Interface Data Logger Logged Firstname Lastname Done Internet Fig 7 Main window of the Internet browser application controlling MIDL 2 data logger User data bookmark Selection of User data bookmark opens the window presented in Fig 8 51 E http midLipan lublin pl 8080 midlmanager users priva
40. in individual devices The example Activity channel number is presented in Fig 12 In total number of 8 channels all are selected for measurements channels from 1 to 4 measure two variables moisture and electrical conductivity while channels from 5 to 8 measure three variables moisture electrical conductivity and also temperature Modification of active channels should be confirmed by pressing OK pushbutton and then by pressing Set pushbutton in the Records field of the Edit configuration file window E http midLipan lublin pl 8080 midlmanager data bitmask jsp Microsoft Internet Explo SEE File Edit View Favorites Tools Help Q pack y i x B A P Search Pp Favorites 4 Address E http jimidi ipan lublin pl 8080 midlmanager data bitmask jsp Multi Interface Data Logger Logged Firstname Lastname Edit bitmask Hour Hour 00 00 12 00 01 00 13 00 02 00 14 00 03 00 15 00 04 00 16 00 05 00 17 00 06 00 18 00 07 00 19 00 08 00 20 00 09 00 21 00 10 00 22 00 11 00 23 00 A OHONOROROORe UNUNOnNOUBNOBUE Offset min 1 Cancel Internet Fig 13 GPRS connection table editor window The window for modification of GPRS connection time is presented in Fig 13 The wireless connection cannot be initialized when the execution of the measurement script file takes place In such an instant there will be no GPRS connection Therefore the user should synchronize these two events For this purpose
41. inity developed and manufactured in the Institute of Agrophysics Polish Academy of Sciences MIDL 2 is the modification of MIDL data logger 2 by introduction of GPRS communication and reduction of the old data logger complexity in respect of internal hardware and software as well as the way of operation The configuration of the MIDL 2 data logger is done by means of the ET USB Configurator application program provided free of charge by the producer of MIDL 2 Management of measurements and data transmission between MIDL 2 data logger and the Internet server where user data are stored is done by means of an Internet browser ex Internet Explorer or Mozilla Firefox The manual gives basic information about the functions of the data logging system its configuration and operation More details can be found on the WEB site of the Institute of Agrophysics PAS in the part assigned to the commercial activities under the name of Easy Test http easytest ipan lublin pl 46 Functional description The functional scheme of the measurement system with MIDL 2 data logger is given in Fig 1 It consists of up to 16 TDR MUX mts meters connected in chain with the data logger The data collected in the internal memory of MIDL 2 are transmitted using FTP data transmission protocol in defined time schedule by GPRS modem to the Internet server GPRS General Packet Radio Services is a mobile data service available to users of GSM mobile phones GPRS
42. llel Port LPT3 F Metos PCI Serial Port COM E Metos PC Serial Port COM4 ASE Serial Port COMS aie Processors gE SCSI and RAID controllers Sound video and game controllers 4 System devices Universal Serial Bus controllers Fig 3 Determination of the USB COM port number used by the FOM mts handheld or TDR MUX mpts meters After the COM port selection the user should search the devices on the selected port Only one type of devices can be connected to the PC computer at the time either FOM mts or TDR MUX mpts Only one FOM mts device can be connected to a PC computer The example connections of several TDR MUX mpts devices are presented in Fig 4 and Fig 5 PC computer TDR MUX 1 TDR MUX 2 TDR MUX 2 RS485 RS485 RS485 RS485 RS485 USB 12VDC OUT IN 12VDC OUT IN 12VDC OUT Power supply Fig 4 Example connections of the measurement system consisting in a PC computer and three TDR MUX devices connected in a chain MIDL TDR MUX 1 TDR MUX 2 TDR MUX 2 Data Logger RS485 RS485 RS485 RS485 RS485 RS485 RS485 12VDC OUT IN 12VDC OUT IN 12VDC OUT IN 12VDC OUT Power supply Fig 5 Example connections of the measurement system consisting in a MIDL Data Logger and three TDR MUX devices connected in a chain TDR MUX mpts devices connected in a chain are supplied by means of the linking cable RS485 In the example from Fig 4 the external supply of 12VDC is connected preferably to the first in a chai
43. m temperature in centigrade date 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 2007 6 30 time 10 53 0 10 53 30 10 54 0 10 54 30 10 55 0 10 55 30 10 56 0 10 56 30 10 57 0 10 57 30 10 58 0 10 58 30 10 59 0 0 0 0 0 0 0 0 0 0 0 0 0 0 op No OOOO OOO OOOO O O op CO OOOO OOO OOOO O O The data in Table 5 refer to the situation when M moisture is selected while the data in Table 6 refer to the situation when Eps dielectric permittivity 1s selected in the CHANNEL CONFIGURATION Setting Fig 18 and Fig 19 FOM mts HANDHELD METER FOM mts Fig 21 is a TDR Time Domain Reflectometry based handheld portable 31 battery operated microprocessor controlled device designed for in situ field measurements of soil moisture temperature and salinity bulk electrical conductivity from the same probe Fig 21 FOM mts handheld field operated meter for the determination of moisture temperature and salinity of soils It is designated for periodic measurements at random and or fixed locations where moisture salinity and temperature distribution is to be determined by readings taken at various levels of the soil profile It utilizes the FP mts type probe FOM mts is equipped with a 160 by 128 dot matrix graphic LCD to display data and TDR trace simultaneously The TDR trace is a voltage versus time reco
44. meter for potentiometric measurements B battery When contacting with the producer the user is asked to provide the serial number for identification of the individual device SOFTWARE The both TDR MUX mpts and FOM mts handheld measurement devices communicate with PC compatible computer by dedicated program ET USB Communicator which 1s provided with no charge to the user The program allows to perform single measurement on selected probe to test the device and the probe individually calibrate each TDR probe i e fix the electrical length and the dead time of a probe as well as account for individual characteristics of the channel and send this data to the device read the data stored in the internal memory of the device to PC computer applies to FOM mts handheld meter control the probes measurement sequence and time period between the measurement sequences applies to TDR MUX mpts meter in the data logger mode of operation generate a script file defining the devices and probes measurement sequence for later importing by the MIDL data logger Virtual COM port drivers for USB and installation instructions are provided in the attached CDROM in the catalogue Drivers FTDI Windows XP amp 2000 and Drivers FTDI Windows 98 amp ME or on our WEB site http www easytest lublin pl Firmware upgrade The firmware of the FOM mts and TDR MUX devices is continuously improved to meet the objective of being user friendly The late
45. mperature and salinity electrical conductivity of the soil from the same sampling volume Fig 23 FP m FP mts field probe for moisture temperature and salinity of soil Both probes are suitable for periodic measurements at random and or fixed locations where instantaneous profiles of water content temperature and salinity are to be determined by readings taken at various levels of the soil profile Fig 24 Each of them may also be applied as a mobile probe for momentary measurements in surface layer of the soil by walking over the field and inserting the probe in the soil surface layer at chosen sites bracket cover N kts i 4 t readout omm J feeder PLE Oe ee i ay sensor rods L 100 mm p 2mm L Fig 24 The principle of installation of the FP type probes In order to minimize disturbances in the soil structure the probes are inserted into the soil via pilot holes circularly distributed over the soil surface The holes run slantwise and converge along a chosen vertical line The cables are buried below the soil surface to protect them against the UV sun radiation as well as against rodents Features of FP mts probes sensor a section of a transmission line made of two 100 mm long parallel stainless steel rods having 2 mm diameter and separated by 16 mm sensor support a section of a PVC tube having 2 cm outer diameter and optional length 15 cm 150 cm or longer dependen
46. n TDR MUX mpts device and the power inputs marked 12VDC of other devices are not connected In the example from Fig 5 the external power supply of 12VDC is connected to the MIDL Data Logger and the TDR MUX mpts devices are supplied by means of the cable connected in a chain The response from the connected device is displayed in the Program Log window The available devices connected to the computer can be selected from the Available devices Combo Box The operation of the program is different for controlling FOM mts handheld and a TDR MUX mpts meters Operation of the program with FOM mts handheld device Short description of TDR MUX mpts devices is presented on page 31 The ET USB Communicator can control only one FOM mts handheld meter therefore the Available devices has only one selection consisting of the serial number of the device connected to the computer File Calibration Measurement Read Memory banks COM ports Help Devices management eet LD LEG Ts Probe Calibration Available devices Type of probe HSIAO503 Field FP mts Probe selection C Laboratory LP ms CH number Measurement Length Calibration Moisture Standard Full Calibration Salinity Non Standard calibration Temperature 92 f epshin 0 All Full calibration Program Log Opening port COM Port COM opened Searching for devices on port COM Found devices HSI4 0503 Fig 6 Calibration configuration and test measurement window for FOM
47. nificantly influences the calibration therefore TES T CANCEL K H the probe temperature sensor should have enough time to equilibrate its temperature with water During calibration in water the user should keep the needles of the TDR sensor fully inserted in water and not less than 2 cm away from the walls of the water container After the user confirmation to apply new calibration the data from Full probe calibration procedure will be accounted for in further calculations of soil water content FP m FP mts FIELD PROBE FOR MOISTURE TEMPERATURE AND SALINITY OF SOIL FP Fig 23 is a Time Domain Reflectometry TDR probe for momentary or semi permanent installation Thin wall PVC body of the probe provides ultimate low heat conductivity thus allowing avoiding the parasite thermal bridge effects on distribution of soil moisture in the probe s sensor vicinity Through a preaugered pilot hole it can reach any depth without destroying either the soil structure or disturbing the heat and mass transport in the soil For semipermanent installation the probe can be inserted horizontally through a sidewall of a soil pit or slantwise from the soil surface The probe installed once may be left intact in the soil for as long as necessary then drawn out at the end of the experiment 36 FP m is a probe for in situ field measurement of the soil moisture whereas FP mts 1s its version for simultaneous measurement of moisture te
48. nnnnnnnnnsssssssosseeeereenennsssssssss 27 Setune Up measurement Periods 664s ni T A E N a ee 28 Configuration of sensors in measurement channels nennnnssssssseeeeeeeeoonnnnssssssssseeeee 28 Starting and stopping the measurement eennnneossssssoeeeeteteeeeeoosnsssssssssseseerrrerenssssss 29 Format of data in the flash memory and output file 00 eeessssceeeeeeeeeeeeeeeeeeeeeaeees 30 Exporting the measured data to the PC text file 0 ccccesseeeeeseeeeeeeeeeeeeeeeeeeeeaas 31 FOM ats handhc id Inele aici nitions eae iseaass a e a a Sake onde acatudeannedtne 31 Features Or POM ants Mand Weld device S pmsccutsciatcted a totes ctawt tated pacleaudoa enue enseions 32 INA ANUS AIAG Coc ce be Scares aio darasaee seed re T E TE weaaeavsieteeseen vide seesens 33 FOM Tats OP El all OM achat sosachaaieictedodvsandsdteas tueuivad S 33 POX TENA LC ONE C MONG eane eee tiara et ene a ee eee aeks 33 Battery supply and battery Charging cccccsssssssssseeseecccceceeeeeeeeeeseaeaeeeeeeeeeeees 33 Jy Neves Ce 0 021010 0 mene nena A onan ene cten a eae ener a 34 FP m FP mts Field Probe for moisture temperature and salinity of soil eee 36 LP ms Laboratory miniProbe for soil moisture and Salimity ce eeseeeeeeeeeeceeeeeeeeeeeeeaeaes 38 LP t Laboratory Probe for Soil temperature 0s2 0 6 25 3 oie e E ieee 39 LP p Laboratory miniProbe for soil water capillary preSSure ccccccceeeceeeeeeeeeeeeeeaeaes 40 App
49. o a a aS 14 Export measurement results to MS Excel cccccecccccccccsssseseececeeeeeeaeeeeeeeees 14 PXI 0 0 G21 0 eee ee oe eee nt eee er T 14 CS ED Eat OM Me TMU og ats sare scenes ehe Setetias EAA 14 Probe 1emotn Calibrations ceca ats wees E 14 PEO DS TUM CAMON A nO Neresine i E A T T O E ed oatteewsan elation 14 Moa cure ment NAGI is statin chee tanta dente ved atta a a a dlabe dada Made etaniats 15 Readme Mapania E Senet ete noon S Sete re Oe et eRe See 15 Read last measured Salinity sereins EEEE 15 Read last measured probe temperature cccccccccccceccesseseeeeeeeceaaeseeeecees 15 Read 1ast measured MOISE aininn O a a tsaaiedene 15 RCAC UNG er EA E A S 15 EEK AG A A E E AAEE E AE AE E E O 15 Read CONAS Esc cis ve rna EA AE AEA 15 Read supPpPN VOAL Cx genrii e A 15 Memory banks Menusi E EEE E O ated 16 Stord diapo Nisreen E E S 16 Readdata DanKescaceo ei r a 16 Save Cala DANK sae a e EEE TA EE A E A E 16 COMPOS DIC aeina O 16 COMINO aaen a T E T mene 16 PeDe A a A E etsestoee ines osedendees ocscosene 16 Help 16 ADOUL COMHANN gt ca arate tt oe ape at ane 17 HOW Orrian A E E e a eae E aaa 17 How to connect with the device over USB cable ce eeeccccccceeeeeeeeeeees 17 How to periorm the Cal bration s 32ci sresscsederiasesereecnecseesshehsned in cesateateaczediseccsees 17 How 10 read Danks Memory sresti oninia a a E EAT E uses 17 How to periorm salinity measurement ossein rie iine EE EK 18 How to perform moistu
50. omplete Fig 8 It contains the reflectogram graph used to calculate the moisture value The marked points on the reflectogram graph represent the time distance which is the base for the calculation of the soil water content Menu The menu bar represents all the functions of the program The menu bar contains following menus File Calibration Measurement Read Memory Banks Com Ports and Help File menu Save measurement results After performing all measurements user is enabled to save the measurement results to a text file The first line consists of values of respectively moisture salinity and probe temperature The following 1024 lines contain the data values of the reflectogram Export measurement results to MS Excel After performing all measurements user is enabled to export the measurement results to MS Excel sheet It is advised not to close or edit the sheet while the data is being exported When operation has finished the sheet looks the same as the text file described above Exit program Selecting this command closes the application Remember to save your measurement results before exiting Calibration Menu Probe length calibration Performs the cable length calibration During the process the user 1s asked not to disconnect the USB cable from the handheld device The user is asked to fulfil all actions asked for in the message windows Probe full calibration Performs the full probe calibration During the proce
51. onfiguration should be saved in the device for storing in the non volatile memory by pushing the Save Configuration Command Button The Read Configuration Command Button is for back reading of the recently written data and verification of the chosen selection Testing LP t and LP p probes connected to AUX port Currently two types of probes can be applied for connection AUX port LP t laboratory probe for temperature measurement see page 39 and LP p laboratory probe for soil matrix pressure see page 40 When opening the TDR MUX mpts window the program searches for 1 Wire link probes connected to the AUX port of the selected device Each probe has an attached label for identification purpose The serial number on this label contains six alphanumeric characters preceded by a letter t for temperature probes and a letter p for soil matrix pressure transducer ex t 45BE1D or PEACO16 19 To test a sensor connected to the AUX port it is necessary to select its serial number in the Combo Box under the Search AUX Command Button and push the appropriate Command Button in the AUX Section 1 e Measure temperature or Measure matrix pressure When the user changes the configuration of 1 Wire sensors connected to the tested device he should update the current configuration by pushing the Search AUX Command Button The result of the measurement of the selected 1 Wire sensor is displayed on the Program Log window Calibration of FP mts
52. ools Help http midL ipan lublin pl 8080 midimanager data selectDir jsp Microsoft Internet Expl SEE ar Q peck amp x B A p Search Pp Favorites g zir w LJ rel Address E http jimidi ipan lublin pl 8080 midlmanager data selectDir jsp v Go Multi Interface Data Logger Logged Firstname Lastname Directory select test_ugt Done Internet Fig 9 Content of Data bookmark After selection of the required directory the user can download or delete data from the remote MIDL 2 data logger using the window presented in Fig 10 E http midLipan lublin pl 8080 midimanager data enterdir jsp fname test_ugt Micros SEE File Edit View Favorites Tools Help ae gt Q sack j 4 x B A Ss Search Pp Favorites 2 ee wl LJ rel Address E http jimidi ipan lublin pl 8080 midlmanager datafenterdir jsp fname test_ugt hd Go Multi Interface Data Logger Logged Firstname Lastname Directory test_ugt Edit co ation file Data file File name Download Delete data amp txt Er data txt o tat XEK XE Internet Fig 10 User data management window There are three files for selection data8 ixt and data9 txt that contain data values collected from the measurement devices according to the selected measurement configuration measurement script file Table 3 presents a part of the data8 txt file with the first eight values after date and time four v
53. ored data records contains the following fields separated by semicolon date and time of measurement volume percent of moisture temperature end electrical conductivity of the soil The window Settings enable to perform Cable Length Calibration Full Probe Calibration Clear Memory banks Set Date Set Time select current Memory Bank three banks are available each for about 300 data records and the Contrast of the LCD display 35 The device can use FP mts probes with cable ry FULL PROBE CALIBRATION gt length from 1 5 to 9 m When changing a probe CLEAR MEMORY gt the user should perform Cable Length Calibration PROBE FOUND AT S 76m to determine in time the scanning window of the TDR sensor reflectogram The displayed value in meters 1s approximate SETTINGS To increase accuracy of the TDR moisture CABLE LENGHT CALIBRAT gt i E Measurement the user is advised to perform Full w Probe Calibration to store the individual LEAVE PROBE IN AIR f E aL k parameters of the applied FOM mts probe in the device internal memory Selection of Full Probe Calibration is 7 followed by the information Leave probe in air 4SETTINGS C As soon as the measurement is done in air the CABLE LENGHT CALIBRAT gt l H p new information window appears to Insert probe _ INSERT THE PROBE fF into deionized water Water temperature INTO DEIONIZED WATER one ne FOR AT LEAST 2 MINU sig
54. r LP p connected to AUX channel 1 s the device ambient temperature of work 5 C 50 C FP mts LP ms and LP t probes can work in the 20 C 50 C temperature range dimensions 180 x 85 x 58 mm weight 0 35 kg 26 maintenance the meter is not user serviceable No special maintenance means are required temperature of storage 10 50 C In case of the measurement system work with MIDL Data Logger TDR MUX mpts dlog TDR MUX mpts dlog stands for multichannel laboratory or field meter for the determination of moisture temperature salinity and matrix pressure of soils which is equipped with a data logger It is an enhanced version of TDR MUX mpts meter and contains features that enable to store the measured data in the internal memory of the meter These data can be exported to the memory of PC computer using USB link and the free of charge DL100 exe application The meter can work in two modes in connection with PC computer to set up the data logging schedule or export the data collected in the internal flash memory of the TDR MUX mpts dlog device to the text file on the PC computer in autonomous mode to collect data from the probes and store the data in the internal flash memory DL100 exe application runs under Microsoft Windows and controls only one device connected to the PC computer Starting the DL100 exe application After starting the DL100 exe application the following window appears Fig 18
55. rd of the voltage pulse round trip along the probe It is helpful to check the probe status during break short and after its installation excessive attenuation of the pulse FOM mts provides readout of volumetric water content according to the empirical calibration of Malicki Malicki et al Eur J Soil Sci 64 1996 or the readout of the apparent dielectric constant of the measured soil for the application of user calibration Also FOM mts is equipped with the USB serial port for connection with PC compatible computer to data transmission Features of FOM mts handheld devices light handheld enclosure ability to register and store up to 1000 labelled readings internal temperature sensor and real time clock operates with probes with different cable lengths from 1 5 to 9 5 m keyboard and LCD display 160x128 dots with user friendly operating software optionally equipped with GPS module for geographical localization connection by USB interface with PC compatible computer for data transfer 32 lithium polymer rechargeable battery supply without memory effect enabling charging at any time 3 6 V 1500 mAh pulse sin like needle pulse having 200 ps rise time range of readings volumetric moisture 0 100 temperature 20 50 C electrical conductivity 0 000 1 S m accuracy moisture absolute error displayed water content 2 temperature absolute error
56. re measurement ssssesseeeeesssssssteerrsssssssrrrreessss 18 How to perform probe temperature measurement ccccccceeeeeeaeeeeeeeees 18 Operation of the program with TDR MUX mpts device cceeeecesseseeeeeceeeeeeeeeeeeaaaees 18 Type or prope machann a ra evict ee ene ee ecient sy oe 19 Testing LP t and LP p probes connected to AUX port 00 cccsseeeeeseeeeeeeeees 19 Calibration of FP mts and LP ms probes in TDR MUX mpts channels 20 Testun FP mts and GP mS PrODCSai sien eve eneeedicsae feet wad andes See 20 Data LG OCT WINdOW serieren a a A a desbutebotedan TOR l 20 Time period between the measurement series cccccccseeseeeecceeeeeeaeeeeees 22 Writing and reading of the probes assignment to channels 0008 23 COU UU CALA TORMA sen ER bonne aaa eneees 23 Exporting Data Logger configuration to the script file to work with MIDE ata TOS TOT msn a E AAEE AE EA 24 TR WE PANES ienei N 24 Front Dame GES Chip OM aiken a anes aerate seo oes aw ae mee oa 24 Rear pane eS C1 OB acre cette cate cs Paste haath Saasutatisic aa Se Senses wade ps esas ta aera 25 Operational modes of the TDR MU X mpts device ou cccccessseeeececceeeceaeseeeeeceeeeeeaas 25 Features 0f TORIMUX GNP Ce VIC 6 veces cos tesa e a T eae anes een aeeeaons 26 TDREMUX7 Mp tS GOS irsinin anaa Ea e a aeniea 2 Starine the DL100 6x6 application ecem E E ies 21 Synchronizing the device with PC computer clock nnnnn
57. respectively TDR MUX 1 2 3 4 5 6 T 8 ERS Institute of Agrophysics 3 A Polish Academy of Sciences oie Fig 15 Front panel of the TDR MUX mpts R5495 INPUT OUTPUT Serial No TLXX05XX Fig 16 Rear panel of the TDR MUX mpts Front panel description The front panel of TDR MUX mts contains the following Eight ports labelled 1 2 8 of MCX or SMA type depending on the kind of connectors attached to the TDR probes The laboratory probes LP ms see page 24 38 are usually terminated by MCX plugs and FP see page 36 probes by SMA plugs although it may depend by the user choice AUX port for auxiliary soil temperature LP t see page 39 or soil matrix pressure LP p see page 40 probes connected in parallel and individually selected by unique serial numbers Rear panel description The rear panel of TDR MUX mts contains the following Not connected or to MIDL Data Logger Power supply socket labeled 12VDC The supply voltage may be in the range 10 14 VDC chosen for the possible supply from lead acid 12VDC accumulator or from a filtered and voltage source the example connections of the measurement system are presented in Fig 4 and Fig 5 USB connector to PC compatible computer for testing the device or controlling its operation during the measurements by supplied software POWER LED indicating the device connection to the system supply RJ12 socket for serial RS485 INPUT and OUT
58. robe selection Although the FOM mts handheld meter can measure only one probe at a time the user can change probes manually and use up to eight earlier calibrated probes standard FP mts and LP ms probes having the length of parallel rod waveguide 10 cm and 5 2 cm respectively or non standard FP mts and LP ms probes of other length This is done by Probe selection Combo Box and Type 10 of probe radio switches The calibration parameters of earlier calibrated probes defined by appropriate Probe selection number are stored in the device for further application Program Log Program Log is a text field used to present results of measurements information about the program and about communication with the device It is located at the bottom of the main window It can be used like any text editor for example it 1s possible to copy its content to the clipboard and paste it elsewhere Buttons Using the buttons is the fastest way to perform exact actions with the connected device The Search for devices button located on the left from the centre of the main window enables the user to connect with the device on the selected COM port When connection is established the image on the right from the Search for devices button disappears and reveals calibration and measurement buttons These buttons represent the same actions as Calibration and Measurement Menus respectively Probe length calibration Performs the probe length calibration nec
59. rolled by ET USB Communicator Moisture 010 7 ODielectric constant 06 23 w 400 500 600 TIME ps Fig 8 TDR reflectogram from FP mts probe connected to FOM mts device controlled by ET USB Communicator The marked points on the reflectogram represent the time distance which is the base for the calculation of the soil water content The first marked point the reflectograms represent the reflections from time markers located in time about 150 ps before the beginning of the parallel rods waveguide The time marker reflection for LP ms probe is positive while for FP mts probe negative Measure all The handheld device is asked to perform all three measurements described above It takes about 7 seconds to complete the measurement During this process the user is asked not to disconnect the USB cable from the handheld 13 device It is most advised not to remove the probe from the measured sample in order to receive reliable results The received data are displayed in the Program Log field in the FOM mts window in the following order probe temperature salinity and moisture The reflectogram graph used to calculate the moisture value during the TDR method is also displayed in a new window The marked points on the reflectogram graph represent the time distance which is the base for the calculation of the soil water content Fig 8 Graph window Graph window opens after the moisture measurement is c
60. rs only Do not do it too rapidly in order to let excess of water filtrate out the ceramic cup before resulting overpressure blows up the transducers diaphragm Store successi valy assembled probes with their ceramic cups in damineralized and deaerated waar clamp nut Unscrew a plug and screw the fixture in the column wail Make a hole in the soil core insert the pro be and fix it with the clamp nul Preparing the LP p to work The goal is to obtain the minitensjometer s void filled with deminera lized deaerated water To store a ready to work probe keep its capillary porous cup submerged in water Be aware that the cable side of the transducer encapsulation is not watertight 42 Watering LP p under ambient pressure Put air dry suction cup into water and soak it fora day or two To minimize entrapped air make sura that water can trickia the ceramics from outside only Fill in the suction ale ment with damineralized and deaerated water using a soft needled syringe Make sure thal the needis reaches from the insida the Gup s tip Continuousiy a 1q straam of water pa dl puil the neadia oul then put the suction element aside in vertical position to prevent it against water leakage Put the probe together preventing entry of air To screw the alaments together use force of your fingers only Do not do it too rapidly in order to lel excess of water filtrate out the ceramic cup before resulting overpre
61. rve water conductivity k function and differential water capacity and unsaturated water diffusivity Features of LP ms probes installation hole metric thread diameter of 8mm height of 3 3 mm sensor a section of a transmission line made of two 53 mm long parallel stainless steel rods diameter of 0 8 separated by 5 mm cable length 2 m from the sensor to the terminating connector or multiplexer sphere of influence a cylinder having diameter of about 5 mm and height of about 60 mm circumferenced around the sensor rods 38 sampling cylinder Ca o Uf gt N X Je Fig 27 A set of LP ms and LP p LOM controlled miniprobes inserted through a 2 75 mm thick wall of a sampling steel cylinder having height of 100 mm and 55 mm inner diameter The wall of the cylinder is provided with tapped holes equally distributed along the cylinder height in order to monitor independent layers of the soil The holes are aligned spirally to minimize mutual shadowing in the vertical Lb AD LP t LABORATORY PROBE FOR SOIL TEMPERATURE LP t is a laboratory probe Fig 28 for monitoring instantaneous profiles of soil temperature in soil columns or in undisturbed soil cores Thin wall half rigid polyethylene body of the probe provides ultimate low heat conductivity thus allowing avoiding the parasite thermal bridge effects Several LP t probes can be inserted through the wall of the soil column or the
62. s all output data files associated with the TDR MUX mpts devices in the system to the same folder where the ET USB Serial Communicator program 1s located default folder counter date time M1 S1 X11 X12 M2 S2 T2 X21 X22 M8 S8 T8 X81 X82 O 2005 04 27 16 41 09 008 2 0 000 15 1 470 009 8 0 000 12 4 17 7 17 8 014 3 0 000 15 3 17 5 510 1 18 39 31 008 4 0 000 14 9 472 009 9 0 000 12 8 17 4 17 9 006 7 0 000 15 2 12 8 513 2 20 37 54 008 4 0 000 14 0 470 010 1 0 000 12 7 17 5 17 2 006 7 0 000 15 0 12 6 516 3 22 36 16 008 5 0 001 12 9 475 010 1 0 000 12 3 17 6 17 0 006 2 0 000 15 7 12 0 521 Fig 14 Format of the output data file generated by Data Logger window of the ET USB Serial Communicator for the configuration of probes from Fig 11 The format of output data file is presented in Fig 14 The first line of the output data file contains headers They represent counter number of the measurement series executions numeric value starting from zero date time date and time for the start of the current measurement series execution date is written only once a day and updates at midnight format Y Y YY MM DD HH MM SS M1 M8 value of moisture in channels 1 8 format S1 S8 value of electrical conductivity Sm in channels 1 8 format T1 T8 value of temperature C in channels 1 8 format X11 X81 and X12 X82 for probes in A
63. s connected to chosen channels it is necessary to check the type of probe in the Type of probe in a channel frame connected in the selected channel and in case of changes save the current configuration of probe type in channels push the appropriate Command Button ie Measure moisture or Measure conductivity The measurement results will be displayed on the Program log window After calibration and testing of all probes connected to the selected device the user can select another device using Select device Combo Box and repeat the same procedures Then he can start data Logger mode of the program by pushing the Start Data Logger Command Button Data Logger window Data Logger window is presented in Fig 11 It 1s intended to plan the experiment 1 e determine the sequence of probes measurement in connected 20 devices and time period between the beginnings of consecutive measurement series ad Data Logger File Help Select device Molsture a0 aT sqri eps a2 eps Sad l z al a2 al Set time period an e A Cee onds Cal 2 in seconds D Measured value from Frobe type LP ms or FP mts Channel No LP ms FP mts 6 o T Measured AUX probe 1 yo a M5BEID pEACOI6 Fig 11 Data Logger window TDR MUX mpts device Opening the Data Logger window is associated with the execution the following operations by the program reading the serial numbers of TDR MUX mpts devices connected in
64. sampling cylinder thus allowing for vertical recording of the instantaneous profiles of temperature Such an array when combined with miniprobes for soil moisture salinity and also probes for matrix pressure see LP ms and LP p flyers makes it possible to collect a set of corresponding temperature data from non isothermal transition of drying or wetting front from which readings of bulk electric conductivity as well as matrix pressure can be temperature corrected Also heat transport coefficients thermal conductivity thermal diffusivity specific heat can be determined if a heat flux meter not provided by Easy Test is installed in the column under investigation The wall of the cylinder containing a soil core is provided with tapped holes 8 mm diameter A guide is screwed into the hole prior to the probe installation This guide helps to avoid air gap around the probe which otherwise might result while installing LP t is pushed into the soil core and fixed with a screwed gland Features of LP t probes sensor a temperature dependent current source range temperature between 20 C and 60 C resolution 0 01 C absolute error not more than 1 C or 0 1 C if individually calibrated cable length 2 m or other length when requested installation hole 8 mm diameter tapped with 8 1 5 mm thread 39 polyethylene body guide x connector gland gland nut gt temperature sensor Fig 28
65. ss the user 1s asked not to disconnect the USB cable from the handheld device The user is asked to fulfil all actions asked for in the message windows 14 Measurement menu Commands used to execute certain or all measurement processes on the sample Their execution corresponds to the respective Command Buttons The commands include measure salinity measure probe temperature measure moisture measure all Read menu Commands used to read some settings values and previous measurement results stored in the handheld device Read last measured salinity Shows last measured salinity value stored on the handheld device in the log field in the program main window During the process the user is asked not to disconnect the USB cable from the handheld device Read last measured probe temperature Shows last measured probe temperature value stored on the handheld device in the log field in the program main window During the process the user is asked not to disconnect the USB cable from the handheld device Read last measured moisture Shows last measured moisture value stored on the handheld device in the log field in the program main window During the process the user is asked not to disconnect the USB cable from the handheld device Read time Shows the current time set on the handheld device in the log field in the program main window During the process the user is asked not to disconnect the USB cable from the handheld device
66. ssure blows up the transducers diaphragm Unscrew a plug and screw the fixturain the column wall Make a OOt hola in the soil core insert the pro be and the it with the clamp nul Se a a a valy assembled Fill in the inside of the pressure iransducer with demineralized and dea arated water Make sure that the needia tip gantly touches the diaphragms Energically stream water forth until bubbles of air disappear A jat will force the needia out do not alow that probes with their ceramic cups in demineralized and deaerated water Preparing the LP p to work The goal is to obtain the minitensjometer s void filled with deminera GLEJ ca UPEPEPETI EIT Pa EN 1 i IRE xii a lized deaerated water To store a ready to work probe keep its capillary porous cup submerged in water Be aware that the cable side of the transducer encapsulation is not watertight 43 APPENDIX 2 The program easy_test exe in the supplied CD ROM solves temporarily the problem with the bug that resulted in importing by ET USB Communicator only 112 records from each of the internal memory banks of FOM mts meters In future version of the ET USB Communicator the bug will be eliminated 44 45 Introduction to MIDL 2 GPRS data logger MIDL 2 is a data logger for data collected from TDR MUX mpts 1 meters of soil moisture by TDR method water potential temperature and electrical conductivity sal
67. st version of firmware is available on request from IA PAS Lublin Poland or can be downloaded from the WEB site www easytest lublin pl The process of firmware upgrade consists in the execution of appropriate files FOMXXXXX exe or TDRXXXXX exe where XXXXX is the upgrade version It is requested not to interrupt the execution of the above files ET USB Communicator window After connecting the device to PC compatible computer by USB cable and starting the program displays the main window of ET USB Communicator Fig 2 bal ET USB Communicator File COMports Help Devices management selected port none Available device an above port Institute of Agrophysics PAN Polish Academy of Sciences none Easy Test is the logo of measurement devices produced and distributed by IAPAS Lublin Poland Program Log Fig 2 The ET USB Communicator window The user should select the COM port appropriate for the selected device The COM port number can be determined by checking Windows Device Manager The example presented in Fig 3 has USB serial port on COMS Device Manager File Action View Help Hed amp A Floppy disk drives Human Interface Devices IDE ATASATAPT controllers Keyboards i Mice and other pointing devices he Modems a Monitors v Multifunction adapters E8 Network adapters Ports COM amp LPT A Communications Part lt OM1 jf ECP Printer Port LPT1 F MetMos PCI Para
68. t GPRS firmware version v1 10 GPRS user name ana Curent data and time 2010 7 8 8 25 32 Update Time internet voltage threshold 11000 212 182 61 122 midion Delay s 1800 re SMS telephone oo0000000 62 152 126 5 priecol 1111 Do GPRS connection Device address ue Saakas lhaia Activity channel number 0 Read last data Moisture Temperature Conductivity v DO 0O N m AN A a n ae co O Nm M3 set all set all set all clear all clear all clear all Connection offset no send modem configuration read modem configuration z aS ES Fig 5 Entry window of Easy Test Configurator program application for GPRS configuration and giving information about the MIDL 2 data logger and user files stored in the Internet server located in IA PAS Lublin Poland Table 1 Parameters of GPRS connection Parameter name Comments GPRS_APN name GPRS user name GPRS password Please consult with your GPRS provider to fill in these parameters 49 IP address of the ftp server located in IA PAS Lublin Poland The user space for FTP server IP address incoming data are allocated in this server Access to the data is guarded by the user login and password the ftp server from IA PAS Password of the user provided by the admin For example 198 123 30 132 ntp nasa arc nasa gov 204 152 184 72 clock isc org or other local server address l Name of the user data directory in the User fille
69. t on the intended depth of the sensor installation cable length from1 5 to 9 m from the sensor to the terminating connector region of influence Fig 25 a cylinder having approximated diameter of 5 cm and height of 11 cm circumferenced around the sensor rods 37 PVC pipe gt itis 7 sensor rods My lt region of influence 5 cm Fig 25 A draft illustrating the approximate region of influence of the FP probe defined as a solid beyond of that changes in water content do not markedly affect readings of moisture LP ms LABORATORY MINIPROBE FOR SOIL MOISTURE AND SALINITY LP ms a laboratory miniprobe Fig 26 designed for monitoring changes in water and salt distribution in soil columns or in soil cores sampled with standard sampling equipment clamp nut p guide aw fi rods ee Fig 26 LP ms Laboratory miniProbe for soil moisture and salinity Several LP ms can be inserted through the sidewall of a soil column or a steel sampling cylinder Fig 27 thus allowing for vertical scanning of the instantaneous moisture and electrical conductivity profiles Such an array when combined with similarly installed minitensiometers LP p makes it possible to collect a set of corresponding water content and matrix pressure gradient data from drying or wetting front transition From this one can obtain a complete set of the soil unsaturated water flow characteristics 1 e water retention PF cu
70. te jsp Microsoft Internet Explo SEE File Edit View Favorites Tools Help ae Q peck 4 x B A P Search Pp Favorites a lt wi 7 rel Oe v Go gt gt Address E http jimidi ipan lublin pl 8080 midlmanager users private jsp Multi Interface Data Logger Logged Firstname Lastname Login te st_ugt First name Firstname Last name Lastname e mail easytest ipan lublin pl Password COLLIE re enter eecceces rivieges File access Directory name Read Read Write test_ugt Done Internet Fig 8 User data window for setting up user data The description of the elements in this window is given in the Table 2 Table 2 Content of the User data window Name Description Login Unique name of the MIDL 2 data logger in parenthesis It must be the same as the name of the folder in the Internet server where the incoming data will be collected Example test_ugt Firstname First name of the user optional Lastname Last name of the user optional e mail e mail address of the user optional Password Password of the user The data coming from the measurement devices by the specific MIDL 2 data logger may be accessible for many users having different privileges 1 e read or read write Data bookmark The window accessible for the user after pressing Data bookmark is presented in Fig 9 The user can select directory with data he wants to access 52 File Edit view Favorites T
71. text informs that the device will respect the user commands Format of data in the flash memory and output file The whole flash memory in TDR MUX mpts dlog device 1s divided into maximum number of 32 user data areas where the data are stored They are marked nn_pp pp which is presented in Fig 19 in the pull down box lt pointer to the beginning of the current memory area marked 0 lt pointer to the beginning of the previous memory area marked 1 lt pointer to the beginning of the memory area marked n lt 32 Fig 20 Configuration of the internal memory in the TDR MUX mpts dlog device nn stands for the number of the user data area and pp pp stands for percentage of full flash memory capacity occupied by the selected memory area The division is dynamic and cycling Fig 20 Dynamic means that the data from current execution of DL100 exe application are always stored in the area marked 0 If the user stops the execution of the program and starts it again the data from the previous execution will be marked as 1 The next start of the data collection by pressing the START pushbutton will result in collection the new data in the memory area 0 while the previous memory areas bill be marked with the old numbers 1 When the whole memory will be completely filled by data the new data will be stored starting from the bottom address of the memory erasing the whole memory area occupying this place This way it is possible to
72. the file the data is to be written to The first line of the text file tells the user which data bank has been written to this file During the process the user is asked not to disconnect the USB cable from the handheld device Com ports menu COM No Selects a COM port to look for attached devices Selected COM port is marked with V sign To select another COM port the user has to deselect the previous one with clicking on it again Help menu Help The command opens the program help file 16 Tematy Pomocy Easy Test USB Communicator Help Jx Zawarto Indeks Znaid Kliknij temat nastepnie przycisk Wiy wietl albo kliknij inna karte np Indeks Getting started 2 What i Easy Test USB Communicator 3 Credits Via Using the program 2 File Menu 2 Calibration Menu 2 Measurement Menu 2 Read Meru 2 Memory banks menu 2 Help menu a How bo How to connect to the device over usb cable 9 How to perform the calibration How to read banks memory 2 How to perform salinity measurement Drukuj Anuluj Fig 9 Help Window of the ET USB Communicator About command How to Displays general program information How to connect with the device over USB cable l PA 3 4 Connect the USB cable to both the device and the terminal Choose the correct com port from the com ports menu Click the Search for devices button Select proper device from the list above

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