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1. N AN Ky DATA HARVEST wt m EASYSENSE V Log User Guide EASYSENSE V Log User Guide DS133 1 CONTENTS WV Hal SS UOMO 2 et ee ee ee ee 2 Getting to know your V Log data logger ss22200220000eennnnnnnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnn 3 The V Log 0 12 109908 ee ee een 3 V LOG DUON See ee ee 3 EIS ee sens ee A ee a er ee re 4 The PING IN SCS Ol sisipan en nn re ae 4 Yv L89 S DUI SEN 078 aan een 4 Changing a sensors range and turning a sensor on Or Off uneeesennesesnnnnnennnnnnnennnnnnnnn 4 Ways to capture data with V LOG ccccceeecccecceseeceeeceeeeeceeecaeeeeeeeeseeeeeeeesseaeeeesesaeeeeeeeeeas 9 Using V Log standalone without a computer ce cccccceseeeeeeeeeeeeeeeeeesaeeeeeeeesaeeeeeeesaaees 5 NNT reniir ioe inni E E 6 PICO en E 6 EAS VOU e E E 7 MAIS OL eieae a i ani a e a a a iee ie 7 WMG T EE E E TEE A P EET ETT 7 Clog eee ee ee eg 8 FERS UW a E E E 9 EA ee ES A EEN E A O ee ee 9 Switch Off Sensor Delete Data Full Reset Language Date Style Decimals Meter Text VEON VV IU ON SO ee ee ee 10 WER eC IC AN SLANG een een 13 PUNO AC SEU een E T 13 MM MACY tices AEE E AE E EE E E E E EE E 14 Copyright all rights reserved This manual may be copied for use within the premises of the Licensee on condition that it is not loaned sold or used outside the Licensee s premises Data Harvest s policy is to continually improve products and services so we reserve the right to m2. 2014 8 EASYSENSE V Log User Guide DS133 1 Review You can use Review to view the readings stored in a data set The most recently stored data is shown first Snapshot 1 21 53 co 08 04 14 2 21 48 c 14 44 09 A Data set 1 A Sample 4 of 10 gt Review gt A Use the scroll buttons to go up A Use the scroll buttons to or down the list of data sets until v view the reading taken in you find the right one this set of data Use the enter button to toggle to a second screen if more than 3 sensors were logged System y Switch off Sensor Delete Data A Use the scroll buttons to go v up or down the list of options system gt Full Reset Language 3 Date Style j gt Use enter to select an option Decimals Meter Text b e e e e e e e e e e e e e e e e e e o e e o ol Switch Off Used to send V Log directly into low power sleep mode even when it s connected to a USB port Note V Log will automatically go to sleep after a period of inactivity Sensor Use to change the range of a sensor or switch the built in sensors On or Off the display This option is also available by pressing P gt whilst in Meter mode Delete Data Select whether to Delete all data sets or to choose individual sets use the scroll buttons to find a data set and then gt to delete Full Reset Use to reset V Log back to its factory default conditions Please note this will
3. that it is Controlling V Log xx or Viewing V Log xx To exit V Log from WiFi mode select and then P to confirm select stop to return to the WiFi status screen Connecting V Log to a school s network Infrastructure 1 Select WiFi 2 Select Setup v 3 Enter the password as DHG2020 Scroll to v bottom row right then enter Logger Name Create Network Connect See page 12 for help using the on screen keypad Select Connect Once the scan has finished select the school s network from the list that appears and P If required enter the AP Key the school network s password provided by your school network administrator Scroll to v bottom row right then enter V Log is now connected to the school s network wiFi Status Network BTHub 704 The name of the school s network Name V Log 07F63C The name of the V Log logger 7 Connect the iPad to the school s network Start the EasySense App Select Graph from the home screen 8 Tap on the status button Not Connected bottom right of the screen Select the V Log logger s name from the list To exit V Log from WiFi mode select E and then P to confirm When you next V Log in WiFi mode it will be set to connect to the school s network so just select WiFi then Connect It is possible to connect a number of V Log WiFi loggers to the school network simultaneously each with its own unique name From the iPad select the required V Log by ch
4. 88888 gt gram p gt ae dy Samples taken 3 gt Press the enter button to collect up to 10 samples Data Harvest Group Ltd 2014 6 EASYSENSE V Log User Guide DS133 1 EasyLog Select EasyLog to begin logging continuously until stopped The bottom line of the LCD display is a visual indicator of logging as it takes place each time the line completes the logged samples are compressed and the sample rate alters Press stop to exit then either enter to confirm your choice or stop to continue logging v 5 48 8 dBA 6 356 1x 7 24 0 c Press the enter button to view a logging summary press enter again to return to the EasyLog screen EasyLog gt Snapshot Snapshot mode enables you to capture sensor readings every time B gt is pressed rather than at regular time intervals Press stop to exit then either enter to confirm your choice or stop to continue logging v CHD 5 48 8 dBA ress tne enter Dutton TO snapshot B gt 69 356 1x Dre 7 24 0 c Samples taken 8 Timing Timing is used to set up and store simple time and speed measurements Connect either one digital switch type sensor to Input 1 A or two to Input 1 A and Input 2 B before selecting Timing The options available will depend on whether one or two sensors are connected For V Log to calculate speed you will also need to select the parameter used in the experiment i e e For Speed A to B select the distance
5. USB input i STOP or BACK button Built in rechargeable battery V Log buttons p The ENTER button is used to start data collection progress to the next screen confirm a choice or take a sample u The square STOP button is used to stop data being recorded or return to the previous screen A The SCROLL buttons are used to scroll through menus on the LCD screen or to browse V measurements during data logging Data Harvest Group Ltd 2014 3 EASYSENSE V Log User Guide Sensors The plug in sensors DS133 1 Plug the sensors into the sockets on the top of the V Log logger When a sensor is connected it will automatically be detected and displayed on the LCD display V Log 8 s built in sensors The V Log 8 has 4 built in sensors Sound Light Humidity and Air Pressure Built in Sensors Sound Light level Humidity Air Pressure 40 to 110 dBA 2000 mV Indoor Slow 1 k Ix 0 to 1 000 Ix Indoor Fast 1 k Ix 0 to 1 000 Ix In Out 10 k Ix O to 10 000 Ix Outdoor 100 k Ix 0 to 100 000 Ix 0 to 100 RH 85 to 110 kPa 850 to 1100 mbar 23 to 33 inHg 200 to 1 000 m 500 to 5 000 m 500 to 10 000 m Changing a sensors range and turning a sensor on or off e Use A amp Vto scroll the list until the pointer is pointing at y Meter and select P e Select P again e Use A amp Vto scroll until the pointer is pointing at the appropriate sensor and select P e Use A amp V
6. ake changes without notice It is acknowledged that there may be errors or omissions in this publication for which responsibility cannot be assumed No liability will be accepted for loss or damage resulting from use of information contained in this manual or from uses as described What s supplied 2 x long sensor leads 3005 2 x short sensor leads 3004 1 x mini USB lead standard A to mini B CD ROM that contains the EASYSENSE PC software V3 5 or above plus documents The EASYSENSE V Log data logger Plastic storage case Data Harvest Group Ltd 2014 2 EASYSENSE V Log User Guide DS133 1 Getting to know your V Log data logger Charge EASYSENSE V Log fully before first use Connect V Log directly to a USB port on your computer or a powered USB hub using the USB cable supplied with it A full charge can take up to 8 hours A battery charging symbol will be displayed on V Log s screen while the logger is charging Your computer must be turned on and not in sleep or standby mode otherwise the battery may drain instead of charge Note V Log can also charge from a USB mains charger that outputs 5 V at 500 mA or more The V Log data logger V Log8 Sound sensor V Log8 Light sensor visible V Log8 Air Pressure amp Humidity sensor N t di t Plug in sensors inputs Battery power level indicator Q SCROLL up button LCD display Q ENTER or SELECT button _ _ SCROLL down button
7. ation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Data Harvest Group Ltd 1 Eden Court Leighton Buzzard Bedfordshire LU7 4FY Tel 44 0 1525 373666 sales data harvest co uk www data harvest co uk Fax 44 0 1525 851638 support data harvest co uk
8. between the sensor connected to input A and the sensor connected to input B 0 10 m to 6 00 m in steps of 0 10 m e For Speed at A select the width of the single interrupt card that will pass through the Light gate connected to input A 10 mm to 1 000 mm in steps of 10 mm Upon completion of a timing event the elapsed time will be displayed in milliseconds on the LCD display press gt to alter the display to show seconds Data Harvest Group Ltd 2014 7 EASYSENSE V Log User Guide DS133 1 Time example Speed example y caD GEB gt Time Time Au ming speed gt Speed A A Use the scroll buttons to choose p gt then enter to select y v gt Time at A gt Speed at A Time A tO A Speed A to Time A to B Time at A 197ms y Card width 40 0 mm Sample 3 A Speed at A 0 28 m s Press stop to exit then either enter to confirm your choice or Sample 5 stop to continue logging Counting Counting is used to count events by using digital switch type sensors connected to Input A both A and B or the AW buttons on V Log Press P to cycle through simple mathematical functions on the A and B data A B A B B A Difference Press stop to exit then either enter to confirm your choice or stop to continue logging A scroll button can be used instead of a plug in sensor to count Press the enter button to cycle through mathematical functions on the collected data Data Harvest Group Ltd
9. erase all data Any WiFi settings will not be altered see page 12 for resetting WiFi setting Language Use to alter the selected language choice Date Style Use to alter the format of the date display i e from a European to USA date format Note The actual time and date is set automatically when the logger is connected to the EasySense software Data Harvest Group Ltd 2014 9 EASYSENSE V Log User Guide DS133 1 Decimals Use to switch decimals off and on or to change the decimal format from a full stop to a comma Meter Text Use to choose whether the text height should be double or single height whilst in Meter mode V Log in WiFi mode Ci Fi lt is recommended that V Log is connected to USB power when used in WiFi mode as the power requirements are high and will drain the battery quickly Connecting V Log WiFi to a network V Log WiFi can operate in two different modes 1 Connected to its own local network Access Point V Log WiFi is set to Access Point by default In this mode the iPad connects to the network created by V Log This connection is typically used when not in range or able to access the school s network perhaps on a field trip While connected to V Log in Access Point mode the iPad will NOT be connected to any other school network resources and therefore unable to access other items such as web pages email cloud storage etc It is possible to have multiple V Log WiFi loggers each creati
10. ly the LCD will display EASYSENSE V Log and the version number of its operating system before returning to the main menu If V Log still fails to respond please contact Data Harvest Note A Hard Reset does not erase any stored data sets but if a recording is interrupted by a reset then the data being captured will not be stored Data Harvest Group Ltd 2014 13 EASYSENSE V Log User Guide DS133 1 Warranty EASYSENSE V Log is warranted to be free from defects in materials and workmanship for a period of 12 months from the date of purchase provided it has been used in accordance with any instructions under normal laboratory conditions This warranty does not apply if V Log has been damaged by accident or misuse In the event of a fault developing within the 12 month period EASYSENSE V Log must be returned to Data Harvest for repair or replacement at no expense to the user other than postal charges Note Data Harvest products are designed for educational use and are not intended for use in industrial medical or commercial applications WEEE Waste Electrical and Electronic Equipment Legislation Data Harvest Group Ltd is fully compliant with WEEE legislation and is pleased to provide a disposal service for any of our products when their life expires Simply return them to us clearly identified as life expired and we will dispose of them for you FCC Details This device complies with Part 15 of the FCC Rules Oper
11. ng their own separate network 2 Connecting to an existing school s network Infrastructure In this mode V Log WiFi and the iPad connect to the same existing network It has the advantage of allowing the iPad to remain connected to other resources delivered by the school network such as web access email printing and cloud storage facilities etc Note V Log WiFi uses 802 11b Make sure the WiFi network is compatible with 802 11b mode x Select Connect to connect to the W1F1 gt Connect network last accessed Setu p Select Setup to make changes e g access a different network V Log Access Point connection using the default settings 1 Select WiFi 2 Select Connect WIFI Status Network V Log AP 5DA704 The name of the access point AP network Name V Log 07F63C The name of the V Log logger 3 Connect the iPad to the V Log Access Point network e Tap on the Settings icon on the iPad e Tap on the Wi Fi link Ensure the Wi Fi button is in the ON position e Choose the V Log AP network from the list of available networks Wait until a tick appears next to the network to indicate it has been joined Data Harvest Group Ltd 2014 10 EASYSENSE V Log User Guide DS133 1 4 Start the EasySense App on the iPad Select Graph from the home screen 5 Tap on the status button Not Connected bottom right of the screen Select the V Log s name from the list 6 The status button will change to show
12. on a computer Up to 255 sets of data can be stored in V Log s memory 2 Asan interface connected to a computer V Log is entirely driven by the software on the host computer The data from the sensors is transmitted immediately to the computer and displayed on the computers screen using the options in the EasySense software This method of collection is useful for many classroom based experiments Using V Log standalone without a computer To switch V Log on press any button on the panel Notes e If V Log is operating on battery power and is idle it will automatically switch itself off after 2 minutes Press any button to resume operation e V Log does not auto switch off while powered from a USB port V Log has a menu of different options available which are displayed on the built in LCD screen There are six working modes which can be used to collect data without being connected to the computer These are Meter Pictogram Easy Log Snapshot Timing and Counting modes Data Harvest Group Ltd 2014 5 Meter Pictogram EasyLog Snapshot Timing Counting Review 1 WIFI System EASYSENSE V Log User Guide DS133 1 A menu option is selected by using A amp V to move the pointer up or down until it is pointing at the required option then press gt to select If using plug in sensors they should be connected before entering a logging mode except for Meters when they will automatically be detec
13. oosing it from the list in the EasySense iPad software To change connection back to an Access Point network 1 Select WiFi then Setup and enter the password as DHG2020 Scroll to v bottom row right then enter Select Create Network Name Password gt Start To create and connect the Access Point network without making any changes select Start Open the EasySense App select Graph tap on the status button and select the V Log s name from the list Data Harvest Group Ltd 2014 11 EASYSENSE V Log User Guide DS133 1 To alter the default settings to the Access Point network To change the Access Point name y e Select WiFi Setup and enter the DHG2020 password gt Name e Select Create Network Password Start e Select Name e Use to delete any characters from the existing name and enter the characters for the new name Scroll to V bottom row right then enter To encrypt the Access Point network e Select WiFi Setup and enter the DHG2020 password y e Select Create Network e Select Password e Enter a suitable password Name Password Start To change the V Log logger s name e Select WiFi Setup and enter the DHG2020 password e Select Logger Name e Use to delete any characters from the existing name and enter the characters for the new name Scroll to Y bottom row right then enter y gt Logger Name Create Network Connect E y Reset to the default Access Point Setting
14. s Create Network e Select WiFi Setup and enter the DHG2020 password Connect e Select Reset Settings Confirm your choice gt Reset Settings Using the on screen keypad e Use W amp A buttons to go forward or back through the alphabet Enter Password numbers symbols on the keyboard DHG2020 e Use gt to select accept the symbol under the dark cursor eO kos Use I to delete a character QRSTUVWXYZ0123456789 ao A _ lt gt Vv x e Move the cursor to the tick vsymbol and press P to accept the entered password e Move the cursor to the cross X symbol and press P to leave this screen with any characters entered to be rejected and ignored Connecting a group of iPads to a V Log It is possible for a group of devices to connect to one V Log WiFi simultaneously to allow students to work collaboratively on a single experiment Note Performance maybe impacted if lots of iPads are connected to the same logger When connecting to V Log the first iPad to connect is given control of the logger and will therefore be able to setup start and stop the experiment All subsequent iPads that connect to Data Harvest Group Ltd 2014 12 EASYSENSE V Log User Guide DS133 1 the logger are given Viewer status they will see the setup changes made by the controller and as data is captured it will appear in real time When the recording stops all iPads will automatically save their own cop
15. ted and then display readings Meter In Meter mode V Log will display measurements from the sensors plug in or built in sensors on the LCD screen but will not store any data gt is used to check or change the sensors range or to switch a sensor off is used to temporarily halt updates to the sensors readings Two lines Jf bottom right indicate that the display is paused Press stop to pause the display then either stop again to exit Meter mode or gt enter to continue taking measurements 50 9 dBA 6 150 1x Press the enter button to switch gt HERE gt 7 100 88 kPa a sensor off or change its range 8 35 9 RH The size of the text in Meter mode can be altered From the System menu select Meter Text then either Single Height or Double Height With double height selected data from up to 4 sensors is visible on the screen scroll to see more If single 100 88 kPa height is selected then the data from up to 8 sensors is visible an Pictogram Pictogram uses an image block or bar to represent the data Each segment represents a 10 of a total range or span of the sensor and displays the number proportional to the reading Sensor readings are captured every time gt is pressed rather than at regular time intervals Up to 10 samples can be stored in each set of data Press stop to exit then either enter to confirm your choice or stop to continue logging v Icon 1 3888 Pictogram Block 8 5
16. to scroll until the pointer is pointing at the A appropriate option and select P Note If a sensor only has one range then only Turn Off will be available Data Harvest Group Ltd 2014 gt Meter Pictogram EasyLog v 5 Sound 6 Light 7 Pressure Vv Light Set range Turn Off EASYSENSE V Log User Guide Range The pointer will indicate the current range selected Use A amp W to scroll until the pointer is pointing at the required range Select gt to choose that range Select to exit the sensor option window Turning a sensor ON or OFF the display The built in sensors can be switched On or Off the display With the pointer pointing at Turn Off On press P to alter from Off to On or visa versa e Select to return to the Meters window Ways to capture data with V Log There are different ways that V Log can be used to collect data DS133 1 v CB Internal Light gt 0 10k Ix 0 100k 1x A Light Set range gt Turn Off A 1 As a stand alone instrument V Log is used to display collect and store data while disconnected from the computer i e a Display readings on its LCD screen but not stored using Meter mode b Display collect and store data using V Log s logging menu options e g Pictogram EasyLog Snapshot Timing and Counting The data collected is stored in V Log s memory to either be reviewed on V Log s screen or retrieved to the EasySense software
17. y of the captured data in the internal iPad memory One iPad cannot change or delete the data held on another iPad To leave a group simply tap on the status button again to disconnect bottom right of the iPad screen To release or swap control of the V Log the controlling iPad simply taps on the Connected button this will disconnect all iPads A new controlling iPad can be chosen by ensuring that it is the first to re connect WiFi Technical Details V Log WiFi is a wireless enabled data logger It is classed as a mobile device and has a usable transmission range of 0 2 m to 10 m in open air Compatible with IEEE 802 11b Supports WEP WPA Personal TKIP and WPA2 Personal AES Security 802 1 1i Frequency Range 2412 2462 MHz Channels supported 1 to 11 V Log WiFi will automatically detect and use the required security protocol Hereby Data Harvest Group Ltd declares that V Log WiFi is in compliance with the essential requirements and other relevant provisions of Directive 1999 5 EC A full copy of the Declaration of Conformity can be obtained by writing to the following address Data Harvest Group Lid 1 Eden Court Leighton Buzzard Bedfordshire LU7 4FY UK Hard Reset If V Log fails to respond to the computer or a button press carry out a hard reset AD 1 If necessary attach V Log to USB power O 2 Press V A at the same time for a second and then release lf the hard reset has been done correct
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