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Data Harvest EASYSENSE Vu+, Reference Manual

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EASY

SENSE Vu+ Reference Manual                                                                                      DO255 (3) 

26 

 Data Harvest Group Ltd. 

Specifications 

128 x 64 graphic display 

Firmware upgradeable 

USB compatible communication V1.1 & V2.0 compatible 

Operating range: 0 - 40

C and 0 to 95%RH (non-condensing). 

10 bit sampling resolution 

Graph and Scope maximum logging speed: 20 millisecond (ms) interval between samples 

Digital timing: Resolution = 5.3 microseconds 

 
Power specifications: 5 V at 500 mA or more 
 
Weight of Vu+: approx. 167 g 
 
Dimensions: H 36 mm max., W 90 mm, D 130 mm. 
 
 
Bluetooth 4.2 low energy radio, single mode compliant  
Transmit (TX) power: 0 dBm 
Receiver (RX) sensitivity: - 90 dBm  
Usable transmission range: up to 10 m in open air 
Frequency Range: 2.402 to 2.480 GHz operation 

 

Care & Maintenance 

 

Clean with a damp cloth, do not immerse in water or detergent. Vu+ is 

not

 waterproof. 

 

Vu+ is suitable for use in an operating range of 0 - 40

C and 0 to 95%RH (non-condensing). 

 

Do not subject to extreme heat or cold or leave in a location where it will get wet.  

 

If

 

Vu+ has been left in the cold, let it warm to near room temperature before waking it from sleep.   

 

Do not expose to direct sunlight for extended periods of time.  

 

Do n

ot expose to temperatures greater than 60˚ C, e.g. near a heater or inside a car in hot 

weather.  

 

Do not store Vu+ with its battery fully discharged. Ideally Vu+

 

should be stored at least 

40% or 

more

 state-of-charge. See 

page 24

. 

 

Updating EASYSENSE Vu+’s Firmware  

Occasionally Data Harvest may release updated firmware which will contain improvements or new 
features. Updates will be made available from the 

Data Harvest website

. To update the firmware of 

your 

EASY

SENSE Vu+ logger:   

 

Step 1.

 Copy the English Firmware Update for Vu+ onto the hard disc of your computer and run the .exe. 

 
 

 

 

Step 2

. Connect Vu+ to the computer using 

the USB cable. 
 
 
 
 

Summary of Contents for EASYSENSE Vu+

Page 1: ...EASYSENSE Vu Reference Manual ...

Page 2: ...r s range or turning a sensor on or off 6 Ways to capture data with Vu 6 Using Vu standalone without a computer 7 Meter 7 Pictogram 8 EasyLog 9 Snapshot 10 Timing 11 Stopwatch 14 Counting 14 Review 15 Bluetooth 15 System 16 Switch Off 16 Sensor changing range or turning on or off 16 Delete Data 17 Full Reset 17 Language 17 Date Style 17 Decimals 18 Logger Name 18 About 18 Using Vu connected via US...

Page 3: ...y before first use Connect Vu directly to a USB port on your computer or a powered USB hub using the USB cable supplied with it Note Vu can also charge from a USB mains charger that outputs 5 V at 500 mA or more A full charge can take up to 8 hours A battery charging symbol will be displayed on Vu s screen while the logger is charging Your computer must be turned on and not in sleep or standby mod...

Page 4: ...urn to the previous screen The SCROLL buttons are used to scroll through menus on the LCD screen or to browse measurements during data logging To operate EASYSENSE Vu press any of these buttons Sound sensor grid visible Inputs A and B for plug in sensors Light sensor visible Temperature sensor not visible LCD display STOP or BACK button Built in rechargeable battery USB input Battery power level i...

Page 5: ...selected for use in the classroom In Out 10 k lx This medium range is suitable for recording bright light levels indoors or low light levels outdoors Outdoor 100 k lx This larger range is suitable for recording light level outdoors in sunlight which makes it ideal for environmental monitoring Temperature sensor This sensor has six ranges to choose from three Celsius and three Fahrenheit The range ...

Page 6: ...nd press enter Note If a sensor only has one range then only Turn Off will be available Set range The cursor will indicate the current range selected Use the up or down buttons to scroll the list until the cursor is pointing at the required range Press enter to select the range Press the stop button to return to the sensor window Turning a built in sensor ON or OFF the display With the cursor poin...

Page 7: ... in LCD screen There are seven working modes which can be used to collect data without being connected to the computer These are Meter Pictogram EasyLog Snapshot Stopwatch Timing and Counting modes A menu option is selected by using the scroll buttons to move the cursor up or down until it is pointing at the required option then press the enter button to select If using plug in sensors they should...

Page 8: ...a to be represented Press enter to select Each time you press the enter button Vu will take a reading from the sensors built in and any plug in and will show the number of samples taken so far Use the up or down buttons to scroll and view data from the sensors Note If Vu goes into sleep mode during logging press any button to wake up the logger and then to take a reading When you have finished sam...

Page 9: ...rate alters Press the enter button to see a logging summary i e samples taken current logging interval and the elapsed time days hours minutes seconds Press enter again to return to the normal screen Note If Vu goes into sleep mode during logging any button press will wake up the logger When the investigation is complete press the stop button Vu will continue to log data until you press the enter ...

Page 10: ...e from Home in the EasySense software Note If you would prefer to record remotely for a specified time span use Remote Setup Remote from the Home screen in the EasySense software Snapshot Snapshot mode enables you to capture sensor readings every time the enter button is pressed rather than at regular time intervals Sample Rate Interval seconds Samples Days Hours Min Sec 40 per sec 0 025 25 ms 0 1...

Page 11: ...t 650 samples can be stored in one data set the limit is dependent on the number of sensors The contents of the data set can be Reviewed on Vu select Review from the main menu use the buttons to locate the data set press enter to select Use the buttons to scroll through individual readings Downloaded to a computer by selecting Retrieve Remote from Home in the EasySense software see page 23 Timing ...

Page 12: ...eed at A Time or Speed from A to B or Time A to A stopwatch Press the enter button to select If Speed is selected scroll to choose the parameter that matches your setup Press the enter button to select For Speed at A select the width of the single interrupt card from 10 to 120 mm For Speed from A to B select the distance from the sensor connected to A to the sensor connected at B from 0 10 to 6 0 ...

Page 13: ...een in the EasySense software see page 23 Other calculations can be performed on the timing data by downloading to the EasySense software then using the Show Data as function from the Settings menu in Timing It will be necessary to enter the parameter used in the investigation e g the length of a segment of a double interrupt card to calculate acceleration from a single Light gate at A Timing opti...

Page 14: ...ut from those sensors If you are using plug in digital sensors connect them to input A and or B If the display is turned off press any button to wake up Vu While in the main menu use the up or down buttons to scroll until the cursor is pointing at Counting Press the enter button to select Press either enter to confirm your choice or stop to continue logging The scroll icons indicate the up and dow...

Page 15: ...elect Review from the main menu use the buttons to locate the data set press enter to select Downloaded to a computer by selecting Retrieve Remote from the Home screen in the EasySense software see page 23 Review You can use Retrieve to view the readings previously stored in a data set on Vu s screen The most recently stored data is shown first 1 While in the main menu use the up or down buttons t...

Page 16: ... switched off so only Light measurements are displayed Use the up or down buttons to move the cursor until it is pointing at the appropriate sensor and press enter Use the buttons to move the cursor until it points at the appropriate option either Set range or Turn On or Off and press enter Note If a sensor only has one range then only Turn Off will be available Set range The cursor will indicate ...

Page 17: ...utton to select Select the enter button to confirm the reset or stop to cancel and exit Once done press enter to return to the System menu Language Use to alter the selected language With the cursor pointing at Language press the enter button to select The screen will show the language options The cursor will indicate the current language selected If you wish to alter the choice use the scroll but...

Page 18: ...the existing name and then scroll and select characters for the new name maximum of 11 characters When you ve finished scroll to bottom row right then enter Use the scroll buttons to go forward or back through the alphabet numbers symbols on the keyboard Use enter to select accept the symbol under the dark cursor Use to delete a character Move the cursor to the tick symbol and press enter to accep...

Page 19: ...Home window will open Select one of the experiment modes e g EasyLog Pictogram Meters Snapshot Counting or Timing Using Vu after the initial setup Use the USB cable to connect Vu to the computer Open the EasySense software program Select one of the experiment modes e g EasyLog from the Home screen Using Vu connected via Bluetooth to a computer When connecting to a Windows computer V3 8 or later of...

Page 20: ...in Settings on the device that Bluetooth is On Select Bluetooth on Vu Start the EasySense software On an iPad tap on the Not Connected text bottom right of the screen On the Android select the connect icon top right of the screen Select the Vu s name from the list The status will change to show that it is Controlling xx or Viewing xx When you ve finished select the connection status icon in the Ea...

Page 21: ...t Stop icon to begin recording Click in the graph area to collect a sample for each active sensor Click on the Start Stop icon to stop data being recorded Graph Level 2 and 3 only Graph is pre set to record sensor values against a chosen time span as a line graph display The window will open with the Real time logging wizard 1 Deselect the tick next to any sensors from which readings are not requi...

Page 22: ...vel 1 1 Deselect the tick next to any sensors from which readings are not required Next 2 Select the total recording time Finish 3 The settings will be downloaded to Vu and a message on the computer will inform The logger is now set up for remote logging Click on OK Vu can now be disconnected from the computer and placed in its recording position Recording will start when the enter button on Vu is...

Page 23: ...ge of a sensor can be altered In Vu Meters see page 6 In Vu System see page 16 Using Sensor Config in the EasySense software Settings menu Using New in the EasySense software EasyLog Graph Pictogram Snapshot Counting mode Powering Vu EASYSENSE Vu can be powered by 1 By the USB port whilst connected to the computer 2 By its internal batteries when charged Connect Vu directly to a USB port on your c...

Page 24: ...strate the need for replacement When this happens contact Data Harvest and request a battery replacement pack for EASYSENSE Vu Product No 5007 Auto switch off While battery powered Vu will normally auto switch off go into low power sleep mode to reduce power consumption if more than two minutes have passed since any measurements have been taken or a button was pressed If Vu is accepting power from...

Page 25: ...ware version number A description of the problem being encountered If possible telephone from a location where you can operate Vu with the computer Full Reset A Full Reset will return Vu back to the factory default It will Erase all stored data sets Automatically return the built in sensors to their default range Light Indoor 1 k Lux Temperature 0 to 50 C Return the date format to DD MM YY Return ...

Page 26: ...u is not waterproof Vu is suitable for use in an operating range of 0 40 C and 0 to 95 RH non condensing Do not subject to extreme heat or cold or leave in a location where it will get wet If Vu has been left in the cold let it warm to near room temperature before waking it from sleep Do not expose to direct sunlight for extended periods of time Do not expose to temperatures greater than 60 C e g ...

Page 27: ...ts side not its end when measuring a surface temperature Do NOT put any part of the sensor in a direct flame or on a hot plate Temperatures higher than 150ºC will damage the sensor The PVC insulation on the connecting cable has a working range of 10 to 85ºC so keep this cable away from the source of heat Avoid submerging the sensor beyond the stainless steel portion Wash the sensor thoroughly afte...

Page 28: ...duct warranty see the Data Harvest website at https data harvest co uk warranty Data Harvest Group Ltd 1 Eden Court Leighton Buzzard Bedfordshire LU7 4FY Tel 44 0 1525 373666 Fax 44 0 1525 851638 e mail sales data harvest co uk support data harvest co uk Website www data harvest co uk Concentration of Hydrochloric acid Maximum exposure 1 mol dm 3 20 minutes 2 mol dm 3 10 minutes 3 mol dm 3 5 minut...

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