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GENERAL DESCRIPTION  

The PlantPen model 

PRI 200

 measures 

Photochemical Reflectance Index

 (PRI) in two narrow wavelength 

bands  centered  close  to  531  nm  and  570  nm. 

The  photochemical  reflectance  index  (PRI  =  (R531–

R570)/(R531+R570))  correlates  with  the  epoxidation  state  of  xanthophyll  cycle  pigments

 

and 

photosystem  efficiency in  many  studies  under  diverse  conditions,  such  as  different 

1

.  PRI  is  sensitive  to 

changes  in  carotenoid  pigments  that  are  indicative  of  photosynthetic  light  use  efficiency,  the  rate  of  carbon 

dioxide uptake, or as a reliable water-stress index. As such, it is used in studies of vegetation productivity and 

stress.  

The PlantPen model 

NDVI 300

 measures 

Normalized Difference Vegetation Index

, which is an important 

indicator of chlorophyll content in plants. The pigment in plant leaves, chlorophyll, strongly absorbs visible light 

(from  0.4  to  0.7  µm) for  use in  photosynthesis.  The  cell  structure  of  the  leaves,  on  the  other  hand,  strongly 

reflects  near-infrared light  (from  0.7  to  1.1  µm).  The  differences  in  plant reflectance  in  the  visible  and  near-

infrared  wavelengths  is  used  to  calculate  NDVI  index  as  follows:  NDVI=((NIR-VIS)/((NIR+VIS)),  where  VIS  and 

NIR  stand  for  the  spectral  reflectance measurements  acquired  in  the  visible  (red)  and  near-infrared  regions, 

respectively.  NDVI  is  directly  related  to  the  photosynthetic  capacity  and  hence  energy  absorption  of  plant 

canopies 

2

. The 

NDVI 300

 device compares reflected light at two distinct wavelengths, 660 and 740 nm.  

PlantPen  models 

(

PRI  200-B,  PRI  200-U,  NDVI  300-B,  NDVI  300-U)

  incorporate  one  of  the  two  offered 

communication modules: 

B

luetooth or 

U

SB cable. FluoPen 1.0 software provides visualization and data transfer 

routines to a computer. 

 

1

 

John Gamon, Josep Penuelas, and Christopher Field (1992). A narrow-waveband spectral index that tracks diurnal changes 

in photosynthetic efficiency. Remote Sensing of environment, 41, 35-44. 

2

 

Sellers, P. J. (1985) 'Canopy reflectance, photosynthesis, and transpiration', International Journal of Remote Sensing, 6, 

1335-1372. 

 
 

 

Summary of Contents for PlantPen NDVI 300

Page 1: ... PlantPen PRI 200 NDVI 300 Instruction Manual Please read this manual before operating this product PSI spol sr o Drásov470 664 24 Drásov CzechRepublic FAX 420 511 440 901 TEL 420 511 440 011 www psi cz ...

Page 2: ... Bluetooth Pairing 17 Bluetooth Connection 21 PlantPen Software 23 Start up 23 Menu and Icon Explanation 24 Example of Data Transfer and Visualization 26 PRI Photochemical Reflectance Index 27 NDVI Normalized Difference Vegetation Index 27 Software Update 28 GPS Module 30 GPS Module Description 30 First Time Installation of the GPS Module 31 GPS PlantPen Operation 32 Data Download 32 WARRANTY TERM...

Page 3: ...nm NDVI Internal dual wavelength light source VIS 635 nm bandwidth 625 nm 645 nm NIR 760 nm bandwidth 750 nm 760 nm Detector Wavelength Range PRI PIN photodiode with 500 to 600 nm bandpass filters NDVI PIN photodiode with 620 to 750 nm bandpass filters Wavelenght Tolerance 5 nm Communication Bluetooth USB or serial PlantPen PlantPen 1 0 Software Windows 2000 XP or higher compatible Memory Capacity...

Page 4: ...2 Weight 180 g 6 5 oz Sample Holder Mechanical leaf clip non destructive for plants effective for sample pre darkening Operating Conditions Temperature 0 to 55 ºC 32 to 130 ºF Relative humidity 0 to 95 non condensing Storage Conditions Temperature 10 to 60 ºC 14 to 140 ºF Relative humidity 0 to 95 non condensing Warranty 1 year parts and labor see the last page of this Operation Manual for precise...

Page 5: ...0371 December 2002 EN60650 FCC Part 15 247 FCC Grantee Code R7T Bluotooth Qualified Product Notice GRA_013_04 Bluetooth Listing Identifier B01572 PlantPen models PRI 200 B PRI 200 U NDVI 300 B NDVI 300 U incorporate one of the two offered communication modules Bluetooth or USB cable PlantPen 1 0 software provides visualization and data transfer routines to a computer ...

Page 6: ...ucture of the leaves on the other hand strongly reflects near infrared light from 0 7 to 1 1 µm The differences in plant reflectance in the visible and near infrared wavelengths is used to calculate NDVI index as follows NDVI NIR VIS NIR VIS where VIS and NIR stand for the spectral reflectance measurements acquired in the visible red and near infrared regions respectively NDVI is directly related ...

Page 7: ...orPen software 7 USB cable 8 Other Accessories or Optional Features according to your specific order 9 This Owner s Manual on a USB flash disc Fig 1 Components of the PlantPen series package Numbers correspond to component number in table 1 Note If any item is missing please contact the manufacturer support psi cz Please check the carton for any visible external damage If you find any damage notif...

Page 8: ...ed communication modules Bluetooth or USB cable Depending on the version purchased design of the device might slightly differ PRI 200 U version of device is shown in figure 2 Fig 2 PlantPen series device with USB connector Leaf clip Menu key Set key Optical window Textile strap holder LC display Connector for communication cable ...

Page 9: ... To affix a new one just remove the sheeting and stick the pad on cleaned and dried surface Be sure that you placed the pad properly and that you did not cover the optical window BATTERIES The PlantPen operates from four AAA single use or rechargeable batteries They may be easily replaced by unscrewing the cover of the battery holder on the rear of the instrument Battery life is approximately 48 h...

Page 10: ...st level Sub Menus and their Options The green color represents the second level Sub Menus and their Options Full line arrows are used for the SET key Dashed line arrows are used for the MENU key To START the device please press the SET key for 1 second To CONTROL the operation of the device use the MENU key to scroll through sequential menu options on the digital display Use the SET key to select...

Page 11: ...11 CONTROL MENU TREE ...

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Page 16: ...e PlantPen and PC make sure you have these components USB enabled PlantPen USB cable fig 3 Installed FluorPen 1 0 software to your PC Fig 3 NDVI 200 U with USB connector and highlighted connector for USB cable Connect the USB cable to a computer and PlantPen as shown in fig 4 Then Switch ON the PlantPen press and hold the SET key On computer run the program Fluorpen 1 0 Please refer to page 23 for...

Page 17: ...our PC s Bluetooth card This software varies by manufacturer Please consult your PC s Bluetooth documentation for more information Switched ON Bluetooth in visible mode on both devices To pair the PlantPen with another Bluetooth device such as a computer you will need to ensure that Bluetooth is switched on visible on both devices BLUETOOTH PAIRING Please follow next steps to establish Bluetooth c...

Page 18: ...h Devices 3 Opening the Add Bluetooth Device Wizard Select Add to start the wizard fig 6 NOTE Before starting to use the wizard be sure that the PlantPen is in discoverable mode see Step 1 Fig 6 Add function of Bluetooth device 4 Searching for a New Bluetooth Device Mark the following box My device is set up and ready to be found as shown in fig 7 Go to Next step ...

Page 19: ...PlantPen icon PlantPen FluoroMeter PSI fig 7 Select Next Note Please note that your display may show more Bluetooth Device icons Fig 8 Selection and adding of Bluetooth device 6 Starting the Pairing Process Select Let me choose my own passkey Fig 9 Enter 0000 four digits Select Next ...

Page 20: ...20 IMPORTANT NOTE Your Bluetooth Pairing Passkey is 0000 Fig 9 Adding of the own passkey 7 Completing the PlantPen Pairing Select Finish fig 10 Fig 10 ...

Page 21: ...antPen press and hold the SET key Scroll to the Setting menu press the MENU key twice then press the SET key once Select BT_On to enable Bluetooth press the SET key Keep in mind that the PlantPen turns off automatically after about 3 minutes of no action Turning off the PlantPen always turns off Bluetooth 3 Starting Connection Start the PlantPen software on your PC Select Setup Device ID Ctrl I If...

Page 22: ...r when the Bluetooth feature has been turned off in one or both of the devices or when the units move outside their operating range IF THE DEVICES HAVE BEEN TURNED OFF SIMPLY TURN THEM ON AND ENABLE BLUETOOTH IN THE PLANTPEN AGAIN IF THE PLANTPEN HAS BEEN MOVED OUTSIDE THE BLUETOOTH OPERATIONAL RANGE BRINGING IT BACK INTO RANGE WITHIN 90 SECONDS WILL ALLOW IT TO RECONNECT AUTOMATICALLY IF MORE TIM...

Page 23: ...enable Bluetooth 3 Make sure that your PC and the PlantPen are properly paired 4 For PlantPens supplied with the USB communication module use provided USB cable to connect your device to a PC 5 Start the PlantPen program Points 2 and 3 apply only to users of the PlantPen FP 100 MAX and PlantPen FP 100 B See Chapter 7 of this Operation Manual for complete information on Bluetooth pairing and connec...

Page 24: ...Erases data from the PlantPen memory Menu Setup Device ID Detects the Bluetooth connected device Update Firmware Used for software updates Settings Used for modification of the program settings For more information on software updating see Chapter 8D of this Operation Manual See more information on the next page Menu Help About Offers basic information about the program Register Used for the Plant...

Page 25: ...ngle If the box is checked all measured data are visualized in one graph i e the value of each new measurement is added to the currently used graph window If the box is not checked a new graph is opened for every new measurement This feature can be helpful for a certain type of experiment when the measured data are undesirably interpreted as negative values Icon Explanation Download Downloads data...

Page 26: ... with your PlantPen Note Please note that examples below are shown for NDVI measurement Step 2 Click the Download icon or select Device Download Step 3 The Data table appears Please note that all data can be e File name Time of experiment Measured parameter Experiment description Measured and calculated values Save experiment Space for written notes ...

Page 27: ... the spectral reflectance measurements acquired in the visible red and near infrared regions respectively These spectral reflectances are themselves ratios of the reflected over the incoming radiation in each spectral band individually hence they take on values between 0 0 and 1 0 By design the NDVI itself thus varies between 1 0 and 1 0 It should be noted that NDVI is functionally but not linearl...

Page 28: ...sed during the software update Before starting any software update export all your data from the PlantPen memory into your computer Step 1 Starting Update Select Setup Update Firmware Step 2 Selecting bxn File Find Binary file with the extension bxn Select Open ...

Page 29: ...29 Step 3 Finishing Upload Select OK to start uploading of the update The bottom bar indicates the upload progress Press OK to finish upload ...

Page 30: ...e in your location GPS MODULE DESCRIPTION 1 GPS Status Indicator Green LED On Off On 1 sec OFF 2 sec Acquiring satellites Green LED On Off flashing 2 sec 2 sec Position fixed 2 Memory Storage Indicator Red LED On Memory storage full Orange LED On Memory storage full GPS unfixed Orange LED On Off flashing 2 sec 2 sec Memory storage full GPS fixed 3 Power Key 4 Battery Status Indication 1 GPS Status...

Page 31: ... 1 sec 2 sec Battery low turns off after 5 minutes Red LED On Battery charging Red LED Off Battery full or not charging Note GPS Module is equipped with Lithium ion rechargeable battery that lasts up to 24 hours of use Recharging the battery takes about 4 hours FIRST TIME INSTALLATION OF THE GPS MODULE Step 1 Enabling GPS Module in the PlantPen Software Select Setup Settings ...

Page 32: ... Step 2 GPS Positioning Switch the GPS module on and wait until the GPS position is fixed GPS green LED indicator flashes 1s ON and 2s OFF while tracking the position Step 3 Operation Be aware that while performing field experiments the PlantPen and the GPS module must be kept close to each other DATA DOWNLOAD Step 1 Enabling Communication Switch on the computer PlantPen and GPS module and set you...

Page 33: ...ect PlantPen device Download Measured data from the PlantPen to your PC Be aware that no GPS coordinates are visible at this moment Step 3 Connecting GPS Module Connect the GPS Module to your PC Communication is set properly if the hardware is recognized by your PC ...

Page 34: ...34 Step 4 Downloading GPS Data Select Device Attach GPS file to download data from the GPS module Step 5 Completing the Download Successfully downloaded GPS coordinates paired with PlantPen data ...

Page 35: ...arranty is return to base only and does not include on site repair charges such as labor travel or other expenses associated with the repair or installation of replacement parts at the customer s site The manufacturer repairs or replaces faulty instruments as quickly as possible the maximum time is one month The manufacturer will keep spare parts or their adequate substitutes for a period of at le...

Page 36: ...UBLESHOOTING AND CUSTOMER SUPPORT In case of troubles and for customer support please write to support psi cz or contact your local distributor Manual Version 2013 06 PSI Photon Systems Instruments spol s r o ...

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