Turner Designs Little Dipper 2 Manual Download Page 1

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Little Dipper



2 In-Line Fluorometer

December 7, 2018

P/N 998-2821

Version D

TURNER DESIGNS

1995 N. 1

Street

San Jose, CA 95112
Phone: (408) 749-0994
FAX: (408) 749-0998

Summary of Contents for Little Dipper 2

Page 1: ...Little Dipper 2 In Line Fluorometer December 7 2018 P N 998 2821 Version D TURNER DESIGNS 1995 N 1st Street San Jose CA 95112 Phone 408 749 0994 FAX 408 749 0998...

Page 2: ...ce 7 3 2 Calibration 9 3 3 Calculating Concentration Coefficients 12 4 Recommended Measurement Practices 4 1 Minimizing Variation in Signal 13 4 2 Temperature Considerations 13 5 Maintenance and Warra...

Page 3: ...of life product proceed as follows If you purchased your instrument through a Turner Designs Distributor please contact your local representative They will instruct you where to return the end of lif...

Page 4: ...t wavelength The intensity of the emitted light is proportional to the concentration of the fluorophore in the sample or source water Turner Designs Little Dipper 2 has a low maintenance design that w...

Page 5: ...nal and cause erratic readings see Section 4 0 2 2 Tee Installation We recommend the following installation procedure for installing the Little Dipper 2 onto the mounting tee provided for flow through...

Page 6: ...esigns Little Dipper 2 uses a Light Emitting Diode LED at a specific wavelength to excite the fluorophore of interest in samples or source water Upon excitation the fluorophore emits a different wavel...

Page 7: ...mum PC Requirements Intel Pentium 133 MHz microprocessor Microsoft Windows 98 or higher 32 MB of RAM 800 x 600 SVGA resolution 3 1 2 Software and Calibration Cable Installation Included on the USB fla...

Page 8: ...e USB flash drive window and open the LD2 software folder and double click on the Setup exe icon 9 Follow the screen prompts to install the LD2 application and the accompanying National Instruments ap...

Page 9: ...e Little Dipper 2 has been established in the LD2 Software you can proceed with calibration 1 Obtain a glass beaker with a known volume of the source water you will be measuring Place the beaker on a...

Page 10: ...e water make a solution using your fluorophore of interest that represents a concentration you intend to measure or use Turner Designs prepared calibration standards Contact Accessory Sales to purchas...

Page 11: ...n is complete the following screen will appear 10 You can now install the Little Dipper 2 in line with the system you intend to monitor following installation instructions provided see Section 2 2 Dat...

Page 12: ...the slope of your equation using example data from Table 1 Equation 2 m Cs Cb Rs Rb m 100 0 19 4 100 15 6 67 Finding the c constant using example data from Table 1 Equation 3 0 m Rb C 0 m 4 C c 26 68...

Page 13: ...er fluorescence values can be corrected for temperature effects if the temperature correction coefficient of the fluorophore being measured is known Table 2 lists known temperature correction coeffici...

Page 14: ...ncluded in the Turner Designs Application Note A Practical Guide to Flow Measurements Table 2 Temperature Coefficients for specific dyes Changes in the dye concentration are exponential as opposed to...

Page 15: ...tion concentration using your equation determined from Section 3 3 and compare to the actual solution concentration 4 If the calculated concentration varies by more than 5 of the actual solution s con...

Page 16: ...pecific legal rights and you may have other rights which vary from state to state Damage incurred in shipping is not covered 5 4 Warranty Service To obtain service during the warranty period the owner...

Page 17: ...assist you by phone or correspondence we will be glad to at no charge Repair service will be billed on a fixed price basis plus any applicable duties and or taxes Shipment to Turner Designs should be...

Page 18: ...998 2821 Rev D Page 18 Equipment Specified as Electrical and Electronic Waste...

Page 19: ...ght Source Light Emitting Diode Detector Photodiode Warm up time 5 seconds Dimensions Length 8 63 in 21 9 cm Diameter housing 1 30 in 3 3 cm Diameter flange 1 72 in 4 4 cm Weight 4 4 oz 125 g Material...

Page 20: ...Connection Red Supply Voltage 8 30 VDC PSU Positive Connection Black Supply Ground 0 VDC PSU Ground Connection Orange Signal out to data logger A 4 20 mA DC Multimeter A Connection Green Brown Signal...

Page 21: ...hen click Properties If 64 bit Operating System is listed next to System type you re running the 64 bit version of Windows Vista or Windows 7 If 32 bit Operating System is listed next to System type y...

Page 22: ...8 logo The System type will say either 64 bit Operating System or 32 bit Operating System Citation Is my PC running the 32 bit or 64 bit version of Windows Microsoft Corporation Viewed online on Febru...

Page 23: ...pendix D Tee Modification It is possible to modify the tee to add a clean out plug or other item directly opposite the LD2 This can be done by drilling and tapping the small boss shown in the picture...

Page 24: ...in blank solution or source water that does not contain the fluorophore of interest 5 Using control box commands set the blank 6 Put the sensor in a solution with a known concentration of the fluoroph...

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