Little Dipper
2 In-Line Fluorometer
December 7, 2018
P/N 998-2821
Version D
TURNER DESIGNS
1995 N. 1
st
Street
San Jose, CA 95112 Phone: (408) 749-0994 FAX: (408) 749-0998
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 18: ...998 2821 Rev D Page 18 Equipment Specified as Electrical and Electronic Waste...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
Страница 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...
