S P NIT No. 05(25-26)/CWA(WnS)II/Item No. 01

LED Fluorimeter Technical Specifications of LED Fluorimeter for uranium analysis in water samples Analytical Technique - Fluorescence of uranium salt Element Analyzed - Uranium in aqueous medium Excitation Source Energy of LED per pulse Pulse to pulse variation of output energy Life of source of excitation - - Pulsed UV LEDs (Light Emitting Diodes) emitting at 400 nm Wavelength and with suitable filter.20 µJ or higher less than 1% 5 Years Detector - Photomultiplier tube with precision multilayer optical filter. Analyte volume - 6 ml Cuvette - External Size -12.5mm x 22.5 mm x 45 mm Made from Ultra low fluorescence Fused Silica Open top with PTFE lid Dynamic range - 0.1 – 1000 ppb (0.1 - 1000 microgram per litre). Accuracy - Better than 10%. Can be significantly better if the instrument is used in temperature controlled environment. Reproducibility - Better than 5 % Modes of operation - Standard Addition Mode (Spike Mode) Calibrated Fluorescence Mode (Calibration Curve Mode) Uncalibrated Fluorescence Mode (Fluorescence Count Mode) Averaging - The instrument averages 256 measurements and displays this average. This is automatically repeated five times and the five averages, their Standard Deviation and Coefficient of Variances are displayed. The average of these five averages i.e. average of 1280 measurements is used for calculation of uranium concentration. This can be increased to more than 2000 pulses Time for one Measurement - About 1 sec Display - 178 mm (7”) Full Color Touch screen. The touch screen is interactive and apart from displaying the results, guides the operator in use of the instrument. Electronics - The instrument has a Microprocessor and a Single Board Computer which operates the instrument and does all the necessary calculations. The instrument has 16 bit precision Analog to Digital converters to convert the LED pulse and fluorescence signal to digital format for further processing. All other electronics such as OP Amps etc are high precision With low drift. Data Processing And Software - The Single Board Computer (SBC) in the instrument operates On windows software. The SBC calculates uranium concentration in whichever mode is being used and displays it on the screen. The instrument will store details of more than 100,000 measurements. These can be downloaded to a pen drive and then to a PC for further processing. Accessories Accessories included with each instrument are – a. Adaptor to permit operation of the instrument from 230V A/C. b. Four port USB hub c. Keyboard. d. Mouse. e. Stylus for touch screen operation. f. Manual for operation of the instrument g. Dust cover. Power Requirement - 100-230 V A/C Power Required – About 8 Watts An adopter to enable operation from 100-230 V A/C is Provided Warrantee – One Year Size and Weight – L x W x H = 345 mm x 350 mm x 105 mm Weight – 5 Kg

Eight Cuvette made from Ultra low fluorescence fused silica

Measurement kit containing - i. 100 ml of 100 PPM certified Uranium standard solution ii. Three variable precision micropipettes ranging from 0-100 micro liter, 0-1 mL and 1-10 mL with 100 disposable tips with each pipettes iii. Chemicals for making Fluren/Buffer solution suitable for about 50000 measurements. iv. One Packet Whatman filter paper

Data Acquisition System (i7 processor, 16GB RAM, 512GB/1TB SSD, 14”/22” display, MS Office and with latest windows operating system

Laser Printer

One UPS to operate the instrument without power

Please Enable Macros to View BoQ information