Delhi Jal Board-DJB has published Procurement Of Kjeldahl Apparatus For Determination Of Total Kjeldahl Nitrogen ( Tkn ) As Per Specifications And Bq. Submission Date for this Tender is 22-01-2020. Laboratory Equipment Tenders in CHIEF WATER ANALYST (W n S)-III Delhi. Bidders can get complete Tender details and download the document.
| Name of Work:Procurement of Kjeldahl Apparatus for determination of Total Kjeldahl Nitrogen (TKN) as per specifications and BQ (Approved Brands: Buchi, Foss, Behr, Borosil, Gerhardt) | |||||
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| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1.01 | 1. Kjeldahl Digestion\nNo. of Positions 20 Positions\nDigestion Station Macro digester with tube capacity of 250ml in Borosilicate Glass\nType of Digester Machine Monoblock 1050 pure Aluminum block digester with high heating efficiency\nDisplay LCD display with display of SV (set value) and CV (current value) for temperature controller\nHeating Range Maximum temperature 500 °C with precision of ± 1 °C.\nHeating Chamber Unit Stainless Steel\nPower Consumption (W) 2800 W\nCurrent Consumption (A) 6\nTime Setting LCD Display Yes\nVoltage (V) 220/230 V\nCooling Auxiliary cooling stand with thawing fans for faster sample cooling.\nCartridge of heater SS316 cased cartridge for long heater life and less power consumption\nBody Material Category defining aesthetics with powder coated body and SS 316 Tube and exhaust manifold holders\nManifold type & Material Glass manifold with tubeless attachment\nDigestion Time 90mins- 120 mins\nHeating Block digesters allow gradual sample heating with a digestion time of about 90mins\nTimer Process time set depending on sample constituents\nDimension (W*D*H)mm 410*587*736\nPrinter compatibility\n(Optional) Printer connectivity to record digestion process parameters\n | item1 | 2 | Nos |
| 2 | 1.02 | 2. Fume Scrubber \nPump delivery rate 28 LPM\nEvacuation Required Complete evacuation of acid fumes\nAir baffle material PTFE air baffle \nJar Capacity 2 litre condensation and neutralisation jars for larger fume volumes\nVacuum pump Polypropylene head/nozzle,valve in TEFLON & Diaphragm in teflon coated neoprene rubber\nGlass Component maintenance Threaded tube connectors for quick removal of glass components for maintenance\nFront shield material Transparent PC Protective front shield and easy removable bottle tray.\nCondenser type Fume condenser attachment for pre condensation of excess acid, hence saving neutralization chemicals\nCarbon Bottle Carbon adsorption bottle removal any trace acid from exhaust air\nCurrent Consumption 1A\nVoltage 220/230 V\nDimension(W*D*H)mm 410*365*375mm\nAuto start and stop Auto switching on and off scrubber during and after digestion\n | item2 | 2 | Nos |
| 3 | 1.03 | 3. Cooling Station\nCooling sample Increase sample throughput by adding cooling station for cooling the samples tubes after digestion\nTime Saving Save time between Digestion and Distillation by cooling down the sample.\n | item3 | 2 | Nos |
| 4 | 1.04 | 4. Kjeldahl Distillation\nTube Capacity (ml) 250 ml\nInput 20 Sample Processing\nSafety Door Auto process stop in case of accidental opening of door during process\nSample tube error System to process stop in case of accidental breakage of sample tube\nDisplay LCD \nLid transparency Full Process visibility through glass splash protector\nProcess Kill Switch System to process stop in case of accidental breakage of sample tube\nSample Loading Tray material Non corrosive GRP body at sample loading area\nReagent level Sensor Reagent level sensor compatible with standard laboratory bottles up to capacity of 5 liters\nInput water The unit can work with distilled water can or direct tap water & water softener\nReagent Dosing MOC: Borosilicate glass. With Kjeldahl trap to reduce the effect of bumping expansion bulb in condenser\nOuter body Sturdy outer body with min 1.5mm gauge acid resistant powder coated body\nUser Interface (Pro. Control) Easy rotary process parameter selector with push button for easy operation with LCD display\nHeader Capacity Dosage using bellow pumps with header capacity of 1 meter\nProgramme 10 predefined editable user storage program\nSteam Power 25% to 100%\nDosing of Distil water Automatic and precise dosage of distilled water in test tube\nDosing of Alkali Automatic and precise dosage of alkali in test tube with Single press for addition additional alkali anytime during the distillation cycle\nDosing of Boric Acid Automatic and precise dosage of boric acid\nNitrogen Recovery > 99.9%\nNitrogen Reproducibility ±1 %\nCondensing Surface Area 550 Sq cm\nSteam Generator Material SS 304 steam generator \nCurrent Consumption (A) 6.5 A\nPower Consumption (W) 1500\nVoltage (V) 220/230 V\nDimension (L*B*H)mm 440*320*725\nMaximum Distillate times (Mins) 20\nPrinter connectivity (Optional ) To record process parameters with time stamp\nWater Recirculation Optional chiller to recirculate cooling water\n | item4 | 2 | Nos |
| 5 | 1.05 | Digital Burette with Magnetic Stirrer \nCapacity 50 ml\nControl Microprocessor control motorized mechanism with “screen touch control panel”, facility to titrate dropwise.\nRecirculation Valve Recirculation Safety valve technology to allow purging without waste of reagent \nInlet Tube Inlet tube is telescopic to adjust according to bottle size.\nNozzle Dispense easily flexible nozzle.\nErrors Limit Standard Errors limits within the limits of DIN EN ISO 8655-3\nPC Interface USB drive for software and driver updates\nCalibration In-house user friendly calibration \nAdapters Sets Adapters sets 28,32,36,40,45mm threads with 360° Rotation\nBattery Capacity 14.4 V mAh Li-ion rechargeable battery\nWindow Amber/Clear Clear and Amber -inspection window for light sensitive media Titrations\nVolume Range 0.005 ml - 99.99 ml\nAccuracy 0.20%\nModes for Speed 3 dispensing speeds *Fast, Medium & Dropwise mode\nFilling of Burette Auto filling with touch screen.\nRecords PC interfaces with computer & maintain the records.\nMotor less Motor less noise free operation of Stirrer with pulse mode feature-changes direction every 30 secs for through mixing Digital display panel on stirrer to indicate RPM 15 to 1500 and timer\nTop (SS) SS top to fight corrosion and IP 65 compact design\nBeads Teflon Magnetic beads\n | item5 | 2 | Nos |
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