Tamilnadu Water Supply And Drainage Board Tender

Microcontroller based pH meter , Digital, 4 ��� LED or LCD display, bench model, range 0-14 pH, accuracy - sensitivity 0.01 pH, with automatic temperature compensation with combined glass electrode, electrode holder, 3 point calibration for pH, MV-0 to 1999 MV, Slope-90% to 110%, 220V AC operated. warranty min 1 year.

Turbidity meter , Digital, Range 0-2000 NTU, Resolution 0.01 NTU for 0 - 100 NTU, 0.1 NTU for 100 - 1000 NTU, 1 NTU for 1000-2000, Repeatability � 3%, Source-Projector lamp, Detector- Photodiode., calibration up to 3 points, including sample vials. Warranty min. -1 year.

Flame Photometer , Digital, dual channel - simultaneous display for both Na & K, capable of measuring 4 elements with single aspiration i.e. Na, K, Li and Ca with filters for Na, K, Li and Ca, 3 digit, Full scale sensitivity � Na-2 ppm, K-1 ppm, Li-1 ppm and Ca-30 ppm, operated on LPG supply, with compressor. warranty min 1 year.

UV Visible Spectrophotometer with Computer and accessories , Instrument with interface - Graphical colour display, touch screen, Desk top PC, Printer with following specifications with ingress protection IP- 32, Certificate for dust proof and water proof of equivalent and with all other necessary accessories. Storage capacity- Minimum 2000 Data- Date, time, Sample ID, User ID and result, Minimum 50 user capacity, Minimum 240 pre installed programmes with scanning speed minute per 1 scan minimum 20 scan data storage. Designed calibration with down loading facility for stored data in standard report format. Should accept and contains Quartz cuvettes - 25.4 mm, 1cm, 2cm, and 5 cm rectangular. Operating mode - Transmittance %, Absorbance and concentration. Source Lamp - Tungsten for Visible, Deuterium for UV . Wave length range - 190 to 1100 nm. Wave length accuracy - Plus or minus 1nm, bandwidth -1 nm. Wave length resolution - 0.1nm with automatic calibration and selection. Operating temperature - 10 deg. to 40 deg. C, Humidity - 90 % Maximum, Power requirement - 200 to 240 v. Photometric range - Plus or minus 3.0 Absorbance. Photometric accuracy - 5 m Abs at 0.0 to 0.5 Abs. 1 % at 0.50 to 2.0 Abs. Specifications for PC- 1. Mother Board Pentium, Intel core I3 with mother board, 2. Ram - 4 GB, 3. HDD - 500 GB, 4. Bus speed - with suitable operating system. 5. LED Monitor - 18.5 inch 6. DVD Writer, 7. Key Board, 8.USB Port - 6 nos. 9. Optional mouse- Optical mouse, 10. UPS - 2 KVA Specification for Printer - Colour Printer with scanner. The instrument should have the following additional specifications. Detector - Silicone photodiode detector, Cuvette capacity- 0.5 to 5 ml, Sample compartment sample - Suitable to accommodate sample cells with volume from 0.5 to 5ml, Band width - 2nm, Beam -Dual beam or Split Beam. Warranty min. 1 year.