bids are invited for potable analyser kit ( d.o, ph, temp.cond ) - measuring range ph: – 2.0 … 20.0 ph– 2.00 … 20.00 p– 2.000 … 20.000 ph, mv:± 2000; ± 1250.0accuracy ( ± 1 digit ) ± 0.004 ph , ±0.1 mvtemperature – 5.0 … 105.0 conductivity, tds, salinity & resistivity measuring range conductivity 0.0 … 2000 ms / cm, additionally 0.00 … 19.99 μs / cm, k = 0.1 cm–1, tds: 0 … 1999 mg / l, 0 … 199.9 g / l salinity: 0.070.0 ( acc. iot ) , sp. resistivity: 0.00 … 20 mo cmcell constants automaticccuracy ( ± 1 digit ) ± 0.5 % dissolved oxygen measurement conc. measuring range 0.00 to 20.00 mg / l saturation measuring range 0.0 to 200.0 % partial press. measuring range 0.0 to 400 hpa accuracy ± 0.5 % temperature 0 to 50 °c , turbidity meter ( potable ) - the instrument should be a micro processor based, laboratory and portable, suitable for measurement even for coloured samples and with the following specification.display2 line 16 characters lcd detectorphotodiode ranges0-1000 ntu in four ranges ( automatic ) a ) 0-1ntu b ) 0-10 ntu c ) 0-100 ntu d ) 0-1000 ntu accuracy±1.5% of fsd in 0-500 ntu ±2% of fsd in 500-1000 ntu repeatability±1% of fs ( std. ) calibration formazine standard solution data storagecalibration and data storage in memory power requirement230 v ac ± 10%, 50 hz. standard accessoriesall necessary accessories to make instrument functional such as epoxy – coated steel case, instruction manual, power cable and plug, dust cover, light shield, test tubes ( 25mm diameter ) [ 04 nos. ] and stand.warrantycomprehensivewarranty / guaranteeshouldbevalidfor three years. , specific ion meter - 1.0descriptionshould be microprocessor controlled with rs 232-c output facility. he front panel should be splash proof, corrosion resistant and impact resistant. 2.0modeph, concentration, temperature, mv 3.0ph range0.00 to 14resolution0.001accuracy± 0.005slope80 to 120 %calibrationauto three to five points calibration ( automatic buffer recognition ) temperature compensationautomatic throughout the range4.0concentration range0.001 to 19900 ppb / ppm resolutionat least one significant digitaccuracy± 0.5%5.0temperature range-10° to 130°c resolution± 0.1°c6.0millivolt range± 1500resolution0.1mvaccuracy± 2.0 mv or ± 0.05%7.0timerdate and time can be called up and recorded any time 8.0displaygraphic lcd display, lcd dot matrix 128 / 64 dps panel with backlight and feather touch keys.9.0readyindication of stable value reached.10.0blankoptional entry of blank or back ground solution, correction11.0power9voltslineadaptororcompatibleadaptorfor ( 230±10 ) volts / 50 hz ac12.0requirementincaseofpowerfailure, securestorageofallcalibration and programme data. 13.0inputatleast1ormorebnc / deininput.1pintipf-type, banana type, rs -232c, printer connection facility14.0drift< 50 micro volts / °c15.0electrodecomplete electrodes sets for reference ammonia, fluoride. nitrate, &phalongwith instruction / application sheetstandardaccessories including electrolytes, standard solutions ( ppm ) etc.16.0othersthe instrument should be complete with connecting cable, adaptorfor230±10voltsac50hzpowersupply, dustcover, electrodestand ( adjustable ) , perationand maintenance manual along with the accessories with spares and consumables for three years of trouble free operation total quantity : 1