Tender For purchase of various apparatus/instruments required for department of chemistry, chaudhary ranbir singh university, jind - stirrer the stirrer should be made up of ceramic coated aluminium alloy top with digital speed and temperature control. the stirring speed should be 50-1500 rpm or better. the stirrer should be operational up to a temperature range of 300oc with an accuracy of 1.0oc and ip 42 protection class. the input power should be 600 w or above. the stirrer should be supplied with hemispheric bowl (100 ml= 1 no; 250 ml= 1 no) to replace oil baths and mantles in order to perform clean and safe analysis with round bottom flasks., electronic balance the electronic balance should have a maximum weighing capacity of 200 g or more with a resolution and repeatability of 0.1 mg, and a response time of 5 sec or better. the system should have automatic internal calibration with touch screen display. the system should have internal database capacity of 2500 or more with multiuser password protection feature. , vacuum pumpthe pump should be operational at a maximum power of 65 w or more with a max. vaccum of 99 mbar or more. the pump should be fitted with vacuum and filter cartridge., hot air oventhe inner chamber should be made of stainless steel and the outer chamber should be m.s powder coated. the maximum capacity of the oven should be 100 ml or more. the operational temperature should be between ambient to 250 oc or more with a temperature accuracy of 1o c. pid based digital temperature control., double distillation unitthe unit should be pyrogen free with a distillation water output capacity of 1.5 l/h. the minimum cooling water requirement should be 1lt/min. auto-power cut facility in case of halted supply of water., circulating oil baththe oil bath should be made up of stainless steel with 4 digit 7 segment led display for temperature and time. the bath should have s.s perforated tray for holding flasks. the bath should have a capacity to accommodate flask of 1l. the working temperature range should be +5 to 240 oc (0.1 oc increment) with a temperature stability of 1oc., water baththe water bath should have a capacity of 20 l within built water level sensor. the bath should be made up of stainless steel and supplied with 8 concentric rings. the bath should have digital temperature control with pt100 sensor. the system should have stirring capability with ptfe magnetic bars. , ph conductivity meter operational between a ph range of -2 to 16.00 with a resolution of 0.01 ph and an accuracy of 0.02 ph. 5 points calibration. the ec range should be in between 0.00 to 29.99 s/cm, uv cabinet operational at two uv wavelengths (254 and 365 nm). the cabinet should also be equipped with one visible light. the external body should be coated with ms powder/epoxy., flame photometerapplication: the flame photometer is used for qualitative and quantitative determination of several cations, especially for metals that are easily excited to higher energy levels at flametemperature. these metals include na+, k+, ca2+, ba2+ and li2+.specification requirementmeasuring range na+: 0 to 99.9 ppm k+:0 to 99.9 ppm ca2+ :0-99.9 ppmli2+: 0 to 99.99 ppmsensitivity na+= 0.1 ppmk+ = 0.1 ppmspecificity less than 0.5% interference when concentrations are equal to test sample concentrationsgas control-adjustable with knobsignition system-auto ignition systemflame failure-auto detectiongas cut off-automaticreproducibility-less than 1% coefficient of variation for 20 consecutive samplesusing 10 ppm na set as maximum standardlinearity-less than 1%display led, 12.5 mm (1/2")fuel supply-high-grade propane/butane mixture regulated at approximately30 psiair supply-6 l/min at 12 psi; oil and moisture freerecorder-output 0.05 to 5 v (switchable)operating manuals, service manuals, other manuals should provide user, technical and maintenance manuals in english language list of equipment and procedures required for local calibration and routine maintenance service and
Tender For corrigendum : special repair for renewel of e/m items and plant/ machinery held in charge of age (e/m) rnd agra cantt under ge (i) rnd delhi - supply , installatation , testing and commissioning of diesel driven generating set to give an out put of 500 kva, 415v ac supply 3 phase, 50 hz, 4 wire radiator mounted on common base plate complete with fuel tank, vibration damper and other accessories with fuel tank viberation damper and other accessories with acoustic enclouser as per latest cpcb-iv norms and amf panel including pcc foundation work as per oem reccommandation and taking out the old dg set from the location and deposited to mes store yard complete all as specified and directed, interanally comprising of following :-(a) diesel driven engine :- developing a net output suitable matched to give a net rated output of minimum 604 hp/suitable to drive 500 kva alternator, at 0.8 power factor 415 volts. the engine should be capable of delivering the required output at 1500 rpm, water cooled, self start, with a provision of 10% overload for one hour in every 12 hours with the following accessories and all as specified.(i) fly wheel to suit flexible coupling and fly wheel housing.(ii) air cleaner complete as per manufacturer specification. (iii) fuel injection pump. (iv) flexible coupling with guard, nuts and bolts.(v) fuel filter with mounting. (vi) oil filter with mounting.(vii) starter motor as per manufactures design.(viii) exhaust, silencer industrial type with exhaust pipe suitable length.(ix) batteries 12 volts 2x180 ah maintenance free batteries with copper lead, terminals etc.(x) instrument panel complete with microprocessor based controller comprising shut down valve indication, lcd hour counter indication, rpm indication , led lamps for fail to start, over speed /under speed . low lub oil pressure, high engine coolant temperature. gaugae.(xi) dynamo/alternator suitable rating., (b) alternator :-the above engine will be coupled through flexible coupling on an indigenous alternator mounted on a strong steel fabricated common base frame suitable for mounting in an acoustic enclousre. the alternator will be 3 phase 50 hz 1500 rpm self regulating self exciting type and have class h insulation of stator and rotor windings and generate 500 kva output at .8 power factor 4 wire 415 volts ac supply under ntp condition with a provision of 10% overload for 1 hour in every 12 hrs running. the alternator would be screen protected and fitted with shield ball/roller bearing, automatic voltage regulator.(c) control panel :- s&f amf (automatic on mains failure) control panel cpri approved outdoor ype kiosk water, dust and vermin proof and fabricated out of 3.15 mm thick crca sheet and 50mm x 50mm x 6mm angle iron powder coated suitable for 415 volts 3 phase 50 hz ac supply with and incl the following :-(i) mccb of suitable capacity(ii) necessary relays, times and power contractors of suitable rating/capacity for auto on-off the dg set and changeover of the load in case of power failure.(iii) digital mulfifunctional meter for phase wise reading of amps, voltage kwh and frequency -01(iv) internal wriring with single core solid copper conductor cable of appropriae gauge incl mumbering ferrules and control fuses.(v) earthing terminals 02 nos(vi) auto/manual start switch to by pass auto start.(vii) battery charging system suitable for charging for charging the battery provided with the dg set incl boost/stickle switch and system, dc voltmeter digital type., (d) fuel tank :- one no built in sheet metal steel tank mounted inside the acoustic encloser and of adequate capacitynot less than 740 ltr with inlet and outlet connection including the following :-(i) level indicator with float and gauge.(ii) fuel piping for fuel supply to engine and over flow to tank(iii) fuel strainer(e) acoustic enclosure :- enclousre be designed for reducing the sound level up to 75+/ 5db (average) as per is 8528 part 10 and as per approved cpcb morms. the acous
Tender For supply of diesel genset with engine capacity minimum 72 bhp, water cooled, turbocharged intercooled, 4 cylinder, fuel type: high speed die sel, with 12 v electrical starting system, coupled to alternator to produce minimum 58.5 kva,@ 1500 rpm, @ 415v, 87a, 50 hz and 0.8 power factor lagging rating. class of insulation - h mounted on a channel iron base.the layout of genset should meet the following conditions demanded for assembly in the x clas s locomotive without fail as per the general layout of generator of high speed diesel oil firing system for x class loco sketch (attached); while facing the x class steam locomotive from rear, (i) the exhaust line should be directed towards the viewer and radiator should be on the left-hand side of the viewer.(ii) s tandard acoustic enclosure & control panel is not required. engine make: tata/cummins/mahindra ; alternator make:stamford/siemens/crompton/leroy some r [ warranty period: 30 months after the date of delivery ]