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State Government

CTN :39984717

18 Apr, 2025 NA

Calcutta - West Bengal

Tender For supply of following items for setting up measurement and instrumentation lab for 4 year b.tech in electrical engineering curriculum and application for university of calcutta. - experimental set-up for calibration of a wattmeter using dc potentiometer with following features/items:regulated power supply 2 volts, 100 ma to operate the potentiometer.calibrated electronic standard cell voltage 1.0186 volts.regulated power supply 0-5 volts/0.5 amps with milliammeter 0- 500ma for current coil of wattmeter.regulated high voltage power supply 0-250 dc volts with voltmeter 0-250 volts for pressure coil of wattmeter.a panel mounting wattmeter 0-125 watt is required to perform the experimentgalvanometer for null balance.a volt ratio box for measurement of higher voltage.complete circuit diagram with wattmeter connections to be provided on the front panel of the instrument.with standard accessories, experimental set-up for low resistance measurement using kelvin s double bridge with following features:range: 0.2 micro ohm to 11 ohms, with an accuracy of 0.05 %required accessories:spot reflecting galvanometer. dc source 10 a with one analog current meter. attachment of 1 meter length.brass clamp with terminals for zero setting. with standard accessories, experimental set up for unknown capacitance measurement using de-sauty s bridge with following specifications:source: sine wave signal of 1khz. the amplitude of ac switch indicating lamp is provided on the bakelite board. two sockets are to be provided for the output of ac signals.detector: for detecting small ac signals in the output, null detector is required as in-built with digital display.circuit diagram:the circuit layout on the board is to be provided out to facilitate convenient working. 4 or 5 mm socket required for making connection. features:r2 --- three decade resistance dials having value 10 1000, 10 100 and 10 10 ohmsr1 ---- single decade resistance dial having value 10 100 ohmsc1 ---- unknown capacitor.c2 ---- two fixed standard capacitors having value 0.01mfd 0.1mfd (loss free)with standard accessories, experimental set-up for calibration of a 1-phase watt-hour meter with following scopes: to adjust & calibrate a single-phase energy meter by direct loading method to adjust & calibrate a single-phase energy meter by comparing with a sub-standard meterspecifications: static energy meter single phase: under test (local) duly mounted, wired and terminated static energy meter single phase: sub-standard meter (isi mark) duly mounted, wired and terminated voltmeter: moving iron ac portable of class 1.0 accuracy and range 0 - 300 v ac ammeter: moving iron ac portable of class 1.0 accuracy and range 0 - 10 a ac wattmeter: dynamometer type ac single phase, multi-range with current coil 5 / 10 amp and potential coil 75 / 150 / 300 v ac variac: variable voltage transformer (portable table / floor mounting type with enclosure) input: 230v ac and output: 0 270v / 8 amp ac variable load: made up of 3 load resistors of 70 ohms / 700 w each duly mounted and connected / terminated to form different loads (35 to 210 ohms) as per external connections digital stop clock: portable with start / stop & reset operation set of necessary 4 mm spring loaded patch cords for interconnections detailed instruction manual supply to be connected: 230v, 1phase, 50 hz, ac mains, experimental set-up for calibration of a 3-phase watt hour meter with following specifications: to adjust & calibrate a three-phase energy meter by direct loading method to adjust & calibrate a three-phase energy meter by comparing with a sub-standard meterspecifications:static energy meter three phase: under test (local) duly mounted, wired and terminatedstatic energy meter three phase: sub-standard meter (isi mark) duly mounted, wired and terminatedvoltmeter: moving iron ac portable of class 1.0 accuracy and range 0 - 300 v acammeter: moving iron ac portable of class 1.0 accuracy and range 0 - 10 a acwattmeter:

CTN :39862405

29 Apr, 2025 5.60 Lacs

Kattappana - Kerala

Tender For purchase of lab instruments for physics core laboratory for the year 2025 under idukki package - digital function generator {0.2 hz to 2 mhz, sine, square, triangular wave, signal amplitude of 20vp-p output }, cro digital- 100 mhz dual channel, arduino set, daniel cell, equivalent, electronic digital vernier calipers, inch and millimeter conversion,lcd screen displays 0-6" caliper measuring tool, automatic shutdown, laboratory thermometer (lc:0.5 degree celsius , should measure upto 150 degree celsius), double slit with various widths marked on, prism equilateral- flint glass, with one face grounded (2"), prism equilateral- crown glass, with one face grounded (2"), voltage source (variable) [0-30 v, 2 outputs, digital display], digital multimeter with voltage ( ac- at least 200 mv to 500 v, dc), current ( ac and dc from ma range) , resistance, frequency, transistor gain (hfe) measurements, laser source- diode 650 nm, 5mw fixed on stand with power supply, solar cell characteristic apparatus, single slit, with various slits marked on the instrument, diffraction grating with 100 lpi/200 lpi/ 500 lpi or their combination with marking on the instrument (different lpi preferred), micrometer screw gauge 0-25 mm, 0.01 mm lc, screw gauge digital micrometer 0-25 mm, 0.01 mm lc, stainless steel digital vernier calipers, 6 inch, stop watch- electronic digital, spectrometer arrangement, lc 1 , travelling microscope, both vertical and horizontal movement lc 0.01 mm, quartz prism- equilateral, mercury lamp with pins ( not screw type), common weighing balance- digital , to weigh upto 10 kg, lc 1gm, digital light intensity meter (range 0 to 200000), katers pendulum, with holder, narrow angle (small angled prism angular measurement 5 x 87.5 x 87.5 ie 5 degree size 32 x32 mm) crown glass, travelling microscope, (bridge) horizontal movement lc 0.01 mm , for newtons ring and airwedge experiments, digital ic tester, analog stop clock (lc:0.5s), diffraction grating with 15000 lpi, digital oscilloscope dual channel input signal generator 100 mhz 1gsa/s sampling rate 7" tft display 240 kb storage, oscilloscope - 2.8" tft handheld digital oscilloscope kit portable automotive oscilloscope, 2.5ms/s high sampling rate, 200khz bandwidth, trigger function auto/nomal/single, helium neon laser 2mw, with power supply, half wave, full wave & bridge rectifier trainer kit, op amp trainer kit -to study op-amp inverting, non-inverting amplifier circuit, to study op-amp summer & subtractor, to study op-amp comparator circuit, to study op-amp voltage follower current follower, to study op-amp differentiator and integrator circuit.to study op-amp null detector, offset current & voltage circuit.to study op-amp clipping amplifier.to study op-amp sample & hold circuit.to study op-amp schimitt trigger circuit., hall effect apparatus complete set, 4 probe experiment apparatus for resistivity and bandgap of semiconductor, bh curve apparatus to study the retenvitya nd coercivity of a ferromagnetic material, apparatus to measureelectrical conductivity of metals and estimation of fermi energy., digital lab thermometer. resolution : 0.1 degree celsius, at least measure upto 200 degree celsius, horse shoe magnet for sonometer experiment (approx 6 inch), stainless steel ruler to measure upto 0.5 mm, digital lcr meter (range: 0.1 h to 20h, 0.1pf to 2000 f, 0.1ohm to 20mohm), special wire stripper for electrician decrustation pliers multi-functional wire stripper and cutter, wire cutter tool, wire cutter stripper, wire cutter plier, 25 pieces spanner set 6 mm to 32 mm

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