Latest ear guard Tenders | Government ear guard Tenders

CTN :45465678

19 Jun, 2026 NA

Kanchipuram - Tamil Nadu

Tender For supply, installation and testing of electronic equipments - supply -ece lab equipments, single output regulated dcvariable power supply- input voltage: 230v / 50hz ac. output voltage: (0 30)v dc. output current: (0 2)a dc. protection circuit: over voltage, over current, and short-circuit protection. high efficiency: greater than 85%. low ripple and noise: less than 50 mv. digital display., dual output regulated dc variable power supply- input voltage: 230v/50 hz ac. output voltage: (0 30)v dc. output current: (0 2)a dc. protection circuit: over voltage, over current, and short-circuit protection. high efficiency: greater than 85%. low ripple and noise: less than 50 mv. digital display., function generator - frequency range: 0.1 hz to 5 mhz. display: 4 to 6 digit led display. output waveforms: sine, triangle, square, pulse, ramp. amplitude: 0 20 vpp. rise time: 100 ns. distortion: 1% within specified frequency range. power supply: 230 v ac 10%, 50 60 hz. output amplifier protection: short-circuit and 15 v, digital ic trainer kit with breadboard - +5 v dc, 1 a regulated power supply. 12 v dc / 15 v dc, 200 ma regulated power supply. solderless breadboard with minimum 840 tie- points,power distribution buses. zif (zero insertion force) ic sockets to accommodate 8 or 16 pin ics. logic input and output leds for output monitoring. 16 buffered led outputs. 16 debounced switch inputs. variable clock generator: 0.5 hz to 50 hz. single pulse output: 100 ms (buffered, positive and negative outputs). one seven-segment display with 4 bcd inputs. built-in logic switches. manual clock: debounced push-button (one pulseper press)., dc voltmeter(digital) - dc digital voltmeter - 3 digit led/lcd display, measurement range: 0 20 v dc,accuracy: class 0.5( 0.5 % full-scale), dc ammeter - dc ammeter digital - 3 digit led/lcd display, measurement range: 0 5 a dc,accuracy: class 0.5 ( 0.5 % full-scale), lvdttrainer kit - ac mains power supply: 230 v 10%, 50 hz. fixed regulated dc power supply: +5 v, 12 v / 500 ma. transducer: lvdt. lvdt displacement: 20 mm (40 mm total). displacement scale: linear 20 mm. displacement display: red color 3 digit led display. excitation frequency: 4 khz. excitation voltage: ac variable excitation voltage up to 5 v., strain gauge trainer kit - ac mains power supply: 230 v 10%, 50 hz metal foil strain gauge mounted on beam/cantilever. strain measurement under applied load. wheatstone bridge arrangement. instrumentation amplifiers with 3 digit display for strain / output voltage. table-top trainer with labelled panel. test points for signal measurement. built-in dc power supplies and wooden closed cabinet. supplied with patch cords and user manual., ask modulation and demodulation kit - message signal1:8-bit variable data,amplitude 5v. message signal 2:debounced data, amplitude low (0) and high (5 v). message signal 3:fixed data 25 khz, 12.5 khz, 6.25 khz, 3.12 khz,amplitude 5 v. carrier signal: sine wave, frequency 200 khz, amplitude 5 v. supply voltage (board): +12 v, +5 v dc. input voltage: 230 v ac, 50 hz. interface connectors: 2 mm banana socket., fpga trainer kit - must use industry-standard mid-range fpga device usb-jtag programmable, compatible with vivado ise (webpack). power supply: 5 v dc through usb or external adapter. on-board peripherals: leds, switches, push buttons, 7-segment display,clock source, gpio / pmod expansion ports, uart, vga / hdmi, usb- uart bridge, usb cable. user manual., measurement scale: a vertical steel meter scale, usually with (1mm) graduations, for precise deflection measurement., accessories: includes a set of slotted weights (e.g., (6times 50g) or similar sets) for incremental loading.

CTN :45465664

18 Jun, 2026 3.00 Lacs

Thanjavur - Tamil Nadu

Tender For supply of upgradation of laboratory equipment- tansche - upgradation of laboratory equipment, digital ic trainer kit: equipped with 16 high -visibility leds for monitoring experimental outputs and logic status indication. dedicated driver circuitry provided for reliable operation and protection of all 16 leds during experimentation. all 16 driver input lines are terminated through banana connectors for flexible and easy external interfacing. includes 16 spdt toggle switches for generating manual logic input conditions in digital electronics experiments. additional 16 leds provided to display the real-time status of individual switch operations. one terminal of each spdt switch is externally accessible through banana sockets for convenient circuit connections. built -in variable clock generator enables pulse generation for sequential and timing-based digital experiments. frequency adjustment provided through potentiometer and rotary switch combination for precise clock selection. clock output is terminated through banana connectors for quick integration with external circuits and trainer modules. features dual 7 -segment led display with 7447 decoder/driver ic for bcd to display conversion experiments. inputs of the 7447 drivers are terminated at banana connectors for direct digital logic inter-facing. includes solder less breadboard for rapid circuit prototyping and reusable experimental setup development., pam,pwm,ppm trainer kit:pam- ppm- pwm modulation and demodulation techniques, using natural and flat-top sampling. natural sample, sample and hold and flat-top outputs. selectable 2 different sampling pulse frequencies on board. on board sine wave generators. voice communication using dynamic microphone and speaker. -on board filters and amplifier. functional blocks indicated on board mimics. input- output and test points provided on board. built in dc power supply -fully documented operating manual -switch faults .pulse modulation techniques: (1) pulse amplitude modulation (2) pulse width modulation (3) pulse position modulation crystal frequency : 6.14mhz .sampling frequency : 16 khz, 32 khz .sine wave generator : 1 khz & 500 hz, amplitude (0-5) v. tolerance +5% . low pass filter : 4th order bw filter. cut off frequency 3.4 khz. voice communication : voice link using dynamic mic & speaker . ac amplifier : with adjustable gain control interconnections :uninsulated sockets. power:230v,50hz . accessories : manual , set of patch chords, microphone & speaker., electronics work bench:digital storage oscilloscope (dso) - 50mhz - 1no . 3mhz function generator (fg) 1no.dual output variable power supply (rps) (0-30v/2a) - 1no. fixed output power supply ( 12v, 500ma) ( 5v, 500ma) - 1no . digital multimeter 3.5 digit [hand held type] - 2nos 3.5 digit lcr meter [hand held type] - 1no. soldering & desoldering device - 1no., mosfet drain current and transfer characteristics trainer kit:circuit diagram in the front panel.biasing components provided test points are terminated at banana connector.input: 230v ac.housed in a closed cabinet.detailed experimental manual.2mm patch chords provided for inter connecting., frequency response of cs amplifier trainer kit:circuit diagram in the front panel.biasing components provided test points are terminated at banana connector.input: 230v ac.housed in a closed cabinet.detailed experimental manual. 2mm patch chords provided for inter connecting., frequency response of cascode amplifier trainer kit: circuit diagram in the front panel. biasing components provided test points are terminated at banana connector.input: 230v ac. housed in a closed cabinet. detailed experimental manual. 2mm patch chords provided for inter connecting., class a transformer coupled power amplifier trainer kit: circuit diagram in the front panel.biasing components provided test points are terminated at banana connector. input: 230v ac.housed in a closed cabinet.detailed experimental manual.2mm patch chords prov

CTN :45346460

04 Jun, 2026 NA

Vellore - Tamil Nadu

Tender For supply of eee lab items dept use - three phase transformer rating: 3 kva input voltage: 415 v ac, 3-phase output voltage: 230 v ac, 3-phase frequency: 50 hz winding material: copper wound insulation class: class b or higher duty: continuous duty suitable for laboratory usebench/floor mounted suitable for laboratory operation all winding terminals shall be brought out to insulated terminals and enclosed within a protective outer cover for safe laboratory operation , dc stepper motor driver kit with stepper motorinput supply : 230 v ac, 50 hz stepper motor : permanent magnet / hybrid type with suitable driver circuits. motor operating voltage : 12 24 v dc variable speed control forward and reverse direction control full step and half step operation manual / automatic pulse generation facility built-in regulated dc power supply led indication for phase sequence and status test points provided for waveform observation start / stop control switches to be provided overload and short circuit protection to be provided mounted on compact powder coated cabinet with printed circuit diagram proper insulated terminals and interconnecting leads to be provided patch chords for interconnection. , dc servo motor driver kit with servo motorinput voltage 12 - 24v, dc, 5a, 10-60rpminput supply : 230 v ac, 50 hz servo motor type : dc servo motor with feedback arrangement motor operating voltage : 12 24 v dc controller type : microcontroller based servo drive controller speed control : variable speed control to be provided position control : angular position control facility to be provided direction control : forward and reverse operation feedback device : encoder / potentiometer based feedback system built-in regulated dc power supply led indications for power and status test points to be provided for signal observation and analysis start / stop control switches provided overload and short circuit protection to be provided mounted on powder coated cabinet with printed circuit diagram proper insulated terminals and interconnecting leads to be provided , three phase resistive loadrating: 5.25 kw supply: 415 v ac, 3-phase, 50 hz total number of load steps: 6 main switch to be provided approximate dimensions: 18 18 22 inches (l b h) comprising special cement-insulated electrical load resistors mounted on powder-coated ms panel/enclosure individual on/off rotary switches for load selection mounted on rubber wheels/casters for portability suitable for laboratory load testing applications proper insulation, ventilation, and earthing arrangement to be provided , single phase induction motor with load arrangement 5hp ,230v, 1400 rpmsingle phase, 2hp,230v,1440 rpm with dol starter loading arrangement and electrical workbench mechanical rope with aluminum brake drum loading with adjustable wheels - 2 no s 0-50 kg spring balance - 2 no s electrical panel board with workbench -cupboard with door. panel board- with proper internal wiring& terminals insulated necessary symbols of motor and starter, fuse, supply indicators to be provided and printed on panel board -digital rpm indicator with proximity sensor to be provided -required number of digital ammeter , three phase synchronous motor with electrical workbench 3-phase synchronous motor with electrical workbench and loading arrangement , rating: 5 hp voltage: 440 v ac, 50 hz speed: 1500 rpm (synchronous speed), induction start using damper winding, suitable starter panel, dc supply (0 220 v dc adjustable (variable dc control) within the panel),and necessary workbench electrical panel board with workbench -cupboard with door. panel board- with proper internal wiring& terminals insulated necessary symbols of motor , starter, exciter, fuse, supply indicators to be provided and printed on panel board -digital rpm indicator with proximity sensor to be provided -required number of digital ammeters and voltmeters for motor to be provided on panel board. , synchronizing panelthree phase, 415v, 15a synchronizi

CTN :45146771

25 May, 2026 NA

Thrissur - Kerala

Tender For purchase of equipment for electronics and communication department - 100mhz/2 channel digital storage oscilloscope(dso), sample rate 1gsa/s, record length - 14mpts, wavwform capture rate-400,000 wfm/s, serial decode/trigger functions, advanced math operations-fft, d/dt, integrate, square root 38 parameters automatic measurements, 7 inch tft lcd display, newest generation of spo(super phosphor oscilloscope) technology support usb host, usb device (usb tmc), lan (vxi-11), gpib (optional), pass/fail, trigger out, impts, 500uv/div sensitivity, 2 channel 3mhz function generator with modulation, 3 mhz function generator with sine, square, triangle, ramp, pulse, ttl & dc, frequency range 0.3hz to 3mhz, amplitude and frequency display, internal and external modulation by any signal by am,fm,pwm,pam,fsk,ask, auto ranging 40mhz frequency counter, auxiliary generator with frequency 20hz-20khz, square wave rise time- better than 50ns, dual channel power supply 0-30v continuous variable regulated 30v-2a, 0 to +/- 15v-1a, 5v-5a multiple power supply, dc 0 to 30v/2a, 0 to +/- 15v/1a tracking, 4.5 to 5.5 / 5a digital display for voltage and current protection against overload and short circuit, adjustable current limiter, constant current & constant voltage, multimeter - digiital - dc voltage 1000v, ac voltage 1000v, dc accuracy +/- 1% +3 digit, current dc 10amp, ac 10 amp, dc accuracy +/- 1.5%+3 digit, ac accuracy +/- 1.5% +3 digit, resistance 40 mohm - resistance accuracy +/- 1.5% +3 digit, capacitance :1000uf; capacitance accuracy +/- 5% + 5 digit. cat iii 600v saftey rating, bigger display with bright white backlight. over voltage indicator, frequency and temperature measurements, voltage, resistance, continuity, capacitance measurements, input terminal for ac and dc current measurements upto 10a, diode test, data hold, min/max ammeter and voltmater included.

Central Government/Public Sector

CTN :45264914

30 May, 2026 NA

Bhopal - Madhya Pradesh

Tender For supply of 2.2 kw ac crane drive , 5.5 kw ac crane drive , 11.0 kw ac crane drive , 22.0 kw ac crane drive , 37.0 kw ac crane drive , 55.0 kw ac crane drive , 75.0 kw ac crane drive 3 phase, digital ac crane drive 2.2 kw, ac drive should be suitable for heavy duty operation of 2.2 kw. offered ac drive should be suitable for crane-hoist operation. if, separate software required for crane application, it must be clubbed with supply of material. ac input voltage: 380 to 480v ac 10%, 3 phase, 3 wire, 50 hz; mode of control: bi-directional fully controlled 3-phase ac; speed regulation: 1% of base speed; braking: suitable dynamic braking resistance and chopper unit (external or in-built); acceleration time: 0.1 to 1000s or better; deacceleration time: 0.1 to 1000s or better; overload: 150%-1min, 200%-3.0s; ambient temperature: 0 to 50 c (derating shall not occur below 50 c. in the event that derating occurs below 50 c, the supplier shall provide a higher-rated drive to match the requirement); rated current at 50 c: min. current should be 5.5 amps at 50 c; high starting torque at low speed: 200% starting torque at 0.3 hz; two analog inputs: two nos. analog inputs having signal voltages of 0 to 10 vdc or 4 to 20 ma (configurable); two analog outputs: two nos. analog outputs having signal voltages of 0 to +/-10 vdc or 4 to 20 ma (configurable); six digital inputs: pnp/npn; one relay output: with short-circuit and overload protection; two digital outputs: with short- circuit and overload protection; brake release signals: outputs braking signals based on inverter operating conditions to prevent cargo bed rollback and overrunning; load adaptive control: when the actual load level is lower than the configured load level, the system can be operated at a ratio-multiplied speed (in terms of the configured frequency), resulting in significantly better efficiency; load ) /bid number : gem/2026/b/7563714 * /dated: 20-05-2026 & & / bid document 1 / 29 frequency), resulting in significantly better efficiency; load limiter: maintains the safety and rescuability of suspended loads by stopping when excessive torque is detected and by allowing operation only in the direction opposite to that in which the excessive load was detected; cooling capacity degradation alarm: detects and displays cooling capacity drop due to cooling fin clogging caused by dust and cooling fan airflow reduction; igbt life expectancy forecasting: estimates the power cycle life expectancy of the main circuit s igbt semiconductor device temperature due to frequent acceleration and deceleration stoppages, and displays the estimate before the design life is reached; protection: it must have all standard protections like stall protection, instantaneous power failure, single phasing, over voltage, under voltage, over current, inverter overload, thermal overload etc; display console: it must have alpha numeric display console for programming of drive, fault display and operating condition; dynamic qr code: it must have dynamic qr code for trouble shooting; tuning facility: it must have auto tuning facility. this must enable perfect matching of motor coupled to load with regards to optimum acceleration time, deceleration time, speed regulation etc; drive programming software: suitable drive programming software along with necessary connecting cable and adapter for connection with laptop and drive should be provided to get online with the offered drive (laptop not in scope); automatic voltage regulation: it must have automatic voltage regulation function to maintain high starting torque even at reduced voltage; regenerative option: it must be capable of regenerative operation; communication protocol: modbus (rtu/serial) or ethernet (tcp/ip); make of drives: fuji- electric/yasakawa/schneider/abb only; suitable dynamic breaking resistance unit of 60% wattage rating of drive, however the value of resistance is to be decided by manufacturer as per their technical manual for crane-ho

Central Government/Public Sector

CTN :45184247

18 Jun, 2026 NA

Erode - Tamil Nadu

Tender For supply of 5 kv diagnostic insulation tester with 3x3 test leads for earth, guard & line connection 1.5 meters ac mains chord, main protected fuse, calibration certificate from oem/nabl/govt. approved lab., three programmable timers, modes for conducting ir, leakage current, pi, dar, dd, sv & bdv test, ce, cat-iv 600v, ip 65 compliance with latest iec/is standards, 1000v test result storage, optical isolated rs 232 port & usb port, ac/dc measurement test voltage 250-5000v, insulation resistance upto -10 tera ohm, model no. 5kpi of m/s. motwane make or its equivalent in acceptable makes: kusam meco/fluke/megger/metravi/meco only. [ warranty period: 30 months after the date of delivery ] ]

Central Government/Public Sector

CTN :44956069

20 May, 2026 NA

Bhopal - Madhya Pradesh

Tender For enhancing and strengthening of earthing arrangement & provision of surge protection device for signalling equipment's at station/lc/ibh/relay hut and telecom installation as per rdso tan no. sts/e/tan/3006, ver 3.1 dtd 30.06.2025 or latest amendment& balance work for enhancing the reliability of data logger, digital axle counters, electronic interlocking, power supplies etc. across bhopal division.

Central Government And Public Sector

CTN :44807756

22 Apr, 2026 NA

Lumding - Assam

Tender For at hji-design, supply, installation, testing and commissioning of a passenger lift of 14 passengers (952 kg) capacity for g+1 floors (approx. 10 m travel), machine : gearless with permanent magnet motor located in the shaft at the top as per rdso specification no:rdso/2013/em/spec/0016 (rev '2'')-2025, complete with all associated electrical, mechanical and civil interface works and accessories, including 1.0 m/s vvvf drive, automatic centre-opening doors (minimum clear opening 700 - 2000 mm), car height 2400mm, finished floor height 2600 mm, pit depth 1600 mm and headroom 5000 mm; equipped with traction machine suitable for 952 kg load with 8-19s fibre-core self-lubricating ropes, guide rails, buffers and complete hoisting/suspension system; microprocessor-based monoblock control panel with closed-loop control, safety torque-off, automatic rescue device (ard), fireman operation, overload protection, emergency alarm/light and all mandatory safety features as per rdso spec; stainless-steel car with led lighting, ventilation fan, handrail, voice announcement system, vandal-resistant cop & lop with digital indicators; including all cabling, earthing, testing, commissioning, statutory clearances and handing over, along with 2 years comprehensive warranty covering all parts, labour and service. cost includes free maintenance of two years during warranty of lift as per rdso spec no.rdso/2013/em/spec/0016 (rev'2') - 2025 make-johnson/otis/schindler/omega elevators /techno industries or equivalent. [ warranty period: 24 months after the date of delivery ]

CTN :44544179

15 Apr, 2026 NA

Guna - Madhya Pradesh

Tender For corrigendum : ambulance equipment purchase - cardiac ambulance equipments, bi-phasic defibrillator with monitor, transport ventilator, multipara monitor, infusion pump, portable suction machine, manual suction pump, self inflating resuscitation bag, laryngoscope set, portable oxygen cylinder set, d-type oxygen cylinder set, nebulizer, pulse oximeter, digital bp monitor, glucometer, digital thermometer, stethoscope litman, ambulance cot (automatic stretcher), scoop stretcher, spine board with head immobilizer, wheelchair, vacuum mattress, fracture splint set, cervical collar set, extrication device (ked), traction splint, transfer sheet, kidney tray, sharp container, needle destroyer, diagnostic light, head lamp, ambulance first aid kit, airway kit, intubation kit 1 set, oxygen mask set, nebulization mask, suction catheter set, ecg electrodes, infusion set, iv cannula set, emergency drug kit, cold box for medicines, waste disposal bin, biohazard bag set, hand sanitizer dispenser, examination gloves box, face mask set, eye protection goggles, safety helmet, safety gloves, reflective safety jacket, seat belt cutter, glass breaker tool, fire extinguisher, torch light, portable flood light, tool kit set, spill kit, patient blanket, disposable bedsheet, ambulance seat belt, medical waste container, ambulance warning triangle, portable fan, ambulance cleaning kit

Central Government/Public Sector

CTN :44229284

08 Apr, 2026 NA

Chamoli - Uttarakhand

Tender For corrigendum : tender for supply of supply- plcc - coupling device phase to phase (2lmu with 1bt) , supply- plcc - hf cable 75ohms unbalanced , supply- plcc - for local end-carrier equipment analog type (for speech+data & speech+protection) in 400kv lines , supply- plcc - analog protection coupler for plcc , supply- plcc - for local end- digital protection coupler , supply- plcc - epax (24/8) with 24 nos telephones , cable etc , supply- plcc - express telephone instrument alongwith associated accessories , wiring etc , supply- plcc - 5 pair telephone cables , armoured , 0.5 sqmm annealed copper conductor and petroleum jelly filled with polyethene outer jackets , supply- plcc - 2 pair telephone cable (tinned copper) , spares- plcc - power amplifier unit , spares- plcc - remaining modules/ sub unit , services- plcc - system engineering including computer study , freq. planning and snr calculations , services- plcc - supervision of pre-commissioning (panel wise) , services- plcc - supervision of testing and commissioning (link wise)

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