Latest isdn exchange Tenders | Government isdn exchange Tenders

CTN :45416327

16 Jun, 2026 11.00 Lacs

Payyanur - Kerala

Tender For supply of multi process control trainer setup for instrumentation engineering lab under mhrd scheme - purchase of multiprocess control trainer setup for instrumentation engineering lab under mhrd scheme - multiprocess control trainer set up, multiprocess control trainer set up - specifications:- setup must contain flow, pressure, level, temperature loops also derived loops like cascade and feedforward loops. temperature loop must be independent. setups consist of a circulating closed loop water plant or circulating water system including control valve, tanks, independent pumps and necessary valves including bypass valves and rotameters. using this we can be able to do flow control loop with pid,level control loop with pid,and pressure control pid, as independent experiments.the setup must include the following:1.one linear characteristics diaphragm operated control valve with 15mm stroke 1/2-inch size, type: high-capacity globe seat leakage class (as per ansi/fci 70.2).2.measuring tank with volumetric measurement scale and 1000mm level, in of 25 ltr capacity. sump tank min of 40 ltr capacity. all tanks made of ss304, with sight glass, and finished with mat steel finish.3.2 no s smart dp transmitter for flow and level measurement with hart protocol, display and keys integrated for calibration,0-1000mmh2o measurement range,0.01% accuracy, international iso certified ce approved make,24v supply,4-20ma output, loop powered.4,1nos of magnetic flowmeter with display and keys integrated for calibration,0-2000lph measurement range, read out: 0 - 100%, 4-20ma lcd display,0.05% accuracy, international iso certified ce approved make,24v supply,4-20ma output to measure flow as a independent loop.5,. smart pressure transmitter and temperature transmitters with hart protocol, display and keys integrated for calibration, pressure transmitter 0-10bar measurement range, read out: 0 - 100%, 4-20ma lcd display,0.05% accuracy, temperature transmitter 0-250 rtd type international iso certified ce approved make,24v supply,4-20ma output, loop powered.6, pressure tank of 24 liters with necessary valves for pressure loop.7.1nos orifice plate (ss304) and assembly grade with flange 1/2-inch size for flow measurement.8.2 nos pumps 0.5hp, ss centrifugal pump, minimum 1-inch pipeline of ss or high-pressure withstanding plastic with plastic welding.9. rotameters 2nos 1 inch size flow: 200-2000 l/h,ss thread, clear acrylic type.10, plc control station with 4 analogue inputs and one analogue output with necessary digital inputs and outputs to operate all loops directly from panel side.plc must have ethernet connectivity with supported protocols profinet and modbus tcpip.11.required all pneumatic components to full fill the process loops such as fr,needle valves etc.12,i to p converter 4-20ma to 3-15psi with 1/4" process connection with proper copper copper tubing.13, loop including flow pid control, level pid control, pressure pid control, cascade control (level flow), ratio control (flow flow).14.all loops can be operated using a scada system and independent pushbutton control includes trend of all analogue signals and pid tuning. scada direct profinet connectivity to plc and computer with intel i5 processor, 8gb ddr3 ram,1tb sata hdd,licenced windows 11 professional.15, required a standalone software application that must be installed on pc in which it can used to control and monitor all the functions used in scada. the application must contain process parameter trend graph plot for to study about process loops.16.the whole system setup must be in ms powder coated standalone mobile table with lockable castor wheels. all the components used be industrial. copper tubing for air connection, pressure gauges 4inches 3nos, electrical wiring connection to be flexible for to connect field devices. panel with switches, indicator, test points with banana connectors as required, multistrand wire with proper insulated lugs, ferruling & neat wire dressing & clam

CTN :45404156

16 Jun, 2026 NA

Chennai - Tamil Nadu

Tender For supply of lab equipment for department of instrumentation and control engineering - i/p and p/i converter, pressure measurement using bourdon tube and lvdt setup, level measurement using float and sight glass indicator, temperature transmitter trainer kit, single phase transformer with load, saybolt viscometer, on off control of temperature process, flow measurement using electromagnetic flowmeter

CTN :45374998

09 Jun, 2026 NA

Nilgiris - Tamil Nadu

Tender For lab equipments - temperature transmitter trainer kit, closed loop control of temperature process using thermistor, proportional control of temperature process , on off control of temperature process

CTN :45346428

15 Jun, 2026 NA

Madurai - Tamil Nadu

Tender For purchase of renewable energy practical equipments - equipments for renewable energy practices:, rc phase shift oscillator oscillator type: rc phase shift oscillator using transistor / op-amp configuration. input supply: 230 v / 50 hz ac with regulated internal dc supply. output frequency range: 100 hz 10 khz adjustable. output: sinusoidal waveform with adjustable amplitude up to 10 vpp. rc network: three-stage rc phase shift network with frequency control arrangement. cro test points: dedicated cro terminals at amplifier output, each rc stage, and final output for waveform and phase-shift observation. protection: over-voltage and short-circuit protection provided. indicators and controls: power on led indication with frequency and gain adjustment controls. accessories: patch cords, circuit diagram, strain guage characteristics kitac mains power supply: 230 v 10%, 50 hz metal foil strain gauge mounted on beam/cantilever. strain measurement under applied load. wheatstone bridge arrangement. signal conditioning and amplification circuit. instrumentation amplifiers with 3 digit display for strain / output voltage. zero and gain adjustment controls. provision for applying calibrated loads. table-top trainer with labelled panel. test points for signal measurement. built-in dc power supplies and wooden closed cabinet. supplied with patch cords, load cell characteristics kit input supply: 230 v / 50 hz ac with regulated internal dc supply. sensor: strain gauge load cell with suitable mounting arrangement. load range: 0 10 kg. display: digital display for load/output indication. cro / test points: test points provided for observing bridge output, amplifier output, and signal conditioning stages. controls: zero adjustment and calibration controls provided. protection: overload and short-circuit protection provided. accessories: loading arrangement, connecting leads., measurement of tank level using rotometer input supply: 230 v / 50 hz ac with regulated internal dc supply. tank arrangement: transparent tank with 30 liters capacity with suitable supporting stand. rotameter range: 0 4000 l/hr calibrated rotameter. flow system: pump, control valves, and piping arrangement provided for continuous flow operation. measurement facility: provision for flow-based tank level measurement and observation. display / observation: calibrated level indication with flow monitoring arrangement. test points: output terminals provided for monitoring sensor/output signals. accessories: connecting tubes., measurement of tank level using displacer type level transmitter input supply: 230 v / 50 hz ac with regulated internal dc supply unit. measurement principle: buoyancy (archimedes principle) using displacer element. tank arrangement: transparent experimental tank with 30 liters capacity and suitable mounting stand. level range: suitable laboratory-scale level measurement (0 100% tank height). sensor system: displacer type level transmitter with continuous level output signal. display unit: digital indicator for level display in percentage / engineering units. output signals: standard analog output (4 20) ma / (0 10) v provided for monitoring. test points: provided for transmitter output, signal conditioning, and display unit verification. controls: zero and span calibration adjustment provided for setting level reference. protection: over-voltage and short-circuit protection for electronic modules. accessories: connecting cables, piping arrangement, loading medium (water), measurement of temperature using pt100 input supply: 230 v / 50 hz ac with regulated internal dc power supply unit. sensor: pt100 resistance temperature detector (rtd) probe with stainless steel sheath. measurement principle: resistance variation of platinum element with temperature. temperature range: 0 c to 150 c (or suitable laboratory range). display unit: digital temperature indicator with direct c display. accuracy: high accuracy with linearized rtd signal conditioning circuit. sign

CTN :45346446

11 Jun, 2026 NA

Tuticorin - Tamil Nadu

Tender For purchase of lab equipments for res dept - purchase of lab equipments for res dept, rc phase shift oscillator (iemcode:o001)specifications: oscillator type: rc phase shift oscillator using transistor / op-amp configuration. input supply: 230 v / 50 hz ac with regulated internal dc supply. output frequency range: 100 hz 10 khz adjustable. output: sinusoidal waveform with adjustable amplitude up to 10 vpp. rc network: three-stage rc phase shift network with frequency control arrangement. cro test points: dedicated cro terminals at amplifier output, each rc stage, and final output for waveform and phase-shift observation. protection: over-voltage and short-circuit protection provided. indicators and controls: power on led indication with frequency and gain adjustment controls. accessories: patch cords, circuit diagram., strain guage characteristi cs kit(iemcode:o002)specifications: 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. signal conditioning and amplification circuit. instrumentation amplifiers with 3 digit display for strain / output voltage. zero and gain adjustment controls. provision for applying calibrated loads. no rs.10,000 2 table-top trainer with labelled panel. test points for signal measurement. built-in dc power supplies and wooden closed cabinet. supplied with patch cords, load cell characteristi cs kit(item code: o003)specifications:input supply: 230 v / 50 hz ac with regulated internal dc supply. sensor: strain gauge load cell with suitable mounting arrangement. load range: 0 10 kg. display: digital display for load/output indication. cro / test points: test points provided for observing bridge output, amplifier output, and signal conditioning stages. controls: zero adjustment and calibration controls provided. protection: overload and short-circuit protection provided. accessories: loading arrangement, connecting leads., measurement of tank level using rotometer(item code: o004)specifications: input supply: 230 v / 50 hz ac withregulated internal dc supply. tank arrangement: transparent tank with 30 liters capacity with suitable supporting stand. rotameter range: 0 4000 l/hr calibrated rotameter. flow system: pump, control valves, and piping arrangement provided for continuous flow operation measurement facility: provision for flow-based tank level measurement and observation. display / observation: calibrated level indication with flow monitoring arrangement. test points: output terminals provided for monitoring sensor/output signals. accessories: connecting tubes., measurement of tank level using displacer type level transmitter(item code: o005)specifications: input supply: 230 v / 50 hz acwith regulated internal dcsupply unit. measurement principle:buoyancy(archimedesprinciple) using displacerelement tank arrangement: transparent experimental tank with 30 liters capacity and suitable mounting stand. level range: suitable laboratory-scale level measurement (0 100% tank height). sensor system: displacer type level transmitter with continuous level output signal. display unit: digital indicator for level display in percentage / engineering units. output signals: standard analog output (4 20) ma / (0 10) v provided for monitoring. test points: provided for transmitter output, signal conditioning, and display unit verification. controls: zero and span calibration adjustment provided for setting level reference. protection: over-voltage and short-circuit protection for electronic modules. accessories: connecting cables, piping arrangement, loading medium (water), measurement oftemperature using pt100(item code: o006a)specifications: input supply: 230 v / 50 hz ac with regulated internal dc power supply unit. sensor: pt100 resistance temperature detector (rtd) probe with stainless steel sheath measurement principle: resistance variation of platinum element with temperature. temperature range: 0 c to

CTN :45351358

04 Jun, 2026 NA

Pudukkottai - Tamil Nadu

Tender For supply of lab equipments - purchase of lab equipments, ask modulation and demodulation kitspecifications: 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. modulator type: switching modulator using analog switch / transistor switching ic. demodulator: envelope detector and lpf. comparator: lm311 based. supply voltage (board): +12 v, +5 v dc. supply current: 100 ma minimum. input voltage: 230 v ac, 50 hz. interface connectors: 2 mm banana socket., fiber optic communication trainer kitspecifications:power supply: 230 v ac 10%, 50 hz mains operation. built-in regulated power supply. optical transmitters: led transmitter: 660 nm. optical receivers: phototransistor / pin photodiode receiver. built-in signal conditioning and amplifier circuits. audio power amplifier with speaker/headphone output. comparator / pulse shaping circuit for digital signal recovery. test points for cro observation and signal monitoring. fiber media: multimode plastic optical fiber (pof). fiber patch cords with connectors. signal sources: built-in sine wave generator. built-in square wave / digital pulse generator. voice signal input through built-in microphone/audio source. trainer features: separate transmitter and receiver sections. on-board test points for signal observation. led indicators for signal monitoring. fault simulation facility. compact tabletop modular design. circuit diagram printed on pcb. bandwidth: analog bandwidth: up to 350 khz. digital bandwidth: up to 2.5 mhz. controls: variable signal amplitude control. variable frequency control. optical intensity adjustment. standard accessories: patch cords and connectors. power cord. audio connecting cable. user manual.

CTN :45355297

01 Jun, 2026 NA

Nilgiris - Tamil Nadu

Tender For supply of lab equipments - temperature transmitter trainer kit, closed loop control of temperature process using thermistor, proportional control of temperature process , on off control of temperature process

Central Government / Public Sector

CTN :45160230

19 May, 2026 NA

Multi City - Telangana

Tender For auction sale of depot miscellaneous scrap - 123001tp26a, 98414653, quantity: 4865 kgs. scrap condemned unserviceable telephones, telephone push buttons, control phones, caller id telephones, telephones desk type, telephones pd type and other similar telephone spares, walkie-talkies, chargers, walkie-talkie batteries, modems, switches, routers, emergency circuit controls, port switch, maple equipment, stm equipment, mux cabinet, voice logger equipment, auto dialling equipment, amplifier, axle counter eldyne toolkit, concentrator, ip dslam, combined portable control phone, exchange cards, body worn cam, night vision, digital cam, mobile, tab, trolley mirror, hq equipment, data logger cabinet, server, exchange cabinet, splicing machine, isdn exchange with cards, long range spot light, low loss cable, feeder cable, pa cabinet, ethernet switch, microphone, speakers, audio mixers, radio patching equipment, finger print kit, connecting cards-pcbs, wireless mikes with receivers, cordless hand phones, muxs, colour micro phones, lan cards, various types of cards, lan extenders, gateways, cpu stabilizers, eth converters, psus, dust-proof covers, press-to-talk switches, lcc cards, mux mother boards, telephones handle speaker, nokia chargers, weight pt phones, helical antenna, other signal and telecom equipments and similar materials of sorts and sizes, full or broken, with or without loose spares and with or without attachments. special note- purchasers of electrical and electronic equipment covered under e-waste rule 2011 in its schedule i should have registration from central pollution control board new delhi. the notification may be downloaded from the website of ministry of environment and forest notification so1035 [e] dated 12.05.2011 published in the gazette of india. location- bin no- 3001, in godown no- 3. hsn code: 85481090. gst: 18 percent. note: delivery by weighment basis only. special note: overload of the carrying capacity of the vehicle will not be permitted at the time of taking delivery as per motor vehicle act 1988.

Central Government / Public Sector

CTN :44977658

19 May, 2026 NA

Multi City - Telangana

Tender For auction sale of depot miscellaneous scrap - 123001tp26a, 98414653, quantity: 3905 kgs. scrap condemned unserviceable telephones, telephone push buttons, control phones, caller id telephones, telephones desk type, telephones pd type and other similar telephone spares, walkie-talkies, chargers, walkie-talkie batteries, modems, switches, routers, emergency circuit controls, port switch, maple equipment, stm equipment, mux cabinet, voice logger equipment, auto dialling equipment, amplifier, axle counter eldyne toolkit, concentrator, ip dslam, combined portable control phone, exchange cards, body worn cam, night vision, digital cam, mobile, tab, trolley mirror, hq equipment, data logger cabinet, server, exchange cabinet, splicing machine, isdn exchange with cards, long range spot light, low loss cable, feeder cable, pa cabinet, ethernet switch, microphone, speakers, audio mixers, radio patching equipment, finger print kit, connecting cards-pcbs, wireless mikes with receivers, cordless hand phones, decoders, colour micro phones, lan cards, various types of cards, lan extenders, gateways, cpu stabilizers, eth converters, psus, dust-proof covers, press-to-talk switches, lcc cards, telephones handle speaker, nokia chargers, weight pt phones, helical antenna, other signal and telecomm equipments and similar materials of sorts and sizes, full or broken, with or without loose spares and with or without attachments. special note- purchasers of electrical and electronic equipment covered under e-waste rule 2011 in its schedule i should have registration from central pollution control board new delhi. the notification may be downloaded from the website of ministry of environment and forest notification so1035 [e] dated 12.05.2011 published in the gazette of india. location- bin.no.3001, in godown no: 3. hsn code: 85481090. gst: 18 percent. note: delivery by weighment basis only. special note: overload of the carrying capacity of the vehicle will not be permitted at the time of taking delivery as per motor vehicle act 1988

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