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Tender Value
Refer Docs
Closing Date
20 Jul 2026, 3:00 pm
PRINCIPAL
GOVERNMENT POLYTECHNIC COLLEGE, TRIVANDRUM ROAD, TIRUNELVELI - 627007
REFER TENDER NOTICE
2026_DoTE_684170_1
9/A3/2026
Open Tender
Electrical Goods/Equipments
GOVERNMENT POLYTECHNIC COLLEGE
Please refer Tender documents.
4 documents required · 4 mandatory
₹0
Exempted
6 Jul 2026
6 Jul 2026
21 Jul 2026
6 Jul 2026
20 Jul 2026
6 Jul 2026
| Sl No | Description | Qty | Unit | Est. Rate | Est. Amount |
|---|---|---|---|---|---|
| 1 | STRAIN GUAGE CHARACTERISTICS 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, Signal Conditioning and amplification circuit, Instrumentation amplifiers with 3 ½ 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 chords | 1 | Nos. | - | - |
| 2 | 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: 0-10Kg ,
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 | 1 | Nos. | - | - |
| 3 | MEASUREMENT OF TANK LEVEL USING ROTOMETER
Input supply: 230 v/50 Hz with regulated internal DC supply ,Tank Arrangements: 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 arrangements 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 | 1 | Nos. | - | - |
| 4 | MEASUREMENT OF TEMPERATURE USING PT 100:
Input supply : 230 v/50Hz ac with regulated internal DC power supply unit , Sensor: PT 100 resistance temperature Detector (RTD) probe with stainless steel sheath, Measurement principle: Resistance variation of platinum element with temperature, Temperature Range : 0 OC to 150OC (or suitable laboratory range ),Display unit: Digital temperature indicator with direct OC display, Accuracy: High accuracy with linearized RTD signal conditioning circuit, Signal conditioning: Built -in bridge circuit with amplifier and linearization ,Test points: Provided for RTD input, bridge output, amplifier output, and final display signal, Controls: Zero and span calibration adjustment for temperature calibration , protection: Over-voltage and short circuit protection for electronic modules , Accessories: Temperature bath or heater arrangement, connecting cables, user manual, and circuit diagram included. | 1 | Nos. | - | - |
| 5 | TEMPERATURE MEASUREMENT TRAINER WITH PT 100, NTC, TC:
Input supply: 230 v/50Hz ac with regulated internal DC power supply unit, sensors provided: PT 100 RTD,NTC thermistor, and thermocouple(TC-K type), Measurement principle: Resistance variation (PTC &NTC) and see back effect (thermocouple), Temperature Range: suitable for laboratory range (0OC to 150OC or higher depending on sensor), Display unit: Digital temperature indicator with selector switch for PT 100/NTC/TC, Signal conditioning: separate condition circuits for RTD bridge, thermistor network, and thermocouple amplifier, Test points: provided for sensor input ,conditioned output, and final display signal, Controls: sensor selection switch, zero/ span calibration , and temperature adjustment control, Protection : over- voltage and short circuit protection for electronic modules , Accessories: Heating source or temperature bath connecting leads | 1 | Nos. | - | - |
| 6 | Bourdon tube pressure gauge:
Analog indicating type , Measurement Ranges: 0 to 10 bar , Dial size: 100mm nominal dial diameter, Accuracy: + 1.6% of full scale(FS),Pressure element: bourdon tube made of phosphor bronze/stainless steel-case material: mild steel powder coated /SS304 stainless steel, window material: clear acrylic/glass, connection type: bottom entry/back entry,1/2" BSP threaded connection(or1/4" BSP as required), Mounting: Panel mounting / direct mounting , Scale: Dual scale: bar, psi, Pointer: Micrometre adjustable aluminium pointer, Operating Temperature: Ambient: –10°C to +65°C, Process fluid temperature: up to 80°C , Protection Class: IP54 minimum , Over Pressure Limit: 130% of full scale value , Calibration: Factory calibrated with calibration certificate | 1 | Nos. | - | - |
| 7 | Differential Pressure Transmitter :
Input Supply: 230 V / 50 Hz ac with regulated internal DC power supply unit, Tank Arrangement: Transparent tank with mounting stand for real-time liquid level observation, Tank Capacity: Laboratory-scale transparent tank with capacity 30 litres suitable for 0–100% level measurement, Differential pressure range: 0–100 mbar to 0–10 bar. Accessories: Complete piping, control valves and pump system for continuous water circulation and level variation, Display Unit: Digital indicator for real-time level measurement and monitoring, Output signal: 4–20 mA DC, two-wire system, Accuracy: ±0.1% of full scale, Test Points: Provided for DP input ports, transmitter output, and signal verification., Controls: Zero and span calibration adjustment for accurate level setting, Process connection: 1/4" NPT / 1/2" BSP female adaptor, Wetted parts material: SS316 stainless steel, Enclosure protection: IP65 / IP67, Communication: HART protocol compatible, Operating temperature: –20°C to +70°C. • Mounting: Wall/pipe mounting with bracket, Protection: Over-voltage and short-circuit protection for electronic and electrical modules, Over pressure protection: 150% of rated pressure. | 1 | Nos. | - | - |
| 8 | Solenoid Valve Kit :
Type: Electrically operated solenoid valve trainer / kit. ,Valve type: 2/2 way and 3/2 way normally closed (NC) solenoid valves, Operating voltage: 12 V DC / 24 V DC / 230 V AC, Port size: 1/4" BSP threaded connection. ,Body material: Brass / stainless steel, Seal material: Nitrile (NBR) / Viton, Operating pressure: 0–10 bar, Flow media: Air, water, and non-corrosive fluids, Coil insulation class: Class F or better, Protection class: IP65 minimum, Response time: Fast switching operation, Mounting: Panel/base mounting arrangement, Indicators: LED indication for valve ON/OFF status. Accessories: Connecting tubes, fittings, power cord, and control switches. | 1 | Nos. | - | - |
| 9 | CALORIMETER:
Vessel material: Copper / aluminium calorimeter vessel, Capacity: 250 ml / 500 ml minimum, Insulation: Double-walled insulated outer container, Stirrer: Non-corrosive stirrer provided, Thermometer provision: Suitable slot for thermometer/temperature sensor, Lid arrangement: Insulated lid with openings for stirrer and thermometer, Temperature range: Ambient to 100°C, Least count compatibility: Suitable for 0.1°C thermometer, Heating arrangement: Compatible with external heater / immersion heater, Mounting: Table-top laboratory model, Accessories: Stirrer, lid, thermometer, measuring cup, and connecting accessories. | 1 | Nos. | - | - |
| 10 | SOLAR WATER HEATER PERFORMANCE TEST SETUP :
Collector type: Flat plate collector / evacuated tube collector, Collector area: 1 m² to 2 m² minimum, Storage tank capacity: 50 litres to 100 litres, Tank material: Stainless steel insulated storage tank, Absorber material: Copper/aluminium absorber plate with selective coating, Glazing material: Toughened glass cover, Insulation: Mineral wool / PUF insulation provided, Circulation type: Natural circulation / forced circulation system, Temperature measurement: Digital temperature indicators at inlet and outlet, Flow measurement: Rotameter / flow meter provided, Pressure measurement: Bourdon pressure gauge provided. Heating backup: Electrical heater backup provision, Mounting frame: Corrosion-resistant inclined mounting structure, Data acquisition: Provision for performance analysis and efficiency calculation, Power supply: 230 V AC for instrumentation and heater backup, Accessories: Connecting pipes, valves, sensors, control panel and experiment manual | 1 | Nos. | - | - |
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