RENEWABLE ENERGY PRACTICAL EQUIPMENTS

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 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 3½ 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. • 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.

TEMPERATURE MEASUREMENT TRAINER WITH PT 100, NTC, TC • Input Supply: 230 V / 50 Hz ac with regulated internal DC power supply unit. • Sensors Provided: PT100 RTD, NTC thermistor, and Thermocouple (TC – K type). • Measurement Principle: Resistance variation (PT100 & NTC) and Seebeck effect (Thermocouple). • Temperature Range: Suitable for laboratory range (0°C to 150°C or higher depending on sensor). • Display Unit: Digital temperature indicator with selector switch for PT100 / NTC / TC. • Signal Conditioning: Separate conditioning 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

Bourdon Tube Pressure Gauge Bourdon Tube Pressure Gauge: Analog indicating type Measurement Range: 0 to 10 bar Dial Size: 100 mm 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 (or 1/4" BSP as required) Mounting: Panel mounting / direct mounting Scale: Dual scale: bar, psi Pointer: Micrometer 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

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 liters 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.