This equipment consists of two separate, transparent cylinders full of air. Air is compressed (quasi-isothermally) by the water pushed by a compressor, in the cylinder on the left, and the pressure variation versus volume is measured. Air is heated (at constant volume) by a resistor controlled by a thermostat, in the cylinder on the right, and the pressure variation versus temperature is measured. The left cylinder includes a thermo-resistance, a pressure transmitter and a level transmitter. If the section of cylinder is known, this level transmitter enables to calculate the available air volume. The right cylinder is provided with a thermistor and with a pressure transmitter. All measures (pressures, temperature, level, etc…) can be seen on digital displays and they can be stored in a PC by the (optional) data acquisition system
TECHNICAL CHARACTERISTICS:
• Framework of AISI 304 stainless steel
• Graduated cylinder of transparent methacrylate, with volume of 3 litres, equipped with:
– Pt100 thermo-resistance of AISI 316 stainless steel
– pressure transmitter of stainless steel, with range of -1 to 3 bar
– level transmitter with range of 0 to 300 mm
• Cylinder of transparent methacrylate, with volume of 3 litres, equipped with:
– Pt100 thermo-resistance of AISI 316 stainless steel
– pressure transmitter of stainless steel, with range of -1 to 1.5 bars
– electric resistor of 300 W controlled by thermostat
• Compressor
• Water tank
• Switchboard of painted carbon steel including:
– 5 electronic indicators
– automatic/differential switch
• Power supply: 230 Vac 50 Hz single-phase – 500 VA (Other voltage and frequency on request)
OPTIONAL ACCESSORIES:
• Data acquisition software with interface
