Online Superficial Gas Velocity, Holdup, and Froth Depth Sensor for Flotation Cells

Table 1

Wet cabinet components.

Component	Specifications
Pressure sensor	Model: Wika S-20
	Range: 0-4 bar
	Output: 4-20 mA
Solenoid valve	Model: SMC, VT307E
	24 (VDC) coil
Air control valve	Model: SMC, VEX1130
	Operation: 0.05–0.9 MPa
	Pneumatic
IP transducer	Control Air Inc.
	Model: type 500-AC
Flowmeter	Model: SMC, PFM7201
	Range: 25 L/min and 200 L/min (SLPM)
	Output: 4-20 mA
Pressure regulator	Model: Foxboro
	Type 67 F, R28