Industrial Laundry Water Liquid Level Sensor

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chemical-feed

When a North American industrial laundry company needed reliable level measurement in their water bulk storage tanks, they turned to Flowline. Industrial launderers clean large quantities of fabrics such as linens, tablecloths and uniforms for their customers under service contract. Water and wastewater treatment represents up to 50% of their total operating costs, making water efficiency and conservation critical to their success. At this Minnesota laundry facility, the tunnel washing process is fed by hot and cold water contained in metal bulk storage tanks. Water, first passes through the boiler where it’s heated up to 160° F before entering the hot water storage tanks. There, steam continuously rises off the water surface, resulting in heavy, dripping condensation throughout the tank. For this reason, Flowline suggested the use of non-contact pulse radar sensors (that are unaffected by steam and condensation) in the hot water tanks, and ultrasonic sensors (that are more cost effective) in the ambient cold water tanks. The result is reliable and cost effective level measurement. Here, an EchoPulse 26 GHz pulse radar level transmitter (top) and EchoSonic ultrasonic level transmitter (bottom) are installed over the hot and cold water storage tanks in adjustable side mount brackets. The two-wire, 4-20 mA signal outputs are connected to the PLC for inventory monitoring and alarms.