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Cooling Tower Sump Liquid Level Sensor

author: comefrom: createdate:2018/8/15 17:39:49 hits:2

BMW of North America needed reliable level measurement of their cooling tower sumps, they turned to Holykell. The reclamation, cooling and treatment of process water is critical to their manufacturing operations, and their previous float level sensors were unreliable due to corrosion, scaling, and to a lesser extent, agitation. For this reason, Holykell suggested the use of our non-contact ultrasonic sensors with rugged PVDF transducers and PP enclosures. Additionally, it was suggested that the sensors be mounted in a stand-pipe so as to dampen any surface agitation at the point of sensing. The result is reliable sump level measurement. Here, a ultrasonic level transmitter is mounted on a 2stand-pipe, which is bracket mounted to the side wall of each sump. The IP65 sensor was easily configured using the internal push button display module. The two-wire 4-20 mA signal is connected to the PLC for level monitoring with high and low level alarms.


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