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Sierra's Innova-Switch™ flow and level switches represent the state-of-the-art in gaseous and liquid flow switching or liquid level control. Innova-Switch was designed to meet a broad range of performance and environmental application requirements. The sensor and other wetted materials are 316L stainless steel and feature all welded construction with no moving parts. The Innova-Switch is easy to install and adjust, giving reliable, low maintenance performance in the most demanding applications.
Flow and level detection is accomplished by using a high-resolution thermal differential technique. The sensor consists of a pair of matched Resistance Temperature Detectors (RTD's). One RTD is self-heated using a constant DC current. The other RTD is unheated and provides an accurate process temperature reference. The thermal differential created between the reference and the heated RTD pair is a function of the density and/or velocity of the media with which the sensor is in contact.
| Common Innova-Switch Applications: |
Pump protection • Safety spray nozzle monitoring • Cooling water/heat exchangers • Oil well system testing • Drain line flow • Relief valve monitoring • Seal detection • Chemical injection • Lubricant monitoring • HVAC monitoring • Reverse vent flow monitoring • Flow direction detection • Reverse pressure detection • Valve switching verification |
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