Rosemount 2120 Liquid Level Switch
The Rosemount 2120 liquid level switch utilizes vibrating short fork technology. With a wide range of options available and performance unaffected by flow, turbulence, bubbles, foam, vibration, or solids content, the switch is perfect for nearly any fluid application including overfill protection, water ingress detection, limit detection, pump protection, high and low level alarm, hygienic applications, and fine chemicals and pharmaceuticals.
The Rosemount 2120 liquid level switch is available with a complete range of process connections, housing and wetted materials, hazardous area approvals, and fork lengths. Additionally four different switching functions are available. A mode switch allows to be set to switch from wet to dry (typically low alarm) or from dry to wet (typically high alarm). There is also a user selectable time delay from 0.3, 1, 3, 10, or 30 seconds. Increasing the time delay in turbulent or splashing applications virtually eliminates the risk of false switching.