Product Overview

SIS Sanitary Intelligent Level Switch - PC312-1231415M01 is a FINETEK SIS sanitary intelligent level switch designed for point-level detection in production tanks and pipelines. Its compact construction is intended for installation where space is limited, while its hygienic design supports food, beverage and pharmaceutical process environments. The sensing principle uses frequency scanning at the sensor tip; when the sensor is covered by the process medium, the electrical response changes and the switching output indicates the level condition.

Hygienic Process Design

The SIS family is designed for applications that require hygienic installation and regular cleaning. FineTek specifies suitability for CIP and SIP cleaning operations and states that the sensing surface roughness (Ra) can be customized according to customer requirements. The stainless-steel construction and sanitary mounting concept are intended for process tanks and pipelines used in food, beverage and pharmaceutical production.

Detection and Control

The intelligent sensing circuit evaluates the frequency response at the sensor tip to determine whether the target medium is present. This makes the switch suitable for liquids, viscous media and powder media. FineTek also describes two output signals with independently adjustable sensitivity, enabling applications such as differentiating two media including oil and water. A magnetic test function can be used to check operation and wiring, while LED indication provides a local status reference.

Protection and Operation

The official product page lists IP67, IP68 and IP69 protection levels for the SIS family. Over-current protection can detect abnormal output current and shut the output down. FineTek also notes that the installation position should be selected carefully where strong viscosity or sediment could coat the sensor and create an unwanted signal; an auxiliary rear-mounted rod can be used in suitable top-mounted installations where bridging is a concern.

Technical Specifications

Applications

The SIS family is intended for high- and low-level alarms and pump dry-run protection in process tanks or pipelines. Typical target industries identified by FineTek include food manufacturing, beverage manufacturing and pharmaceutical manufacturing. The complete model/order-code configuration should be matched to the intended sanitary connection, process arrangement and medium.