The KAL-K thermal flow switch and KAL-A thermal flow sensor utilize Kobold's revolutionary, temperature compensating electronics. These compact, one-piece units provide reliable readings unaffected by temperature or physical characteristics of a wide variety of process liquids. This breakthrough is made possible through the use of state-of-the-art microprocessor technology. The microprocessor can be field calibrated to the users' liquid properties and operating range in a simple, five minute set-up procedure. This intelligence, coupled with a "no moving parts" design, make the KAL a superior performer in virtually all applications.

The KAL-K incorporates an 8 segment bar-graph LED flow trend indicator and one flow alarm setpoint. The setpoint is fully configurable as NPN, PNP, normally-open or normally-closed. The KAL-A applies the KAL's advanced microprocessor based technology to the problem of rate detection. It incorporates a 4-20 mA, flow rate proportional output, the same 8-segment LED display found in the KAL-K, and an optional PNP setpoint alarm relay.

Based on the calorimetric principle, both units use a single element to both heat the probe tip and measure its temperature, allowing the probe to be machined into a single, continuous, protrusion-free surface to prevent contaminant build-up. Sanitary model available.