The Thermal Flow Switch Monitor SP-150 is based onthe principle of thermal dispersion. A typical configurationuses two Temperature Detectors set within the tip of thesensor. One Temperature Detector is heated a fewdegrees above the other one. As the process mediumflows over the tip of the sensor it disperses some of theheat from the heated Temperature Detector. The deltatemperature is a function of flow velocity and convertedinto electronic signal. The open collector changes state once the set point has been reached.

Features:

The Thermal Flow Switch Monitor SP-150 housing ismade of stainless steel, suitable for high pressure, hightemperature application. Because its rugged structureand there is no moving parts, it's can be maintenancefreefor most application

No. Item Specification

1 Measuring range(Velocity) Water: 1~150 cm/s

Oil: 3~300 cm/s

2 Working temperature(fluid ) -20 ~ +80BC

3 Alarm output Open collector: NPN / PNP (<400mA)

4 Working pressure 100 bar (max.)

5 LED indication:

--Velocity is below set point.

-- Velocity is equal or above set point,

Output engaged.

-- Velocity above set point,

Output engaged.

Red LED lit

Yellow LED lit

4 green LED indicates a percentage of

flow above the set point

6 Housing SUS304 / SUS316 / PVDF

7 Enclosure IP67

8 Response time Approximate 10 seconds

9 Process connection G1/2", G1/4", NPT1/2"