Direct flow measurement solves lots of tasks
The direct measurement of flow velocity in air and gases is the ideal solution for many applications. An accurate sensor is the first step of efficient and safe regulation and control. Thus there are high requirements from this sensor like a very wide measuring range of nearly zero up to the maximum value. Extensive and fault-prone detection of additional measurements, which have also to be calculated, are thus avoided. Typical applications of the SCHMIDT® flow sensor SS 20.260 in chamber head technology for ventilation and air conditioning as well as industrial processes are as follows:
Inspection and energy efficient control of ventilation
Permanent monitoring of filter units
Safe control of volume flow in exhausts
Monitoring and control of supply air in industrial burners
Detection of air flows in quality relevant drying processes

The specialist with fast reactions
The thermal SCHMIDT® flow sensor SS 20.260 solves the user’s requirements in an ideal way. The rugged design of the chamber head offers optimal protection against mechanical impacts of the sensor element in “free jet” applications. The installation into channels with a diameter from 25 mm up to 1 m is also very easy by means of a flange, compression fitting or by a central screw.

The chamber head technology
The sensor is positioned in the gas flow in a way that allows a parallel flow of the medium through the chamber head. Due to the special mechanical design the obstruction in the flow is very small and the parallel positioning towards the flow supports a self-cleaning effect of the sensor element. For the protection against serious dirt particles there are security wires installed in front and behind of the sensor element. In addition the direct contact of the sensor element to the medium leads to a very fast measured value detection. Any necessary cleaning can be carried out very easily by immersion into water, alcohol or blowing out.

Two measuring units in one sensor
On request the SCHMIDT® flow sensor SS 20.260 can be delivered with an integrated temperature measurement from which the medium temperature can be detected over a wide range of -20 up to +120 °C without any additional installation effort. As linear output signals there are 0…10 V (only flow) or 4… 20 mA (for flow and temperature) available.

Accuracy in black and white
On request the SCHMIDT® flow sensor SS 20.260 can be delivered with an ISO calibration certificate which documents the high accuracy und reproducibility of flow measurement on the basis of real measuring values and deviations. SCHMIDT Technology carries out the measurement in reference channels. This calibration can be renewed by the user at any time.