For supervision and control in industrial processes the thermic SCHMIDT® Flow Sensors provide many benefits:

• Direct detection of norm flow velocity independent of pressure and temperature
• Highly accurate and reproducible – documented by ISO – calibration certificates
• Available in ATEX-version for use in explosion-protected environments
• Sensors with dumb-bell head and special coating are suitable for dusty and / or aggressive gases
• Applicable up to +350 °C medium temperature
• Suitable in different gases and gas mixtures – up to 16 bar overpressure

Thermal flow sensor to monitor the flow velocity of air and gases. Patented sensor head, substantially direction-independent and dirt resistant. Adjustable or pre-programmed switching threshold. Optical display of switching and operating state. Increased media resistance through optional protective coating technology (SS 20.201).

Application examples

• Airflow monitoring
• Filter monitoring
• Cooling air monitoring
• Laboratory exhausts
• Workstation exhausts
• Semiconductor processing systems

Product advantages

• Rotation-invariant measurement, relative to the longitudinal axis of probe
• Compensated flow angle vertically to the longitudinal axis of probe: ±45°
• Switch threshold adjustment with potentiometer or programmed in factory according to customer's requirements
• Signal of switching state by LED and switching output
• Resistant to dirt
• Suitable for very small flow velocities

SCHMIDT Technology offers under the name SS 20.260 a new flow sensor which is robust and very compact. It´s measuring range of 20 m/s and linear analog output identify him as universal sensor for measurements of air velocity, volume flow and mass flow in a lot of applications. The sensor is robust due to a chamber in which the sensing element is protected against impacts. The stainless steel sensor tube is available in different length and thus can be placed at the correct po-sition regardless of the size of the duct. Two LED's indicate the correct operation or inform about wrong supply voltage or sensor defects.

Applications

• Flow measurements in air ducts,
• Volume flow measuring in test benches,
• Combustion air control in burners for oil, coal, wood or gas,
• Flow control in cooling or drying constructions