For ventilation, air-conditioning, cleanroom and pharmaceutical applications.

In many applications, direct measurement of the flow velocity and of the volumetric flow in air and gases is the ideal solution. Owing to the high requirements in modern control technology, the flow sensor used must be able to measure precisely and quickly over an extremely wide range from "almost zero" to the maximum value.

Typical applications of the SCHMIDT^® Flow Sensor SS 20.250 Hygienic Design with dumbbell head technology include:

• Monitoring and energy-efficient control of fans
• Continuous monitoring of filter units
• Safe control of the volumetric flow rate of extraction units
• Monitoring of laminar flow in cleanrooms

Hygienic Design

• Smooth, finished surface—no chance for production residues to stick to it
• Corrosion-resistant (V4A stainless steel)
• Easy to clean
• Resistant to commercially available cleaning agents
• No dirt pockets
• Sensor with a 1.5-meter hygienic design cable featuring an M12 plug, as well as an additional 10-meter hygienic design cable with an M12 socket

The smallest all-rounder

Thanks to its compact mechanical design, the SS 20.250 can be installed very easily via a flange or a compression fitting. Its complete electronics are housed in the robust metal sensor tube, which has a diameter of only 9 mm.

Technology

Thanks to the dumbbell technology used and the high flow angle (radial: 360°, axial: ± 45°), the sensor can be positioned in the gas flow safely and quickly. In addition to detecting the standard flow velocity of 0.06 to 20 m / s, it also measures the temperature of the medium. The available linear output signals are 4 ... 20 mA and 0 ... 10 V in each case – as a function of the connected load resistance giving you a universal sensor and automatic detection of U or I output.

Measuring accuracy in black and white

Optionally, the SCHMIDT^® Flow Sensor SS 20.250 Hygienic Design can also be ­delivered with a DAkkS accredited calibration.