The function of the flow sensor is based on the calorimetric principle. The probe is heated up from the inside a few degrees Celsius in relation to the flow medium, in which it protrudes. When the medium flows, the heat generated in the probe is dissipated through the medium. The temperature within the sensor is measured and compared with the likewise measured medium temperature. From the obtained temperature difference the flow state of each medium can be derived. These sensors are applied in areas such as monitoring of cooling systems, ventilation systems, pump dry running by checking the presence of liquid or gas flows.
INNOVATIVE SENSOR TECHNOLOGY IST AG
Switzerland
The IST AG FS2 flow sensors are applicable in gas and offer excellent long-term stability. In addition to measuring flow rates, the FS2 gas flow sensor is able to detect flow direction with outstanding sensitivity. Further advantages of the FS2 thermal mass flow sensor include: — Simple signal processing — Simple calibration — Bare sensor resists up to +450 °C (customer specific) — Stable platinum technology — Excellent reproducibility — No moving mechanical parts — Customer-specific sensor available upon request The IST AG FS2 flow sensors are optimal for measuring gas flow and direction.
Request for a quoteBEDIA MOTORENTECHNIK GMBH & CO. KG
Germany
Areas of Application and Advantages BEDIA CLS 10 stands for special versions of our well-proven CLS 40 series for heavy duty applications. Currently, the BEDIA CLS 10 series includes a variety of sensors, which are compatible replacement parts for level switches from Cooper Standard and Robert Shaw which are obsolete nowadays – and this in well proven BEDIA quality. This also includes sensors with 2 complementary CMOS outputs. It should be emphasized that the water sensors with two complementary outputs can be operated with a supply voltage of 4.75 V DC – 32 V DC. Operating Principle The function of the sensor is based on the capacitive principle. It detects the change in capacitance that arises when an electrode surrounded by air is immersed into a liquid medium. This change in capacitance at the electrode of the sensor excites an oscillator, causing it to oscillate (at a frequency of approx. 600 kHz). Then this signal is processed by a microprocessor-based evaluation circuit.
Request for a quoteEGE-ELEKTRONIK SPEZIAL-SENSOREN GMBH
Germany
EGE flow rate sensors for the flow rate detection of 0...1 l/min feature one-piece measuring tubes with an inner diameter of 3.5 mm to 4 mm from highly resistant stainless steel V4A (1.4571). For particularly aggressive media EGE offers special materials, such as bronze, Hastelloy, titanium or even PTFE. The devices can either be set up intuitively using a potentiometer and LED indications or easily programmed using buttons and a multi-segment display. EGE flow rate sensors can be installed in hoses or circuits with small pipe diameters using threaded fittings or compression fittings. The provide excellent measuring results wherever the safe, robust and low-maintenance monitoring of low flows is required.
Request for a quoteENVEA
France
Continuous mass flow measurement of all types of dust, powder and granules in free fall and pneumatic conveying. Microwave sensor for on-line mass flow measurement of solids up to 20 t/h.
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