Flow measurement in harsh conditions The SCHMIDT® flow sensor SS 20.700 is a robust solution for highly demanding heavy-duty applications in air and other gases. With sensor elements completely encapsulated in stainless steel, it impresses with its resistance to aggressive media and dirt. Flow rates of gases – an important parameter in industrial processes Energy saving and quality assurance measures are becoming increasingly important in the production process of industrial processes. The precise measurement of volume flows and flow rates of the gases plays a major role. The requirements for the intended flow sensor are high: The sensor should deliver precise measurement results in different gases, high overpressures and wide temperature ranges - even under the most difficult environmental conditions. Another criterion when choosing the right sensor is the avoidance of maintenance and high follow-up costs. Users want easy installation and reliable readings over the years. Robust solution for heavy-duty industrial processes and compressed air technology The thermal SCHMIDT® flow sensor SS 20.700 is the robust solution for extremely challenging industrial applications. It can be used for various applications such as compressed air monitoring, gas monitoring for process burners, metering of gas consumption and much more. The double pin sensor was designed precisely to meet the needs of so-called "heavy-duty applications" and is ideally suited for demanding applications such as e.g. B. the production of bio-gas. In addition, the sensor is resistant to aggressive media. In addition to the flow velocity, the SS 20.700 also records the medium temperature up to +120 °C. It can be used in small pipes from DN 40 and can also record the volume flow in large ducts up to a sensor length of 600 mm. The sensor can be used up to an overpressure of 16 bar. The installation of the sensor is very easy: Screw in the sensor using the supplied through-bolt, align it in the gas flow and in the middle of the pipe, connect electrically - done. The sensor works without moving parts and due to the measuring principle, drift or aging are irrelevant. Due to the sensor elements being completely encapsulated in stainless steel, the maintenance of the sensor is reduced to an absolute minimum. However, should cleaning be necessary, this can be carried out very easily and in a variety of ways - in the spirit of "heavy-duty". High gas velocities and special gases The special double pin sensor head records flow velocities from 0.1 m/s up to 220 m/s. In order to obtain precise measurement results in this very wide speed range, each sensor is individually adjusted in a high-quality pressure wind tunnel. The sensor can be supplied in individual versions for use in different gases, e.g. B. for pure oxygen, nitrogen, argon, CO2 and other gases. Individually adapted to each application There are 2 standard sensor lengths to choose from for optimum installation in different pipe diameters. The SS 20.700 can also be ordered in a remote version for difficult installation conditions. The standard sensor lengths are available here, the cable length between sensor and housing can be freely defined (up to 10 m). In addition to various standard measuring ranges, the flow sensor can also be supplied with an application-specific measuring range. For media with an oxygen content of > 21% by volume, all parts that come into contact with the medium must be cleaned of grease, oil or other combustible components. Two special variants "Oxygen O2 > 21%" and "Fat-free and oxygen O2 > 21% (LABS-free)" provide the necessary security for these applications. Modular function extension In addition, the SS 20.700 has a module interface as standard for the modular expansion of the sensor's range of functions. The sensor can be parameterized via the module interface, a Bluetooth® wireless transmission to the SCHMIDT® Sensor App can be implemented or the additional 7-segment display MD 10.020 can be connected. The SCHMIDT® data logger DL 10.010 can also be operated via the module interface. The module interface also has an LED light ring, which signals communication with other additional modules by means of different colors and pulsing. The sensor parameterization enables e.g. B. a scaling of the measuring range to individual needs, the settingment of a damping and much more. Highlights of the SCHMIDT® flow sensor SS 20.700: Sensor elements completely encapsulated in stainless steel Large flow measurement range from 0.1 to 220 m/s Temperature measurement range from -20 to +120 °C For air and gases in applications with harsh conditions (medium with aggressive components, pollution, high humidity) Very robust design and overpressure resistant up to 16 bar Easy cleaning thanks to the encapsulated stainless steel surface Sensor configuration via module interface SCHMIDT® flow sensor SS 20.700: Especially designed for "heavy-duty applications": Thanks to the sensor elements completely encapsulated in stainless steel, they are ideal for demanding applications such as e.g. B. the production of bio-gas etc. Suitable and resistant to aggressive media.
Redundant laminar flow monitoring at one measuring point SCHMIDT® duplex flow sensor SS 20.415 Twin* is a high-precision 2-in-1 flow sensor solution for laminar flow monitoring. A redundant monitoring of the laminar flow with two independently working flow sensors at one measuring point, without mutual interference, is thus successfully solved. Monitoring the flow in cleanrooms and clean areas A direction-defined air flow in clean rooms protects products from contamination and disruptive particles are safely removed. For this purpose, a uniform air flow from the ceiling to the floor is maintained in clean rooms with high cleanliness classes ("directed, low-turbulence displacement flow"; monitoring range from wN = 0.36 to 0.54 m/s). The measurement is carried out on the clean room side after the terminal filters. Since the air circulation is throttled during idle times, high-precision measurement of the air speed from 0.1 m/s is necessary. Measuring and controlling the supply air flow with the SCHMIDT® duplex flow sensor SS 20.415 Twin Two redundantly working flow sensors such as the SS 20.415 LED are often installed in one application, for example to map the control and monitoring of the laminar flow independently of one another. Limits are often reached when it comes to the optimal placement of the two sensors due to cramped spatial conditions. Even if the assembly can ultimately be implemented, the mutual influence of the two sensors is a big unknown. With the SCHMIDT® duplex flow sensor SS 20.415 Twin*, both of the above problems can be easily solved. By combining two flow sensors that work completely independently, it has been possible to implement a redundant flow measurement at the same measuring position and to eliminate the mutual influence of the two probes. Both flow signals are made available separately from each other via two analog outputs. Thanks to the SCHMIDT® quick mounting system, which is suitable for clean rooms, the duplex sensor can be exchanged for an existing sensor without any additional effort. The installation effort is identical, the space required for installation is slightly higher. Highlights of the SCHMIDT® Duplex flow sensor SS 20.415 Twin*: Redundant protection of laminar flow applications Two fully-fledged flow sensors working independently of each other in one unit Easy installation at a measuring point No mutual interference of the measurement Constrained space becomes a minor matter Plug and play and quick assembly Precise measurement of small flow velocities [wN] Straight and angled design for wall or ceiling mounting SCHMIDT® duplex flow sensor SS 20.415 Twin*: Optimally suited when double protection of the laminar flow monitoring is required and when space is limited. Two redundant flow signals from one measuring point - without mutual interference. Available in straight and angled designs (depending on mounting requirements * protected by DE 20 2021 103 497.1
Installed flow sensors should be verified on site from time to time, especially in clean rooms or in clean processes. This can be done with the SCHMIDT® Bluetooth® Verification Probe SS 20.450 can now be implemented in the simplest way. The SCHMIDT® flow sensor remains in place and the verification probe is easily attached to the flow sensor with the supplied metal clip. The verification probe has a self-sufficient power supply and can therefore be operated completely wirelessly for up to 8 hours. This enables a sensor check without removing it from the clean area and then having to clean it, which is time-consuming. The system operator can now use the SCHMIDT® Sensor App previously installed on the mobile Android device to verify the sensor and view the real-time measurements graphically on the smartphone or tablet and record the values (data logger function). The recorded data can be saved and further processed. Another area of application for the SCHMIDT® Bluetooth® Verification Probe SS 20.450 is the setup mode for a wide variety of systems and applications. Easy, fast and secure verification of built-in sensors - mobile on site Easy clamp-on installation Plug and Play No additional power supply required Radio module with Bluetooth® technology for transmission of the standard flow rate wN Display and real-time recording of the measured values via the free SCHMIDT® Sensor App on a mobile Android device - wireless, anytime and anywhere (depending on from the radio range, typically 10 m line of sight) .
SCHMIDT® smart solutions with Bluetooth® technology - wireless flow sensor values are transmitted anytime and anywhere In many installations, displays built into the flow sensor cannot be recognized or simply cannot be read due to the installation position of the sensor. Nevertheless, there is a need to display the measured values of the individual built-in sensors on site from time to time. This can now be implemented in the simplest way with the SCHMIDT® Bluetooth® module BT 10.010: An adapter is connected to each SCHMIDT® volume flow sensor to be monitored at the module connection. The system operator can now select one sensor after the other with the SCHMIDT® Sensor App previously installed on the mobile Android device, display the real-time measurements graphically on the smartphone or tablet and even record the values (data logger function). The recorded data can be saved as a CSV file and processed further. The SCHMIDT® Bluetooth® module BT 10.010 is ideally suited if the currently measured values of standard volume flow and medium temperature of various sensors are to be displayed one after the other on site. Highlights of the SCHMIDT® Bluetooth® module BT 10.010 Bluetooth® adapter for radio transmission of Standard volume flow VN Medium temperature TM Display and real-time recording of the measured values via the free SCHMIDT® sensor app on a mobile Android device - wireless, anytime and anywhere Further processing of the stored data Plug and Play The radio range is typically 10 m on sight. The SCHMIDT® Bluetooth® module BT 10.010 can be placed up to 30 m away from the sensor with a cable in order to increase the range. Display of current measured values as a history graph. The user can choose between a fixed and a variable scale. SCHMIDT® Sensor App for displaying the real-time measurement of volume flow and medium temperature as well as sensor information; z. B. Sensor name, serial number, model, article number, measuring ranges, minimum and maximum values and current measured values. Press the red "Record Button" to record in real time. SCHMIDT® Sensor App enables the recording of real-time measurements, as well as the storage and subsequent external processing of the data. These can be saved, shared by email and then processed further with additional software.
With the SCHMIDT® measured value display module MD 10.020 in a robust metal housing, you have a direct view of the volume flow and medium temperature! With certain installations, there is a need to have an eye on the measured values for volume flow and medium temperature on site at all times, but this is often not possible due to the given installation position with permanently integrated displays. This can now be realized very easily with the SCHMIDT® measured value display module MD 10.020. With the supplied cable, the display can be placed on site in such a way that the best possible readability is guaranteed. With the MD 10.020, the distance between the sensor and the display module can be increased to up to 30 m by using a longer cable. Even the measured values from remotely installed volume flow sensors can be read at any time without any effort. If necessary, the displays of several sensors can be brought together on site in a central place and facilitate a constant overview. The SCHMIDT® measured value display module MD 10.020 is ideal for on-site display of the currently measured values of standard volume flow and medium temperature. Highlights of the SCHMIDT®measured value display module MD 10.020 Two-line display module Direct output from Standard volume flow VN Medium temperature TM Detached display for optimal readability No additional power supply required Plug and Play