Kobold offers the type MAS mass flowmeter that works according to the calorimetric method of measurement and was specially conceived for gas flow measurement. Since gases can be compressed, the volume changes with pressure and temperature. In practice this means that calibration should be done for a particular working pressure and temperature. This conversion is not needed with the MAS electronic mass flowmeter because only the mass flow of the gas is determined by measuring the heat transfer.
The gas is led through a sophisticated, laminar flow bypass that gives it a laminar stream. Due to the pressure difference that arises, a small quantity of gas branches off into the measuring pipe. With laminar flow, the distribution ratios of both gas quantities remain constant. This is important for the calculation of the flow volume. There are two temperature measuring points (RTD elements) in the measuring tube arranged in sequence (one behind the other). The gas flowing through is subjected to a constant amount of heat. The gas molecules absorb that heat and carry it away. This creates a temperature difference between the sensors that increases with the amount of gas that flows through. The temperature difference creates a resistance difference in the RTD elements. It is now only necessary to convert the temperature difference into the standard mass flow. A state-of-the-art electronic 180° rotating LCD display shows the corresponding volume flow in standard units per minute. The digital display makes it virtually impossible to make a reading error.
The low heat capacity of the measuring tube and the low mass of the auxiliary flow guarantees users a fast response time. Since pressure and temperature changes have only a small effect on the measurement, the mass flowmeter can be used within a large pressure and temperature range without need for adjustment. The standard equipment includes an analog output so that readings can be continuously processed further. Another advantage of the MAS is the large measuring range in different steps of 0-10 Nml/min up to 0-500 Nl/min. The MAS has small dimensions and can be used in any position.
Typical applications are in process control, laboratories, gas display tables, OEM applications, leakage rate testing, filter monitoring and gas flow calibration. The sophisticated measuring procedure and modern electronics make the MAS suitable for a wide range of applications and greatly simplify the measuring of gas flow.
Ultra-compact mass flow meters with advanced transmitters Emerson Automation Solutions
Flow Measurement & Control
Emerson has introduced the Micro Motion G-Series line of Coriolis mass flow and density meters, the most compact dual-tube Coriolis mass flow meters on the market. They offer the same level of quality and reliability as standard designs, but in a much smaller and lighter form factor.
Read more...Pressure sensors for hydrogen applications Instrotech
Pressure Measurement & Control
Keller manufactures isolated piezoresistive pressure sensors. The great advantage of the piezoresistive measuring principle is its high stability.
Read more...Optimisation of alkaline electrolysers Samson Controls
Flow Measurement & Control
his application study relates to the use of a smart meter valve in alkaline electrolysers, and is based on proven experience with one of the biggest hydrogen electrolyser producers in the world. The project proves that the smart meter valve’s added functionality creates an ideal setup in alkaline electrolysers for reducing cost and improving functionality and system performance.
Read more...Preventing spills and improving operational efficiency
Flow Measurement & Control
In an industry where every spill carries a hefty price tag, Point Energy Partners found that the manual and low-tech systems at their saltwater disposal sites were a significant problem.
Read more...Wind turbines with smart sensors Instrotech
Motion Control & Drives
The wind’s usable kinetic energy increases with the wind speed. Wind turbines, therefore, use kinetic energy to generate torque and then rotational movement. The rotor, consisting of three rotor blades, ...
Read more...Infrared camera for condition monitoring and early fire detection Instrotech
Temperature Measurement
The Optris PI 640i thermal imager is the smallest measuring VGA infrared camera, with a body-sized volume of 45 x 56 x 90 mm, and weighing only 269 to 340 g, depending on the lens. It counts among the most compact thermal imaging cameras on the market.
Read more...Accurate flowmeter for oil & gas Endress+Hauser South Africa
Flow Measurement & Control
Promass Q, the high-tech Coriolis flowmeter from Endress+Hauser, is now also available for larger pipe sizes with maximum flow rates between 850 and 2400 tph.
Read more...Pressure monitoring for oil and water tempering machines Instrotech
Pressure Measurement & Control
Temperature plays a significant role in many manufacturing processes. In such cases, a tempering machine is used to maintain the manufacturing process at the desired temperature. Keller supplied PR-21Y piezoresistive pressure transmitters to a client specialising in developing and producing oil and water tempering machines.
Read more...Optimising CIP processes with precision instrumentation Endress+Hauser South Africa
Flow Measurement & Control
Many food and beverage manufacturers encounter challenges with CIP processes that take too long. Have you considered exploring potential solutions to address these issues?
printer friendly version