This compact air flowmeter has all the functions required to measure the flow rate of air, nitrogen, and carbon dioxide. It has various functions useful for saving energy such as cost indication and leak checking, and can be used in a wide range of applications.
- Accurate mass flow rate measurement with compensation function
- Display of flow rate, cost, and other useful information
- Elliptical throat structure creates axisymmetric flow, enabling reliable flow rate measurement
- Leak checking and other functions to save energy
High-accuracy mass flow rate measurement
This air monitoring and management flowmeter achieves an accuracy of ±3% of the specified value by arithmetically processing the process changes detected by multivariable sensor at a high speed by applying the gas expansion compensation coefficient and compression coefficient required for calculating the flow rate calculation.
Auto ranging function
In differential pressure type flowmeters, the instantaneous flow rate range needs to be set by calculating the differential pressure generated from fluid conditions including flow rate value. However, the flow rate value of factory air is not known in most cases. The flow meter for air monitoring and management is equipped with auto ranging function that memorizes the maximum flow rate value of the actual flow rate even when the flow rate value is unknown and automatically sets the range.
Wide flow rate range
The flowmeter for air monitoring and management can handle a range up to 100:1 so is an ideal for covering a wide flow rate range. This eliminates worries about a large or small flow rate when selecting a flowmeter whose bore or diameter is the same as that of the factory air pipe.
Enhanced display function
The LCD display on the front face can selectively display the instantaneous flow rate value, total flow rate value, and flow velocity value. The multivariable sensor's pressure value for calculating the compensation can also be shown on the display making it usable as a pressure gauge monitor.
Flexibly adapts to site installation conditions
This flowmeter can be mounted on both horizontal piping (photograph at top of this page) and vertical piping (Photograph 1) in the factory air piping system. A separate type flowmeter (Photograph 2) can be mounted in cases where line-based piping is laid at a height of 3 to 5 meters from the floor in each building.
The flowmeter structure is unlikely to cause deposits and clogging along the flow path and constrictor section; and the required upstream straight pipe length is as short as 0.5D so the flowmeter can be installed in diverse locations.
Functions ideal for energy-saving activities
- Cost display function
During our factory air energy-saving activity, we frequently receive comments from customers saying "everyone thinks that factory air is free." To tackle this issue, we incorporated a function to roughly indicate how much (yen or dollar) the current flow rate costs by setting a factory air unit price. Displaying the cost promotes an awareness of cost issues among the on-site workers. - Leak check function
This function calculates the leakage rate (%) of air based on the pressure inside the pipe, which is measured by a built-in pressure sensor.
Air management, such as patrolling or implementing countermeasures for leakage when a preset leakage rate is exceeded, can be achieved without using a pressure gauge or the like.
