What is the shift meter?
To measure and control the speed at which fluid or gas moves, a positive shift meter is used. For example, the flow meters are used in medical devices that control chemical or medicines or in food processing facilities that require systematic accuracy. The flow meter is divided by gas or liquid measured into individual packets with the same volume, called land that counts when they pass through the meter. The displacement meter has two main parts: a chamber that stops the flow of gas or liquid and a mechanism that allows you to go through only a specific amount at a time. The flow of gas or fluid through the displacement meter depends on how many land it can pass at once.
There are two main types of a positive shift meter. The first is called the flow meter only the sensor only. This type of shift meter is a switch type that releases a certain volume of liquid or gas without additional information. The second type of meter is considered a complete sensor system. And fromAhrins the user interface or display that provides more information about operating pressure, fluid density or gas and the percentage of the device. Some shift flow meters may also include alarms or information on the history of the flow.
The measuring part of the shift meter can work with different technologies. The gearbox meters use the rotating, projecting gears to turn the valve at the same intervals, so that the correct size and volume flows through. In fact, vortex meters calculate the speed of gas or liquid by determining how often pieces of test material plunge into the flow. The most common type of shift meter uses a device called disk meter. In these measuring flux, the plot pressure rotates the disk inside the meter and the counter monitors how many rotations the disc has formed as a means to control the flow.
positive shift flow meters are available both in analog and DigiTalt models. Analog models may have output signals in sinus wool, pulse wave or AM or FM frequency. Digital models are usually produced with a recommended standard of 232 (RS232), RS422 or RS485 protocols. There is also a model of parallel protocol with a bus for an interface (GPIB) with a general purpose.