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1. Adjustment coefficient of turbine flowmeter
The instrument coefficient adjustment of turbine flowmeter is the core link to ensure its measurement accuracy, usually requiring the use of standard equipment calibration and parameter modification through hardware or software. 1. Coefficient meaning: The instrument coefficient of a turbine flowmeter represents the number of pulses generated per unit volume of fluid passing through it, usually measured in times per liter or times per cubic meter. This value is closely related to the mechanical structure, fluid properties, and pipeline installation conditions of the flowmeter, and is the basic calibration parameter for flow calculation.
2. Adjustment method: Hardware adjustment: Some conventional models are achieved through physical adjustment, such as using a tool to rotate and turn an internal potentiometer to change the resistance value, and adjust the pulse output frequency accordingly.
. This type of operation requires professional personnel to avoid accidental contact with precision components. Software adjustment: Contemporary intelligent flow meters mostly support digital settings, which can be accessed through the surface cleaning hand board button or connected to a computer programmer to enter the parameter menu and directly input the calibrated new coefficient value and save it.
3. Operation steps: First, prepare the standard flow detection equipment (such as the volumetric method calibration device) and parallel the flow meter to be calibrated; Subsequently, multiple testing points were selected within the 20% -100% flow range, and the measured flow values of the standard equipment and the number of turbine flow meter pulses were sync
2. Not very familiar with turbine flow meters and not knowing how to choose, seeking selection methods
In the various instrument product inquiries we receive, the proportion of inquiries about selection is very high. Indeed, industrial instruments seem simple, but if we delve deeper, it is still somewhat difficult. Generally, friends who do not have enough professional knowledge or experience find it difficult to quickly and effectively choose an instrument that suits them. It takes a lot of time and effort, and there are still many cases of choosing the wrong one. In order to help everyone avoid detours, today we take turbine flow meters as an example and organize several important dimensions that will be used in selection. As long as we choose around these elements, we can quickly find a suitable turbine flow meter. The usage environment of accuracy turbine flowmeter generally has high requirements for measurement accuracy, whether it is measuring gases or some low-temperature liquids. Therefore,