The liquid level meter chooses correctly to guarantee the liquid level meter to use better. What type of liquid level meter should be chosen according to the physical and chemical properties of the fluid being measured? The size of the liquid level meter, flow range, lining material, electrode material and output current, etc. can be adapted to the nature of the measured fluid and flow measurement requirements.
1. Precision function Check
Precision grade and function according to the measurement requirements and use of the instrument to choose the accuracy of the level of precision, cost-effective. For example, for trade settlement, product handover and energy metering occasions, should choose a higher level of precision, such as 1, 0.5, or higher grade; For the occasion of Process control, according to the control requirements of the selection of different levels of accuracy, some just check the flow of the process, no need to do precise control and measurement of the occasion, you can choose a slightly lower precision level, such as 1.5, 2.5, or even 4, then you can choose the low price of the inserted liquid level meter.
2. Measurable media
When measuring medium flow rate, instrument range and aperture measure general medium, the full degree flow of the liquid level meter can be selected in the range of measuring medium velocity 0.5-12m/s, and the range is wide. Select the instrument specification (caliber) not necessarily the same as the process pipe, whether the measured flow range is determined within the velocity range, that is, when the pipeline velocity is low, can not meet the flow meter requirements or the measurement accuracy at this velocity can not be guaranteed, it is necessary to reduce the instrument aperture, so as to improve the flow rate in the pipe, obtain satisfactory results.