Precautions For Level Gauge

The correct selection of the level gauge can ensure the better use of the level gauge. What kind of level gauge should be selected according to the physical and chemical properties of the fluid medium to be measured? The diameter, flow range, lining material, electrode material and output current of the level gauge can be adapted to the measured fluid. Property and flow measurement requirements.

1. Precise function inspection

Accuracy grade and function Select the instrument accuracy grade according to the measurement requirements and use occasions, so as to be economical. For example, for trade settlement, product handover and energy metering, you should choose a higher accuracy level, such as 1.0, 0.5, or higher; for process control, choose different accuracy levels according to the control requirements; some only It is to check the process flow. If you do not need to control and measure, you can choose a lower accuracy level, such as 1.5, 2.5, or even 4.0. At this time, you can choose a cheap plug-in level gauge.

2. Measurable medium

The liquid level gauge measures medium flow rate, instrument range and caliber. When measuring general media, the full scale flow rate of the liquid level gauge can be selected within the range of measuring medium flow rate 0.5-12m/s, and the range is relatively wide. The specification (caliber) of the selected instrument is not necessarily the same as that of the process pipeline. It should be determined whether the measurement flow range is within the flow rate range, that is, when the flow rate of the pipeline is low and cannot meet the requirements of the flow meter or when the measurement accuracy cannot be guaranteed at this flow rate, It is necessary to reduce the diameter of the meter to increase the flow velocity in the pipe and obtain satisfactory measurement results.