Notes and characteristics of level gauge


Release time:

2020-12-04

The correct selection of the liquid level gauge can ensure the better use of the liquid level gauge. What kind of liquid 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 nature of the measured fluid and the requirements of flow measurement.

  Level gaugeThe correct selection can ensure the better use of the level gauge, and the choice of what type of level gauge should be determined according to the physical and chemical properties of the fluid medium to be measured. MakeLevel gaugeThe path, flow range, lining material, electrode material and output current, etc., can adapt to the nature of the measured fluid and the requirements of flow measurement.

1. Precision functional inspection

Accuracy level and function According to the measurement requirements and use of the occasion to select the instrument accuracy level, to achieve economic and cost-effective, such as for trade settlement, product handover and energy metering occasions. A higher level of accuracy, such as 1.0, 0.5, or higher, should be selected for process control applications. According to the control requirements to choose different accuracy levels, some only to detect the process flow, no need to do precise control and measurement of the occasion, you can choose a slightly lower accuracy level. Such as 1.5 level, 2.5 level, or even 4.0 level, then you can choose a low-cost plug-in.Level gauge.

2. Measurable medium

When measuring the flow rate of the medium, the measuring range and caliber of the instrument to measure the common medium,Level gaugeThe full flow rate can be selected in the range of measuring medium flow rate of 0.5-12 m/s, and the range is relatively wide. The specification of the selected instrument is not necessarily the same as that of the process pipeline, and it should be determined whether the measured flow range is within the flow rate range. That is, when the pipeline flow rate is low and cannot meet the requirements of the flow meter or when the measurement accuracy cannot be guaranteed at this flow rate. The caliber of the meter must be reduced to increase the flow rate in the pipeline and obtain satisfactory measurement results.

Features

Good stability, full degree, zero long-term stability can reach 0.1 FS/year, in the compensation temperature 0~70 ℃ range, the temperature drift is less than 0.1 FS, in the whole allowable working temperature range is less than 0.3 FS.

There are reverse protection and current limiting protection circuits. When the positive and negative poles are connected in reverse during installation, the transmitter will not be damaged. When an abnormality occurs, the transmitter will automatically limit the current to 35MA.

Sturdy structure, no moving parts, high reliability, long service life, easy installation, simple structure, economical and durable.


Key words:

Level gauge


Qidong Hengsheng Instrument Equipment Co., Ltd.

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