Double mailing level transmitter L and H meanings
The H, L of the mounting of the double square gauge gauge:
H: high voltage side or positive pressure side
L: low pressure side or negative pressure side
The high and low of the liquid medium in the container is called liquid level, and the gauge of the liquid level is called liquid level meter. The level is one of the position of the position.
Types of liquid level gauges with tunnel vibration, magnestick, pressure, ultrasonic, sound wave, magnetic flap, radar, etc.
Installation requirements for double mala-level liquid level transmitter
The differential pressure transmitter of the RH 3851DP strap remote transmission device is a new transmitter that introduces foreign advanced technology and equipment production. The key raw materials, components and components are from imports, and the whole machine has been strictly assembled and tested. It has the advantages of advanced design principles, complete varieties, and easy installation.
Since the model is fully integrated with the current domestic zui is popular, the two transmitters (Rosemount 3051 and Henghe EJA) have the advantages of the user, so that the user has a refreshing feeling, while with the traditional 1151, CECC and other products can replace directly on installation, with strong versatility and alternative. In order to suggest the continuous improvement and development of the domestic automation, the series of products has been small and exquisite, and the intelligent function with the HART fieldbus protocol has been introduced.
In the selection:
1, is a single-flared single-capillary tube
2. If it is a high temperature device, the medium in the capillary must be high temperature, otherwise it will cause measurement errors.
In installation:
Double Francifier Transmitter is currently applying a wide range of liquid level measuring instruments. Due to the need for process flow, the double mala-level transmitter is often installed at a very bad working condition in the case of economical reasons for economic compulsive pipe materials. The correct or not the level of the liquid level and the conduit is installed directly affects its measured **.
In order to get UHZ, you should pay attention to the following:
1. Prevent the transmitter from being directly in contact with corrosive or overheating;
2. To prevent dregs from deposition in the conduit;
3. The conductors should be as short as possible;
4. The liquid column pressure in the bilateral conductors should be balanced;
5. The conductive pipe should be installed in a place where the temperature gradient and humidity fluctuations, no impact and vibration.
The way to reduce errors is as follows:
1. The conductive pipe should be as short as possible;
2. When the liquid or steam is measured, the conductive pipe should be connected to the flow process conduit, and the slope should be not less than 1/12;
3. When the gas measurement is measured, the conductive pipe should be connected to the process processed pipe, and the slope should be not less than 1/12;
4. The layout of the liquid conductors should avoid highlights, and the arrangement of gas conductors should be avoided;
5. The two conductors should maintain the same temperature;
6. In order to avoid friction, the caliber of the conductors should be large;
7. There should be no gas in a conduit full of liquid;
8. When the isolation is used, the liquid level of the two-side conductors is the same.
9. When cleaning the transmitter pressure interface and the pore hole, trichloride or alcohol should be used in the pores and gently shake, and then the liquid is poured out, so repeated multiple times. Use any appliance to extends into the pores to avoid damage to the sensitive core.
10. Pay attention to the protection transmitter to lead the cable. It is recommended to use metal pipe or overhead when used in industrial site. Do not loosen the sealed nuts of the cable to avoid moisture.
Editor in charge: YYX, read full text
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