法蘭式液位計_差壓液位變送器零點調校,是做為西安華恒儀表自主生產的
Flange level gauge_ Zero point adjustment of differential pressure liquid level transmitter is independently produced by Xi'an Huaheng Instrument Co., Ltd
液位變送器是國內液位測量比較常用的一種變送器，它結構簡略，便于裝配，
Liquid level transmitter is a kind of transmitter commonly used in liquid level measurement in China. It has a simple structure and is easy to assemble,
在液位變送器夏日發生冰凍時,裝配在室外的變送器必需采用防凍措施,防止引壓口內的液體因結冰體積壓縮,導至傳感器損壞。接線時,將電纜穿過防水評論辯論(附件)或繞性管并擰緊密封螺帽，以防雨水等經過過程電纜滲漏進變送器殼體內。
When the liquid level transmitter is frozen in summer, the transmitter assembled outdoors must adopt anti freezing measures to prevent the liquid in the pressure tap from compressing due to the frozen volume and leading to the sensor damage. When wiring, put the cable through the waterproof comment debate (accessory) or winding pipe and tighten the sealing nut to prevent the rain water and other cables from leaking into the transmitter shell.
法蘭式液位計_差壓液位變送器在壓力傳輸過程中，可能引起誤差的原因如下：
Flange level gauge_ In the process of pressure transmission of differential pressure level transmitter, the possible causes of error are as follows:
1、泄露;
1. Leakage;
2、磨損損失(特別適用潔凈劑時);
2. Wear loss (especially for detergent);
3、液體管路中有氣體(引起壓頭誤差);
3. There is gas in the liquid pipeline (causing pressure head error);
4、氣體管路中存有液體(引起壓頭誤差);
4. There is liquid in the gas pipeline (causing head error);
5、兩邊導壓管之間因溫差引的密度不同(引起壓頭誤差)。
5. The density caused by the temperature difference between the pressure pipes on both sides is different (causing head error).
液位變送器廠家的選型樣本，確定法蘭標準，法蘭尺寸，法蘭壓力級別和法蘭形式。多的是DIN標準和ANSI標準。投入式液位變送器是基于所測液體靜壓與該液體高度成正比的事理，采用疏散硅或陶瓷敏感元件的壓阻效應，將靜壓轉成電旗子燈號。顛末溫度補償和線性校正。轉換成4-20mADC標準電流旗子燈號輸出。
Type selection sample of liquid level transmitter manufacturer to determine flange standard, flange size, flange pressure level and flange form. Many are DIN standards and ANSI standards. Based on the principle that the static pressure of the liquid measured is directly proportional to the height of the liquid, the input liquid level transmitter adopts the piezoresistive effect of evacuated silicon or ceramic sensitive elements to turn the static pressure into the electric flag light. After temperature compensation and linear correction. Convert to 4-20madc standard current flag light output.