Measurement of external liquid level gauge vertical tank (plasticizer) in a chemical plant in Jiangsu Province

  The main business of a chemical plant in Jiangsu is the production of polyvinyl chloride resin and plastic products, as well as related products, using vinyl chloride as raw material. There are many vertical tanks on site with only one on-site liquid level gauge, and there are no extra measurement holes reserved on the tank top during the initial construction period. Without hot work or tank cleaning, it is impossible to add other high-precision remote monitoring instruments. The issue was not resolved until the customer contacted us through the company's official website.

       The company arranged for professional engineers to visit the site and learned that the storage medium in the on-site tank is dioctyl phthalate (DOP), an organic ester compound commonly used as a plasticizer. Colorless transparent liquid, specific gravity 0.9861, melting point -50 ℃, boiling point 386 ℃ (atmospheric pressure), insoluble in water, soluble in most organic solutions such as ethanol, ether, mineral oil, etc. Oil like liquid with transparent appearance and no visible impurities. Fully meet the requirements of external mounted liquid level gauges for measuring media. Based on the on-site working conditions, use the space at the bottom of the vertical tank discharge outlet to install measurement sensors, achieving non-destructive installation without hot work or shutdown. The recommended selection parameters for on-site tank level gauges are as follows:

Model: SER-YW (explosion-proof type), (two-wire system), (self calibrating)

Probe cable length: 10M

Tank Type: Vertical Tank

Measurement range: 0-10000 mm

Output signal: 4-20 mA DC+HART

Power supply: 24V

Temperature: -50 °~80 ° C

Wiring method: two-wire system

Display resolution: 1mm

Measurement error: ± 0.1% FS

Probe usage environment temperature: -50 ℃ to+80 ℃

Operating environment humidity: 15% to 100% RH

Explosion proof mark: Exd Ⅱ CT6Gb

Liquid level display: LCD display

Calibration equipment: with calibration probe

Protection level: IP67;

Explosion proof grade: Exd Ⅱ CT6Gb;

Installation method: magnetic suction

The instrument has been in use for a long time and is reliable, accurate, and requires minimal maintenance. It is trustworthy!