KEYILE 科译勒 KDPFDM30/31/32 DIFFERENTIAL PRESSURE DENSITY METER

• This two-wire transmitter features an integrated structure with no moving parts, simplifying maintenance.
• It has a five-digit LCD display.
• This domestically produced differential pressure transmitter can be temperature compensated, making it suitable for media with large temperature variations.
• It is easy to install and use; simply fill it with liquid to display the reading.
• It can be used with fluids or still liquids.
• It allows for custom density units, facilitating industry-standard density conversions.
• It provides continuous online measurement of liquid density without interruption, making it directly applicable to production process control.
• The diaphragm is made of high-quality materials such as 316L, Hastelloy C-276, Monel, and tantalum, ensuring hygiene and excellent corrosion resistance.

Differential pressure intelligent online density meters can measure the density of various liquids or liquid mixtures online. They are mainly used in the petroleum industry, oil refining industry, chemical industry, food industry,biopharmaceutical industry, environmental monitoring, and mining industry.

WORKING PRINCIPLE

Differential pressure series online density(concentration) sensors are based on Archimedes' principle: P=ρgh, meaning the static pressure of a liquid column at a certain height is directly proportional to the density of the liquid. Therefore, the density of the liquid can be measured by the static pressure value measured by a pressure measuring instrument. The detection end uses a diaphragm pressure measuring element to directly measure the static pressure value to convert it into the density value of the medium. The differential pressure series of online density (concentration) sensors adopts advanced detection technology. Its main components include: a pair of high-precision differential pressure sensors and a pair of pressure-sensitive diaphragms that are in direct contact with the liquid. There is a temperature sensor between the two diaphragms to compensate for the temperature change of the measured liquid. The density of the medium is then calculated by dedicated software.

PRODUCT SERIESII
                                                                                                                                                                                                                                  

TECHNICAL PARAMETERS
                                                                                                                                                                                                                                  

EXTERNAL DIMENSIONS DRAWING (FOR REFERENCE)
                                                                                                                                                                                                                                  

PRODUCT INSTALLATION
                                                                                                                                                                                                                                  

illustrate:

Determine the flange size. Common flange sizes are DN50, DN65, and DN80; The center-to-center distance between the two sensor diaphragm boxes needs to be at least 500mm. The default is a 500mm spacing; For direct-insertion type, confirm the distance between the center of the upper diaphragm box and the bottom of the flange (i.e., point A).