Methods to Measure Low-Density Solid Levels

Solids media have different characteristics and measuring the level of solids can be challenging. This technical note outlines the most important areas for consideration when measuring level on low-density bulk solids.

The substance with less than 0.3g/cm³ bulk density is called a low-density substance. The bulk density is therefore an important selection parameter for point level measurement.

Different materials possess different characteristics. Silicon dioxide is the main material in the white carbon black industry，the powder is extremely light and fluffy.

Some clients have attempted to use Rotary Paddle Switches to monitor low-density materials, but failed. However, we recommended to use Fork-11 Tuning Fork Level Switch, which successfully handles lightweight media applications that are difficult to measure or detect like fine low-density media with density of 0.008g/cm³. Fork-11 offers maximum reliability in a wide application range, as well as in the carbon black industry.

For particle foam molding machine manufacturers, the machine is the core equipment in molding production. The machine is mainly used for the pre- foaming processing of expandable polystyrene EPS, polypropylene EPP foam plastics and other products. The foamed media is very adhesive and the density is as low as 0.008/cm³.

The probe of Fork-11 Tuning Fork Level Switch is based on a tuning fork harmonic resonance. It utilizes piezoelectric devices to drive the fork to vibrate and detect the changes of vibration.

By reasonably increasing the area of tines and precisely adjusting harmonic resonance, Jiwei Fork-11 Tuning Fork Level Switch offers great reliability and sensitivity. Therefore, it makes Fork-11 the best level switch for ultra-low-density media, as well as preventing bridging and buildup of material on the sensor.　

Now, Fork-11 Tuning Fork Level Switch has been successfully applied to foam performance machines, forming machines and blister machine hoppers for large domestic manufacturers in Guangzhou, Hangzhou, Dongguan, Jiangsu, etc. Its reliable and stable performance has been widely praised by the users and has a good reputation in the industry.