1. Non contact online detection, real-time display of ash content, layer thickness, and reference cumulative amount;
2. The measuring arm is extendable and rotatable, suitable for coal conveyors of different widths and easy to maintain and calibrate (automatic rotating type);
3. Equipped with standard test blocks, it can automatically adjust the accumulated drift coefficient of the instrument system;
4. A constant temperature system makes the instrument more stable and suitable for both northern and southern regions;
5. Long distance communication, the instrument and computer host can be separated by more than 1000 meters;
6. Easy to install, only four foot screws are needed to complete the installation.

Low ash coal (ash content<15%), basic error:< ± 0.5%.
Medium ash coal (ash content 15%~30%), basic error:< ± 1.5%.
High ash coal (ash content>30%), basic error:< ± 2.5%.

At present, it has been widely used in industrial coal, coal blending, coal production, export coal testing and other industries such as coal preparation plants, coal mines, thermal power plants, coal coke plants, coal chemical industry, steel plants, cement plants, and civilian coal.