The RF2500 online raw grain frequency conversion radar moisture meter is a product independently developed by Changlu Company, suitable for online measurement of material moisture content in the grain and oil raw material industry. The existing methods for measuring grain moisture are offline and cannot be continuously measured online. However, the RF2500 moisture meter can quickly and continuously measure moisture on the production line, achieving online dynamic real-time detection with fast response time and real-time control of product moisture content.
Continuous measurement, online dynamic real-time detection
Continuous and online measurement, directly involved in automatic control
Low emission energy, will not change the properties of the material, safe and reliable
Not affected by environmental dust and water vapor factors. Strong anti-interference ability
Not affected by material color changes and sunlight exposure
The measurement is the total water (the sum of surface and internal moisture of the tested material), and the test results are more representative
Can transmit 4-20mA and RS485 signals in real time, connect to central control systems such as PLC and DCS, and better grasp test data in real time
The RF2500 online raw grain frequency conversion radar moisture meter can measure the moisture content of materials in the grain and oil raw material industry, including soybean, peanut, corn, rapeseed and other oil crops, as well as sorghum, rice, wheat and other grains and seeds.

project | parameter |
measurement range | 0-50% |
accuracy | Depending on the application, it can generally reach 0.2~0.3%; Or 5% of the measuring range |
repetitiveness | ±0.2% |
Material flow rate | 1800kg/hour~10000kg/hour |
Material particle size | Less than 15mm |
ambient temperature | 0-50℃ |
ambient humidity | ≤90% |
response time | 1s |
power supply | AC220 ± 15% |
power | MAX 30W |
size | 560mm (length) x 540mm (width) x 1300mm (height) |
| material | The material contact part is made of stainless steel |
weight | 40Kg |

Official account

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After-sales service::0756-8150114
Sales telephone::400-7808-806
HR Email::hr@longtec.com
Email::marketing@longtec.com