The Instrument features microwave module to measure the moisture content and γ photon module to measure the ash content. The microwave will be emitted from the instrument while part of the microwave will be reflected back. The microwave which is reflected back is in proportion with moisture content or related with moisture/water content inside the coal; the microwave reflected back will be detected by sensor and then be transferred into electrical signal. The signal will be calculated by the microcomputer and finally get the moisture content of coal sample.
γ photon module which can emit low energy γ photon; the γ photon which is reflected back is in ratio with the ash content – when the ash content is higher, the strength is weaker and vice-versa. According to this principle, the microcomputer will calculate out the ash content according the signal got from sensors.
Model | PGA-01 |
Ash Content Accuracy |
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While ash content | ≤ 20%, absolute error ≤ ±1% |
While | 20 % < ash content < 40, absolute error is 2.5% |
While ash content | ≤ 40%, absolute error ≤ ±4.0% |
Test limit: ash content | ≤ 5% |
Water/Moisture Measurement Range | 0.01%~15%, Accuracy: ±1.0% |
Measuring period | 30s |
Weight | 3Kg |
Data saving | for calibration as well as result |
Operation temperature | 10°C~+50°C |
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