Northeast Agricultural University purchased a high-precision fertilizer nutrient analyzer from Yin Technology.

Northeast Agricultural University purchased a high-precision fertilizer nutrient analyzer from Yin Technology.

Northeast Agricultural University has purchased a high-precision fertilizer nutrient analyzer from [Company Name].

Northeast Agricultural University was founded in Harbin in 1948, initially named Northeast Agricultural College. It was successively affiliated with the Northeast Administrative Committee's Ministry of Agriculture, the Ministry of Higher Education, the Ministry of Agriculture, the Heilongjiang Provincial Agricultural Commission, and the Heilongjiang Provincial Department of Education. In 1981, it was designated a key provincial university in Heilongjiang Province. In 1994, it merged with the Heilongjiang Provincial Agricultural Management Cadre College to form Northeast Agricultural University.

Technical Specifications of the High-Precision Fertilizer Nutrient Analyzer:

1. Power Supply: AC 220±22V, DC 12V+5V (Built-in 4800mAh high-capacity lithium battery)

2. Power: ≤5W

3. Measurement Range and Resolution: 0.001-9999

4. Repeatability Error: ≤0.03% (0.0003, potassium dichromate solution)

5. Instrument Stability: The instrument requires no preheating; drift is less than 0.3% (0.003, transmittance measurement) within one hour. The instrument displays no digital drift within one hour of power-on (transmittance measurement), and the digital drift does not exceed 0.3% (transmittance measurement) or 0.001% (absorbance measurement) within two hours;

6. Linearity error: ≤0.1% (0.001, copper sulfate detection)

7. Sensitivity: Red light ≥4.5 ×10-5, Blue light ≥3.17×10-3, Green light ≥2.35×10-3, Orange light ≥2.13×10-3

8. Red light: 680±2nm; Blue light: 420±2nm; Green light: 510±2nm; Orange light: 590±4nm

9. Display screen resolution: 1024*600

10. Instrument shock resistance rating: IP65

11. pH value (acidity/alkalinity): (1) Test range: 1～14 (2) Accuracy: 0.01 (3) Error: ±0.1

12. The error of fertilizer single item is ≤0.5%, the error of nitrogen, phosphorus and potassium three items is ≤1%; the error of heavy metal is ≤10%.