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Specifications
Fertilizer nitrogen, phosphorous, potassium,total nitrogen,total phosphorus,total potassium,organic matter in the organic FertilTester for Soil Fertilizer
introduction
alkali hydrolyzable nitrogen,ammonium nitrogen,phosphorus,potassium,organic matter,total nitrogen,moisture in the soil . N,P,K in the single fertilizer and complex (mixed) fertilizer,ammonium nitrogen,phosphorus,potassium in urea , and it can test available nitrogen,available phosphorous,available potassium,total nitrogen,total phosphorus,total potassium,organic matter in the organic fertilizer .
Performance Index :
1. Power : 220V±22V .
2. Measuring range and accuracy
9999 , accuracy : 1
999.9 , accuracy : 0.1
99.99 , accuracy : 0.01
9.999 , accuracy : 0.001 .
3. Resolution : 0.001 – 9999 .
Repeatability : ≤ 0.5 ( potassium dichromate solution )
4. Instrument Stability : ≤ 0.5 ( transmittance measurement ) . Transmittance number drift is not more than 0.5% (T) or 0.003 (A) within 3 minutes after powering on .
5. Sensitivity : Red light ≥4.5× 10-5 ; Purple light ≥3.17 × 10-3
6. Wavelength and Range : Red light : 680±3nm ; Blue light : 420±3nm ; Orange light : 590±3nm .
7. Linear error : ≤3% ( testing in copper sulphate solution ) .(Absorbance range : 0.1 – 0.3 , linear error ≤±8% ; Absorbance range : 0.3 – 0.6 , linear error ≤±4% ; Absorbance range : 0.6– 0.8 , linear error ≤±6% .
8. Power consumption : 5 W .
9. It can finish extractant by our exclusively developed joint extractant ( patent ) within 5 minutes , time for testing one sample ( N, P, K) is about 40 minutes , time for testing fertilizer,hydrolyzable nitrogen,ammonium N,P,K in the soil is about 1 hour (including preparing sample time ) , Pharmacy is compliant .
10. It can correct tested datas when testing available phosphorus according to environmental temperature .
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