Multifunctional Reflectometer for Testing Plants
I . Model : YN-FS
II . Components :
Reflectometer is formed of light source with multi-Wavelength, multi-channel optical path, test strip holder, reflection plate, circuit board, displaying instrument, battery box; YN-FS include communication cable, AC power cable, box for test strip, instrument for pressed juice, standard resolution for calibration , etc .
III . Performance indicator :
1. Detecting items : Nitrate and Nitrite for plants .
2. Main technical index :
Stability : Numer change for 3 wavelength calibration is not more than 1% when continuous empty scan for 5 times .
Sensitivity : 0.01+0.001 .
Linear error : ≤10% .
Repeatability error for test : RSD ≤3% .
Wavelength for Green light : 550nm+5nm .
Wavelength for Red light : 650nm+5nm .
Near-infrared wavelength : 850nm+5nm .
Applicable width for test strip : 5+0.2mm .
Linear range : 10 – 50μg / ml (nitrate); 4 – 30μg / ml ( nitrite ) .
Relative standard deviation for test : < 3% .
Quantitative detection time for test stripe ( it don’t include time for preparing sample ) : 1 minute .
The instrument has functions such as automatic alarm、man-machine dialogue、, transfering datas to computer and so on .
3. Numer for working wavelength : Dual-channel , 6 optical path, it can supply 4 working wavelength, 2 reference wavelegth .
4. Numer for testing items : 2 – 4 items for one instrument .
5. Power Voltage : 9V for DC , the instrument include rechargeable battery .
6. Power consumption : 300 mW .
7. Capacity for data storage : 200 groups .
IV . Size and Weight :
1. Size : 220mm x 110mm x 45mm .
2. Weight : 0.5 kg .
VI . Testing speed :
It can test nitrate and nitrite within 1 minute in sample .