SDB-Q3S Soil Nutrient Tester

Description

Application
1. Soil nutrients: alkalolytic nitrogen, nitrate nitrogen, ammonium nitrogen, available phosphorus, available potassium, organic matter, total nitrogen, total phosphorus, total potassium, pH, etc.
2. Trace elements: boron, manganese, iron, copper, calcium, magnesium, sulfur, chlorine, zinc, silicon, etc.
3. Fertilizer nutrients: humic acid, organic matter, total nitrogen, total phosphorus, total potassium.
4. Plant nutrients: nitrogen, phosphorus, potassium in the plant.

Main technical specifications
1. Power supply:
(1) AC220V±10%, 50Hz (2) DC12V, 5W; vehicle-mounted
2. Measuring range: 0.001 to 9999
3. Stability: A (absorbency of light) <0.003 within 3 min
4. Repeatability error: A (absorbency of light) <0.005
5. Wavelength range:
(1) Red light: 680 ± 2 nm
(2) Blue light: 420 ± 2 nm
(3) Green light: 510 ± 2 nm
(4) Orange light: 590 ± 2 nm
6. Sensitivity:
(1) Red light: ≥ 4.5 × 10-5
(2) Blue light: ≥ 3.17 × 10-3
(3) Green light: ≥ 2.35 × 10-3
(4) Orange light: ≥ 2.13 × 10-3
7. pH measuring range: Range 1 – 14; accuracy: ±0.1
8. Measurement time: (for soil N, P, K)≤30 min 5pcs soil samples at one time ≤50 min (including pre-treatment time)

Main technical features
1. Microprocessor with SCM control technology. Programmed design and LCD display.
2. Can be used in either AC or DC power supply.
3. Filters are used as light sources. Silicon semiconductor is adopted as signal receiving unit. The lifetime is up to 100,000 hour.
4. The dark chamber adopts a multi-light source design, which can realize measurements various of projects.
5. There is an automatic temperature correction function for the test of available phosphorus.
6. A built-in micro printer is equipped for data printing.