| The TFWV2 soil nutrient and moisture comprehensive analyzer is an improved version of the TFW2 model. This instrument can not only accurately measure the content of nitrogen, phosphorus, potassium, and organic matter in soil, but also perform real-time online continuous measurement and rapid measurement of soil acidity, salinity (conductivity), other trace elements, soil temperature, and soil volumetric moisture content. Additionally, fertilizers can also be tested. For the convenience of field operations without AC power, the instrument is equipped with high-quality rechargeable batteries, which can provide stable DC power for about 12 hours after being fully charged. Eliminating the worry of no electricity. In the photoelectric colorimetric analysis section, the instrument is equipped with logarithmic output according to the national standard 90214274 · 7. In the formation of logarithmic curves, the machine is specially designed with a direct adjustment knob, which can avoid the trouble of drawing curve graphs when using a general spectrophotometer for photoelectric colorimetric analysis; The concentration values of various substances can be directly measured and read from this machine. This instrument can be used for various conventional colorimetric, pH value, conductivity, temperature measurements in agriculture, forestry, animal husbandry, industry, medical and health, teaching experiments, and other fields. It can also be used for rapid measurement of soil nutrients and moisture in the field, making it versatile, convenient, and intuitive. It is one of the equipment used by relevant laboratories, agricultural science institutes, soil and fertilizer stations, as well as grain, cotton, vegetable, fruit, flower and other planting farmers. | | | Technical Parameter 1. Digital display 2. Optoelectronic colorimetric wavelength range: 410-750nm. 3. Test sensitivity: ± 0.01 4. Test accuracy: Soil phosphorus: ± 1ppm Soil nitrogen: ± 5ppm Soil potassium: ± 5ppm PH value: ± 0.02PH (measurement range: 0-14PH) Conductivity (salt content): (10 μ s-100 μ s; 2ms-10ms) ± 0.5% （2μs－10μs；0.1ms－2ms）±1%. Temperature: ± 0.2 ℃ (measurement range -10 ℃ to+50 ℃) Moisture content: 0-50% (m3/m3）Within ± 2% (m) of the range3/m3） 5. Soil moisture sensor measurement area: 90% of the influence is within a cylinder with a diameter of 3cm and a length of 7cm around the central probe. 6. TDR-3 soil moisture sensor: ① 4 probes x 7cm (length) ② The sealing material is ABS engineering plastic ③ The probe material is stainless steel 7. Filter: Blue: wavelength 440nm, specification 18 × 14 × 5 (mm) Green: wavelength 500nm, specification 18 × 14 × 2 (mm) Red: wavelength 650nm, specification 18 × 14 × 5 (mm) Red: wavelength 620nm, specification 18 × 14 × 5 (mm) 8. Colorimetric dish: Optical diameter: 10mm 9. Usage environment: temperature+5 ℃~+40 ℃; Humidity ≤ 85% RH 10. AC power supply: 220V ± 10% 11. DC power supply: 12V/1.2AH × 2 rechargeable batteries 12. Rotating colorimetric tank, capable of holding 6 colorimetric dishes simultaneously 13. Power: 20W 14. Volume: 335 × 266 × 175 (mm) 15. Weight: 7kg | |
