Fertilizer nutrient content detector

Instrument features:

1. It can detect chemical fertilizers, organic fertilizers (including foliar fertilizers, water-soluble fertilizers, spray fertilizers, etc.), quick-acting nitrogen, quick-acting phosphorus, effective potassium, total nitrogen, total phosphorus, total potassium, organic matter, pH, calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, chlorine, silicon, molybdenum and other trace elements and various heavy metals such as lead, chromium, cadmium, mercury, arsenic, nickel, aluminum, fluorine, titanium, selenium, etc.

2. Android smart operating system, using more efficient and humanized operation, the instrument is equipped with wifi network upload, 4G network transmission, GPRS wireless remote transmission, and fast data upload.

3. Built-in crop expert fertilization system, which can calculate the recommended fertilizer amount for the target yield of more than 100 kinds of national agriculture, fruit trees, and economic crops, and scientifically guide agricultural production according to the fertilization formula.

4. Adopting the design of precision rotating colorimetric cell, the consistency of light source is more accurate to ensure the detection accuracy. 12 samples can be quickly detected at one time, which greatly improves the detection efficiency and reduces the detection cost.

5. Built-in plant nutrition diagnosis standard atlas, according to the pictures of nutritional deficiencies of various crops, leaf comparison is carried out to diagnose abundance and deficiency.

6. Adopting high-precision filter technology independent patent analysis method (patent number: ZL 2018 2 1777724.7), the colorimetric tank part adopts standard 1cm colorimetric dish, no mechanical displacement and wear, accurate optical path test positioning, ensuring that the test results are better than national standards.

7. The instrument is equipped with a data receiving platform, no data cable is required, and the data can be directly uploaded to the local area network and the Internet wirelessly, which is convenient for data management and long-term data analysis.

8. The instrument has a built-in new generation of high-speed thermal printer, which can automatically print the test report and QR code after the test is completed.

9. Highly sensitive 7-inch capacitive touch screen, high-definition and high-interactive display, greatly reducing the cumbersome operation and errors of traditional instruments.

10. Each channel is equipped with a four-wavelength cold light source, and all light sources achieve constant current voltage regulation to ensure wavelength stability. Silicon semiconductor is used as a signal receiving system with a life of up to 100,000 hours. Good reproducibility and high accuracy.

11. High-strength PVC engineering plastic suitcase design, durable and easy to carry, AC and DC power supply, can be used for field mobile testing of finished products.

Multiple functions and complete test items:

Fertilizer nutrients: ● Nitrogen, phosphorus and potassium in single fertilizers; ● Ammonium nitrogen, nitrate nitrogen, phosphorus, potassium and biuret in compound (mixed) fertilizers and urea; ● Quick-acting nitrogen, quick-acting phosphorus, quick-acting potassium, total nitrogen, total phosphorus, total potassium, organic matter, various humic acids in organic fertilizers (foliar fertilizers). It can be expanded to detect trace elements such as calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, chlorine, silicon, molybdenum and various heavy metals (lead, chromium, cadmium, mercury, arsenic, nickel, aluminum, fluorine, titanium, selenium).

Technical indicators:

1. Power supply: AC 220±22V DC 12V+5V (vehicle power supply or built-in lithium battery can be selected)

2. Power: ≤5W

3. Range and resolution: 0.001-9999

4. Repeatability error: ≤0.02% (0.0002, potassium dichromate solution)

5. Instrument stability: digital drift within two hours is less than 0.2% (0.002, transmittance measurement). After the instrument is turned on and preheated for 5 minutes, the digital display has no drift within one hour (transmittance measurement), and the digital drift does not exceed 0.2% within two hours (0.002, transmittance measurement).

6. Linear 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. Wavelength range: red light: 680 ± 2nm; blue light: 420 ± 2nm; green light: 510 ± 2nm; orange light: 590 ± 10nm

9. PH value (acidity): (1) Test range: 1 to 14 (2) Accuracy: 0.01 (3) Error: ±0.1

10. Simultaneous, rapid and accurate detection of nutrients such as nitrogen (N), phosphorus (P), potassium (K) in fertilizers

11. Test speed: Test one fertilizer sample (N, P, K) ≤50 minutes (including pre-processing time, no accessories required by the user)

12. Simultaneous test of 5 fertilizer samples ≤2 hours (including pre-processing time)

13. Data printing: built-in new one-button thermal printer

14. Reserved 232 data interface, can be connected to a computer for data transmission.

15. Instrument size: 43×34.5×19cm, main unit net weight: 5.1kg

Test speed:

Test one compound fertilizer sample (N, P, K) ≤50 minutes; each additional fertilizer sample adds 20 minutes.

Test one organic fertilizer sample (N, P, K, organic matter) ≤1.5 hours; each additional sample adds 30 minutes.

Test error:

The test result is the percentage content, the single error of fertilizer is ≤0.5%, and the error of nitrogen, phosphorus and potassium is ≤1%.

Instrument features:

The fertilizer nutrient content tester has full functions: the test items are all domestic and foreign (all kinds of agents can be purchased).

The instrument is fully equipped, integrating medicine, instruments and instruments, and is easy to carry. It is equivalent to a small laboratory. The user only needs to provide distilled water to complete all operations within the required time. It is suitable for agricultural service departments or agricultural material dealers to identify the authenticity of fertilizers, fertilizer manufacturers to control fertilizer production, and agricultural quality inspection departments to crack down on agricultural material counterfeiting, and standardize the agricultural material market.

Reliable performance: The working stability is more than 10 times better than the national standard JJG179-90 index, and the repeatability reaches the index level of grating spectrophotometer.