Fertilizer Nutrient Tester

Characteristic:

★ The patented design of the integrated aluminum alloy chassis/medicine box is easy to carry, sturdy and durable, and comes with testing methods and finished medicines.

★ Microcomputer control, digital circuit, programmed design, LCD display, AC/DC dual-use, test data can be stored and queried, can be tested in the field, greatly reducing operator errors and labor intensity.

★ Resolution: 0.001, touch sensitive buttons, built-in next-generation thermal printer, capable of printing test results.

★ It can detect the content of available nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus, total potassium, organic matter, acidity and alkalinity, various medium and trace elements such as calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, chlorine, silicon, molybdenum, as well as various heavy metals such as lead, chromium, cadmium, mercury, arsenic, nickel, aluminum, fluorine, titanium, selenium, etc. in fertilizers, organic fertilizers (including foliar fertilizers, water-soluble fertilizers, spray fertilizers), and biological fertilizers.

★ Adopting high brightness LED light source and filter processing to ensure stable wavelength of the light source, silicon semiconductor is used as the signal receiving system with a lifespan of up to 100000 hours. The light source is stable, with good reproducibility and high accuracy.

The colorimetric groove adopts a single channel design, with no mechanical displacement or wear, and the optical path testing positioning ensures the accuracy of the measurement results.

Multi functional and complete testing items: 

Fertilizer nutrients: ● Nitrogen, phosphorus, and potassium in elemental fertilizers; Ammonium nitrogen, nitrate nitrogen, phosphorus, potassium, and urea in compound (mixed) Hefei and urea;

Organic fertilizer nutrients: ● Organic fertilizers contain available nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus, total potassium, organic matter, various humic acids, trace elements (calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, chlorine, silicon, molybdenum), as well as various heavy metals (lead, chromium, cadmium, mercury, arsenic, nickel, aluminum, fluorine, titanium, selenium).

Technical indicators: 

1. Power supply: AC 220 ± 22V DC 12V+5V (can be powered by a car power supply or choose the instrument's built-in lithium battery)

2. Power: ≤ 5W

3. Range and Resolution: 0.001-9999

4. Repeatability error: ≤ 0.3% (0.003, potassium dichromate solution)

5. Instrument stability: Drift less than 0.2% within three minutes (0.002, transparency measurement). After preheating the instrument for 5 minutes, there is no digital drift displayed within two minutes (transparency measurement), and the digital drift does not exceed 0.3% within five minutes (transparency measurement); The digital drift within 20 minutes shall not exceed 0.5% (for transparency measurement) and 0.001 (for absorbance measurement); The digital drift within thirty minutes shall not exceed 0.7% (for transparency measurement) and 0.002 (for absorbance measurement).

6. Linear error: ≤ 1% (0.01, 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 ± 4nm

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

10. Data printing: Built in new one click thermal printer

Test speed:

Test a compound fertilizer sample (N, P, K) for ≤ 50 minutes; For every additional fertilizer sample, the time increases by 20 minutes.

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

Test error:

The individual error of fertilizer is ≤ 1%, and the total error of nitrogen, phosphorus, and potassium is ≤ 2%.

Instrument features:

Full functionality: All testing items are available (various types of drugs can be selected).

Fully equipped: This instrument integrates medicine, equipment, and instruments, making it easy to carry and equivalent to a small laboratory. Suitable for agricultural service departments or agricultural material distributors, fertilizer manufacturers to conduct soil testing and fertilization, and to identify the authenticity of fertilizers.

Easy to operate and fast, the finished medicine can be used immediately after opening the bottle, without the need for configuration.

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