1、 Performance characteristics
1. Adopting microprocessor technology, digital circuits, programmed design, microcontroller control, touch buttons, and LCD display.
2. Dual use of AC and DC (in vehicle).
3. Built in thermal printer for storing and printing test results.
4. Using high brightness LED lights as the light source and silicon semiconductors as the signal receiving system, the lifespan can reach up to 100000 hours.
5. The cassette part adopts a dual light source mechanism design, which can achieve multi item detection.
6. The work stability is 6 times better than the national standard JJG179-90 index, and the repeatability reaches the grating spectrophotometer index.
2、 Test items
1. Soil nutrients: alkali hydrolyzed nitrogen, ammonium nitrogen, available phosphorus, available potassium, moisture content (combustion method), pH value (test paper method), etc.
2. Trace elements such as calcium, magnesium, silicon, sulfur, boron, and chlorine in soil.
3. Fertilizer nutrients: total nitrogen, total phosphorus, and total potassium.
3、 Technical parameters
1. Range and resolution: 0.001~9999
2. Stability: Drift less than 0.003 within three minutes
3. Linear error: less than 0.003
4. Repeatability error: less than 0.005
5. Sensitivity: Red light ≥ 4.5 × 10-5 Blue light ≥ 3.17 × 10-3
6. Wavelength range: Red light 620 ± 2nm Blue light 440 ± 2nm
7. Moisture content testing range: 0-100% accuracy: ± 2%
8. The power supply used in this instrument:
A. AC: 180V~240V, 50Hz
B. DC: 12V, 5W (onboard)
9. Combined extraction of nitrogen, phosphorus, and potassium: simultaneous extraction of nitrogen, phosphorus, and potassium from soil can be completed in 3 minutes
10. Testing speed: Measure one soil sample (N, P, K) for ≤ 30 minutes (including pre-treatment time), and simultaneously measure five soil samples for ≤ 50 minutes
11. Seismic resistance: qualified
4、 Easy to operate
Complete supporting facilities: The rapid testing instrument integrates drugs, instruments, and instruments, making it easy to carry, equivalent to a small laboratory, for on-site testing and mobile services. The finished drug is ready to use upon opening, ensuring fast testing speed. Low cost, measuring one nutrient (N, P, K) only costs 3 yuan.
5、 Instrument configuration (1 aluminum alloy password box: 410 × three hundred and ten × 145mm, weighing 4.5kg)
Host, cuvette, straw, set of medication, filter paper, suction ball, measuring cylinder, angle spoon, aluminum box, reaction bottle, power cord, PH test paper, etc.
