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Address
Room 439, 4th Floor, Building 3, No. 18 Jinxing Road, Daxing District, Beijing
Beijing Likaile Technology Development Co., Ltd
Room 439, 4th Floor, Building 3, No. 18 Jinxing Road, Daxing District, Beijing
Nitrogen (N) element control management
The nitrogen (N) element plays a very important role in the growth process of crops.
For growers, knowing the nitrogen requirements of crops allows them to control the supply of nitrogen fertilizer in the appropriate amount.
Some experiments have shown that,SPAD-502Plus chlorophyll meterOn the premise of ensuring that crop yields do not decrease, it can help reduce nitrogen fertilizer usage by 10%.
Controlling the amount of nitrogen fertilizer in farmland to * can reduce crop diseases and environmental pollution that may be caused by excessive use of nitrogen fertilizer.
More and more people have begun to realize the pollution caused by excessive use of nitrogen fertilizer on lake water and groundwater, and have begun to recognize the importance of moderate use of nitrogen fertilizer.
In the current and future development of nitrogen fertilizer application technology, it is playing an increasingly important role.
●Trend chart display: The trend of multiple sets of measured data will be displayed in the chart, and those data with significant differences can be easily identified and valued for analysis.
●Lightweight and easy to carry: The SPAD-502Plus has a compact body and weighs only 200g, making it easy to fit into a pocket and take to the field for measurement.
●Quick and easy measurement: Simply insert the leaves and close the measuring probe during measurement, without cutting off the leaves. This allows for monitoring of specific leaves throughout the crop growth process, resulting in more scientific analysis results.
●Waterproof function: The SPAD-502Plus has a waterproof function (IPX-4), which allows for outdoor measurement work even on rainy days.
*Do not immerse the instrument in water or clean it directly with water.
●Low battery consumption: The SPAD-502Plus uses LED lighting sources, which greatly reduces battery consumption. A set of 2 AA batteries can perform approximately 20000 measurements.
●Small measurement area: The actual measurement area is only 2 x 3mm, even small blades can be measured. Moreover, the depth adjustment device can accurately position and measure even small blades.
●High precision: High precision (± 1.0 SPAD) measurement, even crops with similar growth environments can be measured and analyzed for classification.
●Data storage: SPAD-502Plus can store up to 30 sets of measurement data in memory and can delete or restore the most recent measurement data. In addition, the instrument can automatically calculate the average value of all data for reference.
●Reading detection: Reading detection allows customers to check whether the SPAD-502Plus is working properly on their own to ensure accurate measurement data is always obtained.
Minolta Chlorophyll AnalyzerTechnical Specifications:
| model | Chlorophyll meter SPAD-502Plus | |
| measurement object | Crop leaves | |
| measurement method | 2Optical density difference at one wavelength | |
| measurement area | 2 ×3 mm | |
| sample thickness | zui大1.2 mm | |
| Sample insertion depth | 12 mm(The depth adjustment device can be used to adjust the position to 0-6mm) | |
| light source | 2A LED light source | |
| sensor | 1An SPD (silicon photodiode) | |
| display | LCDScreen display, 4 decimal places, trend chart | |
| display range | -9.9 - 199.9 SPADunit | |
| memory | 30Group measurement data, capable of calculating/displaying the average value | |
| power supply | 2Jie Wu Battery | |
| battery life | About 20000 times | |
| Zui small measurement interval | About 2 seconds | |
| precision
| ±1.0 SPADUnits (0.0-50.0 SPAD units, at room temperature and humidity) When the SPAD exceeds 50.0 units, an "*" will be displayed | |
| repetitiveness | ±0.3 SPADWithin the unit | 0.0-50.0 SPADThe measurement position remains unchanged |
| reproducibility | ±0.5 SPADWithin the unit | |
| temperature drift | ±0.04 SPADWithin the unit/° C | |
| Operating temperature/humidity range | 0 - 50°CRelative humidity within 85% (35 ° C), no condensation | |
| Storage temperature/humidity range | -20 - 55°CRelative humidity within 85% (35 ° C), no condensation | |
| Size | 78 (Width x 164 (length) x 49 (height) mm, 200 g | |
| other | Warning sound, user coefficient compensation | |
| Standard Accessories | Deep braking, hand rope, 2 No. 5 batteries, soft pack, inspection certificate | |