Reagent addition, distillation, titration, digestion tube and titration buret waste removing, discharging & washing, calibrating, fault detecting, solution level monitoring, and outcome calculating all can be realized fully automatically. Make the entire experimental process simple and efficient. Standard data-processing software (the control software is also optional).
Features
- Comply with international / national standard, adopt national standard Kjeldahl method: digest sample in concentrated sulphuric acid environment, steam distillation in alkaline environment, boric acid absorption, indicator titration end-point color determination method. Adopt international advanced high-precision high-resolution 16-bit tri-phosphor digital signal color sensor determinate titration end-point method(successfully developed in 2005)..
- Dynamic titration technology (known as distilling while titrating, successfully developed in 2007) could accomplish the distillation, titration and caculation synchronically..
- The visible titration flask make the color change during the titration could be clearly shown..
- In 2007, Sonnen successfully developed the unique auto determining module for nitric nitrogen and high nitrogen..
- Sonnen is one of the drafters of China’s national standard GB/T22923-2008..
- Sonnen is one of the drafters of the China's official standard JJF 109-2012 “Calibration Specification for Nitrogen Analyzer”..
- Adding acid, adding alkali, distillation, titration, calibration, liquid level detection, waste discharging & washing(digestion tube and titration cup), calculation and print can all be realized fully automatically..
- Whole new multicore ARM operating system, 10-inch high definition color touch LCD screen, realtime monitoring and displaying experimental process..
- Multi safety monitoring function: monitoring the safety of safety door, digestion tube, steam pressure, cooling water temperature, distillate temperature, water level of steam generator and lack of water. Ensuring experimental safety..
- High precision titration system, achieve dynamic titration and variable speed titration, could accomplish the distillation, titration, caculation, data transmission synchronically, reduce experimental time by 40%. The external titration cup with protection real time visible and with anti interference capability..
- Multi data output modes. WIFI, RS232/RS485, double USB2.0 interface. Data processing by Word, Excel software..
- The instrument can store 1 million sets of data internally, and the cloud can store unlimited amounts of data. The test results can be represented in 12 ways, including Word, Excel, etc.
- Fourth level permission grading function, using different permissions from program administrator, main administrator, auxiliary administrator, and operator. Built-in time lock&data lock complies with "GLP and GMP" regulations.
- Titration color can be calibrated automatically or manually. The titration endpoint determined by high accuracy 16-bit three primary color digital signal color sensor..
- PTFE (Teflon) bellows pump, acid and alkali resistance and corrosion resistance, Resistance to particle plugging structure, steady liquid addition controled by stepper motor, negative pressure suction without danger..
- PTFE (Teflon) splash-proof bottle, resistance to high temperature and strong alkali, no ammonia leakage, ensure high recovery rate..
- The liquid level detection of bucket ensure no lack of liquid during experiment..
- Capable of detecting trace nitrogen content, accurate to 10ppm.
- Can be paired with a 35 bit automatic sampler to achieve true unmanned operation, effectively reducing personnel occupancy and reducing experimental costs.
- Optional addition of nitrate nitrogen or high nitrogen(the sample nitrogen content higher than 45%) automatic testing module.
Specifications
| Measurement range | 0.1–240 mg N |
|---|---|
| Measurement time | 3–8 min/sample |
| Recovery | ≥99.5% (99.8% in high-nitrogen test mode) |
| Repeatability | ≤0.5% |
| RSD | ≤1% |
| Steam flow rate | 0–100% |
| Titration accuracy | 0.1 µL/step |
| Sample size | Solid ≤6 g / Liquid ≤25 ml |
| User-defined schemes | 5 million |
| Data storage | 1,000,000 sets |
| Connectivity | USB, Wi-Fi, host control, LIMS |
| Auto-sampler interface | Yes (for A20 AutoSampler) |
Applicable standards
GB/T22923-2008JJF 109-2012
Application fields
Food & feed, dairy, soil & agriculture, fertilizer, environmental monitoring and the chemical industry — any method built on Kjeldahl nitrogen / protein determination, across research, teaching and quality-supervision laboratories.