Introduction
Fully-automatic Kjeldahl Analyzer conducts titration and distillation simultaneously so as to neutralize the ammonia gas released which enhance the test efficiency and avoid the overflow of ammonia. It stand with a measuring range from 0.1 to 200 mgN which gives a maximum recovery of ≥ 99.5 %. The operating ambient temperature of the device starts from 10 °C to 35 °C. 8.0-inch touch screen is used to set the distillation time, the amount of diluent, acid liquor and alkali. Diaphragm pump is used to add reagent so that the injure caused by high pressure pump can be neglected. Wireless network modules is installed for realizing remote data transmission to test data processing and report printing.
This kjeldahl systems is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.Applications
Fully-automatic Kjeldahl Analyzer is widely used in many applications such as determination of ammonia nitrogen, protein determination, nitrogen content, nitric nitrogen, phenols, volatile acids, cyanides, alcohol content and so on.
Specifications
| Measurement Range | 0.1 to 200 mgN | ||||||||
| Function | Automatic test module of conventional Nitrogen | ||||||||
| Recovery Rate | ≥ 99.5 % | ||||||||
| Sample | Solid ≤ 5 g liquid ≤ 25 ml | ||||||||
| Distillation Time | 3 to 8 min / sample | ||||||||
| Distillation Mode | Conventional distillation mode | ||||||||
| Distillation Power | 375 W to 1500 W | ||||||||
| Condensate Water Consumption | ≥ 1.5 L / min | ||||||||
| Titr1ation precision | 1 | ||||||||
| Repeatability | ≤ 0.5 % | ||||||||
| Stored record | 5000 | ||||||||
| Automatic Function | Automatic sample dilution, addition of acid and alkali, distillation, reaction cup emptying and cleaning; auto correction, calculation and printing. Several conventional methods are equipped. | ||||||||
| Result Determination | Determined by the terminal color | ||||||||
| Safety Protection Function |
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| Optical sensor | programmable optical sensing technology | ||||||||
| Display mode | 8.0-inch touch screen | ||||||||
| Titration mode | High-precision micro-metering pump | ||||||||
| Way of distillation | Distillation and titration are carried out simultaneously | ||||||||
| Steam flow | Adjustable | ||||||||
| Operating Ambient Temperature | 10 °C to 35 °C | ||||||||
| Language | English | ||||||||
| Power | AC 220 V AC ± 10 % 50 Hz | ||||||||
| Rated Power | 1500 W | ||||||||
| External Dimension | 360×460×680 mm | ||||||||
| Communication Mode | (Enhancement Mode) Network Interface RS232 interface / interface | ||||||||
| Weight | About 20 kg |
Features
Ammonia gas released is neutralized to avoid the overflow of ammonia gas and it enhance the test efficiency
For improving precision and reducing cleaning work, traditional syringe plunger pump is replaced by a high-precision micro-metering pump
Imported color sensor technology eliminates the disturbance of ambient light and an accurate judgment
Digestion duct, makes it more convenient for users to operate
To neglect the injure caused by high pressure pump, diaphragm pump is used to add reagent
8.0-inch touch screen to set the distillation time, the amount of diluent, acid liquor and alkali
Wireless network modules for remote data transmission, data processing and report printing
processor with built-in Flash chip and equipped with a file system, enables user to create or delete folders or files and store 1000 routine data
All-stage warning system is installed which alters users for any abnormal working condition at any time
Real-time display of titration curve, informs the user about the working condition at any time
Built-in mini printer; to print experimental data according to their need
FAQs
1. What are the key factors to consider when selecting this kjeldahl systems for laboratory use?
When selecting this kjeldahl systems, key factors include: 1) The instrument's precision and accuracy to meet experimental requirements; 2) Compatibility with the types of samples and applications you will be working with; 3) Ease of use and maintenance requirements; 4) Safety features to protect operators and samples; 5) Calibration and certification requirements; 6) Cost-effectiveness and long-term reliability; 7) Technical support and service availability from the supplier. Evaluating these factors ensures that the instrument meets your laboratory's specific needs.
2. How often should this kjeldahl systems be calibrated to ensure accurate results?
It is recommended to calibrate this kjeldahl systems at least once every 6-12 months under normal usage conditions. More frequent calibration (every 3-6 months) may be necessary if: 1) The instrument is used continuously for extended periods; 2) It is exposed to harsh environmental conditions (temperature fluctuations, humidity, dust); 3) It is used for critical applications requiring high precision; 4) The instrument has been moved or subjected to physical shock; 5) Calibration checks indicate significant deviations from standard values. Always follow the manufacturer's calibration guidelines.
3. What are the common maintenance procedures required for this kjeldahl systems?
Common maintenance procedures include: 1) Regular cleaning of the instrument's exterior and sample contact surfaces to prevent contamination and ensure proper operation; 2) Inspection of moving parts (if applicable) for wear and lubrication as recommended by the manufacturer; 3) Replacement of consumable parts (filters, bulbs, reagents) according to usage guidelines; 4) Verification of performance parameters (temperature, pressure, voltage) regularly; 5) Storage of the instrument in a clean, dry environment when not in use; 6) Keeping a maintenance log to track service activities and identify potential issues early; 7) Following the manufacturer's specific maintenance schedule for optimal performance and longevity.
4. Can this kjeldahl systems be used with different types of samples, and are there any compatibility considerations?
Yes, this kjeldahl systems can be used with a variety of sample types, but compatibility considerations are important: 1) Check if the instrument's materials are compatible with the chemical composition of your samples (avoid corrosive or reactive substances that may damage the instrument); 2) Ensure that the sample volume and concentration are within the instrument's recommended range; 3) For biological samples, consider sterility requirements and potential cross-contamination risks; 4) For volatile or hazardous samples, ensure proper ventilation and safety precautions are in place; 5) Consult the manufacturer's documentation for specific sample compatibility guidelines, and perform compatibility tests with new sample types before regular use.
5. What should be done if the kjeldahl systems malfunctions or produces inconsistent results?
If malfunctions or inconsistent results occur: 1) First, check the instrument's user manual for troubleshooting guidelines specific to the issue; 2) Verify that the instrument is properly calibrated and within its calibration period; 3) Inspect for obvious issues such as loose connections, damaged parts, or incorrect settings; 4) Clean the instrument thoroughly to remove any contamination that may affect results; 5) Repeat the experiment with a known standard sample to determine if the issue is with the instrument or the sample; 6) If the problem persists, discontinue use of the instrument to prevent further damage or inaccurate results; 7) Contact technical support or a qualified service technician for diagnosis and repair, providing details of the issue and any troubleshooting steps already performed.
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