Shanghai Xinzhuang Instrument Co., Ltd. is a professional manufacturer specializing in the production of Kjeldahl nitrogen analyzers. These devices are widely used for determining nitrogen content in various samples such as seeds, food products, dairy items, beverages, feed, soil, and other agricultural by-products.
The KDN series Kjeldahl nitrogen analyzer is designed with advanced microcomputer control to ensure precise and efficient operation. It features automatic distillation control, automatic water supply, water level regulation, and automatic shut-off functions, along with alarms for low water pressure. The instrument also includes multiple safety protections, such as a safety door for the digestion tube and a water shortage alarm for the steam generator.
The device’s outer casing is made from special spray-coated steel, while the working area uses ABS anti-corrosion panels and stainless steel base plates. This construction ensures resistance to chemical corrosion and mechanical damage, making it suitable for harsh laboratory environments. Additionally, it only requires tap water, offering great adaptability and minimal requirements for experimental setups.
Technical specifications include:
- **Working mode:** Semi-automatic
- **Sample size:** 5g (solid), 15ml (liquid)
- **Measurement range:** 1mgN to 200mgN (equivalent to 0.02% to 95% nitrogen content)
- **Recovery rate:** 100±1% (relative error, including digestion process)
- **Distillation speed:** Less than 5 minutes per sample
- **Cooling water consumption:** 2L/min
- **Repetition rate:** Relative standard deviation < ±1%
- **Power supply:** AC 220V/50Hz
- **Water supply:** Water pressure > 0.15MPa, temperature < 20°C
- **Dimensions:** 430 × 360 × 760mm
- **Weight:** 30kg
There are several models available, each with different configurations:
| Model | Description | Price (RMB) |
|-----------|------------------------------------------|-------------|
| KDN-04A | Tap water source, 4-hole economical furnace | 7,600 |
| KDN-04C | Tap water source, 4-hole digital display furnace | 8,800 |
| KDN-08A | Tap water source, 8-hole economical furnace | 8,800 |
| KDN-08C | Tap water source, 8-hole digital display furnace | 9,900 |
This Kjeldahl nitrogen analyzer is ideal for laboratories that require accurate and reliable results in a variety of applications. With its user-friendly design and robust performance, it stands out as a top choice for nitrogen analysis. For more information or to place an order, feel free to contact Shanghai Xinzhuang Instrument Co., Ltd.
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