S/N

Name of the item with its specifications

1

Kjeldahl Digester

Brand: Master Science, Switzerland

Introduction: The Kjeldahl Digester is an essential piece of equipment for the digestion and transformation of samples using the classical wet digestion principle. It is widely used across various sectors including agriculture, forestry, environmental protection, geology, petroleum, chemical industries, food analysis, and scientific research. It is particularly designed for preparing plant, seed, feed, soil, ore, and other samples for chemical analysis and serves as an ideal complement to the Kjeldahl nitrogen analyzer.

Features:

1. High-Density Graphite Heating Module: Ensures excellent temperature uniformity with minimal temperature buffer, capable of reaching up to 550℃.
2. Advanced Temperature Control: Equipped with a 5.6-inch color touch screen that supports both Chinese and English, facilitating easy operation.
3. User-Friendly Programming: Allows for fast input of formula programs using a table-type method, with clear logic to minimize errors.
4. Flexible Programming: Offers 0-40 segment programs for customizable heating processes.
5. Heating Modes: Supports both single point and curve heating modes.
6. Precision Temperature Control: Features intelligent PID self-tuning for high precision, reliability, and stability.
7. Solid State Relay: The electrical control system uses a solid-state relay for quiet operation and strong anti-interference capability.
8. Safety Features: Includes segmented power supply and power outage prevention restart functions to mitigate potential risks.
9. Protective Modules: Comes with over-temperature, over-pressure, and over-current protection modules to ensure safe operation.

Model: MSBKD10RSSWISS

Technical Specifications:

• Temperature Range: RT + 5℃ to 550℃
• Temperature Accuracy: ±1℃
• Capacity: 10 pcs
• Digestive Tube: Glass tube 300ml x 10
• Aperture Diameter: Φ43.5 mm
• Heating Block Material: High-density graphite
• Rate of Heating: Approximately 8-15℃/min
• Temperature Control System: 1-40 segment program heating or single point heating
• Formula Management: 9 groups
• Timed Shutdown: 1—999 minutes
• Display: 5.5-inch color touch screen
• Power Supply: AC 220V / 50Hz
• Consumption: 1.4 kW
• Package Size (W x H x D): 871 mm x 461 mm x 601 mm
• Net Weight: 18 kg
• Gross Weight: 24 kg

2

Gas Collection Hood

Brand: Master Science, Switzerland

Introduction: The Gas Collection Hood is designed for collecting and managing acid gases generated during the sample digestion process in a digestion furnace. It effectively captures a large volume of acid fog and routes it through a neutralization device for processing.

Features:

1. High-Temperature & Chemical Resistance: Sealing cover made of polytetrafluoroethylene (PTFE), known for its resistance to high temperatures, strong acids, and alkalis.
2. Reliable Acid Gas Collection: Collecting tube designed to capture acid gas efficiently with high reliability.
3. Conical Cap Structure: Features a conical design with a cap structure, each seal cap weighing 35g for secure sealing.
4. Gravity Seal Mechanism: Employs a gravity seal for reliable and convenient sealing.
5. Corrosion Resistance: Constructed from welded 316 stainless steel plate for excellent corrosion resistance.

Technical Parameters:

• Model: MSGCH10SWISS
• Collecting Ports: 10
• Air Extraction Port: 1
• Application: Compatible with MSBKD10RSSWISS
• Package Size (W x H x D): 350 mm x 260 mm x 260 mm
• Gross Weight: 3 kg

3

Exhaust System Scrubber

Brand: Master Science, Switzerland

Introduction: The Exhaust System Scrubber is designed to effectively collect, neutralize, and filter acid fog produced during sample digestion processes. This device addresses the environmental and facility damage caused by acid fog by employing a three-stage filtration system. It ensures that emissions are treated to meet pollution standards, minimizing environmental impact.

Features:

1. Acid and Alkali Neutralization: Equipped with a negative pressure pump for efficient air flow. The pump is durable, provides large flow capacity, and is user-friendly.
2. Three-Stage Filtration:
• First Stage: Neutralizes acid fog using a corresponding concentration of alkali solution.
• Second Stage: Filters residual waste gas with distilled water.
• Third Stage: Buffers residual waste gas in a buffer bottle.
3. Ease of Use: The system is designed to be simple, safe, and reliable. It features convenient replacement of the neutralization solution.
4. Reliability: Ensures thorough gas treatment to prevent harm to the environment and facilities.

Model: MSES1BSWISS

Technical Parameters:

• Extraction Flow: 18 L/min
• Air Extraction Interface: Φ8-10 mm (Reducer fittings available)
• Alkaline Solution Bottle: 1 L
• Distilled Water Bottle: 1 L
• Alkali Concentration: 10%–35%
• Power Supply: AC 220V / 50Hz
• Consumption: 120 W
• Package Size (W x H x D): 470 mm x 480 mm x 450 mm
• Gross Weight: 15 kg