What is the principle, applicable scope, key technical indicators and after-sales guarantee of the crude fiber analyzer?

The ST116 crude fiber analyzer is an instrument that determines the crude fiber content of samples by digesting them using the commonly used acid-base digestion method and then conducting weight measurement. Crude fiber, measured under generally accepted and mandatory specified conditions, is not a specific chemical entity but a general component. It is obtained by digesting samples with acids and alkalis of accurate concentrations under specific conditions, removing soluble substances with ethanol, and deducting the amount of minerals after high-temperature ignition. This component is mainly composed of cellulose, along with small amounts of hemicellulose and lignin.

The analyzer is suitable for determining the crude fiber content of various grains, feeds, and other agricultural and sideline products that require crude fiber content measurement. Its test results comply with the provisions of national standards GB/T5515 and GB/T6434.

Key technical indicators of the ST116 crude fiber analyzer are as follows:

- Determination objects: Various feeds, grains, cereals, foods, and other agricultural and sideline products that need to determine crude fiber content.
- Number of test samples: 6 samples per time.
- Repeatability error: For crude fiber content below 10%, the absolute error is ≤0.4; for crude fiber content above 10%, the relative error is ≤4%.
- Determination time: Approximately 90 minutes required on the instrument (including 30 minutes for acid digestion, 30 minutes for alkali digestion, and about 30 minutes for suction filtration and washing).
- Power supply: AC220V/50HZ.
- Power: 2.3KVA.
- Volume: 540×450×670mm³.
- Weight: 28kg.
- Packaging size: 715×510×765mm; Packaging weight: 40kg.

Note: The appearance pictures, dimensions, volume, and weight of the instrument are for reference only. If the instrument is updated, there may be slight changes without prior notice.

The product packing list of the ST116 crude fiber analyzer includes the following items:

1. Main unit: 1 piece.
2. Fiber crucible: 6 pieces.
3. Glass flask: 3 pieces.
4. Power cord: 1 piece.
5. Fuse tube: 1 piece (10A, located in the fuse holder).
6. User manual: 1 copy.
7. Certificate of qualification and warranty card: 1 copy.

Shandong Shengtai Instrument Co., Ltd. provides the following quality assurance for the instrument sold to you:

- The provided instrument materials are new, conform to national quality standards, and are accompanied by the manufacturer's certificate of qualification.
- The provided materials and main components meet the technical requirements specified in the technical data.
- The overall quality warranty period of the equipment is one year (excluding normal wear of vulnerable parts).
- For instrument quality problems occurring within the quality warranty period, we are responsible for free maintenance. If the equipment malfunctions due to the user's responsibility, we will be responsible for the maintenance and charge a reasonable fee.
- We supply spare parts for the equipment at preferential prices for life and provide lifelong maintenance and repair services for the whole machine.
- After the expiration of the warranty period, if the user needs maintenance and technical services, we will only charge the cost.