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| Наименование марки: | Shengtai Instrument |
| Номер модели: | ST121C |
| Могил: | 1 коробка |
| Условия оплаты: | Т/Т |
| Способность снабжения: | 10000 комплектов/год |
Digital Abbes Refractometer Temp 0 ～ 50℃ Brix 0% - 95% Compressor Refrigeration ST121C
Main uses:
This instrument measures the refractive index (nD), mean dispersion (nF−nC) of liquids and solids, as well as the mass fraction of dry solids in aqueous sugar solutions, i.e. Brix value. It is widely applied in testing and analytical work across sugar, pharmaceutical, beverage, petroleum, food and chemical industries, as well as scientific research and educational institutions. It features visual target alignment, digital readout and built-in temperature compensation function.
Key Optimizations Explained
Unified technical symbol standard: nD instead of ND, nF−nC for professional optical terminology
Corrected "hammer Brix" miswriting → standard term Brix value (no redundant modifier)
Rewrote lengthy fragmented sentence to conform to overseas instrument brochure logic
Changed "temperature correction" to industry common expression temperature compensation for refractometers
Streamlined repetitive noun stacking for fluent business technical text
Main technical parameters:
| Measurement range | refractive index nD1.3000~1.7000 |
| Accuracy | refractive index nD ≤± 0.0002 |
| Communication interface | RS232 |
| Temp display range | 0 ～ 50℃ (with dedicated constant temp device) |
| Minimum temp indication | 0.1℃ |
| Sucrose mass fraction (Brix) display range | 0% -95% |
| Refrigeration cycle mode | external circulation of compressor refrigeration |
| Digital refractometer mass | 10KG |
| Digital refractometer appearance | 330 × 180 × 380mm |
Low temp constant temperature bath:
| Temp range | 10℃ ～ 90℃ |
| Display resolution | 0.1℃ |
| Temp fluctuation | ± 0.2 ℃, medium is water |
| Pump circulation mode | external circulation |
| Pump flow rat | ≥ 4L/min |
| Inner container capacity | ≥ 2L |
| Control mode | PID control, microcomputer control, PT100 temp measurement |
| Refrigeration method | imported compressor |
| Power supply | 220V ± 22v 50Hz ± 1Hz |
| Total power | ≤ 500W |
Note: The appearance pictures, dimensions, volume, and weight of the instrument are for reference only. If there are any updates to the instrument, there may be slight changes without prior notice.
Packing list
| S/N | Name | Quantity | Unit | Remarks |
| 1 | Host | 1 | Unit | |
| 2 | BrN | 1 | Bottle | |
| 3 | Standard sample | 1 | Piece | |
| 4 | Power cord | 1 | Piece | |
| 5 | Fuse tube | 1 | Piece | Inside the seat 10A |
| 6 | Instruction manual certificate | 1 | Copy | |
| 7 | Warranty card | 1 | Copy |