1. Киришүү
The Sper Scientific 300053 Pocket Digital Refractometer is a precision instrument designed for accurate measurement of Brix concentration in various solutions. This device offers laboratory-grade accuracy in a portable, easy-to-use format, suitable for field applications. It features automatic calibration, automatic temperature compensation (ATC), and an automatic shutoff function to conserve battery life.
Image 1: Sper Scientific 300053 Pocket Digital Refractometer, showing the device's front view with a digital display.
2. Продукт бүтүп калдыview жана өзгөчөлүктөрү
The Sper Scientific 300053 is engineered for convenience and accuracy. Its compact design allows for easy portability, while its digital readout ensures precise measurements.
- Өлчөө диапазону: Brix 0 ~ 95%.
- Чечим: 0.1%.
- Тактыгы: ± 0.2%.
- SampКөлөмү: Requires samples as small as 1 ml.
- Дисплей: Large LCD shows sample temperature and measurement results.
- Автоматтык калибрлөө: One-button calibration to distilled water.
- Температураны автоматтык компенсациялоо (ATC): Ensures accurate readings regardless of sampтемпературанын өзгөрүшү.
- Автоматтык түрдө өчүрүү: Батареяны үнөмдөө үчүн 3 мүнөт аракетсиз болгондон кийин өчөт.
- Туруктуу дизайн: Sturdy, water-resistant case protects internal electronics.
- Батарея көрсөткүчү: Alerts when battery replacement is needed (approximately 8000 readings per battery).
Image 2: The refractometer with its sample well cover open, revealing the prism and sample аймак.
3. Пакеттин мазмуну
Таңгактан чыгаргандан кийин, төмөндө көрсөтүлгөн нерселердин бардыгы бар экенин текшериңиз:
- Sper Scientific 300053 Pocket Digital Refractometer
- Distilled Water (for calibration)
- Transfer Pipet
- AAA Батарея
- Көрсөтмө (бул документ)
- Ташуу кутусу
Image 3: The refractometer shown with its included carrying case, distilled water vial, and transfer pipet.
4. Орнотуу
- Батарея орнотуу: Open the battery compartment located on the back of the device. Insert the AAA battery, ensuring correct polarity. Close the compartment securely.
- Баштапкы күйгүзүү: Press the "READ" button to turn on the device. The display will illuminate.
- Clean the Prism: Before first use and before each measurement, ensure the prism surface is clean and dry. Use a soft, lint-free cloth to gently wipe the prism.
5. Калибрлөө
For accurate measurements, the refractometer must be calibrated with distilled water. Perform calibration at room temperature (20-25°C / 68-77°F).
- Ensure the prism surface is clean and dry.
- Using the transfer pipet, place 2-3 drops of distilled water onto the prism surface. Ensure the water completely covers the prism.
- Призманын капкагын акырын жабыңыз.
- Press and hold the "ZERO" button for approximately 2 seconds until "CAL" appears on the display.
- Release the "ZERO" button. The display will show "END" indicating successful calibration.
- Wipe the distilled water from the prism and cover with a clean, dry cloth. The device is now ready for measurement.
6. Операция
Өлчөөнү алуу үчүн бул кадамдарды аткарыңыз:
- Ensure the refractometer has been calibrated as described in Section 5.
- Clean the prism surface thoroughly with a soft, lint-free cloth.
- Using the transfer pipet, place 2-3 drops of the sample liquid onto the prism surface. Ensure the sample completely covers the prism.
- Призманын капкагын акырын жабыңыз.
- Press the "READ" button. The display will first show the sample temperature, then the Brix percentage.
- Record the measurement.
- After measurement, immediately clean the prism and cover with distilled water and a soft, lint-free cloth to prevent residue buildup.
Image 4: The refractometer displaying a Brix reading of 25.8%, with the sample well open.
7. Техникалык тейлөө
- Тазалоо: Always clean the prism and cover immediately after use with distilled water and a soft, lint-free cloth. Do not use abrasive materials or harsh chemicals, as they can damage the prism surface.
- Сактагыч: Store the refractometer in its carrying case in a cool, dry place, away from direct sunlight and extreme temperatures.
- Батареяны алмаштыруу: When the low battery indicator appears, replace the AAA battery promptly to ensure continued accurate operation.
- Суу каршылык: The device is water-resistant, but it is not submersible. Avoid prolonged exposure to water.
8. Кыйынчылыктарды
| Көйгөй | Мүмкүн себеп | Чечим |
|---|---|---|
| Так эмес окуулар | Prism not clean; improper calibration; insufficient sample volume; sample temperature outside operating range. | Clean prism thoroughly; recalibrate with distilled water; ensure prism is fully covered by sample; allow sample to reach room temperature. |
| Display shows "CAL" repeatedly or fails to calibrate | Insufficient distilled water; prism not clean; "ZERO" button not held long enough. | Ensure 2-3 drops of distilled water cover the prism; clean prism; hold "ZERO" button for 2 seconds until "CAL" appears. |
| Түзмөк күйбөйт | Dead battery; incorrectly installed battery. | Replace AAA battery; check battery polarity. |
| Дисплей күңүрт же бүлбүлдөп турат | Батарея аз. | Replace AAA battery. |
9. Техникалык шарттар
| Параметр | Нарк |
|---|---|
| Модель номери | 300053 |
| Measurement Range (Brix) | 0 ~ 95% |
| Резолюция | 0.1% |
| Тактык | ±0.2% |
| Температураны автоматтык түрдө компенсациялоо (ATC) | Ооба |
| Минималдуу С.ample Volume | 1 мл |
| Өлчөмдөр | 4.65 x 1.26 x 2.44 дюйм (118 x 32 x 62 мм) |
| Салмагы | 4.6 унция (130 г) |
| Power Source | AAA Батарея |
| Батареянын иштөө мөөнөтү | Болжол менен 8000 окуу |
| Келип чыккан өлкө | Кытай |
Image 5: A table detailing specifications for different Sper Scientific refractometer models, including the 300053.
10. Кепилдик жана колдоо
Sper Scientific is committed to providing reliable instruments and ensuring customer satisfaction. For warranty information, technical support, or service inquiries, please refer to the official Sper Scientific webсайтка же кардарларды тейлөө бөлүмүнө кайрылыңыз. Сатып алганыңыздын далили катары сатып алуу дүмүрчөгүңүздү сактаңыз.
Кошумча жардам алуу үчүн, сиз иш сапары менен болот Sper Scientific Store on Amazon.
