1. Уводзіны
The AMTAST AMR317 Digital 5-in-1 Refractometer is a precision instrument designed for accurately measuring the concentration and freezing points of various automotive fluids. This device is essential for maintaining vehicle performance and preventing damage due to extreme temperatures. It offers precise measurements, quick operation, and a compact, durable design.

This image shows the AMR317 refractometer in an automotive context, highlighting its application for testing diesel exhaust fluid (DEF) and other automotive liquids. The device features a waterproof design, one-button measurement, and automatic temperature compensation.
It can measure:
- Automotive Urea (AdBlue/DEF) concentration
- Ethylene Glycol (Coolant) freezing point
- Propylene Glycol (Coolant) freezing point
- Windshield Washer Fluid freezing point
- Urea Refractive Index
This manual provides detailed instructions for the proper setup, operation, and maintenance of your AMR317 refractometer to ensure accurate and reliable measurements.
2. Прадукт скончыўсяview
Familiarize yourself with the components of your AMTAST AMR317 refractometer:

This image displays the AMTAST AMR317 Digital Refractometer with its key parts labeled for easy identification.
- Protective blackout cover
- Detection slot (prism)
- Экран дысплея
- Scale switching button
- Zero button (Calibration)
- On/Off and Measurement buttons
- Сіліконавы чахол
The device features a clear digital display for easy reading of measurements and an intuitive button layout for operation.
3. Настройка
3.1 Устаноўка батарэі
The AMR317 refractometer requires one AAA alkaline battery (not included due to shipping regulations).
- Знайдзіце батарэйны адсек на задняй панэлі прылады.
- Адкрыйце крышку батарэйнага адсека.
- Insert one AAA alkaline battery, ensuring correct polarity (+/-).
- Надзейна зачыніце крышку батарэі.

This image shows the rear of the AMR317 refractometer with the battery compartment open, illustrating where to insert the AAA battery.
3.2 Пачатковая каліброўка
Before first use and periodically thereafter, calibrate the device using distilled water to ensure accuracy.
- Ensure the prism (detection slot) is clean and dry.
- Apply a few drops of distilled water onto the prism.
- Close the protective blackout cover.
- Long press the "CAL" button until "CAL" blinks on the screen.
- Press the "CAL" button again. The screen will display "0.0%" after "END", indicating successful calibration.
- Clean the prism thoroughly with a soft cloth after calibration.

This image visually guides the user through the calibration process, showing the refractometer with distilled water on the prism and the "CAL" button being pressed.
4. Інструкцыя па эксплуатацыі
Follow these steps for accurate measurement of various fluids:
- Ensure the prism and protective cover are clean and dry.
- Turn on the device by pressing the "READ" button.
- Press the "SCALE" button repeatedly to cycle through the available measurement scales (S01 to S05) until the desired scale is displayed.
- Apply 2-3 drops of the sample liquid onto the prism.
- Close the protective blackout cover to prevent light interference.
- Press the "READ" button. The measurement will be displayed on the screen within 2 seconds.
- Record the reading.
- Clean the prism thoroughly with a soft, damp cloth immediately after each measurement to prevent residue buildup.
4.1 Measurement Scales
The AMR317 offers five distinct measurement scales:
| Scale ID | Тып вадкасці | Дыяпазон | дазвол | Дакладнасць |
|---|---|---|---|---|
| S01 | Ачышчальнік вокнаў | -60 ~ 0°C (-76 ~ 32°F) | 0.1°C | ±0.5°C |
| S02 | Этыленгліколь | -50 ~ 0°C (-58 ~ 32°F) | 0.1°C | ±0.5°C |
| S03 | Прапiленглiколь | -50 ~ 0°C (-58 ~ 32°F) | 0.1°C | ±0.5°C |
| S04 | Urea (NH2)2CO (AdBlue/DEF) | 0 - 51.0% | 0.001 | ±0.005 |
| S05 | Urea Refractive Index | 1.3330 - 1.4200 nD | 0.0001 нД | Н/Д |

This image illustrates the various fluid types and their respective measurement ranges that the AMR317 refractometer can analyze, including Window Cleaner, Ethylene Glycol, Propylene Glycol, Urea (AdBlue/DEF), and Urea Refractive Index.
5. Тэхнічнае абслугоўванне
- Уборка: Always clean the prism and protective cover immediately after each use with a soft, damp тканіна. Не выкарыстоўвайце абразіўныя ачышчальнікі або растваральнікі.
- захоўванне: Store the refractometer in its protective case in a cool, dry place, away from direct sunlight and extreme temperatures. The compact and durable design ensures it can withstand tough conditions.
- Замена батарэі: Замяніце батарэйку тыпу AAA, калі на дысплеі з'явіцца індыкатар нізкага зараду батарэйкі.
- Пазбягайце апускання ў ваду: The device is designed to be splash-proof but should not be immersed in water or other liquids.

The refractometer should be stored in its provided protective case when not in use to ensure its longevity and accuracy.
6. Выпраўленне непаладак
- Няправільныя паказанні:
- Ensure the prism is clean and dry before applying the sampле.
- Recalibrate the device using distilled water.
- Пераканайцеся, што сample liquid completely covers the prism surface.
- Verify that the correct measurement scale (S01-S05) is selected for the fluid being tested.
- Дысплей не ўключаецца:
- Праверце, ці правільна ўсталявана батарэйка з захаваннем палярнасці.
- Заменіце батарэйку AAA на новую.
- "CAL" Error Message:
- Ensure distilled water is used for calibration.
- Verify the prism is clean and dry before applying distilled water for calibration.
- Repeat the calibration process carefully.
7. Тэхнічныя характарыстыкі
| Асаблівасць | Дэталь |
|---|---|
| Нумар мадэлі | AMR317 |
| Крыніца харчавання | 1 х шчолачная батарэя AAA |
| Аўтаматычнае адключэнне | Так (пасля 1 хвіліны бяздзейнасці) |
| Тэмпературная кампенсацыя | Аўтаматычны |
| Памеры | 6.85 х 4.41 х 1.81 цалі |
| Вага | 11.39 унцыі |
| Дата першай даступнасці | 14 верасня 2018 г |
Note: Refer to Section 4.1 for detailed measurement scale specifications.
8. Гарантыя і падтрымка
For warranty information or technical support, please contact AMTAST customer service. Keep your purchase receipt as proof of purchase.
Manufacturer: AMTAST
For further assistance, visit the official AMTAST webсайт або звярніцеся да іх каналаў падтрымкі.