Atago ES-421 Palette-Style Digital Refractometer Instruction Manual

1. ভূমিকা

এtago ES-421 Palette-Style Digital Refractometer is designed for fast and accurate concentration readings, making it suitable for on-site use. This compact, portable device features a built-in thermistor for Automatic Temperature Compensation (ATC), eliminating the need for manual temperature correction tables. It provides clear error messages for out-of-range concentrations or temperatures, inadequate sample volume, standardization errors, or low battery conditions. Calibration is straightforward, requiring only distilled water and the zero-adjustment button. The water-resistant design enhances its utility in damp field environments. Additionally, the device allows operators to set custom user scales.

2. নিরাপত্তা তথ্য

Please read and understand all safety instructions before operating the Atago ES-421 Refractometer. Failure to follow these instructions may result in injury or damage to the instrument.

• Do not immerse the entire unit in water, despite its water-resistant design. The water resistance applies to splashes and damp environments, not full submersion.
• গুলি সামলাওample well and prism with care to avoid scratches or damage, which can affect measurement accuracy.
• Use only the specified 9V battery. Incorrect battery types may cause malfunction or damage.
• Keep the device away from strong magnetic fields or excessive vibrations.
• Do not attempt to disassemble or repair the unit yourself. Refer to qualified service personnel for repairs.
• এস নিশ্চিত করুনample well is clean and dry before and after each use to prevent contamination and ensure accurate readings.

3. পণ্য শেষview

This image displays the Atago ES-421 Palette-Style Digital Refractometer. It features a black body with a red and grey control panel. The digital LCD screen shows '87.9 %'. Below the screen are three grey buttons: 'START/ON', 'ZERO', and 'SCALE'. On the right side, there is a circular sample well with a metallic rim.

3.1. প্যাকেজ বিষয়বস্তু

• Atago ES-421 Palette-Style Digital Refractometer
• একটি 9V ব্যাটারি

3.2. কী উপাদান

• Sample Well: Area where the liquid sample is placed for measurement.
• ডিজিটাল এলসিডি ডিসপ্লে: Shows measurement readings, battery status, and error messages.
• START/ON Button: Powers the device on and initiates a measurement.
• শূন্য বোতাম: Used for calibrating the device to a zero point (e.g., with distilled water).
• স্কেল বোতাম: Allows selection or setting of different measurement scales.
• ব্যাটারি কম্পার্টমেন্ট: Located on the back, houses the 9V battery.

4. সেটআপ

4.1. ব্যাটারি ইনস্টলেশন

1. Locate the battery compartment cover on the back of the refractometer.
2. বগিটি খুলতে কভারটি স্লাইড করুন বা খুলে দিন।
3. সঠিক পোলারিটি (+/-) নিশ্চিত করে একটি 9V ব্যাটারি ঢোকান।
4. ব্যাটারি বগির কভার নিরাপদে প্রতিস্থাপন করুন।

৩. প্রাথমিক পাওয়ার অন

চাপুন START/ON button to power on the device. The LCD display should illuminate.

5. অপারেশন

5.1. Calibration (Zero Setting)

Calibration should be performed regularly, especially before critical measurements or if accuracy is in doubt.

1. এস নিশ্চিত করুনample well is clean and dry.
2. Apply a few drops of distilled water to the sample well, ensuring the prism surface is fully covered.
3. চাপুন শূন্য button. The display will show '0.00%' or a similar indication of successful calibration.
4. Wipe the distilled water from the sample well using a soft, lint-free cloth.

5.2. একটি পরিমাপ গ্রহণ

1. এস নিশ্চিত করুনample well is clean and dry.
2. Apply a few drops of the sample liquid to the sample well, ensuring the prism surface is fully covered without air bubbles.
3. চাপুন START/ON বোতাম
4. The measurement reading will be displayed on the LCD screen.
5. Record the reading if necessary.
6. s মুছাample from the well immediately after measurement to prevent residue buildup.

5.3. Automatic Temperature Compensation (ATC)

এtago ES-421 features a built-in thermistor that automatically compensates for temperature variations within its specified range (up to 40°C). This ensures accurate readings without manual temperature correction tables.

5.4. Setting User Scales

The device provides the ability to set user-defined scales. Refer to the detailed instructions in the full product manual (if available) or contact Atago support for specific procedures on utilizing the স্কেল button to configure custom measurement units or ranges.

6. রক্ষণাবেক্ষণ

6.1. Cleaning the Sampভাল

After each use, clean the sample well and prism surface thoroughly with a soft, lint-free cloth or tissue. For stubborn residues, a small amount of distilled water or a mild cleaning solution compatible with the prism material can be used, followed by drying.

6.2. স্টোরেজ

Store the refractometer in a clean, dry place away from direct sunlight, extreme temperatures, and corrosive chemicals. If storing for an extended period, remove the 9V battery to prevent leakage.

6.3. ব্যাটারি প্রতিস্থাপন

When the low-battery indicator appears on the display, replace the 9V battery following the instructions in Section 4.1.

7. সমস্যা সমাধান

এtago ES-421 provides error messages to assist in troubleshooting common issues:

• Concentrations or Temperatures Out of Range: যদি এসample's concentration or temperature exceeds the device's operational limits, an error message will appear. Ensure your sample falls within the 0.0 to 10.0% salinity range and the temperature is within the ATC compensation range (up to 40°C).
• Inadequate Sampলে ভলিউম: If not enough sample is applied to fully cover the prism, an error will occur. Ensure the prism is completely covered with the liquid.
• Standardization Errors: This may occur during calibration if the distilled water is contaminated or the ZERO button is pressed incorrectly. Re-clean the sample well and re-attempt calibration with fresh distilled water.
• কম ব্যাটারি: The display will indicate a low battery. Replace the 9V battery as soon as possible to ensure accurate operation.

If problems persist after following these steps, contact Atago customer support.

8. স্পেসিফিকেশন

9. ওয়্যারেন্টি এবং সমর্থন

For warranty information, technical support, or service inquiries, please contact Atago customer service or refer to the official Atago webসাইট। ওয়ারেন্টি দাবির জন্য ক্রয়ের প্রমাণ হিসেবে আপনার ক্রয়ের রসিদটি রাখুন।

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