1. Introducere
Atago 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. Informații de siguranță
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.
- Gestionează s-ulample 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.
- Asigurați-vă că sample well is clean and dry before and after each use to prevent contamination and ensure accurate readings.
3. Produs terminatview

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. Conținutul pachetului
- Atago ES-421 Palette-Style Digital Refractometer
- O baterie de 9V
3.2. Componente cheie
- Sample Well: Area where the liquid sample este plasat pentru măsurare.
- Afișaj digital LCD: Shows measurement readings, battery status, and error messages.
- START/ON Button: Powers the device on and initiates a measurement.
- Butonul ZERO: Used for calibrating the device to a zero point (e.g., with distilled water).
- Butonul SCALE: Allows selection or setting of different measurement scales.
- Compartiment baterie: Located on the back, houses the 9V battery.
4. Configurare
4.1. Instalarea bateriei
- Locate the battery compartment cover on the back of the refractometer.
- Glisați sau desfaceți capacul pentru a deschide compartimentul.
- Introduceți o baterie de 9V, asigurându-vă că polaritatea este corectă (+/-).
- Puneți bine capacul compartimentului bateriei.
4.2. Pornirea inițială
Apăsați tasta START/ON button to power on the device. The LCD display should illuminate.
5. Funcționare
5.1. Calibration (Zero Setting)
Calibration should be performed regularly, especially before critical measurements or if accuracy is in doubt.
- Asigurați-vă că sample well is clean and dry.
- Apply a few drops of distilled water to the sample well, ensuring the prism surface is fully covered.
- Apăsați tasta ZERO button. The display will show '0.00%' or a similar indication of successful calibration.
- Wipe the distilled water from the sample well using a soft, lint-free cloth.
5.2. Luarea unei măsurători
- Asigurați-vă că sample well is clean and dry.
- Apply a few drops of the sample liquid to the sample well, ensuring the prism surface is fully covered without air bubbles.
- Apăsați tasta START/ON buton.
- The measurement reading will be displayed on the LCD screen.
- Înregistrați citirea, dacă este necesar.
- Ștergeți sample from the well immediately after measurement to prevent residue buildup.
5.3. Compensare automată a temperaturii (ATC)
Atago 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 SCARĂ button to configure custom measurement units or ranges.
6. Întreținere
6.1. Cleaning the Sample Ei bine
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. Depozitare
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. Înlocuirea bateriei
When the low-battery indicator appears on the display, replace the 9V battery following the instructions in Section 4.1.
7. Depanare
Atago ES-421 provides error messages to assist in troubleshooting common issues:
- Concentrations or Temperatures Out of Range: Dacă sample'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 SampVolumul: 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.
- Baterie descărcată: 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. Specificații
| Caracteristică | Caietul de sarcini |
|---|---|
| Numărul de model | 4211 ES-421 |
| Interval de măsurare | 0.0 to 10.0% Salinity |
| Precizie | 0.05% of reading (0.00 to 1.00%); 0.5% of reading (1.01 to 10.0%) |
| Rezoluţie | 0.01% (0.00 to 2.99%); 0.1% (3.0 to 10.0%) |
| Tip de afișare | LCD cu 3 cifre |
| Tip baterie | baterie 9V (1) |
| Max Temperature Compensation | 40°C |
| Dimensiuni pachet | 9.37 x 6.1 x 2.6 inci |
| Greutatea articolului | 1.42 lire sterline |
| Producător | Cole-Parmer (as per Amazon listing) |
| Data primului disponibil | 14 ianuarie 2016 |
9. Garanție și asistență
For warranty information, technical support, or service inquiries, please contact Atago customer service or refer to the official Atago webPăstrați bonul fiscal ca dovadă a achiziției pentru reclamații în garanție.
Pentru asistență suplimentară, puteți vizita producătorul website-ul sau contactați direct canalele lor de asistență.