1. Introduzione
This manual provides detailed instructions for the proper use, calibration, and maintenance of your Geko G02662 Freezing Point Refractometer. This precision optical instrument is designed to measure the freezing point of automotive coolants (ethylene glycol and propylene glycol based) and battery fluid condition. Please read this manual thoroughly before operating the device to ensure accurate results and prolong its lifespan.
2. Informazioni sulla sicurezza
- Always handle the refractometer with care. Avoid dropping or subjecting it to strong impacts.
- Do not immerse the instrument in water or other liquids.
- Avoid direct exposure of the prism to strong light sources, as this may damage the optical components.
- When handling automotive fluids, wear appropriate personal protective equipment (e.g., gloves, eye protection) and follow manufacturer safety guidelines for the fluids being tested.
- Keep the instrument out of reach of children.
3. Contenuto della confezione
Verificare che tutti gli articoli siano presenti nel pacco:
- Geko G02662 Refractometer
- Pipetta
- Mini-screwdriver (for calibration)
- Panno per la pulizia
- Custodia portaoggetti
- Manuale di istruzioni (questo documento)
4. Prodotto finitoview
Familiarize yourself with the components of the Geko G02662 Refractometer:
Figura 1: Lato view of the Geko G02662 Refractometer. This image displays the overall structure of the device, including the eyepiece, main body, and prism assembly.
Figura 2: Close-up of the prism and cover plate. The sample is applied to the main prism, which is then covered by the transparent plate.
Figura 3: View of the eyepiece. The user looks through this end to read the measurement scale.
- Oculare: Abituato a view the measurement scale. Rotate to adjust focus.
- Impugnatura in gomma: Provides a secure hold.
- Corpo principale: Contains the optical system.
- Vite di calibrazione: Used to adjust the zero point (under a cap).
- Prisma: The surface where the sample is placed.
- Piastra di copertura: Covers the sample sul prisma.
5. Impostazione
Before first use, or if the focus appears blurry:
- Hold the refractometer towards a light source.
- Guarda attraverso l'oculare.
- Rotate the eyepiece (part 1 in Figure 1) until the scale is clear and in sharp focus.
6. Istruzioni per l'uso
Follow these steps to take an accurate measurement:
- Pulisci il prisma: Ensure the prism (part 5) and cover plate (part 6) are clean and dry using the provided cleaning cloth.
- Applicare Sampon: Open the cover plate. Using the pipette, place 2-3 drops of the liquid to be tested onto the main prism.
- Close Cover Plate: Gently close the cover plate so that the liquid spreads evenly across the entire surface of the prism without air bubbles.
- Wait for Temperature Equalization: Allow approximately 30 seconds for the sample to equalize to the instrument's temperature. This is crucial for accurate readings.
- Misurazione di lettura: Hold the refractometer towards a light source and look through the eyepiece. The boundary line between the blue and white fields will indicate the measurement on the appropriate scale.
- Pulire dopo l'uso: Immediately after each measurement, clean the prism and cover plate thoroughly with a damp cloth, then dry with the cleaning cloth. Failure to do so can lead to inaccurate readings and damage to the prism.
7. Calibrazione
Calibration should be performed before first use, after cleaning, or if you suspect inaccurate readings. Use distilled water for calibration.
- Ensure the refractometer is at room temperature (20°C / 68°F).
- Clean the prism and cover plate thoroughly.
- Place 2-3 drops of acqua distillata onto the prism. Close the cover plate.
- Wait 30 seconds for temperature equalization.
- Look through the eyepiece. The boundary line should align with the 'WATERLINE' or '0' mark on the scale.
- If it does not, use the provided mini-screwdriver to turn the calibration screw (part 4, usually under a small cap) until the boundary line aligns perfectly with the 'WATERLINE' or '0' mark.
- Clean and dry the prism and cover plate.
8. Manutenzione e cura
- Pulizia: Always clean the prism and cover plate immediately after use with a soft, damp cloth, then dry with the cleaning cloth. Do not use abrasive materials or solvents.
- Magazzinaggio: Store the refractometer in its protective case in a dry, cool, and dust-free environment when not in use. Avoid direct sunlight or extreme temperatures.
- Evitare danni: Do not touch the prism surface with your fingers or any hard objects.
9. Risoluzione Dei Problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Blurry scale | Eyepiece out of focus | Rotate the eyepiece to adjust focus. |
| Letture imprecise | Instrument not calibrated; Prism dirty; Insufficient sample; Air bubbles in sample; Temperature difference. | Calibrate the instrument; Clean the prism; Apply sufficient sample (2-3 drops); Ensure no air bubbles; Allow sample to equalize temperature. |
| Boundary line not visible | Insufficient light; Sample too dark/opaque. | Point towards a brighter light source; Ensure sample is clear enough for measurement. |
10. Specifiche
- Numero modello: Geko G02662
- Produttore: Firma Handlowa GEKO
- Dimensioni della confezione: Dimensioni: 35 x 35 x 15 cm
- Peso: 220 grammi
- Campo di misura: Typically for Ethylene Glycol, Propylene Glycol, and Battery Fluid (specific scales visible through eyepiece).
- Compensazione automatica della temperatura (ATC): Yes (for accurate readings regardless of ambient temperature).
11. Garanzia e supporto
For warranty information and technical support, please refer to the documentation provided at the point of purchase or contact your retailer. Keep your purchase receipt as proof of purchase.