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Rapid Online - Rapid Electronics Ltd.£67.07Visit shop Kern ORA 4FA Analogue Refractometer EG/PG/CW/BF
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The Kern ORA 4FA is a universal, maintenance-free analogue manual refractometer designed for measuring the concentration of various industrial and automotive solutions. It is ideal for professionals needing accurate readings of AdBlue, glycol (EG & PG), battery fluid, and screen wash freezing points, offering a practical and robust solution for frequent use in production environments. Its primary benefit is the elimination of user calculation errors through built-in, calibrated scales. A potential caveat is that it is an analogue device, requiring manual operation and interpretation.
| Model Part Number | ORA 4FA |
|---|---|
| Brand | Kern |
The ORA 4FA is designed to measure the concentration of AdBlue, ethylene glycol (EG), propylene glycol (PG), battery fluid (BF), and the freezing point of screen wash (CW).
No, the Kern ORA 4FA is an analogue manual refractometer and does not require batteries or any power source.
Clean the prism and cover plate with a soft, damp cloth after each use. Dry thoroughly with a soft, lint-free cloth. Avoid abrasive cleaners or solvents.
No, the ORA 4FA is not designed for salinity measurements. A different model, like the Kern ORA 1SA, would be required for that purpose.
The built-in scales eliminate the need for manual conversion of refractive index values into concentration units, thereby preventing user calculation errors and ensuring faster, more accurate results.
Yes, its robust and maintenance-free design makes it suitable for repeated use in production environments.
Please refer to the manufacturer's documentation or the retailer for specific warranty information, as it can vary.
Ensure the eyepiece is clean and properly focused. Check that the sample fluid is spread evenly on the prism without air bubbles. Ensure sufficient light is available.
Verify that the correct scale is being used for the fluid being tested. Ensure the instrument was properly cleaned after the previous use. Recalibrate using distilled water if possible and if the issue persists.
Ensure both the prism and the cover plate are perfectly clean. Apply a sufficient amount of sample fluid, and close the cover plate gently to avoid trapping air.
Setup:
Compatibility:
This refractometer is specifically calibrated for:
It is not designed for use with other substances unless they share a similar refractive index behavior and fall within the calibrated range for one of the supported scales.
Care:
