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12–30 % WATER IN HONEY | 0.1 % SCALE DIVISION |
ATAGO HHR-2N optical refractometer for directly reading honey water content, with a thermometer and manual temperature correction.
Its 12–30 % scale lets you check samples before harvesting and packing. It uses ambient light and needs no batteries. This model suits beekeepers who prefer optical readings and a manual temperature-correction routine, which is distinct from the automatic ATC available on other models.
01 · READING
Place a homogeneous sample on the prism, close the plate and look through the eyepiece in good light. Focus and read the light/dark boundary. The scale directly displays honey water content from 12 to 30%, in 0.1-point divisions.
02 · TEMPERATURE
Let honey and instrument reach the same temperature. Read the thermometer and apply the correction on the built-in scale; record the initial reading, temperature and corrected result. Temperature correction on this model is manual. The IHC water/refractive-index table is referenced to 20 °C.
03 · CALIBRATION
ATAGO lists standard liquid LK RE-99010, approximately 73 °Brix at 20 °C, as an accessory for the HHR-2N. Use the standard’s specified value and procedure when adjusting this refractometer. Distilled water, equivalent to 0 °Brix, falls outside its measuring range.
04 · BEFORE BUYING
Use a homogeneous, crystal-free sample. When honey separates, the liquid phase becomes enriched in water: measuring only that layer overestimates the whole sample’s moisture. Homogenise a representative test portion and let it reach the instrument’s temperature before repeating the reading. As a practical storage target, aim for moisture below 18%. In Spain, Royal Decree 1049/2003 sets a general maximum of 20%, or 23% for heather honey from Calluna; baker’s honey has separate limits.
| Model | ATAGO HHR-2N |
|---|---|
| ATAGO code | 2522 |
| Shop reference | RFO8732 |
| Range | 12.0–30.0 % water in honey |
| Minimum division | 0.1 % |
| Temperature compensation | Manual, using thermometer and scale |
| Optional standard | ATAGO LK RE-99010 |
| Power | Ambient light; no batteries |
| Size and weight | 4 × 4 × 17 cm; 260 g |
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