Refractometer
Robust, low cost, fully automatic instruments that are ideally suited to the food, sugar and beverage industries but can also be used in many other non-food applications where temperature control is not required, for example measuring sugar (°Brix) concentrations in the food processing industry.
Commonly, the RFM700-M series refractometers are supplied to operate in the °Brix scale with results temperature compensated to 20°C in accordance with ICUMSA. Additional user scales provide measurement in different formats such as Refractive Index (RI) various wine, urine specific gravity & automotive scales as well as allowing custom scales to be loaded in accordance with product data.
Specifications
Specifications | RFM712-M | RFM732-M | RFM742-M |
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Scales Refractive Index Sugar (°Brix) User-defined |
. |
. 1.32 – 1.54 0-100 100 |
. 1.32 – 1.54 0-100 100 |
Resolution Refractive Index Sugar (°Brix) |
. 0.0001 0.1 |
. 0.0001 0.1 |
. 0.00001 0.01 |
Accuracy Refractive Index Sugar (°Brix) |
. ±0.0001 ±0.1 |
. ±0.0001 ±0.1 |
. ±0.00005 ±0.04 |
Precision (Reproducibility) Refractive Index Sugar (°Brix) |
. ± 0.00005 ± 0.05 |
. ± 0.00005 ± 0.05 |
. ± 0.00001 ± 0.01 |
User Scale Library | 20+ pre-programmed scales including HFCS (3), Sugar (4), Honey, NaCl, Wine Must (5), Urine SG (3), Glycol (2), Urea, FSII and more; plus customer programmable user scales via PC. | ||
Reading Time | Minimum 4 seconds (optional time delay) | ||
Temperature Control | None – Automatic Temperature Compensation (ATC) | ||
Temperature Compensation | ICUMSA, AG, User, none | ||
Sample Temperature Range | 0-100 °C | ||
Measuring Temperature Range | 5-40 °C | ||
Temperature Sensor Accuracy | ± 0.03 °C | ||
Sample Temperature Stability | ± 0.05 °C | ||
Temperature Compensation Sucrose (°Brix) AG Fluids User-defined |
5 – 80 °C 5 – 40 °C Simple coefficient (units/ °C) or polynomial function |
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Temperature Stability Checks | Delay in seconds or none | ||
Sample Illumination | Light Emitting Diode 589nm (100,000+ hours) | ||
Prism / Dish | Artificial Sapphire / Stainless Steel 316 / PEEK (spill barrier) | ||
Prism Seal | Silicon/Resin | ||
Interfaces | 1 x USB (A), 1 x USB (B), RS232 via USB adaptor (optional accessory) | ||
Power | Instrument: 24 V DC, ±5%, <1A External PSU: 100-240V, 50-60Hz (supplied) |
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Humidity Range | <90% RH (non-condensing) |