Description:
High precision Peltier temperature controlled benchtop refractometer, featuring a wide measuring range and 7” touchscreen user interface. Ideally suited for use in applications within the chemical, petrochemical, pharmaceutical, flavours and fragrance industries as well as in academic research.
The RFM900-T Series refractometers are high precision instruments for use within petrochemical, pharmaceutical, flavours and fragrance industries. The ergonomically designed cases deal with any spills by the sloping shape of the case or by the PEEK spill barrier that surrounds the shallow, easy-clean stainless steel prism dish. The prism dish is shaped to hold sufficient sample for measurement whilst regaining a large enough surface area for rapid temperature stabilisation to occur. A Kalrez® gasket has been chosen as the prism seal due to its almost impermeable nature to most chemicals. The sample cover forms a seal to prevent evaporation, particularly important when working with volatile solutions such as aromatic oils, and is interchangeable so that a presser type can be fitted for more viscous samples.
- Easy clean prism
- Wide Range – 1.30 to 1.70 RI
- Up to 6 decimal places RI
- Wide Temperature Range
- Peltier Temperature Control
- 7” High definition touchscreen
- Temperature Stability Checks
- RFID user clearance
Inherent to the design is the high definition, capacitive touchscreen display that not only facilitates operation in factory environments, even when operated whilst wearing gloves, but also serves as the centrepiece for the new software. Combined, the touchscreen and GUI help the operator quickly manoeuvre through the user and configuration menus. On-screen graphical prompts support simple operation such as method loading, calibration and routine maintenance.
RFID swipe technology comes as standard, providing clearance and a log of operator and configuration functions – especially useful when being used in FDA-regulated environments operating in accordance with 21 CFR Part 11, or where good practice is adopted, e.g. as part of HACCP.
Measurements with the RFM900-T are made through a familiar measuring mode or by way of a simple Methods system with one-touch configuration of scale, temperature and data storage, with up to 4000 results being saved alongside pre-set limits that can be used as an audit tool. Methods may be user-defined or selected from the on-board library, such as the PHR-MEAN method that allows a number of individual readings from a single batch of pharmaceutical product to be measured with the resultant mean being displayed and recorded in accordance.
Specifications:
| Measurement Specifications | ||
| Model | RFM970-T | |
| Scales | ||
| Refractive Index | 1.30 – 1.70 | 1.30 – 1.70 |
| Sugar (°Brix) | 0-100 | 0-100 |
| User-defined | 100 | 100 |
| Resolution | ||
| Refractive Index | 0.0001 | 0.000001 (selectable up to 6 d.p.) |
| Sugar (°Brix) | 0.1 | 0.01/0.001 |
| Accuracy | ||
| Refractive Index | ±0.0001 | ±0.00002 |
| Sugar (°Brix) | ±0.1 | ±0.02 |
| Precision | ||
| Refractive Index | ± 0.00005 | ± 0.000005 (6 d.p.) |
| Sugar (°Brix) | ± 0.05 | ± 0.005 |
| User Scale Library | 20+ pre-programmed scales including HFCS (3), sugar (4), sucrose SG (3), ASTM D 2140, PHR-MEAN, Urea and more; plus customer programmable user scales via PC. | |
| Reading Time | Minimum 4 seconds (dependant on precision required) | |
| Measuring Temperature Range | 0°C or 10°C below ambient whichever is greater to 80°C | |
| Temperature Sensor Accuracy | ± 0.03°C | |
| Sample Temperature Stability | ± 0.02°C | |
| Temperature Compensation | ||
| Sucrose (°Brix) | 5 – 80 °C | |
| AG Fluid | 5 – 40 °C | |
| User Defined | Simple coefficient (units/°C) or polynomial function | |
| Temperature Stability Checks | None/delay time/repeatability/ Smart (independently selectable by Method) | |
| Sample Illumination | Light Emitting Diode 589nm (100,000+ hours) | |
| Prism / Dish | Artificial Sapphire / Stainless Steel 316 / PEEK (spill barrier) | |
| Prism Seal | Kalrez® | |
| Interfaces | 3 x USB (A), 1 x USB (B), 1 x Ethernet, RS232 via USB adaptor (optional accessory) | |
| Power | Instrument: 24 V DC, ±5%, <2A | |
| External PSU: 100-240V, 50-60Hz (supplied) | ||
| Humidity Range | <90% RH (non condensing) | |
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