Measurement Features:
• Easy clean prism
• Wide Range – 1.30 to 1.70 RI
• Standard RI and Brix range
• User Scale Library
• 5-decimal place RI
• Wide Temperature Range
• Peltier Temperature Control
• SMART temperature stability
• Auto read function

Software Features:
• Temperature Stability Checks
• Measurement Methods
• Reading Limits Check
• Calibration Log/Audit Reports
• PIN Protection
• RFID user identity
• GLP Printout
• 700 stored results
• Tabular form of saved results
• 21 CFR Part 11
• Audit Trails
• Display language options

Methods:
• Coffee
• Daily Offsets
• Automation
• ASTM D 2140 (PDF)

Conforms to GLP, OIML; ASTM D 5006, 1747, 2140, 1218; USP/EP/BP; and operational requirements of FDA regulation 21 CFR Part 11.

RFM900 Refractometers
Refractometers with Peltier Temperature Control for Petrochemical, Pharmaceutical and Other Applications Requiring a Wide Measuring Range.

Designed as a replacement for the RFM800 series, the new RFM900 series of refractometers combine latest opto-electronic principles with durability and ease of use.

RFM900 refractometers feature RFID (radio frequency identification) that allows users to identify themselves by simply swiping a tag across the top of the instrument to enable measurement and in certain cases, access to the configuration menu.

A new low profile sample dish and non-contact presser makes sample application and cleaning much easier than with its predecessor. Readings can be taken automatically on the replacement of the presser and up to 700 stored results can be easily viewed in tabular form on the instrument display. Peltier temperature control and intelligent temperature management ensures readings are only taken when the sample and refractometer temperatures are both stable.

The instruments conform to a number of industry measurement standards and offer operational features that allow use in an environment controlled by FDA regulation 21 CFR Part 11. The use of a Kalrez® gasket and sapphire prism facilitates placement in the harshest measurement environments including those in the pharmaceutical, petrochemical, aroma, flavour, fragrance and other high RI sectors.

Flowcell versions are available on request.

Measurement Specifications

RFM960 RFM970 Scales Refractive Index Sugar (°Brix) User-defined 1.30 – 1.70 0-100 Yes – 100 1.30 – 1.70 0-100 Yes – 100 Resolution Refractive Index Sugar (°Brix) 0.0001 0.1 0.00001 0.01 Accuracy Refractive Index Sugar (°Brix) ±0.0001 ±0.1 ±0.00002 ±0.02 Presser Type Polyacetal Polyacetal Temperature Compensation Sucrose (°Brix) AG Fluids User-defined 5 – 80 °C Simple coefficient (units/ °C) or polynomial function Reading Time(s) Minimum 4 seconds Temperature Stability Checks None/delay time/repeatability/Smart (independently selectable by Method) Measuring Temperature Range 0 °C or 10 °C below ambient whichever is the greater to 80 °C Temperature Sensor Accuracy ±0.03 °C Sample Temperature Stability ±0.05 °C Power Supply External 100-240V, 50-60Hz. Supplied with instrument

Physical Specifications

Prism Artificial Sapphire Prism Dish 316 Stainless Steel / PEEK Prism Seal Kalrez® Interfaces 1 Parallel (printer), 2 x Serial (RS232) Sample Illumination Light Emitting Diode 589nm Temperature Control Peltier

Order Codes

22-60 RFM960 Refractometer including power supply and instructions 22-70 RFM970 Refractometer including power supply and instructions 22-80 Enhanced Protection Pack 55-250 Waterproof Power Supply Unit 26-155 Splash Cover 22-071 RFID Tags – pack of 3 22-072 RFID Tags – pack of 10