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Quicklinks:
For greater detail on the RFM800's features follow the links below or download a PDF file.

Measurement Features
Software Features – methods
Automation
One, Two and Multipoint Calibration
Robust Manufacture
Security Features – 21 CFR Part 11


PDF Literature download:
Spanish French German and English Flags Spanish
French
German
English
Requires a PDF reader

Measurement Features:
• Wide Range – 1.30 to 1.70 RI
• Standard Brix range
• User Scale Library
• 5-decimal place RI
• 2-decimal place Brix
• Peltier Temperature Control
• Wide Temperature Range

Software Features:
• Temperature Stability Checks
• Measurement Methods
• Reading Limits Check
• Calibration Log/Report
• PIN Protection
• GLP Printout
• 21 CFR Part 11
• Audit Trails

Methods:
• Coffee
• BeerSmart %ABV (PDF)
• Daily Offsets
• Edible Oils
• Automation
• ASTM D 2140 (PDF)

Options:
• Funnel Flowcell (PDF)
• Micro Flowcell (PDF)
• Barcode Reader (PDF)
• Autosampler (PDF)
• IP66 Power Supply (PDF)
• Calibration Materials
• Splash Covers (PDF)

Compliance:
• GLP
• OIML
• USP/EP/BP
• ASTM D 1218-02
• ASTM D 5006
• ASTM D 2140

RFM800 Refractometers
Refractometers with Peltier Temperature Control for Laboratory Applications

RFM800 – Automatic Digital Refractometers for the 21st Century

For over 90-years Bellingham + Stanley has been at the forefront of refractometer design and the RFM trademark has become synonymous for setting the standards in precision, quality and reliability. Whilst these standards are now taken for granted, the RFM800 series represents a major advance in measurement technology allowing digital refractometers to be placed in principal laboratories the world over.

The RFM800 series comprises four standard models that allow the user to select the instrument that best suits the particular application and regulatory requirements. Whilst all instruments incorporate common manufacturing components and software design, models vary according to measuring range, resolution and accuracy.

RFM800 series refractometers are particular suited to high refractive index measurement such as those required in fragrance, flavour, essence, chemical, petrochemical industries.  Additionally, having high security software options, RFM800 series refractometers comply with the operational requirements of FDA regulation 21 CFR Part 11 is therefore especially suited for use in the pharmaceutical industry.

Measurement Specifications
RFM830 RFM840 RFM860 RFM870

Scales
RI
Sugar (°Brix)
User-defined (100 scales – configurable)
1.32 – 1.58
0-100
yes
1.32 – 1.58
0-100
yes
1.30 – 1.70
0-100
yes
1.30 – 1.70
0-100
yes

Resolution
  RI
  Sugar (°Brix)

 0.0001
0.1
 0.00001
0.01
0.0001
0.1
0.00001
0.01
Accuracy
  RI
  Sugar (°Brix)		 ±0.0001
±0.1 		±0.00002
±0.02		 ±0.0001
±0.1		 ±0.00002
±0.02
Presser Type Polyacetyl Polyacetyl PEEK PEEK
User Defined Scales %FSII, Zeiss, Oechsle (CH) & (D), Babo (KMW), Baumé, Probable Alcohol (A.P.), Sodium Chloride (NaCl), HFCS (42, 55 & 90%), Butyro amongst others from instrument library OR custom user scales by push button entry or via PC program
Reading Time(s) Minimum 4 seconds
Ambient Temperature Range 0 – 40 °C
Measuring Temperature Range
  Lower limit
  Upper limit		 0 °C or 10 °C below ambient whichever is the greater
approximately 100 °C
Temperature Sensor Accuracy ±0.03 °C
Temperature Stability ±0.05 °C
Automatic Temperature
Compensation
  Sucrose (Brix)
  User-defined

5 – 80 °C
Simple coefficient (units/°C) or polynomial function with offset
Temperature Stability Checks None/delay time/repeatability/Smart
(independently selectable by method)
Ambient Humidity Range < 80% RH


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 – (life 100,000 hours +)
Temperature Control Peltier


Order Codes
26-30 RFM830 including external power supply (100-240V~, 50-60Hz),
spare filters (4 Pack) and instructions
26-40 RFM840 including external power supply (100-240V~, 50-60Hz),
spare filters (4 Pack) and instructions
26-60 RFM860 including external power supply (100-240V~, 50-60Hz),
spare filters (4 Pack) and instructions
26-70 RFM870 including external power supply (100-240V~, 50-60Hz),
spare filters (4 Pack) and instructions
55-80 Barcode Reader (230V~, 50Hz)
55-81 Barcode Reader (110V~, 60Hz)
26-292 Dust Filter (Pack of 20)
26-155 Switch Membrane Anti-splash Cover
55-250 Waterproof Power Supply to IP66 (100-240V~, 50-60Hz)
26-80 Micro Flowcell (vol. 0.6ml)
26-81 Macro Flowcell (vol. 1.2ml)
28-82 Funnel Flowcell (vol. 1.2ml & 30ml flush at 30 °Brix max.)
26-451 Validation Documentation (only)
Warranty 24-months

 

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