Bellingham + Stanley
RFM 300   
RFM300 Refractometers are the most versatile and hence the most popular models. They have achieved an impressive track record with customers throughout the world. These instruments offer the best available technology for use in quality control. RFM300 models are designed for easy set-up and operation, reliable measurement and flexible data recording. Brix, RI and up to 5 user scales can be created or selected from the instrument memory. All models are now equipped with a 'Data Management Software' package, aimed at companies that require detailed and particular data recording dictated by modern quality systems, i.e. date and time stamping, operator number, etc. High solids (suspensions, pastes), colour and high viscosity are not a problem; in addition to a repeatable reading, the instrument will give a measure of 'borderline quality'.
 
Standards
 
Features
Sapphire prism RI, Brix and other pre-programmed scales Password security (two level) Single or continuous read Easy wipe stainless steel sample dish Self-scanned array detection RS232C interface External power supply Selectable temperature compensation (Brix) Large LCD display Optional delay before read Borderline quality indicator User friendly software Optional printing Memory for 16 scales Optional remote operation from a PC
 
Applications
 
Tech. parameters
  RFM320 RFM330 RFM340
Scales Sugar 0-50%
RI 1.33-1.42
Sugar 0-95%
RI 1.33-1.54
Sugar 0-95%
RI 1.33-1.54

Resolution
Sugar
RI

0.01%
0.00001
0.1%
0.0001
0.01%
0.00001
Accuracy
Sugar
RI
0.03%
0.00004
0.1%
0.0001
0.03%
0.00004
Other Scales Up to 16 scales available including pre-programmed standard scales: Zeiss, Oechsle, Butyro, Fructose. Customer defined scales programmable by push button entry.
Reading time(s) 3.5 6.5 6.5
Temperature compensation 10 C to 40 C - ICUMSA
5 C to 10 C and 40 C to 60 C - B+S data and user defined
Circulation temp. limits 5 C to 60 C
Ambient temp. limits 5 C to 45 C
Prism Artificial sapphire
Prism plate 316 stainless steel
Printer port/interface RS232C
Sample illumination Light emitting diode
Display 6 digit, 7 segment 12mm LCD
2 x 24 dot matrix LCD
Power Supply External 90 - 250V~ 10%, 50-60Hz