RFM300+ refractometer

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Features:

• High accuracy
• Wide range
• Peltier temperature control
• Easy clean prism
• Water resistant housing
• Presser ‘Read’ function
• Methods system (100+)
• Over 700 stored readings

RFM340+ Prism Dish

RFM340+ Detail

RFM300+ Refractometers

RFM300+ refractometers encompass attributes of their predecessors and also
offer a wider refractive index range and Peltier temperature control. A shallow,
easy to clean prism dish houses a new, single sapphire prism optical system
protected by a sample presser that may also be used to instigate a
measurement without the need to press the read button. A large sampling area
on the prism surface allows measurement of not only homogenous fluids like
edible and mineral oils but also difficult to read samples like fruit pulps and
industrial resins.

The instrument is available in two formats, the most popular being the 2-decimal
place RFM340+. Intelligent software ensures rapid temperature response to
change in prism temperature, whilst the SMART temperature stability check
makes sure that the result is displayed only when the sample is stable. A
methods system allows rapid configuration of instrument setup and provides
limit checks against stored data as well as product specific offsets and acid
corrections. Over 700 readings may be stored within the instrument memory
and the on-screen menu may be displayed in a number of different languages.

Designed with the most vigorous environments in mind, the RFM300+ can be
fitted with optional extras that allow use in wet and humid factory environments.

Specifications RFM330+ RFM340+
Scales
  Refractive Index
  Sugar (°Brix)
  User-defined (100 scales - configurable)

1.32 – 1.58
0-100
Yes

1.32 – 1.58
0-100
Yes
Resolution
  Refractive Index
  Sugar (°Brix)
0.0001
0.1
0.00001
0.01
Accuracy
  Refractive Index
  Sugar (°Brix)
±0.0001
±0.1
±0.00004
±0.03
Presser Type Polyacetal Polyacetal
Reading Time Minimum 4 seconds
Measuring Temperature Range 10 °C below ambient to 70 °C
Temperature Sensor Accuracy ± 0.03 °C
Sample Temperature Stability ± 0.05 °C
Temperature Compensation
  Sucrose (°Brix)
  AG Fluids
  User-defined
5 – 70 °C
Simple coefficient (units/ °C) or polynomial
function
Temperature Stability Checks Independently selectable by method
Ambient Humidity Range <90% RH

Physical Specification
Prism Artificial Sapphire (Single). 12mm sample area diameter
Prism Dish 316 Stainless Steel / PEEK
Prism Seal Silicon/Resin
Interfaces 1 Parallel (printer), 2 x Serial (RS232)
Sample Illumination Light Emitting Diode (life 100,000hr +) 589nm
Temperature Control Temperature Control
Power Supply External 100-240V, 50-60Hz. Supplied with instrument

Order Code Description
22-30 RFM330+ Refractometer incl. standard power supply and instructions
22-40 RFM340+ Refractometer incl. standard power supply and instructions
22-80 Enhanced Protection Pack
55-250 Waterproof Power Supply Unit
26-155 Splash Cover



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