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Food & Beverage Production & Testing Digital Refractometer RFM712-M

Digital Refractometer RFM712-M with ATC and Keypad

Designed with simplicity in mind, RFM700-M Series refractometers with Brix, RI scales as standard offer digital automatic technology at a low cost.

This refractometer, the RFM712-M, covers the range 0-50 Brix with 1-decimal place accuracy making it ideal for use in factories or labs, particularly within food and beverage production as well as other industrial sectors where temperature control is not required.

  • Alpha-numeric keypad for easy data entry
  • Flat sapphire prism surface for easy cleaning
  • Simple operation for factory environments
  • Selectable read type: Continual, single, intelligent auto-sense
Robust and Fully Automatic 

RFM700-M Series refractometers are robust, low-cost, fully automatic instruments that are ideally suited to the food, sugar and beverage industries but can also be used in many other non-food applications where temperature control is not required, for example measuring sugar (°Brix) concentrations in the food processing industry.

The RFM700-M Series features robust construction, a sapphire prism mounted in an easy-clean stainless steel dish and an outer casing that is sealed and shaped to withstand sample spillage and moisture ingress. This together with the external power supply makes the RFM700-M ideal for use in a harsh factory environment or busy laboratory.

 

Scales and Calibration

Commonly, the RFM700-M series refractometers are supplied to operate in the °Brix scale with results temperature compensated to 20°C in accordance with ICUMSA. Additional user scales provide measurement in different formats such as various wine, Refractive Index (RI) & FSII as well as allowing custom scales to be loaded in accordance with product data.

The RFM700-M facilitates Span calibration at any value using a variety of media types, as temperature compensation may be adjusted to suit the product being used. Additionally, the instruments are fitted with AG temperature compensation, allowing the use of AG Fluids without the need to use a conversion table.

Specifications

RFM712-M

Specifications RFM712-M RFM732-M RFM742-M
Scales
Refractive Index
Sugar (°Brix)
User-defined
1.32 – 1.42
0-50
100
1.32 – 1.54
0-100
100
1.32 – 1.54
0-100
100
Resolution
Refractive Index
Sugar (°Brix)
0.0001
0.1
0.0001
0.1
0.00001
0.01
Accuracy
Refractive Index
Sugar (°Brix)
±0.0001
±0.1
±0.0001
±0.1
±0.00005
±0.04
Precision (Reproducibility)
Refractive Index
Sugar (°Brix)
± 0.00005
± 0.05
± 0.00005
± 0.05
± 0.00001
± 0.01
User Scale Library 20+ pre-programmed scales including HFCS (3), Sugar (4), Honey, NaCl, Wine Must (5), Urine SG (3), Glycol (2), Urea, FSII and more; plus customer programmable user scales via PC.
Reading Time Minimum 4 seconds (optional time delay)
Temperature Control None – Automatic Temperature Compensation (ATC)
Temperature Compensation ICUMSA, AG, User, none
Sample Temperature Range 0-100 °C
Measuring Temperature Range 5-40 °C
Temperature Sensor Accuracy ± 0.03 °C
Sample Temperature Stability ± 0.05 °C
Temperature Compensation
Sucrose (°Brix)
AG Fluids
User-defined
5 – 80 °C
5 – 40 °C
Simple coefficient (units/ °C) or polynomial function
Temperature Stability Checks Delay in seconds or none
Sample Illumination Light Emitting Diode 589nm (100,000+ hours)
Prism / Dish Artificial Sapphire / Stainless Steel 316 / PEEK (spill barrier)
Prism Seal Silicon/Resin
Interfaces 1 x USB (A), 1 x USB (B), RS232 via USB adaptor (optional accessory)
Power Instrument: 24 V DC, ±5%, <1A
External PSU: 100-240V, 50-60Hz (supplied)
Humidity Range <90% RH (non-condensing)

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