RFM742-M Digital Refractometer

Designed with simplicity in mind, RFM742-M refractometer with Brix, RI scales as standard offer digital automatic technology at a low cost.

• Overview

  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.

  Robust 2-decimal 0-100 Brix refractometer for use in factory or lab with automatic temperature compensation. Designed with simplicity in mind, the RFM742-M refractometer with Brix RI scales as standard offers digital automatic technology at a low cost.

  • 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

• Specifications

  Specifications RFM742-M
  Scales
  Refractive Index	1.32 – 1.54
  Sugar (°Brix)	0-100
  User-defined	100
  Resolution
  Refractive Index	0.0001
  Sugar (°Brix)	0.01
  Accuracy
  Refractive Index	±0.00005
  Sugar (°Brix)	±0.04
  Precision (Reproducibility)
  Refractive Index	± 0.00001
  Sugar (°Brix)	± 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)	5 – 80 °C
  AG Fluids	5 – 40 °C
  User-defined	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	3 x USB (A), 1 x Ethernet, 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)