Digital Refractometer with ATC and Keypad, SKU: 19-20, RFM742-M -  Bellingham+Stanley UK

Robust 2-decimal 0-100 Brix refractometer for use in factory or lab.

Designed with simplicity in mind, RFM700-M Series refractometers with Brix, RI scales as standard offer 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

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 RFM742 is a 2-decimal place instrument ideal for use in beverage plants.

The RFM742-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.

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 conversion table.

Specification : 

• 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	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)