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Home > Laboratory > Optical Instruments and Microscopes > Refractometers > Digital Refractometers > RFM900 Touch Screen Refractometer > Touchscreen Refractometer RFM990-AUS32 Bellingham + Stanley 19-73

Touchscreen Refractometer RFM990-AUS32 Bellingham + Stanley 19-73
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Touchscreen Refractometer RFM990-AUS32 Bellingham + Stanley 19-73

PART NO: X-19-73
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The RFM990-AUS32 refractometer is high accurate and specifically designed to meet the stringent needs of the chemical manufacturing industry. It is compliant with the strictest of ISO procedures in relation to the manufacturing of urea-based NOx reduction agents that are used as diesel exhaust fluids AUS32 and AdBlue®. In addition to compliance with ISO 22241 this refractometer is fitted with urea scales and temperature compensation along with a method that allows input of both the F factor and biuret content of the solution included in the analysis.

Some of the benefits of the RFM990-AUS32 refractometer include:

  • Widest RI range
  • Highest precision (±0.000005 RI)
  • MEAN Method (USP/EP/BP)
  • All RFM900s conform to ASTM D 1218 1747 2140 & 5006
  • Petrochemical model
  • Premium performance
  • Conforms to ISO 22241
  • AUS32 Method (input criteria)
  • RFID user identity
  • Data storage
  • Limit checking

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Measurement Specifications
  RFM990-AUS32

Scales
Refractive Index (RI)
% Urea mass/mass (AUS32)


1.33 – 1.70
0-40

Resolution 
Refractive Index
% Urea mass/mass (AUS32)


0.000001
0.01

Accuracy 
Refractive Index
% Urea mass/mass (AUS32)


±0.00002
±0.02
Precision 
Refractive Index 
% Urea mass/mass (AUS32) 
±0.000005 
±0.005 
Other Scales User defined – Urea % (AUS32) DEF FSII  etc. or custom scales loaded by PC software
Automatic Temperature Compensation Urea ICUMSA (sugar) AG None or User Defined
Temperature Control Internal Peltier Device
Temperature Accuracy  ±0.02 °C (at 20 °C)
Temperature Stability ±0.01 °C (at 20 °C)
Working Temperature Range

0 °C or 10°C below ambient which ever is the greater to 80°C
(for AUS32 performance – 20°C is mandatory)
Temperature Stability Checks

None/delay time/repeatability/Smart
(independently set by Method)
Sample Temperature Range 20 to 30 °C
Reading Time (seconds) 15
Ambient Humidity Range < 90% RH

 

Physical Specifications
Prism Artificial Sapphire
Prism Dish 316 Stainless Steel 
Interfaces 3 x USB (A) 1 x USB (B) 1 x Ethernet RS232 via USB adaptor (optional accessory)
Sample Illumination Light Emitting Diode (life 100 000hr +) 589nm
Case Material ABS
Prism Gasket Kalrez®
Catalogue Number4.694 495
Manufacturer P/n19-73
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