VariRef

The VariRef Refractometer has a double isolated peltier temperature control system for fast and precise measurements. The system is 21 CFR part 11 ready and the flat sample room design allows for easy cleaning. The LED light source and the self-checking capabilities for cleanliness, environment temperature effects, calibration and more result in a virtually maintenance free product life.

  • Fast temperature control
  • Flat sample room
  • LED light source
  • Virtually maintenance free
  • Control via touchscreen, PC, tablet or Smartphone
  • 21 CFR part 11 ready

Main Specifications

Standard modelsVariRef A
VariRef B
VariRef C
Measuring scaleRefractive Index (RI), Sucrose (%Brix), Standard scales included, freely definable scales, USG
Measuring range1.32000 – 1.58000 RI / 100% Brix (VariRef C)
1.32000 – 1.70000 RI / 100% Brix (VariRef B1)
1.29000 – 1.58000 RI / 100% Brix (VariRef B2)
1.32000 – 1.58000 RI / 100% Brix (VariRef A)
Resolution0.0001 RI / 0.05% Brix (VariRef C)
0.00001 RI / 0.01% Brix (VariRef B)
0.000001 RI / 0.001% Brix (VariRef A)
Precision± 0,0001 RI* / ± 0.05% Brix* (VariRef C)
± 0,00002 RI* / ± 0.02% Brix* (VariRef B)
± 0,00002 RI* / ± 0.02% Brix* (VariRef B)
Repeatability± 0.0001 RI / ± 0.05% Brix (VariRef B)
± 0.00002 RI / ± 0.02% Brix (VariRef B)
± 0.000005 RI / ± 0.006% Brix (VariRef A)
Temperature 
Ambient temperature+ 10° C to + 40°C
Temperature measurementPt 1000 sensor
Temperature range+ 5°C to + 80°C (VariRef C)
+ 5°C to + 100°C (VariRef B)
+ 20°C others upon request (VariRef A)
Resolution0.01°C
Precision± 0.03°C*
Additional Information 
Measurement modeSingle sample or flow through measurement (with optional compartment door)
PrismSapphire (VariRef A+VariRef C)
YAG (VariRef B)
Light source / wavelengthLED, interference filter 589 nm
DisplayNone, 5″ or 7” Touchscreen, 800 x 480 Pixel
OperationTouchscreen**, Keyboard***, Mouse***, Barcode Reader***, Remote via PC/Tablet/Smartphone***
InterfacesEthernet 10/100/1000, RS232, SH connector, USB, WLAN**, Modbus**, Canbus**, Profibus**
ConformityInternational Pharmacopoeia, ASTM, AOAC, DIN, FDA, ICUMSA and others
DimensionsWith Display: 310 x 220 x 235 mm (W x D x H) / Without Display: 310 x 220 x 150 mm (W x D x H)

* Standard conditions  ** Optional   *** Not included in delivery

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