Classic Abbe refractometer
AR4 – refractive index and %Brix can be measured and read via the eyepiece
Item number AR4 Category Abbe refractometer Tags Refractometer, Abbe, Digital refractometers, Abbe refractometer
The AR4 is a classic Abbe refractometer. The scales can be set manually using the drive knob and the refractive index and Brix values are read off using an eyepiece. The temperature is measured with the integrated digital thermometer and displayed on the LCD. The AR4 refractometer can be connected to a circulation thermostat for temperature control. This device can be used in a wide range of applications: for identity checking, purity control and concentration determination of raw materials, semi-finished products and end products or for determining the sugar concentration as well as for incoming and outgoing goods inspection.
Basic functions
| Specification | Abbe refractometer AR4 model |
|---|---|
| Measurement range | nD 1.3000-1.7200 0-95 %Brix |
| Temperature control range 1) | Retrofittable |
| Measurement accuracy 2) | nD ±0.0002 ±0.1 %Brix |
| Accuracy of temperature control 1) | Retrofittable |
| Resolution | nD 0.0005 0.25 %Brix |
| Wavelength | 589 nm |
| Temperature measurement accuracy | ±0.5 °C |
| Temperature measurement resolution | 0,1 °C |
| Temperature control 1) | Retrofittable |
| Scales | Refractive index (nD), concentration of sucrose (%Brix) |
| Adjustment | About adjusting screw |
| Parts in contact with the sample | Optical Flint glass (SF4) |
| Operation | drive knob |
| Interfaces | 1 x RS-232, 1 x RS-422 |
| Dimensions (W x H x D) | 100 mm x 270 mm x 190 mm |
| Weight | 2.5 kg |
| Operating voltage | 7.5 V |
| Power consumption (max.) | 15 W |
¹) Requires circulation thermostat PT31
²) Under normal conditions for measurement of refractive index (λ = 589 nm, 20 °C, 1013 hPa, 50 % relative humidity)
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