Refractometer – Bench-top DD-7 Low-Concentration

Description

Top-of-the-range differential refractometer for very high accuracy measurements of the brix of liquids with a concentration level that is 2% or less, such as tea or diet drinks in the beverage industry.

The high accuracy level of ± 0.005% is made possible by measuring the difference in concentrations of two solutions.

Applications:

  • Unsweetened or diet drinks
  • Tea or herbal extracts
  • Coffee
  • Cleaning and sanitizing solutions
  • Industrial solutions, such as surfactants and metal-working fluids

How to Measure:

  • Measurement is very simple. Inject a reference solution and a sample solution to respective injection ports and press Start
  • Digital readings eliminate reading errors resulting from user subjectivity.
  • Measurement data can be exported to a printer or computer via an RS-232 connection

Features:

  • A differential optical refraction method is used for advanced accuracy levels – it measures the difference in concentrations in two solutions
  • Measurement range: 0.000 to 2.000% in concentration (for sucrose solution)
  • It is possible to measure samples with a refractive index of up to 1.50 (nD) by reference solution, but the samples must be low in viscosity
  • The accuracy level is ± 0.005%, in the case of measurement of sucrose solution (0 to 2%) at 30°C
  • Large user touch pad with digital display

Guarantee:

2 years standard warranty

Model DD-7
Cat.No. 3930
Scale Brix
Method of measurement Differential optical refraction
Measurement Range 0.000 to 2.000% in concentration (for sucrose solution)
It is possible to measure samples with refractive index up to 1.50 (nD) by reference solutuion. (Samples must be low in viscosity.)
Resolution Brix : 0.001%
Measurement Accuracy Brix : ±0.005 (In the case of measurement of sucrose solution (0 to 2%) at 30°C)
Temperature control range Between 5°C and 10°C above ambient temperature; up to 40°C
*Heating only (no cooling)
Ambient Temperature 10 to 30°C
Power Supply AC 100 V to 240 V, 50 / 60 Hz
Dimensions & Weight 36 × 35 × 14cm, 6.2kg
(Main Unit only)
Power consumption 50 VA
Output terminals • Digital Printer DP-63 or DP-AD (Optional)
• RS-232C
  • Refractometer model DD-7
  • power cord
  • instruction manual

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