DD-7

DD-7

DD-7

Product catalog summary
Overview: The DD-7 Digital Differential Refractometer is designed for high-accuracy measurement of low-concentration liquids by comparing the concentration differences between two solutions. It is particularly useful for applications involving tea, unsweetened or diet beverages, coffee, herbal extracts, cleaning solutions, and surfactants.
Specifications:
  • Measurement Method: Differential optical refraction.
  • Measurement Range: 0.000 to 2.000% concentration for sucrose solutions, with a refractive index up to 1.50 (nD).
  • Accuracy: ±0.005% for sucrose solutions (0 to 2%) at 30˚C.
  • Minimum Display Unit: 0.001%.
  • Temperature Control: 5˚C to 10˚C above ambient, up to 40˚C (heating only).
  • Ambient Temperature: 10 to 30˚C.
  • Display: Two 24-character lines LCD.
  • Light Source: LED; Light Sensor: Dual-type photo-diode.
  • Output: RS-232C for digital printer DP-63, DP-AD (optional).
  • Power Supply: AC100 to 240V, 50/60Hz; Consumption: 50VA.
  • Dimensions: 36(W) × 35(D) × 14(H) cm; Weight: 5.8 kg.
Key Features:
  • High-accuracy measurement of up to 2% Brix concentration with ±0.005% Brix precision.
  • Simple operation with digital readings to eliminate user errors.
  • Data export capability via RS-232C connection.
Applications:
  • Food and Beverages: Measure low-concentration items like coffee, tea, and diet sodas.
  • Sanitizers and Disinfectants: Measure solutions like hydrogen peroxide with precision.
  • Industrial Solutions: Measure surfactants, anti-rust agents, and metal-working fluids with high accuracy.
Compliance and Manufacturing: All ATAGO products, including the DD-7, are designed and manufactured in Japan, complying with HACCP, GMP, and GLP standards.
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Catalog excerpts

DD-7-1

Digital Differential Refractometer The Ultimate Answer For Monitoring Low-Concentration Liquids High-accuracy measurement is made possible by measuring the difference in concentrations of 2 solutions. Application examples: ♦Tea ♦Unsweetened or diet beverages ♦Coffee or herbal extracts ♦Cleaning and sanitizing solutions ♦Surf

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DD-7-2

The DD-7 measures solutions of up to 2% Brix concentration at the extremely high-accuracy level of ±0.005% Brix. 0.005% (Note that the range of measurement gets narrower at concentrations higher than 10% Brix.) When a reference solution of 8.000% Brix is used, for example, the DD-7 can measure concentrations in the range of 8% to 10% Brix at resolution of 0.001% Brix and precision of measurement of ±0.005% Brix. Note: High viscosity samples may not be suitable for measurement. • Measurement is very simple. Inject a reference solution and a sample solution to respective injection ports, and press...

 Open the catalog to page 2
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.