Lighttells AW-600

Quality control with the Lighttells AW-600 Water Activity Analyzer

When it comes to the quality of coffee, water activity plays an important role. Water activity (= aw; simplified as the presence of water in green coffee) is measured by determining the water vapour pressure in a substance (= green coffee) and comparing it with the vapour pressure of pure water at the same temperature. 

In coffee, water activity influences taste, aroma and health. Too much water in green coffee promotes the formation of bacteria, yeasts and moulds - and you don't want any of that in your cup. For quality assurance purposes, the SCA has therefore defined that the water activity of Specialty Coffee must not exceed 0.70 aw.

The Lighttells AW-600 Water Activity Analyzer measures the water activity reliably and precisely. There are 2 variants of measurements: The quick measurement (duration: approx. 6 minutes) and a detailed measurement (duration: approx. 12 - 60 minutes). The handy device is very robust and easy to use. It is ideal for coffee producers, roasters, people in the coffee trade and quality control of coffee.

The main features

• Quick mode (for quick results in 6 minutes) and Equilibrium mode (for detailed results in 12 - 60 minutes)
• Easy calibration
• Touch panel
• Metal housing (fast adjustment to ambient temperature) 
• Very easy to use
• High airtight test chamber, high stability
• Built-in rechargeable battery 
• Stores up to 100 results
• Calendar and time settings 
• Automatic energy saving mode

Technical details

• Sensor: Relative humidity sensor
• Display size: 1.6" / 128 x 64 mono OLED
• Application range: 0 - 40 °C , 0.05 - 0.99Aw , 5 - 99 %RH
• Accuracy: AWQ Mode: ±0.015 aw , AWE Mode: ±0.01 aw
• Duration result display : AWQ mode: up to 6 min / AWE mode: 12 min +
• Resolution: 0.001Aw
• Working temperature: 0-45 °C
• Memory capacity: 100 measurements 
• Battery: Li-ion 1150mAh battery
• Charging capacity: 5V, 0.5A 
• AC adapter: 110 - 240V, 50/60Hz
• Dimensions: 95mm (L) x 95mm (W) x 137mm (H)
• Weight: 328g
• Certificates: CE, FCC, RoHS

Scope of delivery

• Lockable aluminium case
• Lighttells AW-600 water activity meter
• Sample holder
• Metal stand
• 5V power adapter
• Micro USB power cable 
• 3 sample cups
• Bottle
• Brush
• User manual (English)

Download Product Specification & User Manual

Here you can download the product specification and the user manual (pdf):

Product-specification-Lighttells-AW-600

User-Manual-Lighttells-AW-600