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AquaLab 4 Series - User Manual

AquaLab 4 Series
122 pages
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Water Activity Meter
Operator’s Manual
For Series 4, 4TE, 4TEV, DUO, and TEV DUO
Decagon Devices, Inc.
Version: August 2, 2016 09:05:15

Table of Contents

Questions and Answers

  • J
    Janet JacksonSep 10, 2025
    What to do if AquaLab Measuring Instruments displays error 'Firmware is corrupted'?
    • J
      John RivasSep 10, 2025
      If the AquaLab Measuring Instruments displays the error “Firmware is corrupted,” it means the firmware on the instrument is corrupted and needs to be reloaded.
  • A
    Alexander LynchSep 12, 2025
    Why does AquaLab 4 Series Measuring Instruments show no moisture content reading?
    • M
      Mr. Clayton Wyatt MDSep 12, 2025
      If the AquaLab Measuring Instruments displays the message no moisture content reading, make sure that the sample water activity and the instrument controlling temperature are within the scope of the selected moisture sorption isotherm model because the water activity or temperature for that reading is beyond the scope of the moisture sorption isotherm.
  • H
    heatherdavidsonSep 14, 2025
    What causes dew point sensor failure in AquaLab Measuring Instruments?
    • K
      Kristina LoweSep 14, 2025
      If the AquaLab Measuring Instruments displays dew point sensor failure, it means the Cooler is damaged and needs to be serviced.
  • J
    jeanriveraSep 16, 2025
    What does message on screen mean on AquaLab 4 Series?
    • G
      gabriellewaltersSep 16, 2025
      If AquaLab Measuring Instruments displays a message on screen, it means the crystal that runs the firmware is having trouble starting. Occasionally, cycling the power solves the problem. If this message continues to appear, the instrument needs to be serviced.

Summary

Introduction

Customer Support

Information on how to contact Decagon for assistance and support.

General Safety Information

Important safety precautions and warnings for operating the AquaLab.

About AquaLab

AquaLab 4 Specifications

Technical specifications for the AquaLab 4 instrument.

AquaLab Operation Principle

Explanation of the principles and technology behind AquaLab operation.

AquaLab Temperature Effects

How temperature affects AquaLab measurements and its importance.

Water Activity Fundamentals

Water Activity

Definition and significance of water activity in products.

Temperature Effects

How temperature influences water activity measurements and instrument performance.

AquaLab Setup and Operation

AquaLab Package Contents

List of items included in the AquaLab package.

Initial AquaLab Setup

Steps for powering on and preparing the AquaLab for use.

AquaLab Menu Navigation

Measurement Screen Overview

Description of the main measurement screen and its displays.

Instrument Configuration Settings

Accessing and modifying instrument settings via the configuration menu.

AquaLab Cleaning and Care

Cleaning Sensor Block

Detailed steps for cleaning the instrument's block and sensors.

Detailed Cleaning Process

Step-by-step cleaning process for the AquaLab instrument.

Instrument Verification and Calibration

Verifying Water Activity Readings

Steps and standards for verifying the water activity measurement.

Calibration Verification and Adjustment

Details on checking and adjusting the instrument's calibration.

Restoring Factory Defaults

Guide to resetting the AquaLab to its original factory settings.

Sample Preparation Guidelines

Standard Sample Preparation

Step-by-step instructions for preparing samples for the AquaLab.

Handling Volatile Samples

Procedures for measuring samples containing volatile substances.

Performing a Water Activity Reading

AquaLab Measurement Steps

Step-by-step guide for performing a water activity measurement.

AquaLab DUO Moisture Content

DUO Moisture Content Measurement

How to measure moisture content using the DUO model.

Adjusting DUO Moisture Content

How to adjust moisture content readings based on reference methods.

Connecting AquaLab to Computer

AquaLink 4 Software Features

Overview of the AquaLink 4 software for data management.

Terminal Program Connectivity

Instructions for using terminal programs to connect to the AquaLab.

AquaLab Troubleshooting Guide

AquaLab Support and Repair

Recommended Further Reading

Water Activity References

References related to water activity theory and measurement techniques.

Appendix A: Salt Solutions

Preparing Verification Salt Solutions

Instructions for mixing saturated salt solutions for calibration verification.

Appendix B: Temperature Correction

Appendix C: Verification Standards

Declaration of Product Conformity

Certificate of Calibration Traceability

AquaLab 4 Series Specifications

General IconGeneral
Water Activity Accuracy±0.003 aw
Water Activity Range0.030 - 1.000 aw
Measurement Time5 minutes
DisplayLCD
ConnectivityUSB

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