What to do if AquaLab Measuring Instruments shows a warning that the sample is too hot?
To avoid this problem with AquaLab Measuring Instruments, ensure that you only measure samples that are at the same temperature as the instrument.
How to fix 'Contaminated mirror' message on AquaLab 4 Series Measuring Instruments?
If the AquaLab Measuring Instruments displays the message “Contaminated mirror,” it means the mirror used for dew point measurements requires cleaning. Follow the cleaning instructions.
What to do if AquaLab 4 Series displays aw below instrument detection limits?
If your AquaLab Measuring Instruments displays aw below instrument detection limits, it means the sample is too dry for the instrument to read accurately. If your sample has a water activity that is less than the detection limits of the instrument, this message appears. You can also try cleaning the mirror and chamber and measuring the sample again.
Why is moisture content not correct on AquaLab 4 Series?
If the moisture content displayed on AquaLab Measuring Instruments is not correct, it may be because the model selected is not correct for the product being tested. Toggle through the available models to find a more appropriate one. If the model is correct but still not giving correct moisture content values, it may be necessary to generate a new model for the product or update an existing model.
How to fix AquaLab Measuring Instruments that does not turn on?
If your AquaLab Measuring Instruments does not turn on, check to make sure your power cord is securely attached to the back of the instrument and plugged into the power outlet. A power surge may have caused a fuse to blow, follow instructions to change the fuses. If the fuse blows again, a failed component may be causing the problem.
What to do if I ran test with wrong model on AquaLab Measuring Instruments?
If you run a test with the wrong model on AquaLab Measuring Instruments, toggle to the correct model on the measurement screen using the up and down arrow keys. The correct model may not be loaded on the instrument. To determine which models are loaded on the instrument, cycle to the menu tab, select Moisture Content and then the loaded models appear.
Why are the readings slow or inconsistent on AquaLab Measuring Instruments?
If you are getting slow or inconsistent readings from AquaLab Measuring Instruments, it could be because the temperature difference between the sample and the block chamber may be too great, the sample needs to equilibrate to instrument temperature before a fast, accurate reading can be made. The sample chamber may be dirty. Some products absorb or desorb moisture very slowly. Your sample may contain volatiles. A fan blade in the block chamber may be broken or bent.
What to do if verification is not correct on AquaLab 4 Series Measuring Instruments?
If verification is not correct on AquaLab Measuring Instruments, it may be because the sample chamber and mirror need to be cleaned. Also, verify and adjust for linear offset.
Why moisture content does not show up on AquaLab 4 Series Measuring Instruments screen?
If the moisture content does not show up on the screen of AquaLab Measuring Instruments, it means moisture content has not been activated. Toggle to menu tab, select moisture content, and select the appropriate model.
Why are water activity readings too high or low on AquaLab 4 Series?
If your AquaLab Measuring Instruments displays water activity readings on verification standards that are too high/low and a linear offset adjustment cannot be made any higher/lower, it may be because the thermopile in your chamber or the chamber mirror may have become contaminated.
General| Water Activity Accuracy | ±0.003 aw |
|---|---|
| Water Activity Range | 0.030 - 1.000 aw |
| Measurement Time | 5 minutes |
| Display | LCD |
| Connectivity | USB |
Information on how to contact Decagon for assistance and support.
Important safety precautions and warnings for operating the AquaLab.
Technical specifications for the AquaLab 4 instrument.
Explanation of the principles and technology behind AquaLab operation.
How temperature affects AquaLab measurements and its importance.
Definition and significance of water activity in products.
How temperature influences water activity measurements and instrument performance.
List of items included in the AquaLab package.
Steps for powering on and preparing the AquaLab for use.
Description of the main measurement screen and its displays.
Accessing and modifying instrument settings via the configuration menu.
Detailed steps for cleaning the instrument's block and sensors.
Step-by-step cleaning process for the AquaLab instrument.
Steps and standards for verifying the water activity measurement.
Details on checking and adjusting the instrument's calibration.
Guide to resetting the AquaLab to its original factory settings.
Step-by-step instructions for preparing samples for the AquaLab.
Procedures for measuring samples containing volatile substances.
Step-by-step guide for performing a water activity measurement.
How to measure moisture content using the DUO model.
How to adjust moisture content readings based on reference methods.
Overview of the AquaLink 4 software for data management.
Instructions for using terminal programs to connect to the AquaLab.
References related to water activity theory and measurement techniques.
Instructions for mixing saturated salt solutions for calibration verification.
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