Decagon Devices AquaLab 4TE - Verification of Calibration After Cleaning

AquaLab
6. Cleaning and Maintenance
36
e. Visually inspect the thermopile and optical sensor for cleanli-
ness. Re-clean if necessary.
4. Additional Drying Time
a. Visually inspect the sample chamber and sensors for contami-
nants, including moisture. If necessary, repeat the cleaning
process using new Kimwipes.
b. Let stand for about 5 minutes to ensure the sample chamber
is dry.
Veri cation of Calibration
After you have cleaned the chamber and other parts of your AquaLab,
it is important to check the instrument’s performance in order to
correct for any linear o set that may have occurred during the clean-
ing process.
Before you check the instrument we recommend that you run a
sample of the activated charcoal pellets provided in your AquaLab
cleaning kit.  is cleans the air inside the chamber, helping it come
back to a stable sampling environment.
Verify the linear o set against known veri cation standards accord-
ing to the procedure described in the next chapter. If a linear o set
has occurred, refer to “adjust for linear o set” section in Chapter 7
for directions on how to correct for linear o set. If, after adjusting
for linear o set, your instrument is still not reading samples cor-
rectly, please contact Decagon for support.