Hach-Lange PHC10130 User Manual - Manual (Page 10)

Message or symptom Possible cause Action
Drifting/Inaccurate readings Incorrect settings Measurement Options—Make sure that Temp Correction
(Correction Factor if not set as NaCl) and reference
temperature are both correct.
Calibration Options—Make sure that Standard Value,
Reference Temperature and Temp Correction are all
correct.
Mineral or sample buildup on
cell Clean the probe (refer to Clean the probe on page 8).
CO2 absorption in LIS/high
purity samples Isolate LIS/high purity samples to prevent sample
contamination.
Bubbles trapped under probe
tip Gently shake the probe until bubbles are removed.
Calibration failed - Out of
limits/Out of range Incorrect settings Measurement Options—Make sure that Temp Correction
(Correction Factor if not set as NaCl) and reference
temperature are both correct.
Calibration Options—Make sure that Standard Value,
Reference Temperature and Temp Correction are all
correct.
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© Hach Company/Hach Lange GmbH, 2010, 2013. All rights reserved. Printed in U.S.A. 05/2013, Edition 2