How can a “nan” NTU message during calibration of the TL23 Turbidimeter be resolved?

Document ID

Document ID TE9085

Version

Version 3.0

Status

Status Published

Published Date

Published Date 10/02/2018
Question
How can a “nan” NTU message during calibration of the TL23 Turbidimeter be resolved?
Summary
“nan” message on TL23 Turbidimeters
 
Answer
If the TL23 Turbidimeter (Product # LPV444.99.00210, LPV444.99.00120, LPV444.99.00310, and LPV444.99.00320) displays “nan” NTU during calibration, reset the meter to factory calibration and then try again. To reset the meter to factory calibration, push Calibration, then Options, then Reset to Factory Calibration.


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