What could be the cause of the TSS portable error messages: Calibration insufficient - or Calibration insufficient +?

Document ID

Document ID TE749

Published Date

Published Date 27/05/2017
Question
What could be the cause of the TSS portable error messages: Calibration insufficient - or Calibration insufficient +?
Summary
TSS portable "calibration insufficient" message
Answer
The error “calibration insufficient -” means a further calibration point with lower concentration is missing in order to receive good results. The error “Calibration insufficient +” means further calibration point with greater concentration is missing in order to receive good results.