ProMinent DULCOTEST DT3 Instrucciones De Servicio página 17

Methods
To repeat the analysis:
Zero
Press the ZERO/TEST key again.
Test
Note:
If "HI" is shown in the display instead of a result, this indicates
that the measuring range has been exceeded. Dilute the sample
solution with a defined amount of distilled water or repeat the
analysis with the high measuring range.
Measurement accuracy: approx. 2% from end of measuring
range
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