Hanna-instruments HI 83216-01 Manual do Utilizador descarregar pdf (Página 32)

The instrument shows clear warning messages when erroneous conditions appear and when measured values are

outside the expected range. These messages are described bellow.

No Light: The light source is not functioning properly.

Light Leak: There is an excess amount of ambient light reaching the

detector.

Inverted cuvettes: The sample and the zero cuvettes are inverted.

ERRORS AND WARNINGS

• Remove the cuvette and add 5 drops of HI 93710-0

Phenol Red Indicator. Replace the cap and mix the

solution.

• Reinsert the cuvette into the instrument.

• Press the Read key to start the reading. The instrument displays the pH value.

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Hanna-instruments HI 83216-01 Manual do Utilizador Página 32