Hanna-instruments HI 904 Manuel d'utilisateur télécharger pdf (Page 77)

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METHODS

5.5.10.6 Generator Current Mode

This option allows the user to select the generator electrode current mode:

Auto:

The titrator will dynamically select the optimal current level (50-400 mA) depending

on the dose size and the electrical resistance of the reagent.

Fixed (400 mA):

The titrator will always use 400-mA pulses.

Note: If the generator is unable to produce enough current (depending on the Generator

Current Mode), an error message will be displayed and the titration will be stopped.

5.5.10.7 Signal Averaging

This option enables averaging of the mV reading when enabled.

1 Reading

is selected, the filtering is disabled. The titrator will take the last reading and

places it into a “moving window” along with the last 2, 3 or 4 readings (depending on the

selected option). The average of those readings is displayed and used for calculations.

Averaging more readings is helpful when a noisy signal is received from the electrode.

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Hanna-instruments HI 904 Manuel d'utilisateur Page 77