Hanna Instruments HI 904 - Manual (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.
If
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.