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Visualizations
During normal operations, the display shows the two measured values on the top line
while the bottom row displays the status of the two pumps. For example:
● "7.25pH 286mV"
● "P1 ON P2 020%" (pump 1 ON in ON/OFF mode, pump 2 ON in proportional
mode with indication of the functioning percentage)
In these conditions, pressing the ⇓ or ⇑ button you can display the OFFSET and GAIN
values of the pH and ORP measurements. For example:
● "7.25pH"
● "O=-4 G=1.000"
This information is useful to verify the electrode status. Note that an electrode in
good condition should have an offset close to zero and a gain close to 1.000. When
these values deviate from the ideal ones, it indicates a dead electrode or sensor
aging. During manual working mode, the display shows on the top line the pump to
which the information refers while the bottom row shows the pump status. For
example:
● "Pump 2 manual"
● "ON"
In these conditions, pressing the ON/OFF button allows enabling/disabling the
pump. In case of fault or alarm condition, the pump stops dosing until the normal
working conditions are restored.
Operation of the Electronic Unit
To access the configuration, calibration, and manual mode menus, press the CAL
button. The display will show the following available options:
● Standard Configuration
● Advanced Configuration
● Calibration IN1 (input 1) pH
● Calibration IN2 (input 2) ORP
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