Fresh Water Tank Display - HAKO Scrubmaster B 260 R Service Booklet

2.2 Brief description

2.2.2 Fresh water tank display

The machine has a fill level indicator for the fresh water tank in the MFA which
displays the current fill level in steps of 20 %.
The fill level is measured via a differential pressure sensor. The pressure sensor is
connected to an immersion tube via a hose which is located next to the water filling
opening of the fresh water tank. The immersion tube extends to just above the bottom
of the fresh water tank. A certain pressure is present at the pressure sensor via the
immersion tube and the hoses, which is converted into an electrical signal by the
electronics of the pressure sensor. This signal is evaluated by the machine control unit
and shown on the display as a fill level signal.
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