Operating And Display Elements; Emergency Manual Override; Optical Position Indicator - Burkert 0258 Instructions De Service

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OPERATING AND DISPLAY ELEMENTS

Emergency manual override

With the emergency manual override, you can adjust the valve regardless of
the position of the drive.
Press the button in (see illustration) to separate the drive from the valve.
Turn the emergency manual override into the desired position while holding
the button in.
If the drive is driven over the complete rotary range, the emergency manual
override latches in again in the neutral position.
NOTE

Optical position indicator

The optical position indicator results from the position of the emergency
manual override.
Turn the emergency manual override the the right: outlet port A closes and
outlet port B opens at the same time.
Turn the emergency manual override to the left, outlet port B closes and
outlet port A opens.
The transition is flowing.
The position query generally takes place on the basis of the
drive position, and not on the position of the valve.
Coupling bell, firmly
connected to the
drive
Button, separates
the drive from the
valve when pressed
in
Emergency manual
override, adjustable,
connected to the
rotatable valve
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