Burkert Type 0250 - Manual (Page 17)

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0250 - 17
english english
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.
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.
note the position query generally takes place on the basis of the drive
position, and not on the position of the valve.
emergency manual
override, adjustable,
connected to the
rotatable valve
carrier - firmly con-
nected to the drive
Button, separates the
drive from the valve
when pressed in