Watson-Marlow 323E, 323S, 323U and 323Du User Manual
20
14 Manual operation
You can adjust the speed on the display while the
pump is stopped or running.
Use the
UP
key to increase the set speed. Use the
DOWN
key to reduce the set speed. We recommend
that the speed is reduced to a minimum before start-
ing the pump.
The 323E increments in steps of 5rpm. The 323S,
323U and 323Du increment in steps of 1rpm.
Press the
DIRECTION
key to reverse the direction of
rotation.
The direction is shown by the rotation symbol. The di-
rection may be changed while the pump is stopped or
running.
Start the pump with the
START
key.
The rotation symbol will move to confirm that the pump is operating. The sym-
bol is static when the pump is stopped.
Stop the pump with the
STOP
key. The pump will stop immediately.
The display will continue to show the previous speed and direction. The pump
will return to this speed when the
START
key is pressed again.
You can reduce the pump speed to 0 rpm with the
DOWN
key. The pump is still
in the running state and the rotation symbol will continue to move. Press the
UP
key to return the pump to the minimum speed.
E, S, U, Du
