Heidolph Hei-FLOW Core Notice D'instructions page 69

Operation
Retraction function
By a short return stroke of the pump, the retraction function avoids dripping in dosing
mode.
To activate the retraction function, follow these steps:
➜ Turn off the device.
➜ Press the [Cal] button.
➜
While holding down the [Cal] button, turn the device on again.
– The display shows the currently set pump head.
➜ Release the [Cal] button and press one of the arrow buttons until
(retraction function active) or
➜ Confirm with [Select].
Fast filling/emptying
With the [max] function, the pump can be temporarily set to maximum power for fast
filling/emptying of the connected tube(s), independent of all other setting values:
➜ Turn on the device as described in section „Switching the device on/off" auf Seite
64
➜ Make sure that the rotation movement is stopped.
➜ Use the [reversing] button to select the desired direction of rotation of the pump
head (clockwise/counter-clockwise, observe the direction arrows on the device).
➜ Press and hold the [max] button.
– The pump runs at maximum speed to fill/drain the connected tube(s).
– The pump stops as soon as you release the button.
[r off]
(without retraction) is displayed.
70
[r on]