Heidolph Hei-FLOW Core Notice D'instructions page 67

Operation
Calibrating the pump
To compensate for tube manufacturing tolerances and to ensure the best dosing results,
it is recommended to calibrate the pump at regular intervals and at each tube change.
To calibrate the pump, follow these steps:
➜ Make sure the pump is switched on and running at idle speed (no rotation).
➜ Make sure that all necessary tubing connections are made and the container(s) with
the medium to be transferred is/are connected to the pump.
➜ Make sure that the parameters [pump head] and [inner tube diameter] are set
correctly.
Calibrate volumetric flow:
➜ Use the [Select] button to activate the
desired volumetric flow.
➜
Press the [Cal] button:
Flow ml./min
– The
➜ Start the pump operation by pressing the [rotation on/off] button:
– The pump delivers and automatically switches off after 60 seconds.
➜ Measure the actual volume being pumped and use the arrow keys on the unit to
enter the value.
➜
Press and hold the [Cal] button for at least three seconds:
– The calculated value is converted and the parameter
corrected accordingly.
Calibrate dosing volume:
➜ Use the [Select] button to activate the
desired pump rotation speed.
➜
Use the [Select] button to activate the
➜ Press the [Cal] button:
– The displayed
➜
Start the pump operation by pressing the [rotation on/off] button:
– The pump automatically switches off after 60 seconds, regardless of the actual
volume being pumped.
➜
Measure the actual volume being pumped and use the arrow keys on the unit to
enter the value.
➜ Press and hold the [Cal] button for at least three seconds:
– The calculated value is converted and the parameter
accordingly.
value flashes.
Flow ml./min
value flashes.
[Flow ml/min]
function and enter the
[Flow ml./min]
[Speed rpm]
function and specify the
[Vol ml]
function and define a volume.
[Vol ml]
68
is
is corrected