Instruction Manual
KH Director®
EN
2018-02-19
30
5
Carrying out the KH Value Measurement
5.1
Select Sample volume
Select your desired sample volume to be used by
KH Director
for KH measurement. There are
settings from 50 to 100 ml selectable. The default setting is 80 ml.
TIP
The larger the selected sample volume, the more accurate can be
measured. However, this also increases the consumption of the reagent
liquid.
Depending on your specific application and the desired measuring
accuracy, the measurement with 50 ml sample volume may be sufficient.
5.2
Enter sample tube volume
The sample tube is automatically deaerated before a measurement. After the measurement,
the water in the tube is pumped back into the aquarium. This ensures that a current
measured value is always determined.
For that the
KH Director
requires the exact specification of the
Sample tube volume
. When
calculating the volume, you are supported by a built-in tool. Just click on the calculator next
to the input field for the
Sample tube volume
. Enter the total tube length (including the
sample tube between the
KH Director
and the dosing pump) that you have connected and
confirm with
OK
. The tube volume will automatically be taken over.