Linearisation
Indicated by 1 – 9 on the left hand side of the display, followed by a hyphen (-), this screen
allows the setting of the linearisation (in total 9 points).
Linearisation point 1 (of 9)
Press the TOTAL button to select a digit (selected digits flash). Press RESET to change
the selected digit. The flow rate will be set in the top row of the meter and is displayed in
the unit you selected at step 9.1 (unit of measure). In the sample shown above this would
be the flow rate 0.4 liter per minute. On the bottom line of the meter you can set in the
correction of the error in %. In the sample below, the error at a flow rate of 0,4 liter per
minute would be -7,82%; to correct this, +7,82% needs to be set in (the plus symbol [+]
will not be shown).
Once the adjustment of the linearisation is completed, press and hold the TOTAL button
for one second to advance to the next linearisation point.
Linearisation point 9 (of 9)
Number 9 at the left hand side of the display shows the 9th linearisation point. The sample
shows a flow rate of 250.0 liter per minute and a deviation of the flow meter of +0,15%. To
correct this error, -0,15% needs to be set as correction.
NOTE:
Minimum 3 linearisation points needs to be programmed.
The flow rates do not have to be programmed from low to high; the software will
sort the flow rates automatically, no matter at which point (1-9) they are programmed.
To exit the programming mode:
On any screen, press and hold both the TOTAL and RESET buttons. The screen will
revert back to the programmed scale factor, and then flash. Following the three flashes,
the register display will be blank.
NOTE:
Pressing the TOTAL or RESET buttons will turn the display back on.
DOZ03 / DOZ05 / DOZ07 Instruction manual 02/2021
page 23
