6
4 Function
• The unit detects the flow based on the magnetic-inductive volumetric flow
measuring principle�
• The unit also detects the medium temperature�
• It features an IO-Link interface�
• The unit displays the current process value�
4.1 Processing of the measured signals
The unit generates 2 output signals according to the parameter setting�
OUT1/IO-Link:
Parameter setting
-Analogue signal for temperature
-Communication interface
OUT2:
Parameter setting
-Analogue signal for volumetric flow quantity
4.2 Direction of flow
In addition to the flow velocity and the volumetric flow quantity, the unit also de-
tects the direction of flow�
4.2.1 Determination of the direction of flow (Fdir)
An arrow with the text "flow direction" on the unit indicates the positive flow direc-
tion� The flow direction can be inversed (→ 10.4.4)�
► Use the supplied label to mark the changed flow direction (new positive
direction of flow)�
Flow...
Process value display
corresponds to the marked flow direction
+ (positive)
against the marked flow direction
- (negative)
4.3 Consumed quantity meter
The unit has an internal mass flow meter which continuously totals the volumetric
flow quantity� The total corresponds to the current consumed quantity�
• The quantity meter takes account of the flow direction for totalisation:
