8
-Flow according to the marked flow direction (arrow "flow direction"): meter
adds�
-Flow against the marked flow direction: meter subtracts�
The meter saves the totalled consumed quantity every 10 minutes� After a power
failure this value is available as the current meter reading� So the possible data
loss can be maximum 10 minutes�
The current meter reading can be evaluated via an external parameter setting
software (→ 10.6.5 Activating the IO-Link communication interface).
4.5 Temperature monitoring
An analogue signal (4���20 mA) can be provided on output 2 for temperature moni-
toring. On the analogue functions → 4.7).
4.6 Empty pipe detection
The unit detects when the two electrodes are not wetted by the medium (→ 4.1
Measuring principle for volumetric flow monitoring)� The empty pipe detection can
be activated or deactivated (→ 10.5.7). If it is active and the pipe is empty, the unit
reacts as follows:
> [SEnS] is indicated in the display�
> The flow is set to zero�
The empty pipe detection can be set as time-depending or not time depending (→
10�5�8)�