7
UK
-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 (→ 10.5.5 Activating the IO-Link communication interface)�
4.4 Empty pipe detection
The unit detects when the two electrodes are not wetted by the medium� The
empty pipe detection can be activated or deactivated (→ 10.4.7)� 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 (→
4.5 Analogue function
• The unit provides an analogue signal that is proportional to the volumetric flow
quantity and the medium temperature�
• Within the measuring range the analogue signal is 4���20 mA�
• If the measured value is outside the measuring range or in the event of an
internal error, the current signals indicated in Figure 1 are provided�
• The measuring range is scalable:
[ASP] determines at which measured value the output signal is 4 mA�
[AEP] determines at which measured value the output signal is 20 mA �
Minimum distance between [ASP] and [AEP] = 20 % of the final value of
the measuring range�
