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5.2 Volumetric flow monitoring
The flow is monitored by a calorimetric measuring system�
• 2 switching signals for volumetric flow limit values can be provided (output 1
and output 2)� Switching functions
• An analogue signal which is proportional to the volumetric flow (4���20 mA) can
be provided on output 2� Analogue function
�
5.3 Consumed quantity monitoring (totalizer function)
The unit has an internal quantity meter which continuously totals the volumetric
flow� The sum corresponds to the current consumed quantity since the last reset�
• Output 1 can be configured as pulse output�
Output 1 provides a counting pulse each time when the value set in [ImPS] is
• The current meter reading can be displayed�
• In addition the value before the last reset is stored� This value can also be
displayed�
The meter saves the totalled consumed quantity every 10 minutes� After a power failure
this value is available as the current meter reading� If a time-controlled reset is set, the
elapsed time of the set reset interval is also stored� So the possible data loss can be
maximum 10 minutes�
The meter can be reset as follows:
• Manual reset
• Time-controlled automatic reset
