Functions And Features; Function; 4�1 Processing Of The Measured Signals; 4�2 Volumetric Flow Monitoring - IFM Electronic efector 300 SM0505 Operating Instructions Manual

3 Functions and features

The unit monitors liquids�
It detects the 3 process categories volumetric flow, consumed quantity, medium
temperature�
Application area
Conductive liquids with the following properties:
• conductivity: ≥ 20 µS/cm
• viscosity: < 70 mm

4 Function

4.1 Processing of the measured signals
• The unit displays the current process values�
• It generates 2 output signals according to the parameter setting�
OUT1: 3 selection options ���������������������������������������������������������� parameter setting
switching signal for volumetric flow limit values ��������������������������������������� (→ 9.2.1)
or pulse sequence for totalising meter ����������������������������������������������������� (→ 9.3.1)
or switching signal for preset counter ������������������������������������������������������ (→ 9.3.2)
OUT2: 4 selection options
switching signal for volumetric flow limit value ���������������������������������������� (→ 9.2.2)
or switching signal for temperature limit value ����������������������������������������� (→ 9.4.1)
or analogue signal for volumetric flow ����������������������������������������������������� (→ 9.2.3)
or analogue signal for temperature ���������������������������������������������������������� (→ 9.4.2)
OUT2 (pin 2) cannot only be used as an output
but also as an input for an external reset signal: ������������������������������������� (→ 9.3.5)
4.2 Volumetric flow monitoring
The medium flows through a magnetic field� It generates a signal voltage which is
directly proportional to the volumetric flow�
• 2 switching signals for volumetric flow limit values can be provided (output 1
and output 2). For the switching functions → 4.6.
• An analogue signal proportional to the volumetric flow (4���20 mA or 0���10 V)
can be provided on output 2. For the analogue functions → 4.7.
In addition to the flow velocity, the unit also detects the flow direction� The positive
flow direction is marked on the unit by an arrow ("flow direction" → 5.2).
/s at 40 °C
2
UK
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