Functions And Features; Function; 4�1 Processing Of The Measured Signals; 4�2 Volumetric Flow Monitoring - IFM Electronic efector 300 SU8200 Operating Instructions Manual

Ultrasonic flow rate sensor
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3  Functions and features
The unit monitors liquids�
It detects the 2 process categories volumetric flow and medium temperature�
Applications:
• Water
• Glycol solutions
• Oils (viscosity: ≤ 68 mm²/s at 40°C)
Selection of the medium to be monitored → 9�4�9�
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: ����������������������������������������������������������������������������������� parameter setting
switching signal for volumetric flow limit values ���������������������������������� (→ 9�2�1)
OUT2: 2 selection options
switching signal for volumetric flow limit value ����������������������������������� (→ 9�2�2)
or switching signal for temperature limit value ������������������������������������ (→ 9�4�1)
4.2  Volumetric flow monitoring
The flow rate is monitored by an ultrasonic meter, the measured signals by the
electronics�
• 2 switching signals for volumetric flow limit values can be provided (output 1
and output 2)� For the switching functions → 4�4�
4.3  Monitoring of temperatures
• A switching signal for temperature limit values can be provided on output 2� For
the switching functions → 4�4�
4.4  Switching function
OUTx changes its switching state if it is above or below the set switching limits
(SPx, rPx)� The following switching functions can be selected:
• Hysteresis function / normally open (fig� 1): [OUx] = [Hno]�
• Hysteresis function / normally closed (fig� 1): [OUx] = [Hnc]�
First the set point (SPx) is set, then the reset point (rPx) at the requested
distance�
• Window function / normally open (fig� 2): [OUx] = [Fno]�
4

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