IFM Electronic SI5007 - Safety Instructions; Functions and Features; 3�1 Applications; 3�2 Operating Principle Flow Monitoring

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2 Safety instructions
• Please read this document prior to set-up of the unit� Ensure that the product is
suitable for your application without any restrictions�
• If the operating instructions or the technical data are not adhered to, personal
injury and/or damage to property can occur�
• Improper or non-intended use may lead to malfunctions of the unit or to un-
wanted effects in your application� That is why installation, electrical connec-
tion, set-up, operation and maintenance of the unit must only be carried out by
qualified personnel authorised by the machine operator�
• In order to guarantee the correct condition of the device for the operating time
the device must only be used in media to which the wetted parts are sufficiently
resistant(→Technicaldata).
• The responsibility whether the measurement devices are suitable for the
respective application lies with the operator� The manufacturer assumes no
liability for consequences of misuse by the operator� Improper installation and
use of the devices result in a loss of the warranty claims�
3 Functions and features
3.1 Applications
The unit monitors the flow and the temperature of liquid and gaseous media�
3.2 Operating principle flow monitoring
• The unit detects the flow speed to the calorimetric measuring principle and
switches output OUT1:
- output OUT1 closed if medium is flowing / output open if no medium is flow-
ing�
This applies to the unit on delivery: output = normally open� If necessary you
canchangetheoutputstonormallyclosedfunction(→7.7).Itthenapplies:
output OUT1 open if medium is flowing�
• If the flow speed increases, the switching status changes when the switch point
is reached�
• If the flow speed falls again, the switching status changes when the value "SP
minus hysteresis" is reached�