Preliminary note • An instruction is indicated by “►”: Example: ► Check whether the unit operates correctly� • A reaction to the action is indicated by ">": Example: > LED 9 lights� 1 Safety instructions • Please read the product description prior to set-up of the unit� Ensure that the product is suitable for your application without any restrictions�...
2 Functions and features 2.1 Application area The unit monitors the flow of liquid and gaseous media� 2.2 Operating principle flow monitoring • The unit detects the flow speed to the calorimetric measuring principle and switches the output: - output closed if medium is flowing / output open if no medium is flowing� This applies to the unit on delivery: output = normally open�...
3 Installation Using process adapters the unit can be adapted to different process connections� • Adapters have to be ordered separately as accessories� A correct fit of the unit and ingress resistance of the connection are only ensured using ifm adapters� •...
3.2 Sources of interference in the pipe system Components integrated in the pipes, bends, valves, reductions, etc� lead to turbu- lence of the medium� This affects the function of the unit� Recommendation: Adhere to the distances between sensor and sources of interference: 5...10 x D 3...5 x D...
4 Electrical connection The unit must be connected by a qualified electrician� The national and international regulations for the installation of electrical equipment must be adhered to� Voltage supply to EN 50178, SELV, PELV� ► Disconnect power� ► Connect the unit as follows: 3 BU 3 BU A: SI5000 (positive switching);...
6 Set-up and settings for water (For media other than water → 7�1: Low flow adjustment)� ► Switch on the supply voltage� > All LEDs light and go out again step by step� During this time the output is closed (if configured as normally open)� The unit is in the operating mode� ►...
6.2 High flow adjustment (optional) The unit determines the existing flow as normal flow and adapts the display repre- sentation (all LEDs except the switch point LED light green)� ► Let the normal flow circulate in the installation� ► Press the pushbutton and keep it pressed�...
7.3 Restore the factory setting (reset) ► Press the pushbutton for at least 15 s� > LED 9 lights, after approx� 5 s it flashes� > After approx� 15 s LEDs 0���9 flash orange� ► Release the pushbutton� All settings are reset to the factory setting: - operating area: 5 ���100 cm/s for water - switch point: LED 7 - output function: NO...
9 Operation After every power on all LEDs light and go out again step by step (during this time the output is closed if configured as normally open)� The unit is then ready for operation� In case of power failure or interruption all settings remain� Operating indicators Green LED bar: Current flow within the representa- tion range�...
11 Scale drawing 1: LED bar display 2: set button 3: tightening torque 25 Nm 12 Technical data Application area ����������������������������������������������������������������������������������������Liquids and gases Operating voltage [V] ����������������������������������������������������������������������������������������19 ��� 36 DC Current rating [mA] ����������������������������������������������������������������������������������������������������������250 Short-circuit protection, pulsed; reverse polarity / overload protection Voltage drop [V] �������������������������������������������������������������������������������������������������������������<...
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Liquids Medium temperature [°C] ..................-25 ... +80 Setting range [cm/s]....................3 ... 300 Greatest sensitivity [cm/s] ..................3...100 Temperature gradient [K/min] ..................300 Gases Medium temperature [°C] ..................-25 ... +80 Setting range [cm/s]....................200 ... 3000 Greatest sensitivity [cm/s]..................200 ... 800 Switch point accuracy [cm/s] ................± 2...± 10 Hysteresis [cm/s] ......................2...5 Repeatability [cm/s] ......................1...5 Temperature drift [cm/s x 1/K]..................0.1...
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