Flow monitor SI5012 1 Preliminary note You will find instructions, technical data, approvals and further information using the QR code on the unit / packaging or at www.ifm.com. 1.1 Symbols used Requirement Instructions Reaction, result [...] Designation of keys, buttons or indications...
SI5012 Flow monitor 2 Safety instructions • The unit described is a subcomponent for integration into a system. – The system architect is responsible for the safety of the system. – The system architect undertakes to perform a risk assessment and to create documentation in accordance with legal and normative requirements to be provided to the operator and user of the system.
SI5012 Flow monitor 4 Function The device detects flow based on the calorimetric measuring principle and switches the output. For the factory setting the switch point is at LED 7 and the device is set to normally open. The output can be switched to normally closed function. The switch point LED indicates the switching status: orange = output closed;...
Flow monitor SI5012 5 Installation CAUTION During installation or in case of mechanical failure, high pressure or hot media can leak from the system. w Risk of injury caused by pressure or burns. u Ensure that the system is free of pressure during installation.
5.3 Process connection Using process adapters the unit can be adapted to different process connections. A correct fit of the unit and ingress resistance of the connection are only ensured using ifm adapters. For small flow rates, ifm adapter blocks are available.
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Flow monitor SI5012 u Place the flow monitor onto the adapter and tighten the nut. Tightening torque 25 Nm. Ensure that the unit is correctly oriented.
SI5012 Flow monitor 6 Electrical connection The unit must be connected by a qualified electrician. Observe the national and international regulations for the installation of electrical equipment. Voltage supply according to SELV, PELV. u Disconnect power. u Connect the unit as follows: Fig. 11: Wiring diagram...
Flow monitor SI5012 7 Operating and display elements Flow High Operation indication • The LEDs 0...9 represent the range between flow standstill and maximum flow. • The green LEDs show the current flow. • An illuminated LED shows the position of the switch point: –...
SI5012 Flow monitor 8 Set-up u Switch on the supply voltage. w All LEDs light and go out again step by step. During this time, the output is closed if set to normally open and open if set to normally closed.
Flow monitor SI5012 9 Settings 9.1 Changing the switch point For the factory setting the switch point is at LED 7. A change makes sense in the following cases: • The normal flow falls below the representation range of the display, see (Ò Set-up / 12).
SI5012 Flow monitor 9.4 Changing the switching logic Upon delivery, the device is set to normally open. Changeover to normally closed function: u Press [<] for at least 15 seconds. w LED 0 is on, after approx. 5 seconds it flashes.
Flow monitor SI5012 10 Operation After every power on all LEDs light and go out again step by step. During this time, the output is closed if set to normally open and open if set to normally closed. Then the device is ready for operation.
SI5012 Flow monitor 11 Troubleshooting Display Description Corrective measures u Unlock device. The device is permanently locked. LEDs go off briefly when a button is pressed. After approx. 0.6 seconds, the last oper- ating status is indicated. u Ensure correct voltage supply.
Flow monitor SI5012 12 Maintenance, repair and disposal Only the manufacturer is allowed to repair the unit. u Ensure that the sensor tip is free from build-up: • Check the sensor tip for build-up one month after set-up. • Repeat check regularly. Determine check intervals based on the application.