Ultrasonic flow meter SU2020 SU8020 SU2021 SU8021 SU2621 SU8621
9
5 Installation
CAUTION
If the medium temperature is above 50 °C (122 °F), parts of the housing can increase in
temperature to over 65 °C (149 °F).
w Risk of burns.
u Protect the housing against contact with flammable substances and unintentional
contact.
u Ensure that the system is free of pressure during installation.
u The rules and regulations for the installation and operation of compressed air equipment
must be observed.
ATTENTION
No functional earthing when installed in an ungrounded pipe system (e.g. plastic pipes).
w Deficient operating function.
u Ground the device. Ground brackets for the M12 connector are available as accessories,
see documentation.ifm.com.
5.1 Process connection
Using process adapters the unit can be adapted to different process connections.
Information about available accessories at documentation.ifm.com.
The optimum function is not ensured when using components from other manufacturers.
Fig.1: process connection
1: pipe 2: adapter
3: seal (only units with G-thread) 4: sensor thread
5a: hexagonal 5b: hexagonal (only SU8621)
u Grease the threads of the process connection, adapter and sensor. Use a lubricating paste which
is suitable and approved for the application.
u Screw the adapter into the pipe.
u Place the seals and fit the unit. Observe the direction of flow (Ò Flow direction/37).
u Screw the adapter to the sensor thread until it is hand-tight.
u Tighten the two adapters in opposite direction using a torque wrench applying a tightening torque
of 30Nm. Fix the unit at the hexagon using a spanner.
For SU8621: Use the hexagons on both sides of the unit for fixing.
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