Installation
Page 15 FA 550 V1.00
10 Installation
Installation, electrical installation, commissioning, operation and maintenance of the device
must only be carried by qualified personnel, which were authorized by the plant operator.
The personnel must read the operating instructions and understand and follow their
instructions.
If carrying out welding work on the pipeline the grounding of the welding unit is not allowed to
be done over the FA 550 itself.
The installer has to ensure that the FA 550 is connected according to the electrical
connection diagrams properly.
The existing/ applicable national regulations governing opening and repair of the device have
to be applied.
The device fulfills the general safety requirements in accordance with EN 61010-1,
the EMC requirements of IEC / EN 61326 and NAMUR recommendation NE 43.
10.1 Installing directly into the process
If installing directly in the process must be done in the depressurized
state of the line, e.g. by using a stop valve should at both sides of the
installation point.
This makes it easy to remove the transmitter for maintenance and
calibration.
Insert the probe into the process and screw it as tight as possible by
hand. If there is a sealing ring, check the correct centering and tighten
the screw connection with a torque of 25-30 Nm..
It is not permitted to use a sealing ring with a NPT 1/2“ thread.
Appropriate PTFE sealing tape or sealant should be used instead..
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