ABB FMT400-VTS Operating Instruction page 8

2.2.4.3 Mounting/Dismounting the tranducer
• When mounting the transducer make sure that its specifications are in accordance with the specifications of
the measuring point.
• Exclusively use the flawless, media-resistant O-ring seal delivered with the transducer for mounting. Do not
use a flat packing.
• Insert the O-ring seal into the respective O-ring groove of the connection flange.
• Handle the transducer with care when inserting it into the pipe. Make sure that the sensor unit is not damaged.
• Screw the transducer to the flange of the insertion pipe. Evenly fasten the screws with the appropriate torque.
Torque for the screws supplied: 87 Nm (unlubricated, without the use of sprung washers).
• When using a pipe component with integrated hot tap fitting make sure that the fitting is in dismounting position
before undoing the screws.
2.2.4.4 Potential risks that may occur during operation
• The surfaces of parts run through by hot fluids may get very hot. Do not touch. Otherwise, there is a risk of
being burnt.
• Aggressive fluids may cause corrosion or abrasion which may result in leakage of fluids under pressure.
• The flange or process gaskets may become leaky due to material fatigue. Media under pressure might escape
then.
8 Thermal Mass Flowmeter FMT400-VTS, FMT400-VTCS (Sensyflow VT-S/VT-CS)
Application according to designation, general safety instructions
42/14-36 EN