14
Installation using the PEEK sealing ring, fig. 6-3
► Replace the green flat seal (1) with the black flat seal (4)�
The flat seal (4) is supplied with the article�
► Slide the PEEK seal (3) onto the sensor tip until the end stop (cone)�
► Slightly grease the thread of the sensor using a lubricating paste which is
suitable and approved for the application�
► Screw the sensor into the respective process connection and tighten it�
Max� tightening torque: 20…25 Nm
► After installation check the tank / pipe for ingress resistance�
5.2.3 Installation LMT2x2 and LMT3x2 in existing tuning fork adapters
Installation in existing tuning fork adapters with flush seal via O-ring
(→ 4.3.3 Application example installation in existing tuning fork adapters)�
► For use of process connections from other manufacturers:
Adhere to installation location / environment (→ 5.1)�
► Observe the mounting remarks of the manufacturer of the existing adapter!
► Insert the green flat seal (1), fig� 6-5, and/or check its position�
It seals the gap on the back between the sensor and the adapter�
► Slide a suitable, original O-ring and a possibly existing spacing ring of the
adapter over the sensor the right way round (G 3/4) and/or check the position
of the adapter (G1)�
► Check the state and material of the O-ring, replace if necessary�
► Slightly grease the thread of the sensor using a lubricating paste which is
suitable and approved for the application�
► Screw the sensor into the adapter and tighten at the hexagonal nut (2),
fig� 6-6, until the sensor touches the end stop (3) of the welding adapter�
Max� tightening torques for the hexagon*
)
(2), fig� 6-6:
LMT2x2 *) AF 32 75 Nm
LMT3x2 *) AF 36 100 Nm
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