Operating instructions

4.7 Mounting the leakage
sensor
Normally, the control valve is delivered with
positioner and leakage sensor already
mounted.
If the leakage sensor is mounted after the
valve has been installed or it is mounted
onto another control valve, proceed as de
-
scribed in following.
NOTICE
Fasten the leakage sensor using a torque of
20
±
5 Nm.
The hole with M8 thread on the NAMUR rib
should preferably be used to mount the sen
-
sor (Fig. 17).
Note: If the positioner was mounted directly
onto the actuator (integral attachment), the
NAMUR interfaces on either side of the
valve yoke can be used to mount the leak
-
age sensor.
The start-up of the leakage sensor is descri
-
bed in detail in the Operating Instructions
EB 8389-1 EN on EXPERTplus Valve Diag
-
nostics.
EB 8384-6 EN 39
Attachment to the control valve – Mounting parts and accessories
123
Fig. 17 · Mounting the leakage sensor
1 Leakage sensor
2 Screw
3 Plug-type connection