13
6.4.3 To assemble
ViscoSense
®
3
sensor
1. Check the O-ring for damage, before installing the
ViscoSense
®
3
sensor. Replace if necessary.
Make sure only one original o-ring is installed.
2. Remove transport locking cap from bottom side of flow tube.
3. Please make sure not to damage the DLC coating during installation.
Without the transport locking cap the sensor is not protected against excessive
mechanical shocks which can occur during handling.
4. Install sensor carefully in housing with the closed surface facing the flow, illustrated in figure 8.
Make sure the flow tube closed surface is pointing towards the inlet of the sensor
housing, see figure 8.
The sensor will not work correctly if installed wrongly.
Check if the position of the hole inside the housing and the fixation pin on the sensor
match.
5. Tighten the nut (1) by hand. If there is a temperature difference between the sensor and the
housing you should wait until they have the same temperature before tightening the nut.
6.
Tighten the nut (1) with a wrench with a recommended torque of 100 Nm.
Make sure that all flange bolts and nuts are tightened correctly before re-pressurizing the
system.
See chapter 15.1
