Endress+Hauser Deltabar M PMD55 Installationsanleitung Seite 3

Disassembly of flanges and gaskets
• After an exchange of flanges or gaskets, the technical characteristics will be outside the specifications, the instrument will measure with slightly
reduced accuracy. The error rate can be max. 3 mbar, this is independent form the measuring range.
• The specifications shown in technical data sheets can only be accomplished in the regular manufacturing process.
The reason is a lack of conditions available in normal production, such as controlled temperature, adjusted air pressure, constant air humidity.
• Follow exactly the description in order to minimize the measured error.
1
18/19 mm
Assembly of flanges and gaskets
1
5
Clean both gaskets carefully and insert them into the respective sealing grooves.
Clean both O-Rings carefully, no sealing surface may be damaged or show any marks or dents.
Clamp the flanges tight and parallel to the measuring cell, take care that the gaskets and O-ring do not slide out of position.
Depending on the gaskets and service the screws were secured with lock washers or special screws, covered with glue, are used.
It is recommended to use new screws, because the glue can be activated once only. 
If the original screws are used again, it is necessary to place lock washers between the flanges and the nuts.
Tighten the screws alternately in a crosswise manner. Please observe the tightening torques and holding time listed in the following table.
Secure the screwed connection with locking varnish.
Endress + Hauser
2
Flansch01
2
Flansch05
1
3
18/19 mm
2
4
x Nm
1
3
4 2
3
Flansch02
3
Flansch06
6
Flansch09
Flanges, gaskets and mounting set
4
Flansch03
4
18/19 mm
Flansch07
Flansch10
Flansch04
Flansch08
3