Mounting Steps, Tube Isolating Diaphragm; Mounting Steps External Housing - Vega VEGABAR 51 Operating Instructions Manual

4 Mounting
Sealing/Screwing in hy-
gienic fittings
Wall mounting
16
Use the seal suitable for the respective process fitting. You can find
the components in the supplementary instructions manual "Welded
socket and seals".

4.3 Mounting steps, tube isolating diaphragm

The isolating systems are temperature and pressure-aged at 80 °C
and 18 bar. The zero point is adjusted at 22 °C ±2 °C and a torque of
275 Nm. The defined installation position is: Tube isolating diaphragm
horizontally, VEGABAR 51 vertically.
For installation, proceed as follows:
1 Position VEGABAR 51 with tube isolating diaphragm
2
Tighten the threaded fittings step-by-step once on the right and on
the left
3 Hold VEGABAR 51, to avoid distortion from the defined installation
position.
Caution:
Apart from mounting, the tube isolating diaphragm must not be
permanently under torsion.
4 Check current after mounting. The current must be between 3.9
and 4.1 mA. In case of a deviating value, losen threaded fitting and
mount again.
Information:
By slightly increasing or reducing the torque, the current can be set
exactly to 20 mA.

4.4 Mounting steps external housing

1
Mark the holes according to the following drilling template
2
Depending on the mounting surface, fasten the wall mounting
plate with 4 screws
VEGABAR 51 • Profibus PA