VEGA VEGABAR 61 Foundation Fieldbus - Manual (Page 14)

1
2
Fig. 4: Temperature ranges
1
Process temperature
2 Ambient temperature
Danger:
Instruments in the version "Oil and grease free for oxygen" should be
unpacked just before mounting. After the protective cover of the
process fitting has been removed, the label "O₂" on the process fitting
is visible. Contamination by oil, grease and dirt should be avoided.
Danger of explosion!
4.2 Mounting steps
For mounting VEGABAR 61, a welded socket is required. You can find
these components in the supplementary instructions manual "Welded
socket and seals".
Seal the thread with teflon, hemp or a similar resistant seal material on
the process fitting thread 1½ NPT.
à Screw VEGABAR 61 into the welded socket. Tighten the hexagon
on the process fitting with a suitable wrench. Wrench size, see
chapter "Dimensions".
Warning:
The housing must not be used to screw the instrument in! Applying
tightening force can damage internal parts of the housing.
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 61 vertically.
Oxygen applica-
tions
Welding the socket
Sealing/Screwing in
threaded versions
14 VEGABAR 61 • Foundation Fieldbus
4 Mounting
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-EN
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