Special Application Conditions - Vega VEGADIF 65 Operating Instructions Manual

4 Mounting
Effective pressure lines
Vibrations
Temperature limits
Oxygen applications
Pure gas applications
16
You find general recommendations for wiring of effective pressure
lines in DIN 19210 "Effective pressure lines for flow systems" or the
corresponding national or international standards. When wiring
effective pressure lines outdoors, keep in mind to use a suitable
antifreeze, e.g. by using tube heat tracing. Wire effective pressure
lines with a monotonic decrease of at least 10 %.
In case of strong vibrations at the application position, the instrument
version with external electronics should be used.
Higher process temperatures often mean also higher ambient
temperatures for electronics and connection cable. Make sure that the
upper temperature limits stated in chapter "Technical data" for the
environment of the electronics housing and connection cable are not
exceeded.

4.2 Special application conditions

Oxygen and other gases can be explosive with oils, grease and
plastics so that the following provisions must also be taken:
All components of the plant, such as e.g. measuring instruments
l
must be cleaning according to the requirements of BAM
(DIN 19247)
Depending on the materials used, a certain max. temperature and
l
pressure must not be exceeded in oxygen applications
Danger:
Instruments for oxygen applications must be unpacked just before
mounting. After removing the protective cover of the process fitting, the
label "O₂" will be visible on the process fitting. Penetration of oil,
grease and dirt should be avoided. Danger of explosion!
In addition, VEGA offers oil and grease-free instruments for special
applications such as e.g. pure gas. There are no special restrictions in
respect to the process conditions.
VEGADIF 65 • 4 ... 20 mA/HART