Mounting; Application Conditions; Oxygen Applications; Instructions For Handling - Vega VEGADIF 65 Operating Instructions Manual

4 Mounting

Suitability for the process
conditions
Process and ambient
temperature
Oxygen applications
18
4 Mounting
4.1

Application conditions

Before mounting, setup and operation, take note that the pressure
transmitter as well as the chemical seal were selected according to
measuring range, version and material suitable for the process condi-
tions. The load limits must be maintained in order to guarantee the
specified accuracy.
Caution:
In dangerous substances such as e.g. oxygen, acetylene, combusti-
ble or toxic products as well as in refrigerating plants, compressors,
etc., the pertinent instructions must be observed in addition to the
general regulations.
Take note of the following issues in respect to the process and ambi-
ent temperature:
•
Mount the differential pressure transmitter in such a way that the
permissible process and ambient temperature limits are neither
underrun nor exceeded.
•
Take the influence of convection and heat radiation into account
•
When selecting the chemical seals, make sure that the fittings and
flanges are pressure and temperature resistant
•
For this purpose select the suitable material and pressure stage
•
Mount in such a way that plus and minus side have the same
ambient temperatures to keep the temperature influences low
4.2 Oxygen applications
Oxygen and other gases can be explosive when brought into contact
with oils, grease and plastics, so the following measures must also be
taken:
•
All components of the plant, such as e.g. measuring instruments
must be cleaned oil and grease-free for oxygen applications
according to the requirements of BAM (Federal Institute for Materi-
als Research and Testing)
•
Max. temperatures and pressures determined with oxygen appli-
cations must not be exceeded, see chapter "Technical data" and
"Chemical seals with vacuum applications", also keep sealing
material in mind
Danger:
Instruments for oxygen applications must be unpacked just before
mounting. After removing the protective cover of the process fitting,
the label "O " will be visible on the process fitting. Penetration of oil,
2
grease and dirt should be avoided. Danger of explosion!
4.3

Instructions for handling

•
Instruments must be protected against soiling and strong fluctua-
tions of the ambient temperature
Chemical seal CSB • for VEGADIF 65