VVP10 HART
HART
®
VALVE POSITIONER
INSTALLATION, OPERATION, CONFIGURATION AND MAINTENANCE MANUAL
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2.1.
INSTALLATION CONDITIONS
Ambient conditions must be taken into account when installing the positioner, as performance may be affected by poor
temperature, vibration or humidity conditions. The temperature directly affects the behavior of some electronic
components, so due care must be taken to locate the equipment in order to avoid overexposure to excessive heat.
As the operating principle of the position sensor of the VVP10 HART is magnetic with no mechanical contact, light
vibrations should not influence the correct operation of the positioner. However, it is important that there is no large
variation of the magnetic field on the position sensor, which can happen if large vibrations in the positioner body are
applied. For cases with considerable mechanical vibration, Vivace offers a remote sensor (see section 2.5), which
separates positioner body from magnetic sensor, preventing vibrations from interfering with the measurement.
2.2.
MECHANICAL ASSEMBLY
VVP10 HART housing has an IP66 protection degree, being
immune to water entering its electronic circuit and terminal block, as
long as the cable gland (or conduit of the electrical connection) is
correctly assembled and sealed with non-hardenable sealant.
The covers should also be tightly closed to prevent moisture from
entering, as the threads of the housing are not protected by paint.
The electronic circuit is coated with a moisture-proof lacquer, but
constant exposures to moisture or corrosive media can compromise
its protection and damage the electronic components.
In order to avoid risk of VVP10 HART covers being released
unintentionally due to vibration, for example, they can be locked by
means of a screw, as shown in figure 2.1.
Figure 2.2 shows the dimensional design of VVP10 HART.
The dimensional drawings related to the magnets can be found in
section 2.4.
Figure 2.1 – Cover locks.
WARNING
All installation procedures must be performed by qualified personnel, following the procedures required
by safety regulations. It is recommended that the mechanical installation of the positioner is initially
performed on the system to be measured, with the correct positioning of the magnet and support
appropriate to the assembly. Then the electrical installation must be carried out, with the power
connections and communication with the valve positioner.
