Endress+Hauser Proline Promass series, Brief Operating Instructions

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Installation Proline Promass
22 Hauser
Heating
NOTICE
Electronics can overheat due to elevated ambient temperature!
‣
Observe maximum permitted ambient temperature for the transmitter .
‣
Depending on the fluid temperature, take the device orientation requirements into
account .
Under critical climatic conditions, in particular, it is important to ensure that the
temperature difference between the ambient temperature and the fluid temperature is
not >100 K. Suitable measures must be taken, such as heating or insulation.
NOTICE
Danger of overheating when heating
‣
Ensure that the temperature at the lower end of the transmitter housing does not exceed
80 °C (176 °F).
‣
Ensure that convection takes place on a sufficiently large scale at the transmitter neck.
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Ensure that a sufficiently large area of the housing support remains exposed. The
uncovered part serves as a radiator and protects the electronics from overheating and
excessive cooling.
Heating options
If a fluid requires that no heat loss should occur at the sensor, users can avail of the following
heating options:
• Electrical heating, e.g. with electric band heaters
• Via pipes carrying hot water or steam
• Via heating jackets
For detailed information about heating with electrical band heaters, refer to the
Operating Instructions for the device on the CD-ROM provided
Vibrations
The high oscillation frequency of the measuring tubes ensures that the correct operation of
the measuring system is not influenced by plant vibrations.
The operational reliability of the measuring system is not affected by plant vibrations.
5.1.3 Special mounting instructions
Rupture disk
‣
After the rupture disk is actuated, do not operate the measuring device any more.
For detailed information about using a rupture disk, refer to the Operating Instructions
for the device on the CD-ROM provided
Promass A, F, O, Q
Make sure that the function and operation of the rupture disk is not impeded through the
installation of the device. The position of the rupture disk is indicated on a sticker beside it.
The transportation guard must be removed.