Installation Proline Promass 83 PROFIBUS DP/PA
20 Endress+Hauser
In order to ensure that the maximum permissible ambient temperature for the transmitter
(–20...+60 °C, optional –40...+60 °C) is not exceeded, we recommend the following orientations:
m= For fluids with very high temperatures (> 200 °C), we recommend the horizontal orientation
with the transmitter head pointing downwards (Fig. H2) or the vertical orientation (Fig. V).
n = For fluids with low temperatures, we recommend the horizontal orientation with the
transmitter head pointing upwards (Fig. H1) or the vertical orientation (Fig. V).
Special installation instructions for Promass F, E and H
"
Caution!
The two measuring tubes of Promass F and Promass E and the one of Promass H are slightly curved.
The position of the sensor, therefore, has to be matched to the fluid properties when the sensor is
installed horizontally .
F06-xxxxxxxx-11-00-00-xx-003
Fig. 9: Promass F, E, H installed horizontally
1 Not suitable for fluids with entrained solids. Risk of solids accumulating.
2 Not suitable for outgassing fluids. Risk of air accumulating.
3.2.4 Heating
Some fluids require suitable measures to avoid loss of heat at the sensor. Heating can be electric,
e.g. with heated elements, or by means of hot water or steam pipes made of copper.
"
Caution!
• Risk of electronics overheating! Consequently, make sure that the adapter between sensor and
transmitter and the connection housing of the remote version always remain free of insulating
material. Note that a certain orientation might be required, depending on the fluid temperature.
→ Page 18,
• With a fluid temperature between 200...350 °C, heating is not permitted for the compact version
of the high-temperature version.
When using electrical heat tracing whose heat is regulated using phase control or by pulse packs,
it cannot be ruled out that the measured values are influenced by magnetic fields which may
occur, (i.e. at values greater than those permitted by the EC standard (Sinus 30 A/m)). In such
cases, the sensor must be magnetically screened (except for Promass M).
The secondary containment can be shielded with tin plates or electric sheets without privileged
direction (e.g. V330-35A) with the following properties:
– Relative magnetic permeability µ
r
≥ 300
– Plate thickness d * 0.35 mm
• Information on permissible temperature ranges → Page 158
Special heating jackets which can be ordered as accessories from Endress+Hauser are available for
the sensors.
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