Proline Promass 80H, 83H
Hauser
17
Special installation instructions for Promass H
"
Caution!
The measuring tube of the Promass H is slightly curved. The position of the sensor, therefore, has to be matched
to the fluid properties when the sensor is installed horizontally.
a0004581
Horizontal installation with Promass H
1
Not suitable for fluids with entrained solids. Risk of solids accumulating.
2
Not suitable for outgassing fluids. Risk of air accumulating.
Heating
Some fluids require suitable measures to avoid heat transfer 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 the 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.
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Page 16
• If using an electric trace heating system whose heating is regulated via phase angle control or pulse packages,
influence on the measured values cannot be ruled out due to magnetic fields (i.e. for values that are greater
than the values approved by the EN standard (sine 30 A/m)). In such cases, the sensor must be magnetically
shielded.
The secondary containment can be shielded with tin plates or electric sheets without preferential direction
(e.g. V330-35A) with the following properties:
– Relative magnetic permeability
μ
r
≥
300
– Plate thickness d
≥
0.35 mm
• Information on permitted temperature ranges
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Page 19
Special heating jackets, which can be ordered separately from Hauser as an accessory, are available
for the sensors.
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2
