Endress+Hauser Proline Promass E TB2 HART - Additional Mounting Instructions

Proline Promass E TB2 HART Mounting
Endress+Hauser 21
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
Using an electrical trace heating system
If heating is regulated via phase angle control or pulse packages, magnetic fields can affect the
measured values (= for values that are greater than the values approved by the EN standard (sine
30 A/m)).
For this reason, the sensor must be magnetically shielded: the housing can be shielded with tin plates
or electric sheets without a privileged direction (e.g. V330-35A).
The sheet must have the following properties:
•
Relative magnetic permeability mr ³ 300
•
Plate thickness d ³ 0.35 mm (d ³ 0.014 in)
Vibrations
The high oscillation frequency of the measuring tubes ensures that the correct operation of the
measuring system is not influenced by plant vibrations.
6.1.3 Additional mounting instructions
Rupture disk (optional)
The position of the rupture disk is indicated by an adhesive label affixed over the disk. If the rupture
disk is triggered, the adhesive label is torn and can thus be inspected visually.
i
RUPTUREDISK
12,5BAR+/-20%@20°C
A0007823
►
After the rupture disk is actuated, do not operate the measuring device any more.
!
WARNING
Limited functional reliability of the rupture disk.
Danger to persons from escaping fluids!
►
Do not remove the rupture disk.
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When using a rupture disk, do not use a heating jacket.
►
Make sure that the function and operation of the rupture disk is not impeded through the
installation of the device.
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Take precautions to prevent damage and danger to persons if the rupture disk is actuated.
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Observe information on the rupture disk sticker.