Endress+Hauser Cerabar PMP51B, Руководство по эксплуатации

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Mounting Cerabar PMP51B Analog
16 Hauser
5.1.4 Installation instructions for devices with diaphragm seals
NOTICE
Incorrect handling!
Damage to the device!
‣
The diaphragm seal and pressure transmitter form a closed, calibrated system which
has been filled with diaphragm seal fill fluid. Never open any of the holes for fill fluid.
‣
Ensure strain relief to prevent the capillary from bending (bending radius ≥
100 mm (3.94 in).
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Do not use capillaries as a carrying aid for the diaphragm seals.
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Observe the application limits of the diaphragm seal fill fluid.
General information
In the case of devices with diaphragm seals and capillaries, the zero point shift caused by
the hydrostatic pressure of the filling fluid column in the capillaries must be taken into
account when selecting the measuring cell. If a measuring cell with a small measuring
range is selected, a position adjustment can cause the sensor to go over range (position
adjustment due to zero point offset, caused by the orientation of the liquid column of the
fill fluid). Perform zero point adjustment if necessary.
For devices with a capillary, use a suitable bracket (mounting bracket) for mounting.
When mounting, sufficient strain relief must be provided for the capillary to prevent the
capillary from bending (capillary bending radius ≥ 100 mm (3.94 in)).
Mount the capillary so that it is vibration-free (in order to avoid additional pressure
fluctuations).
Do not mount capillaries in the vicinity of heating or cooling lines and protect them
against direct sunlight.
More detailed installation instructions are provided in the Applicator
" Sizing Diaphragm Seal ".
5.1.5 Orientation
NOTICE
Damage to the device!
If a heated device is cooled during a cleaning process (e.g. by cold water), a vacuum
develops for a short time. As a result of this, moisture can enter the sensor via the pressure
compensation element (1).
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Mount the device as follows.
1
1
1 1
A0038723