Installing The Sensor Modules - Endress+Hauser Deltabar FMD72 Brief Operating Instructions

Deltabar FMD72
6.5

Installing the sensor modules

• The nameplate on the sensor module specifies where the sensor module is typically installed:
HP (bottom)
LP (top)
For further information see the "Function" section.
• Due to the orientation of the sensor modules, there may be a shift in the zero point, i.e. when
the container is empty or partially full, the measured value does not display zero. You can
correct this zero point shift: see "Commissioning without an operating menu"(® ä 28) or
the "Position adjustment" section(® ä 32) .
• Always install the sensor module HP below the lowest measuring point.
• Always install the sensor module LP above the highest measuring point.
• Do not mount the sensor modules in the filling curtain or at a point in the tank which could
be affected by pressure pulses from an agitator.
• Do not mount the sensor modules in the suction area of a pump.
• The adjustment and functional test can be carried out more easily if you mount the sensor
modules downstream of a shutoff device.
• If a heated sensor module is cooled during the cleaning process (e.g. by cold water), a vacuum
develops for a short time, whereby moisture can penetrate the sensor through the pressure
compensation (3). If this is the case, mount the sensor with the pressure compensation (3)
pointing downwards.
• Keep the pressure compensation and GORE-TEX® filter (3) free from contamination.
• Do not clean or touch process isolating diaphragms with hard or pointed objects.
Endress+Hauser
max. 380°
Installation
2 mm
A0017506
13