Installation; Mounting Dimensions; Installation Conditions; Influence Of The Installation Position - Endress+Hauser Cerabar PMP11 Operating Instructions Manual

Cerabar PMP11, PMP21, PMP23
Endress+Hauser
5

Installation

5.1

Mounting dimensions

For dimensions, see the "Mechanical construction" section in the Technical Information.
5.2

Installation conditions

• No moisture may enter the housing when installing or operating the device, or when
establishing the electrical connection.
• Do not remove the protection cap of the M12 plug terminal until shortly before the
electrical connection.
• Do not clean or touch process isolating diaphragms with hard and/or pointed objects.
• Do not remove the protector on the process isolating diaphragm until just before
installation.
• Always firmly tighten the cable entry.
• Point the cable and connector downwards where possible to prevent moisture from
entering (e.g. rain or condensation water).
• The following instruction applies for devices with a gauge pressure sensor and M12 plug
or valve plug:
NOTICE
If a heated device 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 element (1).
Device could be destroyed!
‣
In this case, mount the device with the pressure compensation element (1) pointing
diagonally downwards where possible or to the side.
1
5.3

Influence of the installation position

Any orientation is possible. However, the orientation may cause a zero point shift i.e. the
measured value does not show zero when the vessel is empty or partially full.
1
1
C
A
B
Installation
1
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