Installation Promag 53 PROFIBUS DP/PA
26 Endress+Hauser
3.3.3 Installing the Promag L sensor
"
Caution!
• The protective covers mounted on the two sensor flanges (DN 25 to 300 / 1 to 12") are
used to hold the lap joint flanges in place and to protect the PTFE liner during
transportation. Consequently, do not remove these covers until immediately before the
sensor is installed in the pipe.
• The covers must remain in place while the device is in storage.
• Make sure that the lining is not damaged or removed from the flanges.
!
Note!
Bolts, nuts, seals, etc. are not included in the scope of supply and must be supplied by the
customer.
The sensor is designed for installation between the two piping flanges.
• Observe in any case the necessary screw tightening torques on → 27
• If grounding disks are used, follow the mounting instructions which will be enclosed with
the shipment
• To comply with the device specification, a concentrical installation in the measuring
section is required
a0004296
Fig. 20: Installing the Promag L sensor
Seals
Comply with the following instructions when installing seals:
• Hard rubber lining additional seals are always necessary.
•Polyurethane lining no seals are required.
• PTFE lining no seals are required.
• For DIN flanges, use only seals according to EN 1514-1.
• Make sure that the seals do not protrude into the piping cross-section.
"
Caution!
Risk of short circuit!
Do not use electrically conductive sealing compounds such as graphite! An electrically
conductive layer could form on the inside of the measuring tube and short-circuit the
measuring signal.
Ground cable
• If necessary, special ground cables for potential equalization can be ordered as an
accessory (→ 128).
• Information on potential equalization and detailed mounting instructions for the use of
ground cables can be found on → 62.
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