Installation Proline Promag 10
26 Endress+Hauser
2.7 Installing the Promag W sensor
"
Caution!
• The protective covers mounted on the two sensor flanges 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 protective plates must always remain mounted while the device is in storage.
• Make sure that the lining at the flange is not damaged or removed.
2.7.1 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.
2.7.2 Ground cable
If necessary, special ground cables can be ordered as accessories for potential equalization.
2.7.3 Screw tightening torques (Promag W)
Please note the following:
• The tightening torques listed below are for lubricated threads only.
• Always tighten the screws uniformly and in diagonally opposite sequence.
• Overtightening the screws will deform the sealing faces or damage the seals.
• The tightening torques listed below apply only to pipes not subjected to tensile stress.
a0008165
Note!
Screws, nuts, seals, etc. are not included in the
scope of supply and must be supplied by the
customer.
The sensor is installed between the two pipe flanges:
• The requisite torques must be observed ä 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
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