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BTL7-P511-M _ _ _ _ -J-DEXC-TA12
Magnetostrictive Linear Position Sensor – Rod Style
4
Installation and connection
4.1
Minimum distance to fixed obstacles
During installation, make sure that there is a minimum
distance between the BTL housing and fixed obstacles,
such as protective covers. The required distance is
specified in EN 60079-14 and depends on the applied gas
group.
Fig. 4-1:
Minimum distance
4.2
Application 1: outside zone 0
(with magnet in accordance with Section 8.2)
4.2.1
Installation guidelines
Non-magnetizable material
Magnet
Fig. 4-2:
Installation in non-magnetizable material
Magnetizable material
If using magnetizable material, the BTL must be protected
against magnetic interference through suitable measures
(e.g. spacer ring made of non-magnetizable material, a
suitable distance from strong external magnetic fields).
15
8
Spacer ring made of non-magnetizable
Magnet
material
15
8
Magnet
Spacer ring made of non-magnetizable
material
Fig. 4-3:
Installation in magnetizable material
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Ignition protection "d"
Flameproof enclosure
4.2.2
Preparing for installation
Installation note: We recommend using non-
magnetizable material to mount the BTL and magnet.
Horizontal assembly: For horizontal assembly with
nominal lengths > 500 mm, support the rod and tighten it
at the end if necessary.
Hydraulic cylinder: If installed in a hydraulic cylinder,
ensure that the minimum value of 13 mm for the bore
diameter of the support piston is complied with.
Fitting bore: The mounting surface of the BTL must make
full contact with the supporting surface. A suitable O-ring
must completely seal the bore, i.e. the countersink for the
O-ring must be produced according to Fig. 4-4.
Bevel for O-ring 15.4x2.1
Fig. 4-4:
Fitting bore for installing the BTL with O-ring
Magnet: Various magnets are available for the BTL (see
Accessories on page 21).
Fitting bore
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11
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