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BTL7-T500-M_ _ _ _-B/Z-DEX_-K_ _/KA_ _/ZA1K
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 7.2 )
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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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 fasten 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.
Mounting threads: The BTL comes with an M18×1.5
(according to ISO) or a 3/4"-16 UNF (according to SAE)
thread to secure it. Depending on the version, a mounting
hole must be made before assembly.
Fig. 4-4:
Mounting hole for assembling the BTL with O-ring
Magnet: Various magnets are available for the BTL7
(see Accessories on page 19).
Mounting hole ISO 6149
O-ring 15.4 × 2.1
Mounting hole SAE J475
O-ring 15.3 × 2.4
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11
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