Balluff BTL7-A/C/E/G5 M J-DEXC-TA12 Serie Betriebsanleitung Seite 43

BTL7-A/C/E/G5_ _-M_ _ _ _-J-DEXC-TA12
Magnetostrictive Linear Position Sensor – Rod Style
3
Construction and function
104.1
96.1
59.5
A
23.6
A
15/16" or 24 mm key
External housing GND
30.8
Cover secondary retaining screw
Fig. 3-1: BTL7-..., construction
3.1 Construction
Electrical connection: The connection is accomplished
by means of a connection terminal (see Type code on
page 30).
Housing: A heavy-duty stainless steel housing with a
modified 1/2"-14 NPT threaded conduit opening for cable
entry (conduit is not included in the scope of delivery).
Modified conduit entry in accordance with FM Standard
3615, Chapter 3.3.3, Paragraph D, Section 1.
The internal electronics module can be replaced without
removing the pressure housing.
Fastening: For secure fastening, tighten the BTL with
cylinder screws (M6 × 45 - A4-70) at all 6 mounting holes
(see Fig. 3-1). All screws must be tightened with 3.5 Nm.
The BTLs have an additional thread at the end of the rod
to support larger nominal lengths.
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1)
Nominal length =
50.8
measuring range
Magnet 2)
Float 2)
O-ring
Modified 1/2"-14 NPT (conduit entry)
Mounting surface
25
Type of protection "db" and "t"
Damping zone 1)
77
5
Ø 4
1) Unusable area
2) Not included in scope of delivery
Magnet: Defines the position to be measured on the
waveguide. Magnets are available in various models and
must be ordered separately (see Accessories starting on
page 28).
Nominal length: Defines the available measuring range.
Rods with various nominal stroke lengths from 25 mm to
7620 mm are available depending on the version.
Damping zone: Area at the end of the rod that cannot be
used for measurements, but which may be passed over.
Flameproof enclosure
Ø 88.5
Ø 76.2
A – A view
Thread
M4x6
english 9