www.balluff.com
7
english
Fig. 3-1:
43
12
20
20
Ø D1
60
25
G
Ø 65
10
10
60
0.5 Ø 25
10
max. 7
23
35
0.5 Ø 25
31
~20
BTL7-…-H/W(8)-… transducer, construction and function
3.1
Construction
Electrical connection:
The electrical connection is made
via a cable or a connector (see Type code breakdown on
Housing:
Housing containing the processing electronics.
Mounting thread:
We recommend assembling these
transducers on the mounting thread:
– BTL7-…-H: M18×1.5
– BTL7-…-W: 3/4”-16UNF
The transducer with Ø 10.2 mm has an additional thread
at the end of the rod to support larger nominal lengths.
Magnet:
Defines the position to be measured on the
waveguide. Magnets are available in various models and
must be ordered separately (see Accessories on
Nominal length:
Defines the available measuring range.
Rods with various nominal lengths from 25 mm to
7620 mm are available depending on the version:
– Ø 10.2 mm: Nominal length from 25 mm to 7620 mm
– Ø 8 mm: Nominal length from 25 mm to 1016 mm
Damping zone:
Area at the end of the rod that cannot be
used for measurements, but which may be passed over.
3
Construction and function
BTL7…-S32
Axial
BTL7…-S115
Axial
BTL7… cable
Radial
Mounting surface
1) Unusable area
2) Not included in scope of delivery
3) Ø 5 for hook spanner Ø 65, max. tightening torque 100 Nm
Damping zone
Magnet
1)
Nominal length =
Measuring range
2)
1)
BTL7… cable
Axial
Version
D1
G
…-H/W-…
10.2 mm
Thread
M4x4/6 deep
…-H8/W8-…
8 mm
No thread
3)
3.2
Function
The Micropulse Transducer contains the waveguide which
is protected by an outer stainless steel tube (rod).
A magnet is moved along the waveguide. This magnet is
connected to the system part whose position is to be
determined.
The magnet defines the position to be measured on the
waveguide.
An internally generated INIT pulse interacts with the
magnetic field of the magnet to generate a torsional wave
in the waveguide which propagates at ultrasonic speed.
The component of the torsional wave which arrives at the
end of the waveguide is absorbed in the damping zone to
prevent reflection. The component of the torsional wave
which arrives at the beginning of the waveguide is
converted by a coil into an electrical signal. The travel time
of the wave is used to calculate the position. Depending
on the version, this information is made available as a
voltage or current output with a rising or falling gradient.
Thread size:
H: M18×1.5
W: 3/4”-16UNF
H: 40-1 mm
W: 2"-0.04"
BTL7-A/C/E/G5 _ _ -M _ _ _ _ -H/W(8)-S32/S115/_ _ _
Micropulse Transducer - Rod Style
Summary of Contents for BTL7 Series
Page 1: ...Betriebsanleitung BTL7 A C E G5_ _ M_ _ _ _ H W 8 S32 S115 _ _ _ S 3 2 deutsch ...
Page 2: ...www balluff com ...
Page 28: ...User s Guide BTL7 A C E G5_ _ M_ _ _ _ H W 8 S32 S115 _ _ _ S 3 2 english ...
Page 29: ...www balluff com ...
Page 55: ...Manual de instrucciones BTL7 A C E G5_ _ M_ _ _ _ H W 8 S32 S115 _ _ _ S 3 2 español ...
Page 56: ...www balluff com ...
Page 82: ...Notice d utilisation BTL7 A C E G5_ _ M_ _ _ _ H W 8 S32 S115 _ _ _ S 3 2 français ...
Page 83: ...www balluff com ...
Page 109: ...Manuale d uso BTL7 A C E G5_ _ M_ _ _ _ H W 8 S32 S115 _ _ _ S 3 2 italiano ...
Page 110: ...www balluff com ...
