More Precision.
indu
SENSOR
Linear inductive displacement sensors
28
LVDT series: Displacement sensors
with external electronics
Measurement ranges ±1 … ±25 mm
Extremely accurate also under difficult
ambient conditions
Long-term stability
Wear-free
Easy installation
+ Signal
Displacement sensors have a plunger
which moves freely in the sensor housing.
The plunger is joined to the object by a
thread to transfer the movement of the
measurement object. The measurement
process in the sensor takes place without
contact and is therefore wear-free. The
displacement sensors are mainly used to
measure and monitor movements, dis-
placements, positions, strokes, deflec-
tions, dislocations, etc. in vehicles,
machines and systems.
The high sensor resolution is limited only by
the noise in the sensor electronics. A further
advantage of the symmetrically construc-
ted sensors in the LVDT series is the zero-
point stability of the systems. The sensors
are supplied with an excitation frequency of
1 to 5 kHz depending on the measurement
range and an excitation amplitude of 2.5 to
5 Vrms. Matched sensor electronics are
available in this respect.
With appropriate setting possibilities for the
excitation frequency and amplitude, the
sensors can also be operated with
alternative electronics.
Article
DTA -
10
D -
3 - CA
-
W
principle: differential
transformator (LVDT)
excitation AC
measuring range ± mm
function: displacement sensor
linearity 3 (± 0.3 %)
1.5 (± 0.15 %)
options
W welded/sealed housing (water proof up to 5 bars)
P pressure resistant housing (up to 100 bar)
F pressure resistant mounting flange O-ring seal
H high temperature sensor up to 200 °C with integral teflon
cable (only for connection types -CA/-CR)
connection axial
CA integrial cable (3 m)
LA stranded wire (0.3 m)
SA plug connection
TA soldered pins
connection radial
CR integral cable (3 m)
SR plug connection
29
Model
Connection
Measuring range
Linearity
standard ±0.3 %
option ±0.15 %
Excitation frequency
Excitation amplitude
Sensitivity
-20 °C ... 80 °C
Temperature
range
-20 °C ... 120 °C
Storage temperature
Temperature stability
DTA-1D-
TA
CA
±1 mm
6 µm
3 µm
SA
DTA-3D-
TA
CA
±3 mm
18 µm
9 µm
5 kHz
5 V
eff
SA
DTA-5D-
TA
CA
±5 mm
30 µm
15 µm
SA
DTA-10D-
LA
CA
SA
LA
DTA-15D-
CA CR
SA
SR
LA
DTA-25D-
CA CR
SA
SR
±10 mm
60 µm
30 µm
2 kHz
±15 mm
90 µm
45 µm
1 kHz
2.5 V
eff
±25 mm
150 µm
-
133 mV/Vmm
•
•
•
85 mV/Vmm
•
•
•
53 mV/Vmm
•
•
•
44 mV/Vmm
•
•
•
•
45 mV/Vmm
•
•
•
•
•
33 mV/Vmm
•
•
•
•
-40 °C ... +80 °C / +120 °C
zero ±50 ppm/°C
sensitivity ±100 ppm/°C
Housing
Bending radius cable
Outer cable diameter
Protection class
Shock
Vibration
IEC 68-2-29
IEC 68-2-27
IEC 68-2-6
stainless steel including magnetic shielding
20 mm
~4.6 mm
IP 67
40 g, 1000 shocks / axis
100 g, 3 shocks/direction
10 Hz ... 58 Hz ±1.5 mm / 58 Hz ... 500 Hz ±20 g
FSO = Full Scale Output
Basic model
Connection
Length of housing L
Length of plunger l
Housing diameter
1
DTA-1D-
TA
mm 30
mm
mm
CA SA
40
19
40
DTA-3D-
TA
47
CA SA
57
29
10
57
DTA-5D-
TA
63
CA SA
73
30
73
DTA-10D-
TA
78
CA SA
87
35
87
LA
93
DTA-15D-
CA CR SA
106.5
51
20
SR
LA
129.5
DTA-25D-
CA CR SA
143.5
62
SR
1) Plunger in zero position (±10 % of measuring range ±1 mm)
ø10
ø10
ø10
sensor types with measuring range up to ±10 mm
(inner diameter ø2.7 mm)
13
L
l
L
l
10
M2
ø2
9
L
l
10
M2
ø2
L
10
M2
ø2
type - TA
with axial solder pins
type - CA
with integral cable
type - SA
with axial plug connection
sensor types with measuring range ±15 mm and ±25 mm
(inner diameter ø4.8 mm)
ø20
ø4
15
L
9.5
l
20
17
L
L
type - LA
with axial stranded wire
30
26.5
ø 14
female connector 90°
dimensions apply
for all models
female connector
dimensions apply
for all models
11.4
type - CA
with integral cable
type - CR
with integral
cable (radial)
~40
~63
L
9
type - SA
with axial
plug connection
type - SR
with radial
plug connection
20.5
ø 14
~36
19
Sensor system with miniature sensor
and on-board electronics KRS719(01)
Compact design
Calibrated system
On-board electronics
Model
Article
Measuring principle
Measuring range
Target (included)
Linearity
Resolution
Frequency response
Housing
Temperature stability
Output
Power supply
Temperature range
Adjustment
Protection class
Electronics
FSO = Full Scale Output
sensor
electronics
KRS719(01)
4350026.01
LVDT (page 6)
± 1 mm
plunger 0800080 (ø2 x 62 long)
with thread M4x0.5 (15 mm long)
±0.15 % FSO (3 µm)
0.07% FSO (1.4 µm)
100 Hz (-3dB)
nickel-plated steel
zero ± 50 ppm / °C
4 ... 20 mA
options: 2 ... 20 mA / ± 3.9 VDC
22.8 ... 25.2 VDC
-20°C ... +80°C
0° C ... +50°C
zero, gain
IP 67
incl. circuit board BSC719(02)-I, article 2208078.02
The KRS719 sensor system is used for
monitoring the yarn thickness in textile
machines. The miniaturized sensor and the
board-mounted electronics can be cost-
effectively integrated into the available
installation spaces and machine control-
lers. The system is characterized by high
stability and repeatability.
1.5
4.6
9-pin
sub-D
65
34
~800
increasing signal
15
16
~50
R20
M4x0.5
52
ø3.5
ø10
* plunger in midrange
The plunger can be
introduced into the
sensor from both ends.
ø2.9
6*
30
Miniature sensor with radial cable output
DTA-0,8D-2,5-LR
OEM sensor for large-scale applications
Miniaturized design
Radial cable output
High accuracy
The miniature sensor DTA-0,8D-2,5-LR was
designed and developed for use where the
installation space is restricted. In addition,
due to the low core weight the dynamic
response of the measurement object is
retained and mechanical loads are
minimized.
1 - 72 UNF, 4 depth
Due to the radial cable output, the
installation space behind the sensor can be
fully exploited. With a linearity of <0.25%
this sensor model is also suitable for
measurements with high accuracy require-
ments.
10.8
Model
Article
Measuring principle
DTA-0,8D-2,5-LR
2611045
LVDT (page 6)
±0.8 mm
<0.25% FSO at 5 V
eff
/ 12.5 kHz (4 µm)
1 - 20 kHz
up to 10 V
eff
core 0304028 (ø2.7 x 10.8 long)
ø2.7
ø5
Measuring range
Linearity
Excitation frequency
Excitation amplitude
15.2
Target (included)
with thread 1-72UNF (4 depth)
Housing
nickel-plated steel
zero: ±50 ppm / °C
-20° C ... +80° C
IP 65
ISC7001
ø11.1
~6
Temperature stability sensor
Temperature range sensor
Protection class sensor
Electronics
FSO = Full Scale Output
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