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These
are the standard DC-EXCITED LONG-STROKE LVDT
models with UNGUIDED ARMATURE. Operating
from a simple unregulated power supply of +20 to +40 VDC (or dual ±10 to
±20 VDC), each LVDT generates two standard ±5 VDC antiphase
output signals. These two outputs can be used individually, or they can be combined to yield a
high-level ±10 VDC "differential output signal." For
low-output (±2 V) versions, see the DC
"LU2" LVDT Series (2-wire 4-20 mA output is also
available as an option—contact
the factory for details).
Each
model includes high-quality electronics for energization and signal
conditioning. Encapsulated, integrated electronics are suitable for
operation in harsh industrial environments. All models are fitted
with 2 meters (6.6 ft.) of shielded cable. For hermetically sealed
versions, see the DC "LUM" LVDT Series.
General Specifications are
given below.
Go
to LVDT SELECTION GUIDE
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DC
"LU5" Series
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Push
rod diameter (shown as "D2") is 0.19 in. (4.75 mm) for all
models;
armature diameter (inside transducer) is 0.24 in. (6 mm) for all
models |
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LVDT
Model |
Nom.
Linear
Range
(in. / mm) |
Dimensions
(in. / mm) |
Arma-
ture
Weight
(oz. / g) |
Total
Weight |
Inward
Over-
travel
(in /
mm)* |
| "L" |
"X" |
"A" |
"D1" |
"ID" |
|
DSD1000LU5 |
±0.5
±12.5 |
6.9
175 |
1.7
43 |
0.35
9 |
0.813
20.6 |
0.27
6.8 |
0.6
17 |
7.5
0z.
213 g |
0.91
23 |
|
DSD2000LU5 |
±1
±25 |
7.9
200 |
2.7
69 |
0.81
23 |
9.5
oz.
270 g |
0.89
22.5 |
|
DSD4000LU5 |
±2
±50 |
12.5
317 |
3.2
81 |
1.3
37 |
12.7
oz.
361 g |
0.62
15.8 |
|
DSD6000LU5 |
±3
±75 |
16.9
430 |
4.7
119 |
1.94
55 |
1.1
lb.
497 g |
0.98
25 |
|
DSD8000LU5 |
±4
±100 |
18.6
472 |
5.2
132 |
2.5
71 |
1.35
lb.
610 g |
0.73
18.6 |
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DSD12000LU5 |
±6
±150 |
26.1
663 |
7.2
183 |
3.5
100 |
1.87
lb.
852 g |
0.75
19 |
|
DSD16000LU5 |
±8
±200 |
33.6
854 |
10.2
259 |
4.9
140 |
2.75
lb.
1250 g |
1.04
26.5 |
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* Outward overtravel is not applicable. |
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General
DC "LU5" Specifications [Top
 ]
(See
also the statement
on LVDT specifications)
|
|
Supply
Requirements, SINGLE* |
+20
to +40 VDC, 25 mA (for standard output) |
|
Supply
Requirements, DUAL |
±10
to ±20 VDC, 25 mA (for standard output) |
|
Armature |
UNGUIDED |
|
Linearity
(% error of full scale, worst case) |
±0.5%** |
|
Standard
Output (in/out)*** |
±5
VDC and ±5
VDC (+5%, - 0%), selected by connection |
|
Output
Load (minimum) |
For
+20 to
+40 VDC Power: 20 kΩ
For ±10
to ±20 VDC Power: 2 kΩ |
|
Output
Ripple |
30
mV peak-to-peak |
|
Output
Bandwidth (electrical) |
200
Hz (flat) |
|
Output
Impedance |
2
Ω |
|
Zero
Temperature Coefficient |
±0.01%
of full scale/°C (±0.005% of full scale/°F) |
|
Span
Temperature Coefficient |
±0.03%
of full scale/°C (±0.015% of full scale/°F) |
|
Operating
Temperature Range |
-51°
C to +71° C (-60° F to +160° F) (for standard output) |
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Electrical
Termination |
6.5
ft. (2 m) shielded cable |
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*
Must be floating with respect to output.
** ±0.25% and ±0.1% linearity are optional on some models (contact
the factory for details).
*** For 4-20 mA and 0-10 V output options, contact
the factory. |
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DC-Operated,
Long-Stroke
