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These
are DC-EXCITED LONG-STROKE LVDT
models with UNGUIDED ARMATURE, for use in
low-voltage applications. They may be used, for example, with
digital panel meters to form a complete readout system.
Unlike
the standard DC "LU5" LVDT Series,
the DC "LU2" LVDT's operate from either a +5 VDC regulated
supply or a +6 to +18 VDC unregulated supply. Each LVDT
generates a single output signal of ±2 VDC that is electrically
isolated from the input voltage.
All models are
fitted with 2 meters (6.6 ft.) of shielded cable.
General Specifications are
given below.
Go
to LVDT SELECTION GUIDE
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DC
"LU2" 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" |
|
DSD1000LU2 |
±0.5
±12.5 |
6.9
175 |
1.7
43 |
0.35
9 |
0.813
20.6 |
0.27
6.8 |
0.6
17 |
7.6
0z.
216 g |
0.91
23 |
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DSD2000LU2 |
±1
±25 |
7.9
200 |
2.7
69 |
0.81
23 |
9.5
oz.
270 g |
0.89
22.5 |
|
DSD4000LU2 |
±2
±50 |
12.5
317 |
3.2
81 |
1.3
37 |
13.4
oz.
382 g |
0.62
15.8 |
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DSD6000LU2 |
±3
±75 |
16.9
430 |
4.7
119 |
1.94
55 |
1.1
lb.
497 g |
0.98
25 |
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DSD8000LU2 |
±4
±100 |
18.6
472 |
5.2
132 |
2.5
71 |
1.35
lb.
625 g |
0.73
18.6 |
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DSD12000LU2 |
±6
±150 |
26.1
663 |
7.2
183 |
3.5
100 |
1.87
lb.
852 g |
0.75
19 |
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DSD16000LU2 |
±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 "LU2" Specifications [Top
 ]
(See
also the statement
on LVDT specifications)
|
|
Supply
Requirements |
+5
VDC regulated or +6 to +18 VDC unregulated; 100 mA |
|
Armature |
UNGUIDED |
|
Linearity
(% error of full scale, worst case) |
±0.5%* |
|
Output |
±2.2
VDC nominal, isolated from supply |
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Output
Load (minimum) |
2
kΩ |
|
Output
Ripple |
30
mV peak-to-peak |
|
Output
Bandwidth (electrical) |
200
Hz |
|
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) |
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Operating
Temperature Range |
-51°
C to +71° C (-60° F to +160° F) |
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Electrical
Termination |
6.5
ft. (2 m) shielded cable |
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*
±0.25% and ±0.1% linearity are optional on some models (contact
the factory for details). |
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DC-Operated,
Long-Stroke
