SENSOR SOLUTIONS ///DC-EC Series Rev. 8 07/2017
Page 1
FEATURES
APPLICATIONS
Bi-polar DC operation
Shock and vibration tolerant
Captive core option (available on select
models)
AISI 400 Series stainless steel
housing
CE compliant
Calibration certificate supplied with
each unit
Materials testing
Z-axis position feedback for punch-
presses
Microscope X-Y stage position
control
Medical imaging
Automotive suspension testing
Flight simulators
DC-EC SERIES
General purpose DC LVDT
SPECIFICATIONS
High level ±10VDC output
Stroke ranges from ±0.05 to ±10in
0.25% linearity
Reverse polarity protection
Double magnetic shielding
Stainless steel housing
Imperial or metric threaded core
The DC-EC Series DC operated LVDTs combine a computer-
designed AC LVDT with custom integral signal conditioning to
achieve premium performance. Operating on a nominal ±15VDC
supply, the DC-EC Series delivers an extremely linear, low noise,
yet high frequency response ±10VDC output.
Innovative design and manufacturing techniques further enhance
the DC-EC performance and cost efficiency. The micro-miniature
components employed were meticulously selected for maximum
stability and thermal performance. Vacuum encapsulation of all
elements affords excellent shock and vibration tolerance, while
double magnetic shielding provides the utmost protection from
stray fields.
Like in most of our LVDTs, the DC-EC windings are vacuum
impregnated with a specially formulated, high temperature,
flexible resin, and the coil assembly is potted inside its housing
with a two-component epoxy. This provides excellent protection
against hostile environments such as high humidity, vibration and
shock.
Available in a variety of stroke ranges from ±0.05 to ±10 inches,
the DC-EC Series can be configured with a number of standard
options including metric threaded core, guided core and small
diameter/low mass core.
Captive core option: The DC-EC features an optional captive core
design (available for most models) that greatly simplifies
installation. The core rod and bearing assembly includes a
Bronze bearing on the front end for self-alignment, while a PTFE
sleeve allows low-friction travel through the stainless steel
boreliner (spool tube). The core rod and the bearing assembly are
both field serviceable.
DC-EC SERIES
General purpose DC LVDT
SENSOR SOLUTIONS /// DC-EC Series Rev. 8 07/2017
Page 2
PERFORMANCE SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Parameter
DC-EC 050
DC-EC 125
DC-EC 250
DC-EC 500
DC-EC 1000
DC-EC 2000
DC-EC 3000
DC-EC 5000
DC-EC 10000
Stroke range
±0.050
[±1.27]
±0.125
[±3.17]
±0.25
[±6.35]
±0.5
[±12.7]
±1
[±25.4]
±2
[±50.8]
±3
[±76.2]
±5
[±127]
±10
[±254]
Sensitivity, VDC/inch
200
80
40
20
10
5
3.3
2.0
1.0
Sensitivity, VDC/mm
7.9
3.15
1.6
0.79
0.39
0.20
0.13
0.079
0.039
Frequency response
Hertz @-3dB
500
500
500
200
200
200
200
200
200
Input voltage
±15VDC
Input current
±25mA
Output at stroke ends
±10VDC (Positive and increasing when the core is displaced from null position towards the cable)
Non-linearity
±0.25% of FR, maximum
Output ripple
25mVRMS, maximum
Stability
0.125% of FSO
Output impedance
1 Ohm
ENVIRONMENTAL SPECIFICATIONS & MATERIALS
Operating temperature
+32°F to +160°F [0°C to 70°C]
Survival temperature
-65°F to +200°F [-55°C to 95°C]
Shock survival
250 g (11ms half-sine)
Vibration tolerance
10 g up to 2kHz
Housing material
AISI 400 Series stainless steel
Electrical connection
Cable with 4 conductors, 28AWG stranded copper, braided shield and polyurethane jacket,
39 inches [1 meter] long. Shield is connected to case.
IEC 60529 rating
IP61
Notes:
All values are nominal unless otherwise noted
Dimensions are in inch [mm] unless otherwise noted
FR: Full Range is the stroke range, end to end; FR=2xS for ±S stroke range
FSO (Full Scale Output): Largest absolute value of the outputs measured at the ends of the range
WIRING INFORMATION
DC-EC SERIES
General purpose DC LVDT
SENSOR SOLUTIONS /// DC-EC Series Rev. 8 07/2017
Page 3
MECHANICAL SPECIFICATIONS – NON-CAPTIVE CORE (STANDARD)
Parameter
DC-EC 050
DC-EC 125
DC-EC 250
DC-EC 500
DC-EC 1000
DC-EC 2000
DC-EC 3000
DC-EC 5000
DC-EC 10000
Main body length
“A”
2.10
[53.3]
2.93
[74.4]
3.80
[96.5]
5.49
[139.4]
7.75
[196.9]
11.12
[282.4]
16.32
[414.5]
20.15
[511.8]
35.38
[898.7]
Core length
“B”
0.75
[19.1]
1.25
[31.8]
2.00
[50.8]
3.00
[76.2]
3.80
[96.5]
5.30
[134.6]
6.20
[157.5]
6.20
[157.5]
12.00
[304.8]
Core center at null
“P”
0.50
[12.7]
0.93
[23.6]
1.35
[34.3]
2.20
[55.9]
3.18
[80.8]
5.3
[134.6]
7.55
[191.8]
9.53
[242.1]
16.58
[421.1]
Body weight oz
[gram]
2.19
[62]
2.44
[69]
2.58
[73]
2.93
[83]
4.24
[120]
5.47
[155]
9.39
[266]
11.47
[325]
15.71
[445]
Core weight oz
[gram]
0.07
[2]
0.11
[3]
0.18
[5]
0.28
[8]
0.35
[10]
0.46
[13]
0.49
[14]
0.60
[17]
0.85
[24]
Dimensions are in inch [mm]
MECHANICAL SPECIFICATIONS – CAPTIVE CORE OPTION
Parameter
DC-EC 050
DC-EC 125
DC-EC 250
DC-EC 500
DC-EC 1000
DC-EC 2000
DC-EC 3000
Main body length
“A”
2.48
[63.0]
3.31
[84.1]
4.18
[84.1]
5.87
[149.1]
8.13
[206.5]
11.50
[292.1]
16.70
[424.2]
Core rod position at null
“R”
3.78
[96.0]
4.36
[110.7]
4.85
[123.2]
6.04
[153.4]
7.90
[200.7]
10.52
[267.2]
15.27
[387.9]
Center of core position at null
“P”
0.84
[21.3]
1.27
[32.3]
1.69
[42.9]
2.54
[64.5]
3.52
[89.4]
5.22
[132.6]
7.89
[200.4]
Weight oz
[gram]
2.97
[84]
3.32
[94]
3.53
[100]
4.02
[114]
5.61
[159]
7.2
[204]
11.68
[331]
Dimensions are in inch [mm]
DC-EC SERIES
General purpose DC LVDT
SENSOR SOLUTIONS /// DC-EC Series Rev. 8 07/2017
Page 4
ORDERING INFORMATION
Description
Model
Part Number
Description
Model
Part Number
±0.050 inch LVDT
DC-EC 050
02560981-000
±2 inch LVDT
DC-EC 2000
02560986-000
±0.125 inch LVDT
DC-EC 125
02560982-000
±3 inch LVDT
DC-EC 3000
02560987-000
±0.25 inch LVDT
DC-EC 250
02560983-000
±5 inch LVDT
DC-EC 5000
02560988-000
±0.5 inch LVDT
DC-EC 500
02560984-000
±10 inch LVDT
DC-EC 10000
02560989-000
±1 inch LVDT
DC-EC 1000
02560985-000
OPTIONS
Metric threaded core (M3 x 0.5-6H)
ALL DC-EC
XXXXXXXX-006
Guided core
ALL DC-EC
XXXXXXXX-010
Small-diameter/low-mass core (consult factory for mass & dimensions)
ALL DC-EC
XXXXXXXX-020
Captive core
DC-EC 050 thru 3000 only
XXXXXXXX-200
Note: Add multiple option dash numbers together to determine proper ordering suffix
Example: DC-EC 1000, ±1 inch, with metric threaded and guided core, P/N 02560985-016
ACCESSORIES
Dual rail DC power supply (±15VDC)
Model PSD 40-15
02291339-000
Core connecting rod, 6 inches long, 4-40 threads
05282946-006
Core connecting rod, 12 inches long, 4-40 threads
05282946-012
Core connecting rod, 24 inches long, 4-40 threads
05282946-024
Core connecting rod, 36 inches long, 4-40 threads
05282946-036
Core connecting rod, 6 inches long, M3x0.5 metric threads
05282977-006
Core connecting rod, 12 inches long, M3x0.5 metric threads
05282977-012
Mounting block
04560950-000
TE.com/sensorsolutions
Measurement Specialties, Inc., a TE Connectivity company.
Measurement Specialties, TE Connectivity, TE Connectivity (logo) and EVERY CONNECTION COUNTS are trademarks. All other logos, products and/or company names referred to herein
might be trademarks of their respective owners.
The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However, TE Connectivity makes
no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. TE Connectivity‘s obligations shall only be as set forth in TE Connectivity‘s Standard
Terms and Conditions of Sale for this product and in no case will TE Connectivity be liable for any incidental, indirect or consequential damages arising out of the sale, resale, use or misuse
of the product. Users of TE Connectivity products should make their own evaluation to determine the suitability of each such product for the specific application.
© 2015 TE Connectivity Ltd. family of companies All Rights Reserved.
NORTH AMERICA
Measurement Specialties, Inc.,
a TE Connectivity company
Tel: 800-522-6752
Email: customercare.frmt@te.com
EUROPE
Measurement Specialties (Europe), Ltd.,
a TE Connectivity Company
Tel: 800-440-5100
Email: customercare.bevx@te.com
ASIA
Measurement Specialties (China) Ltd.,
a TE Connectivity company
Tel: 0400-820-6015
Email: customercare.shzn@te.com
