DC-EC Series - General purpose DC LVDT * * * * * * * 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 DESCRIPTION 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. Also see our other LVDTs with built-in signal conditioning: DC-SE (single-ended DC voltage), HCD (Hermetically sealed, DC voltage), HC-485 (RS485 digital output), and the HCT (4-20mA, 2-wire loop). Measurement Specialties, Inc. (NASDAQ MEAS) offers many other types of sensors and signal conditioners. Data sheets can be downloaded from our web site at: http://www.meas-spec.com/datasheets.aspx MEAS acquired Schaevitz Sensors and the Schaevitz FEATURES * * * * * * trademark in 2000. 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 DC-EC Series Rev. 7 TM * Materials testing * * * * * Z-axis position feedback for punch-presses Microscope X-Y stage position control Medical imaging Automotive suspension testing Flight simulators www.meas-spec.com 1/4 2015-July DC-EC Series - General purpose DC LVDT PERFORMANCE SPECIFICATIONS ELECTRICAL SPECIFICATIONS Parameter Stroke range Sensitivity, VDC/inch Sensitivity, VDC/mm Frequency response Hertz @-3dB Input voltage Input current Output at stroke ends Non-linearity Output ripple Stability Output impedance DC-EC 050 DC-EC 125 0.050 [1.27] 200 7.9 0.125 [3.17] 80 3.15 DC-EC 250 DC-EC 500 0.25 [6.35] 40 1.6 0.5 [12.7] 20 0.79 DC-EC 1000 DC-EC 2000 DC-EC 3000 1 [25.4] 10 0.39 2 [50.8] 5 0.20 3 [76.2] 3.3 0.13 DC-EC 5000 DC-EC 10000 5 [127] 2.0 0.079 10 [254] 1.0 0.039 500 500 500 200 200 200 200 200 15VDC 25mA 10VDC (Positive and increasing when the core is displaced from null position towards the cable) 0.25% of FR, maximum 25mVRMS, maximum 0.125% of FSO 1 Ohm 200 ENVIRONMENTAL SPECIFICATIONS & MATERIALS Operating temperature Survival temperature Shock survival Vibration tolerance Housing material Electrical connection IEC 60529 rating +32F to +160F [0C to 70C] -65F to +200F [-55C to 95C] 250 g (11ms half-sine) 10 g up to 2kHz AISI 400 Series stainless steel Cable with 4 conductors, 28AWG stranded copper, braided shield and polyurethane jacket, 39 inches [1 meter] long. Shield is connected to case. 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 Rev. 7 www.meas-spec.com 2/4 2015-July DC-EC Series - General purpose DC LVDT MECHANICAL SPECIFICATIONS - NON-CAPTIVE CORE (STANDARD) Parameter Main body length "A" Core length "B" Core center at null "P" Body weight oz [gram] Core weight oz [gram] DC-EC 050 DC-EC 125 2.10 [53.3] 0.75 [19.1] 0.50 [12.7] 2.19 [62] 0.07 [2] 2.93 [74.4] 1.25 [31.8] 0.93 [23.6] 2.44 [69] 0.11 [3] DC-EC 250 DC-EC 500 3.80 [96.5] 2.00 [50.8] 1.35 [34.3] 2.58 [73] 0.18 [5] 5.49 [139.4] 3.00 [76.2] 2.20 [55.9] 2.93 [83] 0.28 [8] DC-EC 1000 DC-EC 2000 7.75 [196.9] 3.80 [96.5] 3.18 [80.8] 4.24 [120] 0.35 [10] 11.12 [282.4] 5.30 [134.6] 5.3 [134.6] 5.47 [155] 0.46 [13] DC-EC 3000 16.32 [414.5] 6.20 [157.5] 7.55 [191.8] 9.39 [266] 0.49 [14] DC-EC 5000 DC-EC 10000 20.15 [511.8] 6.20 [157.5] 9.53 [242.1] 11.47 [325] 0.60 [17] 35.38 [898.7] 12.00 [304.8] 16.58 [421.1] 15.71 [445] 0.85 [24] Dimensions are in inch [mm] MECHANICAL SPECIFICATIONS - CAPTIVE CORE OPTION Parameter Main body length "A" Core rod position at null "R" Center of core position at null "P" Weight oz [gram] DC-EC 050 DC-EC 125 2.48 [63.0] 3.78 [96.0] 0.84 [21.3] 2.97 [84] 3.31 [84.1] 4.36 [110.7] 1.27 [32.3] 3.32 [94] DC-EC 250 DC-EC 500 4.18 [84.1] 4.85 [123.2] 1.69 [42.9] 3.53 [100] 5.87 [149.1] 6.04 [153.4] 2.54 [64.5] 4.02 [114] DC-EC 1000 DC-EC 2000 DC-EC 3000 8.13 [206.5] 7.90 [200.7] 3.52 [89.4] 5.61 [159] 11.50 [292.1] 10.52 [267.2] 5.22 [132.6] 7.2 [204] 16.70 [424.2] 15.27 [387.9] 7.89 [200.4] 11.68 [331] Dimensions are in inch [mm] DC-EC Series Rev. 7 www.meas-spec.com 3/4 2015-July DC-EC Series - General purpose DC LVDT ORDERING INFORMATION Description 0.050 inch LVDT 0.125 inch LVDT 0.25 inch LVDT 0.5 inch LVDT 1 inch LVDT Model Part Number DC-EC 050 DC-EC 125 DC-EC 250 DC-EC 500 DC-EC 1000 02560981-000 02560982-000 02560983-000 02560984-000 02560985-000 Description 2 inch LVDT 3 inch LVDT 5 inch LVDT 10 inch LVDT Model Part Number DC-EC 2000 DC-EC 3000 DC-EC 5000 DC-EC 10000 02560986-000 02560987-000 02560988-000 02560989-000 ALL DC-EC ALL DC-EC ALL DC-EC DC-EC 050 thru 3000 only XXXXXXXX-006 OPTIONS Metric threaded core (M3 x 0.5-6H) Guided core Small-diameter/low-mass core (consult factory for mass & dimensions) Captive core XXXXXXXX-010 XXXXXXXX-020 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) Core connecting rod, 6 inches long, 4-40 threads Core connecting rod, 12 inches long, 4-40 threads Core connecting rod, 24 inches long, 4-40 threads Core connecting rod, 36 inches long, 4-40 threads Core connecting rod, 6 inches long, M3x0.5 metric threads Core connecting rod, 12 inches long, M3x0.5 metric threads Mounting block Model PSD 40-15 02291339-000 05282946-006 05282946-012 05282946-024 05282946-036 05282977-006 05282977-012 04560950-000 Refer to our " Accessories for LVDTs" data sheet for our LVDT signal conditioning instrumentation and other accessories. TECHNICAL CONTACT INFORMATION NORTH AMERICA EUROPE ASIA Measurement Specialties, Inc. 1000 Lucas Way Hampton, VA 23666 United States Phone: +1-800-745-8008 Fax: +1-757-766-4297 Email: sales@meas-spec.com Web: www.meas-spec.com MEAS Deutschland GmbH Hauert 13 D-44227 Dortmund Germany Phone: +49-(0)231-9740-0 Fax: +49-(0)231-9740-20 Email: info.de@meas-spec.com Web: www.meas-spec.com Measurement Specialties China Ltd. No. 26, Langshan Road High-tech Park (North) Nanshan District, Shenzhen 518057 China Phone: +86-755-33305088 Fax: +86-755-33305099 Email: info.cn@meas-spec.com Web: www.meas-spec.com The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customer's technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others. DC-EC Series Rev. 7 www.meas-spec.com 4/4 2015-July Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: TE Connectivity: 02560984-010 02560988-000