GCD-SE Series – Single Ended DC Gage Heads • Hermetically sealed housing • Single ended 8.5 to 24VDC supply • Low current consumption (only 6mA) • Ideal for battery operation • IEC IP68 rating to 1,000 PSI [70 bars] • Long strokes up to 2 inches • Hardened tool steel contact tip • High side load resistance DESCRIPTION The GCD-SE Series of heavy-duty DC operated gage heads enable high performance in environments containing moisture, dirt, and fluid contaminants. With a spring loaded LVDT, a precision linear bearing, and internal conditioning electronics operating on a single ended 8.5 to 28VDC input with minimal current draw, the GCD-SE is ideally suited to portable measurement applications in difficult environments. Internal EMI, ESD and RFI protection, provide CE compliance when correctly installed. Synchronous demodulation ensures unsurpassed noise rejection. These robust gage heads allow measurements over stroke ranges from 0 to 0.1 inch [2.54mm] up to 0 to 2 inches [50.8 mm]. The spring force is typically 9oz [255 grams] at fully compressed electrical stroke. A removable black-chromed, hardened tool steel tip is threaded (4-48UNF-2A) to the working end. Internal construction prevents the core and shaft from rotating as they move longitudinally. The integral electrical connector (welded) provides for easy installation and allows replacing a damaged cable without sacrificing the sensor. Installation and adjustment are facilitated by an external ½-20 mounting thread and the two locknuts supplied with each unit. Like in most of our LVDTs, the GCD-SE 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 vibration and shock. The ruggedness, long life cycle, and very high reliability of the GCD-SE Series provide the lowest cost of ownership over the life of the equipment onto which they are installed. The one-piece front end (barrel which contains the bearing assembly), machined from solid stainless steel bar, coupled with a bronze bushing, has far greater resistance to bending forces and side loads compared to other designs. This is particularly important on the longer stroke versions; it reduces the common risk of probe damage/bending during installation or maintenance of industrial equipment. The GCD-SE Series designs also require fewer parts and weld joints, thereby increasing overall structural integrity and reliability. MEAS offers options, such as mating connector plugs, special contact tips (including AGD dial indicator tips), air- extend/spring retract, and cable assemblies. Also see our other models with built-in signal conditioning, GCD (DC voltage), GCT (4-20mA 2-wire loop) and GC-485 (RS-485 Digital Series), as well as the AC operated GCA. 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 SchaevitzTM trademark in 2000. FEATURES APPLICATIONS • All-welded stainless steel construction • Roller Gap Control • Resistant to harsh environments • In-process Wet Grinding • MS type connector (MIL-C-5015) • Hand Held Gages • Long cycle life • X-Y Positional Feedback • CE compliant • Automotive chassis track testing • Calibration certificate supplied with each unit • Remote site monitoring • Air extend/spring retract available (consult factory) GCD-SE Series Gage Heads Rev. 7 www.meas-spec.com 2015-July 1/4

GCD-SE Series – Single Ended DC Gage Heads PERFORMANCE SPECIFICATIONS ELECTRICAL SPECIFICATIONS Parameter GCD-SE 100 GCD-SE 250 GCD-SE 500 GCD-SE 1000 GCD-SE 2000 Stroke/gaging range 0 to 0.10 [2.54] 0 to 0.25 [6.35] 0 to 0.50 [12.7] 0 to 1 [25.4] 0 to 2 [50.8] Sensitivity (VDC/inch) 50 20 10 5 2.5 Supply voltage +8.5 to +28VDC Supply current 10mA maximum; 6mA typical Line regulation 0.2 mV/V Output voltage range 0 to +5VDC (4 wire); +1 to +6VDC (3 wire) - Increases when the core is displaced towards connector Output Impedance 1 Ohm Noise and ripple 10 mV RMS, maximum Non-linearity ±0.25% of FR, maximum Repeatability 25 µ-inch [0.6 µm] Stability 0.1% of FSO after warm up Temperature coefficient of sensitivity 0.028%/°F [0.05%/°C] Frequency response 15Hz, maximum (dynamic) ENVIRONMENTAL SPECIFICATIONS & MATERIALS Operating temperature -13°F to +185°F [-25°C to 85°C] Survival temperature -65°F to +250°F [-55°C to 125°C] Shock survival 250 g (11ms half-sine) Vibration tolerance 10 g up to 2kHz Housing material AISI 400 Series stainless steel Electrical connector 6-pin MS type connector (MIL-C-5015) IEC 60529 rating IP68 to 1,000 PSI [70 bars] with use of proper mating connector plug 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=S for a 0 to S stroke range FSO (Full Scale Output): Largest absolute value of the outputs measured at the ends of the range WIRING SCHEMATICS & BLOCK DIAGRAM Important: NEVER connect Pins D and C together; NEVER connect Pin D to other GCD-SE’s A through E: Connector pin assignments GCD-SE Series Gage Heads Rev. 7 www.meas-spec.com 2015-July 2/4

GCD-SE Series – Single Ended DC Gage Heads MECHANICAL SPECIFICATIONS Parameter GCD-SE 100 GCD-SE 250 GCD-SE 500 GCD-SE 1000 GCD-SE 2000 Stroke/gaging range 0.10 [2.5] 0.25 [6.4] 0.50 [12.7] 1 [25.4] 2 [50.8] Pre-travel 0.15 [3.8] 0.25 [6.3] 0.04 [1.0] 0.20 [5.1] 0.10 [2.5] Over-travel (minimum) 0.30 [7.6] 0.30 [7.6] 0.25 [6.3] 0.35 [8.9] 0.10 [2.5] Main body length “A” 4.06 [103.1] 4.9 [124.5] 5.76 [146.3] 7.46 [189.5] 9.42 [239.3] Overall body length “B” 5.42 [137.7] 6.27 [159.3] 7.13 [181.1] 10.45 [265.4] 12.41 [315.2] Plunger length “C” (fully extended; 0 or 1 VDC out) 6.48 [164.6] 7.3 [185.4] 8.16 [207.3] 12.93 [328.4] 14.87 [377.7] Weight (Ounce) 2.5 oz 3.3 oz 3.5 oz 5.5 oz 8.0 oz Weight (Gram) 71 G 93 G 100 G 156 G 227 G Spring force Typically 9oz [255 grams] at fully compressed electrical stroke REPLACEMENT/OPTIONAL CONTACT TIPS Dimensions are in inch [mm] GCD-SE Series Gage Heads Rev. 7 www.meas-spec.com 2015-July 3/4

GCD-SE Series – Single Ended DC Gage Heads ORDERING INFORMATION Description Model Part Number 0.10 inch gage head GCD-SE 100 02351006-000 0.25 inch gage head GCD-SE 250 02351007-000 0.5 inch gage head GCD-SE 500 02351008-000 1 inch gage head GCD-SE 1000 02351009-000 2 inch gage head GCD-SE 2000 02351010-000 OPTIONS Air extend/spring retract gage head (Consult factory) All GC Series XXXXXXXX-150 ACCESSORIES DC power supply (15VDC) Model PSD 40-15 02291339-000 Mating connector kit PT06A-10-6S(SR) 62101011-000 Cable with wired mating connector (1) GCD-SE to Stripped & Tinned 04290589-000 Replacement contact tips Contact Tip 2 67010005-000 Contact Tip 3 67010006-000 Contact Tip 4 67010002-000 Contact Tip 5 67010007-000 Contact Tip 6 67010008-000 Contact Tip 7 67010009-000 Contact Tip 8 67010010-000 Contact Tip 9 67010001-000 Contact Tip 10 67010011-000 (1) Cables are shielded, 10 foot long, and rated 80°C [176°F] operating. Consult factory for other lengths. Refer to our “Options and Accessories for Gage Head” data sheet. TECHNICAL CONTACT INFORMATION NORTH AMERICA EUROPE ASIA Measurement Specialties, Inc. MEAS Deutschland GmbH Measurement Specialties China Ltd. 1000 Lucas Way Hauert 13 No. 26, Langshan Road Hampton, VA 23666 D-44227 Dortmund High-tech Park (North) United States Germany Nanshan District, Shenzhen 518057 Phone: +1-800-745-8008 Phone: +49-(0)231-9740-0 China Fax: +1-757-766-4297 Fax: +49-(0)231-9740-20 Phone: +86-755-33305088 Email: sales@meas-spec.com Email: info.de@meas-spec.com Fax: +86-755-33305099 Web: www.meas-spec.com Web: www.meas-spec.com 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. GCD-SE Series Gage Heads Rev. 7 www.meas-spec.com 2015-July 4/4

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