Chip-immune Inductive Proximity Sensor E2EZ CSM_E2EZ_DS_E_4_1 Chip-immune Inductive Proximity Sensor • Correct operation even with aluminum or iron chips sticking to the Sensor. Only the sensing object is detected. • Pre-wired Smartclick Connector Models also available. Be sure to read Safety Precautions on page 7. Ordering Information Sensors [Refer to Dimensions on page 8.] Pre-wired Models Model Appearance Sensing distance Output configuration Operation mode NO M12 M18 Shielded M30 2 mm 4 mm 8 mm NC DC 2-Wire Models E2EZ-X2D1-N 2M E2EZ-X2D2-N 2M DC 3-wire, NPN E2EZ-X4C1 2M DC 2-wire E2EZ-X4D1-N 2M AC 2-wire E2EZ-X4Y1 2M — DC 3-wire, NPN E2EZ-X8C1 2M — DC 2-wire E2EZ-X8D1-N 2M AC 2-wire E2EZ-X8Y1 2M — E2EZ-X4D2-N 2M E2EZ-X8D2-N 2M Pre-wired Smartclick Connector Models (M12) Model Appearance Sensing distance Output configuration Operation mode NO M12 2 mm Shielded M18 M30 4 mm 8 mm NC DC 2-wire, (3)-(4) pin arrangement E2EZ-X2D1-M1TJ 0.3M — DC 2-wire, (1)-(4) pin arrangement E2EZ-X2D1-M1TGJ 0.3M — DC 2-wire, (3)-(4) pin arrangement E2EZ-X4D1-M1TJ 0.3M — DC 2-wire, (1)-(4) pin arrangement E2EZ-X4D1-M1TGJ 0.3M — DC 2-wire, (3)-(4) pin arrangement E2EZ-X8D1-M1TJ 0.3M — DC 2-wire, (1)-(4) pin arrangement E2EZ-X8D1-M1TGJ 0.3M — 1 E2EZ Pre-wired Connector Models (M12) Model Appearance Sensing distance Output configuration Operation mode NO M12 2 mm Shielded M18 4 mm M30 8 mm NC DC 2-wire, (3)-(4) pin arrangement E2EZ-X2D1-M1J 0.3M — DC 2-wire, (1)-(4) pin arrangement E2EZ-X2D1-M1GJ 0.3M — DC 2-wire, (3)-(4) pin arrangement E2EZ-X4D1-M1J 0.3M — DC 2-wire, (1)-(4) pin arrangement E2EZ-X4D1-M1GJ 0.3M — DC 2-wire, (3)-(4) pin arrangement E2EZ-X8D1-M1J 0.3M — DC 2-wire, (1)-(4) pin arrangement E2EZ-X8D1-M1GJ 0.3M — Accessories (Order Separately) Sensor I/O Connectors (M12) (Models for Pre-wired Connectors: A Connector is not provided with the Sensor. Be sure to order a Connector separately.) [Refer to Dimensions on XS2, XS5.] Appearance Cable length Straight L-shape Sensor I/O Connector model number 2m XS2F-D421-DD0 5m XS2F-D421-GD0 2m 5m XS2F-D422-DD0 XS2F-D422-GD0 2m XS2F-D421-DA0-A 5m XS2F-D421-GA0-A L-shape 2m 5m XS2F-D422-DA0-A XS2F-D422-GA0-A Smartclick Connector Straight 2m XS5F-D421-D80-A 5m XS5F-D421-G80-A Straight Applicable Proximity Sensor model number E2EZ-X@D1-M1J E2EZ-X@D1-M1GJ E2EZ-X@D1-M1TJ E2EZ-X@D1-M1TGJ Mounting Brackets Protective Covers Sputter Protective Covers Refer to Y92@ for details. 2 E2EZ Ratings and Specifications Model E2EZ-X2D@-N E2EZ-X2D@-M1J E2EZ-X2D@-M1GJ Item E2EZ-X4D@-N E2EZ-X4D@-M1J E2EZ-X4D@-M1GJ E2EZ-X8D@-N E2EZ-X8D@-M1J E2EZ-X8D@-M1GJ E2EZ-X4C1 E2EZ-X4Y1 E2EZ-X8C1 E2EZ-X8Y1 Sensing distance 2 mm ±10% 4 mm ±10% 8 mm ±10% 4 mm ±10% 8 mm ±10% Set distance *1 0 to 1.6 mm 0 to 3.2 mm 0 to 6.4 mm 0 to 3.2 mm 0 to 6.4 mm Differential travel 20% max. of sensing distance Detectable object Ferrous metal (The sensing distance decreases with non-ferrous metal. Refer to Engineering Data on page 4.) Standard sensing object Iron, 12 × 12 × 1 mm Iron, 30 × 30 × 1 mm Iron, 54 × 54 × 1 mm Iron, 30 × 30 × 1 mm Iron, 54 × 54 × 1 mm Response frequency *2 200 Hz 100 Hz 30 Hz C Models: 12 Hz Y Models: 5 Hz C Models: 8 Hz Y Models: 5 Hz Power supply voltage (operating voltage range) 12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max. Current consumption Leakage current C Models: 12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max. Y Models: 100 to 220 VAC (90 to 250 VAC), 50/60 Hz --- C Models: 15 mA max. 0.8 mA max. Y Models: 2 mA max. at 100 VAC, 3 mA max. at 200 VAC Load current 3 to 100 mA max. C Models: NPN open-collector output 100 mA max. at 12 VDC (30 VDC max.) 200 mA max. at 24 VDC (30 VDC max.) Y Models: 10 to 200 mA Residual voltage 3 V max. (Load current: 100 mA, Cable length: 2 m) C Models: 2 V max. (Load current: 200 mA, Cable length: 2 m) Y Models: Refer to residual voltage characteristic data Refer to page 4. Indicators D1 Models: Operation indicator (red), Setting indicator (green) D2 Models: Operation indicator (red) C Models: Detection indicator (red) Y Models: Operation indicator (red) Operation mode (with sensing object approaching) D1 Models: NO D2 Models: NC For details, refer to the Timing chart on page 5. NO For details, refer to the Timing chart on page 6. Protection circuits Load short-circuit protection, Surge suppressor C Models: Load short-circuit protection, Reverse polarity protection, Surge suppressor Y Models: Surge suppressor Ambient temperature range Operating/Storage: 0 to 50°C (with no icing or condensation) Ambient humidity range Operating/Storage: 35% to 95% (with no condensation) Temperature influence ±20% max. of sensing distance at 23°C in the temperature range of 0 to 50°C Voltage influence ±2.5% max. of sensing distance at rated voltage in the rated voltage ±10% range Insulation resistance 50 MΩ min. (at 500 VDC) between current-carrying parts and case Dielectric strength 1,000 VAC, 50/60 Hz for 1 minute between current-carrying parts and case Vibration resistance Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions Shock resistance Destruction: 1,000 m/s2 10 times each in X, Y, and Z directions Degree of protection IEC 60529 IP67, in-house standards: oil-resistant Connection method Pre-wired Models (Standard cable length: 2 m) and Pre-wired Connector Models Weight (packed state) E2EZ-X2D@-N: Approx. 70 g E2EZ-X2D@-M1J: Approx. 40 g E2EZ-X2D@-M1GJ: Approx. 40 g Control output Materials Case Nickel-plated brass Sensing surface PBT Clamping nuts Zinc-plated iron Toothed washer Zinc-plated iron Accessories E2EZ-X4D@-N: Approx. 160 g E2EZ-X4D@-M1J: Approx. 90 g E2EZ-X4D@-M1GJ: Approx. 90 g E2EZ-X8D@-N: Approx. 220 g E2EZ-X8D@-M1J: Approx. 160 g E2EZ-X8D@-M1GJ: Approx. 160 g C Models: 1,000 VAC, 50/60 Hz for 1 min between current-carrying parts and case Y Models: 2,000 VAC, 50/60 Hz for 1 min between current-carrying parts and case Approx. 170 g Approx. 270 g Heat-resistant ABS Instruction manual *1. Use the Sensor within the range in which the green indicator is ON. *2. The response frequency is an average value. Measurement conditions are as follows: standard sensing object, a distance of twice the standard sensing object, and a set distance of half the sensing distance. 3 E2EZ Engineering Data (Typical) 2.5 2.0 E2EZ-X4@ E2EZ-X8@ Distance X (mm) Distance X (mm) E2EZ-X2@ Distance X (mm) Sensing Area Y 1.5 5 4 9 8 7 Y 3 X 10 Y 6 X X 5 1.0 2 0.5 1 0.0 −8 0 −10 −8 4 3 2 1 −6 −4 −2 0 2 4 6 Sensing Head 8 Distance Y (mm) −6 −4 −2 0 2 4 6 8 0 −20 −16 −12 −8 10 Distance Y (mm) Sensing Head −4 0 4 8 12 16 20 Distance Y (mm) Sensing Head Influence of Sensing Object Size and Material E2EZ-X4@ d× d t = 1 mm X 4 3 E2EZ-X8@ 10 d× d Distance X (mm) 5 Distance X (mm) Distance X (mm) E2EZ-X2@ t = 1 mm X 8 6 X 8 Iron t = 1 mm Brass Aluminum Brass Iron Brass 2 d× d 6 Stainless steel (SUS304) Iron 10 4 4 Copper Aluminum 1 2 Stainless steel (SUS304) 2 Copper Stainless steel (SUS304) 10 0 20 30 40 10 0 Side length of sensing object: d (mm) 20 30 40 50 0 60 Aluminum 10 Side length of sensing object: d (mm) 20 30 40 50 60 Side length of sensing object: d (mm) 5 4 E2EZ-X4Y1/-X8Y1 at 100 VAC E2EZ-X4Y1/-X8Y1 at 200 VAC Load voltage (V) Residual output voltage (V) E2EZ-X@D@-N Load voltage (V) Residual Output Voltage Residual output voltage ON 100 V 3 Residual output voltage 200 ON 150 V 2 50 100 VAC A 100 200 VAC A 1 50 0 1 3 5 10 30 50 100 300 500 1,000 Load current (mA) Residual load voltage 0 5 10 OFF 50 100 150 200 Load current (mA) 0 Residual load voltage 5 10 50 OFF 100 150 200 Load current (mA) 4 E2EZ Leakage Current A 6 E2EZ-X@D@-N Leakage current (mA) Leakage current (mA) E2EZ-X4Y1/-X8Y1 Protective resistance AC power 5 4 1.5 1.0 3 0.5 2 1 90 100 150 0 200 250 Power supply voltage (V) 10 20 30 40 Power supply voltage (V) I/O Circuit Diagrams DC 2-Wire Models Operation mode Model Timing chart Output circuit Load +V Brown Proximity Sensor main circuit E2EZ-X2D1-N E2EZ-X4D1-N E2EZ-X8D1-N 0V Blue Non-sensing area Unstable sensing area Note: The load can be connected to either the +V or 0 V side. Set position Stable sensing area (M1J) Sensing object 4 100 (%) NO 80(TYP) Rated sensing distance 0 ON Setting indicator OFF (green) ON Operation OFF indicator (red) E2EZ-X2D1-M1J E2EZ-X2D1-M1GJ E2EZ-X4D1-M1J E2EZ-X4D1-M1GJ E2EZ-X8D1-M1J E2EZ-X8D1-M1GJ ON OFF Control output Load Connector Pin Arrangement +V Proximity Sensor main circuit 1 2 4 3 Note: Pins 1 and 2 are not used. Note: The load can be connected to either the +V or 0 V side. 3 0V (M1GJ) 1 Load Connector Pin Arrangement +V Proximity Sensor main circuit 1 2 4 3 Note: Pins 2 and 3 4 0V are not used. Note: The load can be connected to either the +V or 0 V side. Non-sensing area Sensing area Load Sensing object NC E2EZ-X2D2-N E2EZ-X4D2-N E2EZ-X8D2-N (%) 100 Rated sensing distance Proximity Sensor main circuit 0 ON Operation OFF indicator (Red) ON OFF Control output Brown +V Blue 0V Note: The load can be connected to either the +V or 0 V side. 5 E2EZ DC 3-wire Models Operation mode Model Timing chart Output circuit Brown +V Present Load Sensing object Proximity Sensor main circuit Not present NO E2EZ-X4C1 E2EZ-X8C1 Operate Load Black 2.2 Ω * Output Reset ON Blue Detection indicator (red) 0V OFF * 100 mA max. at 12 V, 200 mA max. at 24 V (load current). AC 2-Wire Models Operation mode Model Timing chart Output circuit Brown Present Sensing object Not present NO E2EZ-X4Y1 E2EZ-X8Y1 Operate Load Load Proximity Sensor main circuit Reset Blue ON Operation indicator (red) OFF Connections for Sensor I/O Connectors Sensor I/O Connectors Model 1: Straight 2: L-shape DC 2-Wire Models (IEC pin wiring) E2EZ-X@D1-M1GJ Connections Model XS2F-D42@-@A0-A E2EZ main circuit Model Proximity Sensor Operation mode D: 2-m cable G: 5-m cable E2EZ-X@D1-M1J XS2F-D42@-@D0 D: 2-m cable G: 5-m cable NO 1 1 2 2 3 3 4 4 E2EZ main circuit 1: Straight 2: L-shape DC 2-Wire Models (previous pin wiring) XS2F main circuit E2EZ-X@D1-M1TGJ Blue (−) XS2F 1 1 2 2 3 3 4 4 E2EZ DC 2-Wire Models (IEC pin wiring) Brown (+) Blue (−) Brown (+) XS5F 1 1 2 2 3 3 4 4 Brown (+) White Blue Black (−) XS5F-D421-@80-A D: 2-m cable G: 5-m cable E2EZ-X@D1-M1TJ E2EZ main circuit DC 2-Wire Models (previous pin wiring) XS5F 1 1 2 2 3 3 4 4 Brown White Blue (−) Black (+) Refer to the Sensor I/O Connector Group Catalog (Cat. No. X073) for details. 6 E2EZ Safety Precautions Refer to Warranty and Limitations of Liability. WARNING Aluminum and Iron Cuttings This product is not designed or rated for ensuring safety of persons either directly or indirectly. Do not use it for such purposes. Precautions for Correct Use Do not use this product under ambient conditions that exceed the ratings. ● Design Influence of Surrounding Metal Normally aluminum or iron cuttings will not be detected even if they adhere to or accumulate on the sensing surface. Detection signals may be output for the following: If this occurs, remove the cuttings from the sensing surface. 1. Relationship between the Size of the Cutting (d) and the Size of the Sensing Surface (D) 2 Cuttings of the size d ≥ 3 D on the sensing surface * Cuttings of the size d* (Unit: mm) Model When mounting the Sensor within a metal panel, ensure that the clearances given in the following table are maintained. Failure to maintain these distances may cause deterioration in the performance of the Sensor. Size d D E2EZ-X2@ 10 * E2EZ-X4@ 16 E2EZ-X8@ 28 Cutting Sensing surface D 1 * E2EZ-X2@: d ≥ 3 D on the sensing surface. m n d dia. 2. Cuttings Pressed against the Sensing Surface Pressed against sensing surface. D Cutting l Influence of Surrounding Metal (Unit: mm) Item Model E2EZ-X2@ E2EZ-X4@ E2EZ-X8@ Embedded material Iron Aluminum Iron Aluminum Iron Aluminum l d D 0 2 0 5 0 10 12 25 18 40 30 70 0 2 0 5 0 10 m 8 16 32 n 18 36 27 54 45 90 ● Mounting Do not tighten the nut with excessive force. A washer must be used with the nut. Mutual Interference When installing Sensors face-to-face or side-by-side, ensure that the minimum distances given in the following table are maintained. Mutual Interference (Unit: mm) Model Item A B E2EZ-X2@ 30 20 E2EZ-X4@ 40 50 E2EZ-X8@ 60 100 A B Part B Part A Note: 1. The allowable tightening strength depends on the distance from the edge of the head, as shown in the following table. (A is the distance from the edge of the head. B includes the nut on the head side. If the edge of the nut is in part A, the tightening torque for part A applies instead.) 2. The following torque assume washers are being used. Tightening Torque Model E2EZ-X2D@-@ E2EZ-X4D@-@ E2EZ-X8D@-@ E2EZ-X4C1 E2EZ-X4Y1 E2EZ-X8C1 E2EZ-X8Y1 Part A Dimension (mm) Part B Torque Torque 30 N·m 70 N·m 180 N·m 20 15 N·m 29 N·m 22 29 N·m 39 N·m 7 E2EZ (Unit: mm) Dimensions Tolerance class IT16 applies to dimensions in this data sheet unless otherwise specified. E2EZ-X2D@-N 38 21 dia. Pre-wired Connector Models (-M1J/M1GJ) 9 33 17 4 10 M12 × 1 15 dia. *1 Indicator Two clamping nuts Toothed washer M12 × 1 *2 4-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.3 mm2, Insulator diameter: 1.3 mm), Standard length: 300 mm *1. 4-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.3 mm2, Insulator diameter: 1.3 mm), Standard length: 2 m *2. D1 Models: Operation indicator (red), Setting indicator (green), D2 Models: Operation indicator (red) E2EZ-X8D@-N E2EZ-X4D@-N 48 43 29 dia. 42 dia. 12 38 4 24 M18 × 1 12 43 10 5 36 10 *1 Indicator*2 *1. 6-dia. vinyl-insulated round cable with 22 conducTwo clamping nuts Toothed washer *1 Indicator*2 tors (Conductor cross section: 0.5 mm , Insulator diameter: 1.9 mm), Standard length: 2 m The cable can be extended up to 200 m (separate metal conduit). *2. D1 Models: Operation indicator (red), Setting indicator (green) D2 Models: Operation indicator (red) M30 × 1.5 Pre-wired Connector Models (-M1J/M1GJ) *1. 6-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.5 mm2, InTwo clamping nuts sulator diameter: 1.9 mm), Standard length: 2 m The cable can be extended up to 200 m (sepaToothed washer rate metal conduit). *2. D1 Models: Operation indicator (red), Setting indicator (green) D2 Models: Operation indicator (red) Pre-wired Connector Models (-M1J/M1GJ) M12 × 1 M12 × 1 15 dia. 15 dia. 6-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.5 mm2, Insulator diameter: 1.9 mm), Standard length: 300 mm E2EZ-X4C1 E2EZ-X4Y1 6-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.5 mm2, Insulator diameter: 1.9 mm), Standard length: 300 mm 29 dia. 80 24 60 Indicator*2 *1 M18 × 1 Two toothed washers 4 4 Two clamping nuts *1. C Models: 6-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.5 mm2, Insulator diameter: 1.9 mm), Standard length: 2 m Y Models: 6-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.5 mm2, Insulator diameter: 1.9 mm), Standard length: 2 m E2EZ-X8C1 E2EZ-X8Y1 42 dia. *2. C Models: Detection indicator (red), Y Models: Operation indicator (red) 80 36 60 Indicator*2 *1 M30 × 1.5 Two toothed washers 5 5 Two clamping nuts *1. C Models: 6-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.5 mm2, Insulator diameter: 1.9 mm), Standard length: 2 m Y Models: 6-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.5 mm2, Insulator diameter: 1.9 mm), Standard length: 2 m *2. C Models: Detection indicator (red), Y Models: Operation indicator (red) Mounting Hole Dimensions Model F F (mm) +0.5 E2EZ-X2@ 12.5 dia. −0 E2EZ-X4@ 18.5 dia. −0 E2EZ-X8@ 30.5 dia. +0.5 −0 +0.5 8 Read and Understand This Catalog Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. LIMITATIONS OF LIABILITY OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR. Application Considerations SUITABILITY FOR USE OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use. The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: • Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog. • Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. • Systems, machines, and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to the products. NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. PROGRAMMABLE PRODUCTS OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof. Disclaimers CHANGE IN SPECIFICATIONS Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products. DIMENSIONS AND WEIGHTS Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown. PERFORMANCE DATA Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability. ERRORS AND OMISSIONS The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions. 2010.8 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Automation Company http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2010 All Right Reserved.