Temperature Meter K3MA-L CSM_K3MA-L_DS_E_6_1 Highly Visible LCD Display with 2-color (Red and Green) LEDs * Wide input range - select from two types of platinum-resistance thermometers and ten types of thermocouples. * Front-panel key operation for easy setting. * Average processing function suppresses flicker. * Temperature input shift and temperature unit selection functions. * Easy confirmation of max/min display. * Short 80-mm depth (measured from edge of face plate). * Finger protective cover (standard equipment) protects against electric shock. * Water- and dust-proof NEMA4X (IP66 equivalent) front panel. * Recognized to conform to U.S. and Canadian requirements under the Component Recognition Program of UL. * CE marking. Refer to Safety Precautions for All Digital Panel Meters. Model Number Structure Model Number Legend K3MA-L-@ 1 2 3 1. Input Type L: Platinum-resistance thermometer or thermocouple 2. Output Type None: No output C: With relay contact output (SPDT) 3. Supply Voltage 100-240VAC: 100 to 240 VAC 24VAC/VDC: 24 VAC/VDC Ordering Information List of Models Input type Platinum-resistance thermometer or thermocouple Supply voltage Output Model 100 to 240 VAC None K3MA-L 100-240VAC 1 relay contact output (SPDT) K3MA-L-C 100-240VAC 24 VAC/VDC None K3MA-L 24VAC/VDC 1 relay contact output (SPDT) K3MA-L-C 24VAC/VDC Rubber Packing Model K32-P1 Note: Rubber packing is provided with the Controller. Accessories (Order Separately) Name Shape Model Splash-proof Soft Cover K32-49SC Hard Cover K32-49HC 1 K3MA-L Specifications Ratings K3MA-L 100-240VAC, K3MA-L-C 100-240VAC K3MA-L 24VAC/VDC, K3MA-L-C 24VAC/VDC Supply voltage 100 to 240 VAC 24 VAC (50/60 Hz), 24 VDC Operating voltage range 85% to 110% of the rated supply voltage Power consumption (under maximum load) 6 VA max. Insulation resistance 20 M min. (at 500 VDC) between external terminal and case. Insulation provided between inputs, outputs, and power supply. Dielectric strength 2,000 VAC for 1 min between external terminal and case. Insulation provided between inputs, outputs, and power supply. Noise immunity 1,500 V on power supply terminals in normal or com- 480 V on power supply terminals in normal mode. mon mode. 1,500 V in common mode. 1 s, or 100 ns for square-wave noise with 1 ns. 1 s, or 100 ns for square-wave noise with 1 ns. Vibration resistance Vibration: 10 to 55 Hz, Acceleration: 50 m/s2 5 min each in X, Y, and Z directions for 10 sweeps. 4.5 VA max. (24 VAC) 4.5 W max. (24 VDC) Shock resistance 150 m/s2 (100 m/s2 for relay contact outputs) 3 times each on 3 axes, 6 directions. Ambient temperature Operating: -10C to 55C (with no condensation or icing) Storage: -25C to 65C (with no condensation or icing) Ambient humidity Operating: 25% to 85% (with no condensation) Approved safety standards UL61010-1, conforms to EN61010-1 (Pollution degree 2/overvoltage category II) Conforms to VDE0106/P100 (finger protection) EMC (EMI) Emission Enclosure: Emission AC Mains: (EMS) Immunity ESD: Weight Approx. 200 g EN61326+A1 Industry CISPR 11 Group 1 class A CISPR 11 Group 1 class A EN61326+A1 Industry EN61000-4-2: 4 kV contact discharge 8 kV air discharge Immunity RF-interference: EN61000-4-3: 10 V/m (amplitude-modulated, 80 MHz to 1 GHz) Electrical Fast Transient Noise: EN61000-4-4: 2 kV (power line) Immunity Burst Noise: 1 kV line to line (I/O signal line) Immunity Surge: EN61000-4-5: 1 kV (power line) 2 kV line to ground (power line) Immunity Conducted Disturbance: EN61000-4-6: 3 V (0.15 to 80 MHz) Immunity Voltage Dip/Interrupting: EN61000-4-11: 0.5 cycle, 0, 180, 100% (rated voltage) 2 K3MA-L Characteristics Indication accuracy (at 235C) (See note.) Thermocouple: (0.5% of indication value or 1C, whichever greater) 1 digit max. Platinum-resistance thermometer: (0.5% of indication value or 1C, whichever greater) 1 digit max. Input Thermocouple: K, J, T, E, L, U, N, R, S, B Platinum-resistance thermometer: JPt100, Pt100 Measurement method Double integral method Sampling period 500 ms Display refresh period Sampling period (sampling times multiplied by number of averaging times if average processing is selected.) Max. displayed digits 4 digits (-1999 to 9999) Display 7-segment digital display, Character height: 14.2 mm Polarity display "-" is displayed automatically with a negative input signal. Zero display Leading zeros are not displayed. Input shift Input shift equivalent to the setting value supported for all points within the sensor measurement range. Hold function Max hold (maximum value), Min hold (minimum value) Hysteresis setting Programmable with front-panel key inputs (0001 to 9999). Other functions Display color change (green (red), green, red (green), red) Average processing (simple average OFF/2/4/8 operations) Setting change lockout Parameter initialization Output Relay contact (SPDT) Delay in comparative outputs 1 s max. Degree of protection Front panel: NEMA4X for indoor use (equivalent to IP66) Rear case: IEC standard IP20 Terminals: IEC standard IP00 + finger protection (VDE0106/100) Memory protection Non-volatile memory (EEPROM) (possible to rewrite 100,000 times) Note: The indication accuracy of the K thermocouple at a temperature of -200 to 1300C is 2C 1 digit maximum. The indication accuracy of the T and N thermocouples at a temperature of -100C or less is 2C 1 digit maximum. The indication accuracy of the U and L thermocouples at any temperature is 2C 1 digit maximum. The indication accuracy of the B thermocouple at a temperature of 400C or less is unrestricted. The indication accuracy of the R and S thermocouples at a temperature of 200C or less is 3C 1 digit maximum. Measuring Ranges Platinum-resistance Thermometer Input Range Pt100 JPt100 C -200 to 850 -199.9 to 500.0 0.0 to 100.0 -199.9 to 500.0 0.0 to 100.0 F -300 to 1500 -199.9 to 900.0 0.0 to 210.0 -199.9 to 900.0 0.0 to 210.0 0 1 2 3 4 Parameter Thermocouple Input Range N R S B C -200 to 1300 -20.0 to 500.0 -100 to 850 -20.0 to 400.0 -200 to 400 -199.9 to 400.0 0 to 600 -100 to 850 -200 to 400 -199.9 to 400.0 -200 to 1300 0 to 1700 0 to 1700 100 to 1800 F -300 to 2300 0.0 to 900.0 -100 to 1500 0.0 to 750 -300 to 700 -199.9 to 700.0 0 to 1100 -100 to 1500 -300 to 700 -199.9 to 700.0 -300 to 2300 0 to 3000 0 to 3000 300 to 3200 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Parameter K J T E L U Input/Output Ratings Relay Contact Output Item Resistive load (cos = 1) Inductive load (cos = 0.4, L/R = 7 ms) Rated load (UL ratings) 5 A at 250 VAC, 5 A at 30 VDC 1.5 A at 250 VAC, 1.5 A at 30 VDC Rated carry current 5 A max. (at COM terminal) Max. contact voltage 400 VAC, 150 VDC Max. contact current 5 A (at COM terminal) Max. switching capacity 2,000 VA, 192 W Min. permissible load (P level, reference value) 10 mA at 5 VDC Mechanical life 20,000,000 times min. (at a switching frequency of 1,200 time/min) Electrical life (at an ambient temperature of 20C) 100,000 times min. (at a rated load switching frequency of 10 time/min) 375 VA, 30 W 3 K3MA-L Connections Terminal Arrangement Power supply A1 A2 Output terminals Models with comparative output OUT1 100- to 240-VAC type or 24-VAC/VDC type (No polarity for 24-VDC connection.) E1 E2 E3 E4 E4 Input terminals E5 E6 + - For thermocouple input Terminal No. Name E5 E6 A B B For platinumresistance thermometer input Description A1 - A2 Operation power Connects the operation power supply. E4 - E6 - E5 Thermocouple or platinum-resistance thermometer input Connects the thermocouple or platinum-resistance thermometer input. Outputs Outputs the relay outputs. E1 , E2 - E3 Block Diagram Input Key Input Microcomputer EEPROM Display Output circuit 5V X Contact output (See note.) 12 V Constant voltage circuit Power supply circuit Note: Relay output models only. 4 K3MA-L Operation Main Functions Input Types and Ranges Parameter Setting in-t Input type Platinum-resistance thermometer 0 1 Meaning Pt100 2 JPt100 3 4 Thermocouple 5 K 6 J 7 8 T 9 10 -200 to 850C -300 to 1500F -199.9 to 500.0C -1999 to 900.0F 0.0 to 100.0C 0.0 to 210.0F -199.9 to 500.0C -199.9 to 900.0F 0.0 to 100.0C 0.0 to 210.0F -200 to 1300C -300 to 2300F -20.0 to 500.0C 0.0 to 900.0F -100 to 850C -100 to 1500F -20.0 to 400.0C 0.0 to 750.0F -200 to 400C -300 to 700F -199.9 to 400.0C -199.9 to 700.0F 11 E 0 to 600C 0 to 1100F 12 L -100 to 850C -100 to 1500F 13 U 14 -200 to 400C -300 to 700F -199.9 to 400.0C -199.9 to 700.0F 15 N -200 to 1300C -300 to 2300F 16 R 0 to 1700C 0 to 3000F 17 S 0 to 1700C 0 to 3000F 18 B 100 to 1800C 300 to 3200F Note: The initial value is "5: thermocouple K (-200 to 1300C/-300 to 2300F)." Temperature Unit Selection Either centigrade (C) or fahrenheit (F) can be selected as the temperature unit. Parameter d-u Setting Meaning c Display in C. f Display in F. * Lower limit (Low Acting): The output is turned ON when the measurement value is less than its set value. * Upper and lower limits (Outside Band Acting): An upper limit (H set value) and lower limit (L set value) can be set independently. The output is turned ON when the measurement value is greater than the upper-limit set value or less than the lower-limit set value. Parameter OUT Types (Comparative Output Models Only) out 1.t OUT 1 can be set to operate in one of the three following modes in accordance with the compared values: Setting Upper limit: Alarm operates at upper limit. lo Lower limit: Alarm operates at lower limit. hi-lo Upper and lower limits: Alarm operates at upper and lower limits. * Upper limit (High Acting): The output is turned ON when the measurement value is greater than its set value. Upper Limit (High Acting) OUT1 value Measurement value Output ON OFF Hysteresis Lower Limit (Low Acting) Measurement value Hysteresis OUT1 value Output ON OFF Meaning hi Upper and Lower Limits (Outside Band Acting) OUT1 upper-limit value Measurement value OUT1 lower-limit value ON Output OFF Hysteresis Hysteresis 5 K3MA-L Temperature Input Shift Changing the Display Color Input shift equivalent to the setting value supported for all points within the sensor measurement range. The color of the value displayed can be set to either red or green. For comparative output models, the display color can be set to change from green to red, or from red to green, according to the status of the comparison criterion. Parameter Setting -1999 to 9999 ins Red 258.9 Temperature OUT1 value Green Before shift 192.0 After shift Temperature input shift value Display Auto-return Time This function automatically returns the display to the operation level's current value if no keys are pressed for a preset time (called the display auto-return time). Input Parameter Initialization This function returns all of the parameters to their initial values. Parameter init Setting Meaning off --- on Initializes all parameters. Use this to reset the K3MA-L after returning it to its factory-set condition. Move-to-Protect-Level Time The time required to shift to the protect level can be set as desired. MAX/MIN Display The maximum and minimum measurement (display) values from the time the power is turned ON until the current time can be stored and displayed. This is useful, for example, when measuring the maximum value. Average Processing Current value Average processing stabilizes displayed values to minimize flicker by averaging the fluctuating input signals. Average processing can be performed for the measurement values in either of four steps (OFF, 2 times, 4 times, or 8 times). MAX/MIN MAX/MIN LEVEL MODE SHIFT UP MAX value Max MAX/MIN MAX/MIN LEVEL MODE SHIFT UP MIN value Min This is useful for ignoring rapid fluctuations, e.g., eliminating spike noise. MAX/MIN MAX/MIN LEVEL MODE SHIFT UP Hysteresis (Comparative Output Models Only) The hysteresis of comparative outputs can be set to prevent chattering in the output when the measurement value fluctuates finely near the OUT value. Upper limit (high acting) Set value Hysteresis Measurement value ON Output OFF 6 K3MA-L Nomenclature 2. Operation indicators 1 3. Level indicator Max Min 1. Main indicator SV MAX/MIN LEVEL MODE SHIFT UP 4. MAX/MIN key 5. Level key 8. Up key 6. Mode key Name Functions 1. Main indicator Displays current values, parameters, and set values. 2. Opera- 1 tion indica- SV tors Max Lit when a set value is being displayed or changed. Min 7. Shift key Lit when output 1 is ON. Lit when the main indicator is showing the MAX value. Lit when the main indicator is showing the MIN value. 3. Level indicator Displays the current level that the K3MA-L is in. (See below for details.) 4. MAX/MIN Key Used to display the MAX and MIN values when a measurement value is being displayed. 5. Level Key Used to change the level. 6. Mode Key Used to allow the main indicator to indicate parameters sequentially. 7. Shift Key Used to enable a set value to be changed. When changing a set value, this key is used to move along the digits. 8. Up Key Used to change a set value. Used to set or clear a forced-zero function when a measurement value is being displayed. Level indicator Level p Protect Not lit Operation a s f Adjustment Initial setting Advanced-function setting 7 K3MA-L Dimensions Finger protective cover (provided) 101.2 91 Main indicator character size Panel cut-out 120 min. A 14.2 mm B C D E 85 97 75 min. 7.6 mm 0 92+0.5 +0.5 45 0 12 1.3 80 96 44.8 Mounting Recommended Panel Thickness 1 to 8 mm. Mount the product horizontally. 48 MAX/MIN LEVEL MODE SHIFT The K3MA-L uses M3 terminals. A terminal cover is provided. UP Application Examples Monitoring the temperature of an industrial furnace Sending a temperature alarm for molding equipment Monitoring the bearing temperature for a generator motor PID control E5EN K3MA-L Generator motor K3MA-L Industrial furnace Alarm output Molding Alarmequipment output * Monitoring the temperature of an industrial furnace/sintering furnace. * Monitoring/alarm function for disinfecting equipment. * Monitoring (failsafe checking) abnormal temperatures in molding equipment. * Monitoring the liquid temperature for cleaning devices. K3MA-L Alarm output * Monitoring temperature rises in electric power generating facilities. * Inspecting temperatures in machines and devices. 8 K3MA-L Installation 1. Insert the K3MA-L into the panel cut-out hole. 2. For a waterproof installation, insert the rubber gasket onto the body of the K3MA-L. Wiring * Use the following M3 crimp terminals. 5.8 mm max. 5.8 mm max. Unit Labels (Provided) * The unit labels are not attached to the K3MA-L. Select the desired labels from the provided sheet. 3. Fit the adaptor into the grooves on the left and right sides of the rear case, then push it until it contacts the panel to secure the K3MA-L. Note: For scales and gauges, use the unit labels that are specified by the relevant laws or regulations. LCD Angle of View The K3MA is designed to provide the best visibility at the angles shown in the following diagram. 10 30 Rubber Packing (Sold Separately) K32-P1 If the rubber packing is lost or damaged, it can be ordered using the following model number: K32-P1. (Depending on the operating environment, deterioration, contraction, or hardening of the rubber packing may occur and so, in order to ensure the level of waterproofing specified in NEMA4, periodic replacement is recommended.) Note: Rubber packing is provided with the Controller. Wiring Precautions * Use crimp terminals. * Tighten the terminal screws to a torque of approximately 0.5 Nm. * To avoid the influence of noise, route signal lines and power lines separately. 9 K3MA-L Operating Procedures Operations in Run Mode Checking the Maximum and Minimum Values The maximum and minimum values can be displayed by pressing the MAX/MIN Key while the measurement is being displayed. MAX/MIN Key MAX value MAX/MIN Key MIN value MAX/MIN Key Temperature Input Shift A shift value can be set for a temperature input. The maximum and minimum values can be reset by pressing the MAX/MIN Key for 1 s min. when the maximum or minimum value is displayed. Checking and Setting Comparative Set Values (for Models with the Comparative Output Function) Each time the Mode Key is pressed when the measurement value, maximum value, or minimum value is displayed, the comparative values will be displayed in the following order: OUT1 value (or OUT1 upper-limit value, OUT1 lower-limit value). Measurement value MAX value MIN value Setting Temperature Input Shift Values OUT1 value OUT1 upperlimit value Mode Key Temperature Measurement value Adjustment Level Operation After shift Before shift Input shift value Input OUT1 lowerlimit value Mode Key Mode Key The value set for the temperature input shift is applied to the entire measurement range of the temperature sensor. 10 K3MA-L Levels "Level" refers to a grouping of parameters. The following table lists the operations that are possible in each of the levels, and the diagram tells how to move between levels. There are some parameters that are not displayed for certain models. Level name Function Protect Measurement Setting lockouts. Continue Operation Displaying current values, and setting OUT 1 value. Continue Adjustment Setting communications writing control. Continue Initial setting Making initial settings of input type, output operating action, and other Stopped parameters. Advanced-function setting Setting average processing, display color settings, and other advanced function parameters. Stopped Power ON Operation level + Time set by user (See note.) Protect level Adjustment level Less than 1 s Flashing stops if key is released. 1 s min. 1 s min. + 1 s min. - 123.4 Indicates change of level. Continue to press the key for 2 s min. Initial setting level Password "-0169" 1 s min. Advanced-function setting level Note: The move-to-protect-level time can be set in the advanced-function setting level. 11 K3MA-L Parameters Note: 1. Some parameters are not displayed for certain models. 2. The K3MA-L will stop measurement if the level is changed to the initial setting level or the advanced-function setting level. 3. If the input range is changed, some parameters are set to default values. Therefore, set the input range first. 4. Settings displayed in reversed colors are defaults. Power ON Press Level Key for less than 1 s. Adjustment level Operation level Press Level Key for less than 1 s. Current value - 0 - Temperature input shift For models with the comparative output function MODE OUT1 value - OUT1 upper-limit value - OUT1 lower-limit value - MODE Set one of these. MODE MODE 12 K3MA-L To change a setting, press the Shift Key make the change with the Up Key . Press Level Key for more than 3 s. Press Level Key for less than 1 s. Initial setting level Press Level Key for more than 1 s. Input type - again, and then Advanced-function setting level Enter password "-0169" - Parameter initialization / Average processing / MODE Temperature unit Temperature unit MODE - MODE Models with the comparative output function / / Unit: times OUT1 type OUT1 type MODE Upper Limit Lower Limit Models with the comparative output function Upper/Lower Limits MODE Move to advancedfunction setting level - OUT1 hysteresis OUT1 Hysteresis - MODE MODE Display color change Password: -0169 - MODE Green (red) Green Red (green) Red Display auto-return time - - Unit: s MODE Move-toprotectlevel time MODE - - Unit: s Settings displayed in reversed colors are initial settings. 13 K3MA-L Press Level Key + Mode Key for more than 1 s. Operation Level Protect level Press Level Key + for more than preset time. Mode Key Operation/adjustment lockouts / / Setting level lockouts / / MODE MODE Setting change lockout / MODE Operation/Adjustment Lockouts Initial Settings Restricts key operations for operation level and adjustment level. Parame- Setting ter oapt Operation level Process value display Set value display Power ON Moving to adjustment level 0 Allowed Allowed Allowed 1 Allowed Allowed Prohibited 2 Allowed Prohibited Prohibited * Initial setting is 0. * This cannot be displayed on models not equipped with the comparative output function. Setting Level Lockouts Press the Level Key level. for 3 s min. to move to the initial setting Select the input type. If desired, shift to the adjustment level to set the temperature input shift value. Restricts shifting to initial setting level or advanced-function setting level. Parameter icpt Setting Shift to initial setting level Shift to advancedfunction setting level 0 Allowed 1 Allowed Prohibited 2 Prohibited Prohibited Allowed Setting Change Lockout Restricts setting changes by key operation. When this lockout is set, it is no longer possible to shift to a setting change mode. Parameter wtpt Setting If required, shift to the advanced-function setting level to set the number of measurements for averaging, hysteresis values, auto-zero time, display color change, display auto-return time, or move-to-protect-level time. Press the Level Key operation level. for less than 1 s min. to return to the Set the OUT values. Setting change by key operation off Allowed on Prohibited Measurement starts. However, all protect level parameters can still be changed. 14 K3MA-L Setting Example Here, the temperature inside the furnace is to be displayed in centigrade (C). Temperature sensor: E52-PR Thermocouple, Measurement range: 0 to 1,400C. Initial Settings The settings for the following example are shown here. Example: Monitoring the temperature of an industrial furnace 1. Set the K3MA-L input type to the thermocouple R input range. Parameter: in-t (input type), Setting value: 16 2. Select centigrade (C) as the temperature unit. Parameter: d-u (temperature unit), Setting value: c If you are using a comparative output model, make the setting as desired. E52-PR Thermocouple Industrial furnace 1 Max Min SV MAX/MIN LEVEL MODE SHIFT UP K3MA-L-C 100-240VAC Troubleshooting When an error occurs, error details will be displayed on the main indicator. Confirm the error from the main indicator and take the appropriate countermeasures. Level display Main indicator Error contents Countermeasures Not lit e111 RAM memory error Repair is necessary. Consult your OMRON sales representative. 5 e111 EEPROM memory error When this error is displayed, press the Level Key for 3 seconds, and the settings will be restored to the factory settings. If the error cannot be recovered, repair is necessary. Consult your OMRON sales representative. Not lit Flashes s.err Input error Confirm that the temperature sensor is correctly connected, and that there are no broken signal lines to the temperature sensor. Input value is out of the specified range (control range). Set the value within the range immediately. If the condition does not return to normal, repair is necessary. Consult your OMRON sales representative. Not lit Flashes 9999 The measurement value after tem- The temperature input correction perature input correction exceeds value may be inappropriate. 9999. Use the adjustment level to review the temperature input correction value. Not lit Flashes -1999 The measurement value after tem- The temperature input correction perature input correction is lower value may be inappropriate. than -1999. Use the adjustment level to review the temperature input correction value. ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. In the interest of product improvement, specifications are subject to change without notice. 15 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. 2010.11 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. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Omron: K3MA-L 24VAC/VDC K3MA-L-C 24VAC/VDC