Datasheet

ManualsBrandsOmron Industrial Automation ManualsAutomationTemperature Display

Temperature Meter K3MA-L K-45

Panel

indicators

Temperature Meter

K3MA-L

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 func-

tions.

• 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 un-

der the Component Recognition Program of UL.

• CE marking.

Model Number Structure

■ Model Number Legend

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

■ Accessories (Order Separately)

12 3

K3MA-L-@

Input type Supply voltage Output Model

Platinum-resistance thermometer or

thermocouple

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

Name Shape Model

Splash-proof Soft Cover K32-49SC

Hard Cover K32-49HC

Summary of content (16 pages)

PAGE 1
Temperature Meter K3MA-L 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).
PAGE 2
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 Operating voltage range 85% to 110% of the rated supply voltage Power consumption (under maximum load) 6 VA max. Insulation resistance 20 MΩ 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.
PAGE 3
■ Characteristics Indication accuracy (at 23±5°C) (See note.) Thermocouple: (±0.5% of indication value or ±1°C, whichever greater) ±1 digit max. Platinum-resistance thermometer: (±0.5% of indication value or ±1°C, whichever greater) ±1 digit max.
PAGE 4
■ Input/Output Ratings Relay Contact Output Item Resistive load (cosφ = 1) Rated load (UL ratings) Inductive load (cosφ = 0.4, L/R = 7 ms) 5 A at 250 VAC, 5 A at 30 VDC Rated carry current 5 A max. (at COM terminal) Max. contact voltage 400 VAC, 150 VDC 1.5 A at 250 VAC, 1.5 A at 30 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.
PAGE 5
Operation ■ Main Functions Input Types and Ranges Parameter Setting in-t Input type 0 Platinum-resistance thermometer 1 Meaning Pt100 2 3 JPt100 4 5 Thermocouple K 6 7 J 8 9 T 10 −200 to 850°C −300 to 1500°F −199.9 to 500.0°C −1999 to 900.0°F 0.0 to 100.0°C 0.0 to 210.0°F −199.9 to 500.0°C −199.9 to 900.0°F 0.0 to 100.0°C 0.0 to 210.0°F −200 to 1300°C −300 to 2300°F −20.0 to 500.0°C 0.0 to 900.0°F −100 to 850°C −100 to 1500°F −20.0 to 400.0°C 0.0 to 750.
PAGE 6
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 ins Setting -1999 to 9999 Red 258.9 Temperature OUT1 value Green Before shift 192.
PAGE 7
Nomenclature 2. Operation indicators 1 Max Min 1. Main indicator SV 3. Level indicator 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.
PAGE 8
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 45+0.5 12 1.3 80 96 44.8 The K3MA-L uses M3 terminals. A terminal cover is provided.
PAGE 9
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. 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. ■ Wiring Precautions • Use crimp terminals. • Tighten the terminal screws to a torque of approximately 0.5 N⋅m. • To avoid the influence of noise, route signal lines and power lines separately.
PAGE 10
Precautions !WARNING Do not touch any of the terminals while the power is being supplied. Doing so may result in electric shock. !Caution Do not disassemble the product or touch the internal components of the product while the power is being supplied. Doing so may result in electric shock. !Caution Do not allow metal objects or wire cuttings to enter the product. Doing so may result in electric shock, fire, or malfunction.
PAGE 11
Operating Procedures ■ 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.
PAGE 12
■ 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.
PAGE 13
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.
PAGE 14
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.
PAGE 15
■ Setting Example Here, the temperature inside the furnace is to be displayed in centigrade (°C). Temperature sensor: E52-PR Thermocouple, Measurement range: 0 to 1,400°C. 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.
PAGE 16
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.