Omron K3MA-J Series Manual
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Omron K3MA-J Series Manual

Process meter, highly visible lcd display with 2-color red and green leds
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Process Meter
K3MA-J
Highly Visible LCD Display with 2-color
(Red and Green) LEDs
• Multi-range DC voltage/current input.
• Front-panel key operation for easy setting.
• Average processing function suppresses flicker.
• Scaling, front-panel forced-zero, zero-limit functions.
• Easy confirmation of max/min display.
• Short 80-mm depth (measured from edge of face plate).
• Finger protective cover (standard equipment) guards against electric
shock.
• Water- and dust-proof NEMA4X (IP66 equivalent) front panel.
• Recognized to U.S. and Canadian requirements under the Compo-
nent Recognition Program of UL.
• CE marking.
Refer to Safety Precautions for All Digital Panel
Meters.
Model Number Structure
■ Model Number Legend
K3MA-J-@
1 2
3
1. Input Type
J:
DC voltage/current
2. Comparative Output Model
None: No output
A2:
2 relay contact outputs (SPST-NO)

Ordering Information

■ List of Models
Input type
DC voltage/current
100 to 240 VAC
24 VAC/VDC
* Changing the display color based on comparison with a reference value is not possible.
Supply voltage
Comparative Output Model
None *
2 relay contact outputs (SPST-NO)
None *
2 relay contact outputs (SPST-NO)
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
3. Supply Voltage
100-240VAC: 100 to 240 VAC
24VAC/VDC: 24 VAC/VDC
K3MA-J 100-240VAC
K3MA-J-A2 100-240VAC
K3MA-J 24VAC/VDC
K3MA-J-A2 24VAC/VDC
CSM_K3MA-J_DS_E_11_1
Model
1

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Summary of Contents for Omron K3MA-J Series

  • Page 1: Ordering Information

    • Water- and dust-proof NEMA4X (IP66 equivalent) front panel. For the most recent information on models that have been certified for • Recognized to U.S. and Canadian requirements under the Compo- safety standards, refer to your OMRON website. nent Recognition Program of UL. • CE marking.

  • Page 2: Specifications

    K3MA-J ■ Accessories (Order Separately) Name Shape Model Splash-proof Soft Cover K32-49SC Hard Cover K32-49HC Watertight Cover Y92A-49N Rubber Packing K32-P1 Note: Rubber packing is provided with the Controller. Specifications ■ Ratings Model K3MA-J 100-240VAC, K3MA-J-A2 100-240VAC K3MA-J 24VAC/VDC, K3MA-J-A2 24VAC/VDC Supply voltage 100 to 240 VAC 24 VAC/VDC...
  • Page 3 K3MA-J ■ Characteristics DC voltage/current (0 to 20 mA, 4 to 20 mA, 0 to 5 V, 1 to 5 V, ±5 V, ±10 V) Input signal A/D conversion Double integral method Sampling period 250 ms Display refresh period Sampling period (sampling times multiplied by number of measurements for averaging if average pro- cessing is selected.) Max.

  • Page 4: Block Diagram

    K3MA-J Connections ■ Terminal Arrangement Power Models with supply Output comparative terminals output OUT1 100- to 240-VAC OUT2 type or 24-VAC/ Input VDC type terminals (No polarity for 24-VDC Voltage input connection.) Current input For voltage input For current input Terminal No.

  • Page 5: Operation

    K3MA-J Operation ■ Main Functions Input Types and Ranges Input type (setting parameter) Function Input range Setting range (setting parameters) Displayable from −19999 to 99999 Input range (in-t) Selects DC voltage/current signal 0 to 20 mA (0-20) input with scaling function. 4 to 20 mA (4-20) The position of the decimal point...

  • Page 6: Convenient Functions

    K3MA-J Convenient Functions Scaling Teach The parameters (inp.1, inp.2) for the K3MA-J’s initial setting level can be set using actual input values with the teaching function. After displaying the parameters, the actual input settings can be made with the following operation. Teaching mode to shift to the next parameter...
  • Page 7 K3MA-J Parameter Initialization Changing the Display Color This function returns all of the parameters to their initial values. The color of the value displayed can be set to either red or green. For comparative output models (K3MA-J-A2), the display color can be Parameter Setting value Meaning...
  • Page 8 K3MA-J Nomenclature 2. Operation indicators 1. Main indicator 3. Level indicator MAX/MIN LEVEL MODE SHIFT 4. MAX/MIN key 8. Up key 5. Level key 7. Shift key 6. Mode key Name Functions 1. Main indicator Displays current values, parameters, and set values. 2.

  • Page 9: Application Examples

    K3MA-J Application Examples Monitoring interior Displaying/outputting Flowrate sensor tank pressure liquid level E8AA Pressure Sensor m/min 4 to 20 mA 4 to 20 mA K3MA-J or 0 to 10 V K3MA-J E4PA Ultra- sonic Dis- Pump placement Sensor 4 to 20 mA K3MA-J Pump Flowrate Sensor...

  • Page 10: Operating Procedures

    K3MA-J Operating Procedures ■ Operations in Run Mode Setting and Releasing a Checking the Maximum and Minimum Values Forced Zero The maximum and minimum values can be displayed by pressing the MAX/MIN Key while the measurement is being displayed. Setting a Forced Zero Any reference point can be easily set to zero.
  • Page 11 K3MA-J Power ON Operation level Time set by user (See note.) Flashing stops if key 1 s min. is released. Protect level 1 s min. -1234.5 1 s min. Indicates change of level. Continue to press the key for 2 s min. Initial setting level Password "-0169"...
  • Page 12 K3MA-J ■ Parameters Some parameters are not displayed for certain models. The K3MA-J will stop measurement if the level is changed to the initial setting level or advanced-function setting level. the input range is changed, some parameters are set to default values. Therefore, et the input range first.
  • Page 13 K3MA-J To change a setting, press the Shift Key again, and then make the change with the Up Key Press Level more than 3 s. Press Level Key for more than 1 s. Advanced-function Initial setting level setting level Press Level Enter more than 1 s.
  • Page 14 K3MA-J Press Level Key + Mode Key for more than 1 s. Operation level Protect level Press Level Key + Mode Key for more than preset time. Operation/adjustment lockouts MODE Setting level lockout MODE Setting change lockout MODE Forced-zero shift lockout MODE ■...

  • Page 15: Initial Settings

    Not lit RAM memory error Repair is necessary. Consult your OMRON sales representative. e111 EEPROM memory error When this error is displayed, press the Level Key for 3 sec- onds, and the settings will be restored to the factory set- tings.
  • Page 16 (a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied.
  • Page 17 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Omron K3MA-J-A2 24VAC/VDC K3MA-J 24VAC/VDC...

This manual is also suitable for:

K3ma-j 100-240vacK3ma-j-a2 100-240vacK3ma-j-a2 24vac/vdcK3ma-j 24vac/vdc

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