Omron K3ma-j series User manual

Process Meter K3MA-J 1

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

Component Recognition Program of UL.

• CE marking.

Model Number Structure

■Model Number Legend

1. Input Type

J: DC voltage/current

2. Output Type

None:No output

A2: 2 relay contact outputs (SPST-NO)

3. Supply Voltage

100-240VAC: 100 to 240 VAC

24VAC/VDC: 24 VAC/VDC

Ordering Information

■List of Models

■Accessories (Order Separately)

K3MA-J-@

1 2 3

Input type Supply voltage Output Model

DC voltage/current 100 to 240 VAC None K3MA-J 100-240VAC

2 relay contact outputs (SPST-NO) K3MA-J-A2 100-240VAC

24 VAC/VDC None K3MA-J 24VAC/VDC

2 relay contact outputs (SPST-NO) K3MA-J-A2 24VAC/VDC

Name Shape Model

Splash-proof Soft Cover K32-49SC

Hard Cover K32-49HC

2Process Meter K3MA-J

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

Operating voltage range 85% to 110% of the rated supply voltage

Power consumption

(under maximum load) 6 VA max. 4.5 VA max. (24 VAC)

4.5 W max. (24 VDC)

Insulation resistance 20 MΩmin. (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-

mon mode.

±1 µs, or 100 ns for square-wave noise with 1 ns.

±480 V on power supply terminals in normal mode.

±1,500 V in common mode.

±1 µs, 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.

Shock resistance 150 m/s2(100 m/s2for relay contact outputs) 3 times each on 3 axes, 6 directions.

Ambient temperature Operating: −10°C to 55°C (with no condensation or icing)

Storage: −25°C to 65°C (with no condensation or icing)

Ambient humidity Operating: 25% to 85% (with no condensation)

Approved safety standards UL3121-1, conforms to EN61010-1 (Pollution degree 2/overvoltage category II)

Conforms to VDE0106/P100 (finger protection)

EMC (EMI) EN61326+A1 Industry

Emission Enclosure: CISPR 11 Group 1 class A: CISRP16-1/-2

Emission AC Mains: CISPR 11 Group 1 class A: CISRP16-1/-2

(EMS) EN61326+A1 Industry

Immunity ESD: 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)

Weight Approx. 200 g

Process Meter K3MA-J 3

■Characteristics

■Measuring Ranges

Process Voltage/Current Inputs

■Input/Output Ratings

Relay Contact Output

Input signal DC voltage/current (0 to 20 mA, 4 to 20 mA, 0 to 5 V, 1 to 5 V, ±5 V, ±10 V)

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. displayed digits 5 digits (−19999 to 99999)

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.

Scaling function Programmable with front-panel key inputs (range of display: −19999 to 99999). The decimal point po-

sition can be set as desired.

Hold function Max. hold (maximum value), Min. hold (minimum value)

Hysteresis setting Programmable with front-panel key inputs (0001 to 9999).

Other functions Forced-zero (with front-panel key)

Zero-limit

Scaling teach function

Display color change (green (red), green, red (green), red)

OUT type change (upper limit, lower limit, upper/lower limit)

Average processing (simple average)

Output Relays: 2 SPST-NO

Delay in comparative outputs 750 ms 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)

Input Measuring range Measuring accuracy Input impedance Displayable range

DC voltage 1.000 to 5.000 V ±0.1% FS ±1 digit max.

(at 23±3°C) 1 MΩmin. –19999 to 99999

(with scaling function)

0.000 to 5.000 V

–5.000 to 5.000 V ±0.1% FS ±1 digit max.

(at 23±5°C)

–10.00 to 10.00 V

DC current 4.00 to 20.00 mA/

0.00 to 20.00 mA ±0.1% FS ±1 digit max.

(at 23±3°C) 45 Ω

Item Resistive load (cosφ= 1) Inductive load (cosφ= 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 250 VAC, 150 VDC

Max. contact current 5 A (at COM terminal)

Max. switching capacity 1,250 VA, 150 W 250 VA, 30 W

Min. permissible load

(P level, reference value) 10 mA at 5 VDC

Mechanical life 5,000,000 times min. (at a switching frequency of 1,200 times/min)

Electrical life

(at an ambient temperature of 20°C) 100,000 times min. (at a rated load switching frequency of 10 times/min)

4Process Meter K3MA-J

Connections

■Terminal Arrangement

■Block Diagram

■Input Circuits

Analog Input (DC Voltage/Current)

Power

supply Output

terminals

Input

terminals

100- to 240-VAC

type or 24-VAC/

VDC type

(No polarity for

24-VDC

connection.)

Models with

comparative

output

Voltage input

For voltage input For current input

OUT1 OUT2

COM

Current input

Terminal No. Name Description

Operation power Connects the operation power supply.

Analog input Connects the voltage or current analog input.

Outputs Outputs the relay outputs.

A1 A2

E4 E6

,E5

E1 E2

,E3

5 V 12 V

Input Input circuit

Micro-

computer

Key

Display

Output

circuit Contact output

(See note.)

Constant voltage circuit

Power supply circuit

EEPROM

Note: Relay output models only.

45 Ω

Voltage input Current input

COM

To A/D

A+B=1 MΩCOM

To A/D

Process Meter K3MA-J 5

Operation

■Main Functions

Input Types and Ranges

Note: The initial value for the input range is “4 to 20 mA (4-20).”

Scaling

•Analog (Process) Inputs

The K3MA-J converts input signals into desired physical values.

INPUT2: Any input value

DISPLAY2: Displayed value corresponding to INPUT2

INPUT1: Any input value

DISPLAY1: Displayed value corresponding to INPUT1

When DISPLAY1 is set for INPUT1, and DISPLAY2 is set for INPUT2, a line will be displayed joining the two points. (Raise shift, reverse scaling,

plus/minus display, etc., can be adjusted as desired.)

Input type (setting parameter) Function Input range

(setting parameters) Setting range

Input range (in-t) Selects DC voltage/current signal

input 0 to 20 mA (0-20) Displayable from −19999 to 99999

with scaling function.

The position of the decimal point

can be set as desired.

4 to 20 mA (4-20)

0 to 5 V (0-5)

1 to 5 V (1-5)

±5 V (5)

±10 V (10)

Parameter Setting value Meaning Parameter Setting value Meaning

inp.1 -19999 to 99999 Input value for dsp.1 dp %.%%%% Display four digits after decimal point

dsp.1 -19999 to 99999 Display value for inp.1 %%.%%% Display three digits after decimal point

inp.2 -19999 to 99999 Input value for dsp.2 %%%.%% Display two digits after decimal point

dsp.2 -19999 to 99999 Display value for inp.2 %%%%.% Display one digit after decimal point

%%%%% No decimal point

()()

()

()Reverse scaling also possible.

Input value

Display value Display value

DISPLAY 2

DISPLAY 1

DISPLAY 2

INPUT 1 INPUT 2

Teaching with actual values is possible.

Instead of setting by inputting with the Up Key and Shift Key, current values can be

input as scaling input values for teaching. This is useful for making settings while checking the

operation status of the K3MA-J.

The decimal point can be optionally displayed.

When displaying the decimal point, consider the

number of digits to follow the decimal point prior to

setting the scaling display value.

Reverse scaling, where the display value decreases as

the input value increases, is also possible.

6Process Meter 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.

OUT Types (Comparative Output Models Only)

OUT 1 and OUT 2 can be set to operate in one of the three following modes in accordance with the compared values:

•Upper limit (High Acting):

The output is turned ON when the measurement value is greater than its set value.

•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 upper-limit set value or less than the lower-limit set value.

The three types of output operations shown above can be combined as desired. The following are examples of possible combinations.

“T” lights to

indicate that the

parameter is

valid for teaching.

Monitor mode

Teaching mode

“T” flashes.

Normal change

“T” turns OFF.

Use to register

and shift to monitor

mode.

Use to shift to

the next parameter

without registering.

Next parameter

Upper Limit (High Acting) Lower Limit (Low Acting)

OUT1/2 value

Measurement value

OFF

Output ON

OFF

Output ON

OFF

Output

OUT1/2 value

Measurement value Measurement value

Hysteresis

Upper and Lower Limits

(Outside Band Acting)

OUT1/2 upper-limit value

OUT1/2 lower-limit value

Upper Limit 2-stage Output Threshold Output Combination of Upper Limit and

Upper/Lower Limits

OUT2

value

OUT1

value

OUT2

OUT1

OFF

OUT2

OUT1

OFF

OUT2

OUT1

OFF

Measurement

value

Measurement

value

Measurement

value

OUT2 upper-limit

value

OUT1 upper-limit

value

OUT1 lower-limit

value

OUT2 lower-limit

value

OUT2 Upper-limit

value

OUT1 value

OUT2 Lower-limit

value

Process Meter K3MA-J 7

Parameter Initialization

This function returns all of the parameters to their initial values.

Use this to reset the K3MA-J after returning it to its factory-set condi-

tion.

Average Processing

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).

This is useful for ignoring rapid fluctuations, e.g., eliminating spike

noise.

Hysteresis (Comparative Output

Models Only)

The hysteresis of comparative outputs can be set to prevent chatter-

ing in the output when the measurement value fluctuates finely near

the OUT value.

Zero-limit Function

The zero-limit function changes any value below the set value to

zero. This is useful when you want to change negative values to zero

rather than display them, or when you want to make the display in the

smallest part of the input range zero.

Changing the Display Color

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.

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 dis-

play auto-return time).

Move-to-Protect-Level Time

The time required to shift to the protect level can be set as desired.

Forced-zero Function

It is possible to shift from a value to the zero point with one touch of

the Up Key on the front panel (for example, when adjusting reference

values).

Note: Used only for releasing the forced-zero with the Protect menu.

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.

Parameter Setting value Meaning

init off ---

on Initializes all parame-

ters.

Parameter Setting value Meaning

=-lim off OFF: No zero-limit

on ON: Zero-limit

lim-p 0 to 99 0 to 99: Zero-limit value

Upper limit (high acting)

Set value

Measurement value

Hysteresis

Output ON

OFF

Display

Zero-limit

setting value

Input

8.781

100.05

113.36

OUT1 value

OUT2 value

Green

Red

MAX/MIN LEVEL MODE SHIFT

Current value

MAX value

MIN value

MAX/MIN

Max

Min

MAX/MIN LEVEL MODE SHIFT UP

8Process Meter K3MA-J

Nomenclature

Dimensions

Name Functions

1. Main indicator Displays current values, parameters, and set values.

2. Opera-

tion indica-

tors

1 Lit when output 1 is ON.

2 Lit when output 2 is ON.

SV Lit when a set value is being displayed or changed.

Max Lit when the main indicator is showing the MAX value.

Min Lit when the main indicator is showing the MIN value.

Z Lit during the forced-zero operation.

T Lit when the teaching function is operable. Blinks while the teaching function is operating.

3. Level indicator Displays the current level that the K3MA-J 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

pProtect

Not lit Operation

sInitial setting

fAdvanced-function setting

MAX/MIN LEVEL MODE SHIFT UP

Max

Min

2. Operation indicators

3. Level indicator

4. MAX/MIN key

5. Level key 6. Mode key 7. Shift key

8. Up key

1. Main indicator

ABCDE

UPSHIFTMODELEVELMAX/MIN

101.2

1.3

44.8

45+0.5

92+0.5

Finger protective

cover (provided) Main indicator

character size Panel cut-out

7.6 mm

14.2 mm

75 min.

120 min.

The K3MA-J uses M3 terminals.

Process Meter K3MA-J 9

Application Examples

Installation

1. Insert the K3MA-J into the panel cut-out hole.

2. For a waterproof installation, insert the rubber gasket onto the

body of the K3MA-J.

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-J.

■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.

■Wiring

•Use the following M3 crimp terminals.

■Unit Labels (Provided)

•The unit labels are not attached to the K3MA-J. Select the desired

labels from the provided sheet.

Note: For scales and gauges, use the unit labels that are specified by

the relevant laws or regulations.

Flowrate sensorDisplaying/outputting

liquid level

Monitoring interior

tank pressure

E8AA Pressure Sensor

4 to 20 mA

K3MA-J

Tank Discharge valve

Pump

E4PA Ultra-

sonic Dis-

placement

Sensor

4 to 20 mA

or 0 to 10 V

K3MA-J

Pump

K3MA-J

4 to 20 mA

Flowrate Sensor

m/min

• Monitoring gas pressure

• Inspection instruments in food or phar-

maceutical plants

• Monitoring liquid level in cleaning tanks • Monitoring sendout flowrate

• Water processing devices, etc.

• Water tanks, devices using chemicals,

etc.

5.8 mm max.

10 Process Meter K3MA-J

Precautions

WARNING

Do not touch any of the terminals while the power is being sup-

plied. 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 re-

sult 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.

!Caution

Perform correct settings for the product according to the control

application. Failure to do so may cause unexpected operation, re-

sulting in damage to the product or injury.

!Caution

Take safety measures, such as installing a separate monitoring

system, to ensure safety even if the product fails. Product failure

may prevent comparative outputs from being generated, resulting

in serious accidents.

Observe the following precautions to ensure safety.

1. Maintain the power supply voltage within the range specified in

the specifications.

2. Maintain the load within the ratings specified in the specifications.

3. Check each terminal for correct number and polarity before con-

necting it. Incorrect or reverse connections may damage or burn

out internal components in the product.

4. Tighten the terminal screws securely. The recommended tighten-

ing torque is 0.43 to 0.58 N⋅m. Loose screws may cause fire or

malfunction.

5. Do not connect anything to unused terminals.

6. Provide a switch or circuit breaker so that operators can easily

turn OFF the power supply when necessary. Also provide appro-

priate indications of such devices.

7. Do not attempt to disassemble, repair, or modify the product.

8. Do not use the product where flammable or combustible gases

are present.

Application

General Precautions

1. Do not use the product in the following locations:

• Locations subject to direct radiant heat from heating equip-

ment.

• Locations subject to exposure to water, oil, or chemicals.

• Locations subject to direct sunlight.

• Locations subject to dust or corrosive gases (particularly sul-

furic gas or ammonia gas).

• Locations subject to severe changes in temperature.

• Locations subject to icing or condensation.

• Locations subject to shock or vibration.

2. Do not block heat dissipation around the product, i.e., provide suf-

ficient space for heat dissipation.

3. Ensure that the rated voltage is reached within two seconds after

the power is turned ON.

4. Conduct aging for 15 minutes min. after power is turned ON for

correct measurement.

5. Do not touch the slit sections or terminals while the power is

being supplied to prevent the product from being affected by static

electricity.

6. Do not lay heavy objects on the product during use or storage.

Doing so may deform or deteriorate the product.

7. Do not use paint thinner for cleaning. Use commercially available

alcohol.

Mounting

•Mount the product to a panel that is 1 to 8 mm thick.

•Install the product in a horizontal position.

•Use crimp terminals that match screw sizes.

Noise Prevention

•Install the product as far as possible from devices that generate

strong, high-frequency fields (such as high-frequency welders or

sewing machines) or surges.

•Install surge absorbers or noise filters on nearby devices that gen-

erate noise (particularly, motors, transformers, solenoids, magnet

coils, and other devices that have a high inductance component).

•To prevent inductive noise, separate the terminal block wiring for

the product from high-voltage or high-current power lines. Do not

route the wiring for the product in parallel with or tie it in a bundle

with power lines.

Take the following countermeasures against inductive noise in input

lines.

Analog Signal Inputs

•When using a noise filter for the power supply, check for the voltage

and current and install it as close as possible to the Process Meter.

•Do not install the product near radios, television sets, or wireless

devices. Doing so may cause reception interference.

Increasing Service Life

•Do not use the product in locations where the temperature or

humidity exceeds the ratings or where condensation may occur.

When installing the product in a panel, be sure that the temperature

around the product (not the temperature around the panel) does

not exceed the ratings. The product service life depends on the

ambient temperature. The higher the ambient temperature, the

shorter the service life. To extend the product service life, lower the

temperature inside the Process Meter.

•Use and store the product within the temperature and humidity

ranges given in the specifications. When gang-mounting Process

Meters or arranging them vertically, heat generated by the Process

Meters will cause the internal temperature to rise, reducing the ser-

vice life. In such cases, consider forced cooling methods, such as

using a fan to circulate air around the Process Meters. Do not, how-

ever, allow only the terminals to be cooled. Doing so will increase

measurement error.

•The life of the output relays is greatly affected by the switching

capacity and switching conditions. Use these relays within their

rated load and electrical life. The contacts may fuse or burn if they

are used past their electrical life.

−

Line filter

Power

supply

input Process

Meter Signal

input Process

Meter

Power

supply

input

Surge absorber

−

Signal

input

2-conductor shielded cable

Process

Meter

Process Meter K3MA-J 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.

Note: The move-to-protect-level time can be set in the advanced-function setting level.

Level name Function Measurement

Protect Setting lockouts. Continue

Operation Displaying current values, setting/clearing forced-zero function, and

setting OUT 1/2 values. Continue

Initial setting Making initial settings of input type, scaling, output operating action,

and other parameters. Stopped

Advanced-function setting Setting average processing, display color settings, and other ad-

vanced-function parameters. Stopped

-1234.5

Power ON

Operation level

Protect level

Initial setting level

Advanced-function

setting level

Time set

by user

(See note.)

1 s min.

1 s min. Flashing stops if key

is released.

Continue to press the key for 2 s min.

1 s min. Password "−0169"

Indicates change of level.

12 Process Meter K3MA-J

■Parameters

−

For models with the

comparative output

function MODE

MODE

Set one of these.

Current value

OUT1 value

OUT1

upper-limit

value

OUT1

lower-limit

value

OUT2

upper-limit

value

OUT2

lower-limit

value

OUT2 value

Note: 1. Some parameters are not displayed for certain models.

2. The K3MA-J 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

Operation level

Process Meter K3MA-J 13

−

// //

−−

−

−−

///

−−

Press Level

Key for

more than 3 s.

Press Level

Key for

more than 1 s.

Initial setting level

Input type

MODE

OUT2

type

Move to

advanced-

function

setting level

OUT1

type

Decimal

point

position

Scaling

display

value 2

Scaling

input value 2

Scaling

display

value 1

Scaling

input value 1

Press Level Key for more than 1 s.

Advanced-function

setting level

Enter

password

"−0169"

Parameter

initialization

Average

processing

OUT1

hysteresis

OUT2

hysteresis

Models with

the compar-

ative

output

function

MODE

Zero-limit

value

Display

color

change

Display

auto-return

time

Move-to-

protect-

level time

Unit: times

Zero-limit

Green (red)

Green

Red (green)

Red

Unit: s

Upper Limit

Lower Limit

Upper/Lower

Limits

Upper Limit

Lower Limit

Upper/Lower

Limits

When zero-

limit is ON

14 Process Meter K3MA-J

Operation/Adjustment Lockouts

Restricts key operations for operation level and adjustment level.

•Initial setting is 0.

•This cannot be displayed on models not equipped with the compar-

ative output function.

Setting Level Lockout

Restricts shifting to initial setting level or advanced-function setting

level.

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.

However, all protect level parameters can still be changed.

Forced-zero Lockout

Restricts the setting or release of a forced-zero by front-panel key

operation.

■Initial Settings

/ /

Press Level Key + Mode Key for more than 1 s.

Operation level Protect level

Press Level Key + Mode Key

for more than preset time.

MODE

Operation/adjustment

lockouts

Setting level lockout

Setting change lockout

Forced-zero shift

lockout

Parameter Setting Operation level

Current value display Set value display

oapt 0Allowed Allowed

1Allowed Allowed

2Allowed Prohibited

Parameter Setting Shift to initial

setting level Shift to advanced-

function setting level

icpt 0 Allowed Allowed

1Allowed Prohibited

2Prohibited Prohibited

Parameter Setting Setting change by key

operation

wtpt off Allowed

on Prohibited

Parameter Setting Setting/release of forced-zero

by key operation

=rpt off Allowed

on Prohibited

If required, shift to the advanced-function setting level to set

the number of measurements for averaging, hysteresis

values, auto-zero limit value, display color change, display

auto-return time, or move-to-protect-level time.

Press the Level Key for less than 1 s min.to return to the

operation level.

Specify set value of OUT 1 and 2.

Select the input type.

Set the scaling values and specify output operating action as

required.

Press the Level Key for 3 s min.to move to the initial setting

level.

Power ON

Measurement starts.

Process Meter K3MA-J 15

■Setting Example

Initial Settings

The settings for the following example are shown here.

Example: Tank pressure display

Here, the pressure inside the tank is to be displayed in units of 0.1

kPa.

•Pressure Sensor: E8AA-M10

Measuring range: 0 to 980 kPa, output 4 to 20 mA

1. Set the K3MA-J input type to the 4 to 20 mA input range.

Parameter: in-t (input type), Setting value: 4-20

2. Set the display values for the corresponding input values.

Set the scaling as shown below for the following correspondence:

input 4 mA-->display 0.0, input 20 mA-->display 980.0

Parameter Setting value

inp.1 (scaling input value 1) 4.00

dsp.1 (scaling display value 1) 00000

inp.2 (scaling input value 2) 20.00

dsp.2 (scaling display value 2) 09800

dp (decimal point position) %%%%.%

Note: The decimal point position here refers to the position in the

number after scaling. When setting the scaling display value, it

is necessary to consider the number of digits to be displayed

past the decimal point.

■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 coun-

termeasures.

0 to 980 kPa 4 to 20 mA

E8AA-M10

Pressure SensorK3MA-J-A2 24VAC/VDC

Max

Min

MAX/MIN LEVEL MODE SHIFT UP

()()

()

Display value

DISPLAY 2

DISPLAY 1

INPUT 1 INPUT 2

Input value

Level

display Main indicator Error contents Countermeasures

Not lit e111 RAM memory error Repair is necessary.

Consult your OMRON sales representative.

5e111 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.

If the error cannot be recovered, repair is necessary. Con-

sult your OMRON sales representative.

Not lit Flashes s.err You will see this indication when turning ON the

product the first time after purchase. This is be-

cause the input signal value is 0 mA at that time

even though the range is factory set to 4 to 20 mA.

At the initial setting level, set the input type and other pa-

rameters according to your application.

Input error Promptly change the input voltage/current to a value that

falls within the measurement range.

If the error cannot be recovered, repair is necessary. Con-

sult your OMRON sales representative.

Not lit Flashes 99999 The scaling display value exceeds 99999. Promptly change the input to a value that falls within the

specified range.

The scaling value may be inappropriate. Review the scal-

ing value at the initial setting level.

Not lit Flashes The scaling display value is lower than −19999. Promptly change the input to a value that falls within the

specified range.

The scaling value may be inappropriate. Review the scal-

ing value at the initial setting level.

19999

In the interest of product improvement, specifications are subject to change without notice.

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.

To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.

Cat. No. N108-E1-04A

OMRON Corporation

Industrial Automation Company

Industrial Devices and Components Division H.Q.

Measuring Components Department

Shiokoji Horikawa, Shimogyo-ku,

Kyoto, 600-8530 Japan

Tel: (81)75-344-7080/Fax: (81)75-344-7189 Printed in Japan

0903-0.4M (1001) (B)

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 DIS-

CLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.

■LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS, OR COMMER-

CIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLI-

GENCE, 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 custom-

er’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.