OMRON K3MA-J Technical data
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 func-
tions.
■ Easy confirmation of max/min display.
■ Short 8 0-mm depth (me asured from e dge 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 Reco gnitio n Pr ogram of UL
with CE marking.
K3MA-J Process Meter
CUS
Ordering Information
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
Model Number Legend:
K3MA-J-@
1 2 3
1. Input T y pe
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
1
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)
Insulation resistance 20 M
Dielectric withstand voltage 2,000 VAC for 1 min between external terminal and case.
Noise immunity
Vibration resistance
Shock resistance
Ambient temperature Operating:
Ambient humidity Operating: 25% to 85% (with no condensation)
Approved safety standards UL3121, conforms to EN61010-1 (Pollution degree 2/overvoltage category II)
EMC (EMI) EN61326+A1 Industry
Weight Approx. 200 g
6 VA max. 4.5 VA max. (24 VAC)
W
min. (at 500 VDC) between external terminal and case.
Insulation provided between inputs, outputs, and power supply.
Insulation provided between inputs, outputs, and power supply.
1,500 V on power supply terminals in normal or
common mode.
1 m
s, or 100 ns for square-wave noise with 1 ns.
2
Vibration: 10 to 55 Hz, Acceleration: 50 m/s
5 min each in X, Y, and Z directions for 10 sweeps.
2
150 m/s
Storage:
Conforms to VDE0106/P100 (finger protection)
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
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)
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 m/s2 for relay contact outputs) 3 times each on 3 axes, 6 directions.
-10
C to 55C (with no condensation or icing)
-25
C to 65C (with no condensation or icing)
4.5 W max. (24 VDC)
480 V on power supply terminals in normal mode.
1,500 V in common mode.
1 m
s, or 100 ns for square-wave noise with 1 ns.
8-kV air discharge
2-kV line to ground (power line)
,
K3MA-JK3MA-J
100% (rated voltage)
Input/Output Ratings
Relay Contact Output
Item Resistive load (cosf = 1) Inductive load (cosf = 0.4, L/R=7 ms)
Rated load 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)
Mechanical life 5,000,000 times min. (at a switching frequency of 1,200 times/min)
Electrical life (at an ambient tempera-
ture of 20
C)
10 mA at 5 VDC
100,000 times min. (at a rated load switching frequency of 10 times/min)
2
K3MA-JK3MA-J
■ Measuring Ranges
Process Voltage/Current Inputs
Input Measuring range Measuring accuracy Input impedance Displayable range
DC voltage 1.000 to 5.000 V
0.000 to 5.000 V
–5.000 to 5.000 V
–10.00 to 10.00 V
DC current 4.00 to 20.00 mA/
■ Characteristics
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
Max. displayed digits 5 digits (
Display 7-segment digital display, Character height: 14.2 mm
Polarity display “
Zero displa y Leading zeros are not displayed.
Scaling function Programmable with front-panel key inputs (range of display:
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)
Output Relays: 2 SPST-NO
Delay in comparative outputs 750 ms max.
Enclosure ratings Front panel: NEMA 4X for indoor use (equivalent to IP66)
Memory protection Non-volatile memory (EEPROM) (possible to rewrite 100,000 times)
0.00 to 20.00 mA
processing is selected.)
-
” is displayed automatically with a negative input signal.
position can be set as desired.
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)
Rear case: IEC standard IP20
Terminals: IEC standard IP00 + finger protection (VDE0106/100)
0.1% FS 1 digit max.
(at 23
3
0.1% FS 1 digit max.
(at 23
5
0.1% FS 1 digit max.
(at 23
3
-
19999 to 99999)
C)
C)
C)
W
min. –19999 to 99999
1 M
45
W
-
19999 to 99999). The decimal point
(with scaling function)
3
K3MA-JK3MA-J
Nomenclature
2. Operation indicators
1
Max
Min
2
3. Level indicator
4. MAX/MIN key
SV
Z
T
MAX/MIN LEVEL SHIFTMODE UP
5. Level key
6. Mode key
7. Shift key
Name Functions
1. Main indicator Displays current values, parameters, and set values.
2. Operation indicators
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.
1. Main indicator
8. Up key
Level indicator Level
/
Protect
Not lit Operation
2
%
Initial setting
Advanced-function setting
4
Operation
■ Main Functions
Input Types and Ranges
K3MA-JK3MA-J
Input type (setting parameter) Function Input range
Setting range
(setting parameters)
Input range (
Note: The initial value for the input range is “4 to 20 mA (
(-3
) Selects DC voltage/current sig-
nal input
0 to 20 mA (
4 to 20 mA (
0 to 5 V (
1 to 5 V (
5 V ()
10 V ()
).”
) Displayable from -19999 to
99999 with scaling function.
)
The position of the decimal point
)
can be set as desired.
)
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.)
Parameter Setting value Meaning Parameter Setting value Meaning
(-/
#2/
(-/
#2/
to
to
to
to
Input value for
#2/
Display value for
Input value for
#2/
Display value for
#/
(-/
(-/
Display four digits after decimal point
Display three digits after decimal point
Display two digits after decimal point
Display one digit after decimal point
No decimal point
Display value
DISPLAY 2
()
DISPLAY 1
()
INPUT 2
INPUT 1
()()
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.
Display value
DISPLAY 1
()
DISPLAY 2
()
Input value
Reverse scaling also possible.
INPUT 1
()
INPUT 2
()
Input value
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, whe re the d isplay v alue decreases as
the input value increases, is also possible.
5
Loading...