OMRON K3MA-F specification

last update: June 18, 2018

Ratings

Model	K3MA-F 100-240VDC, K3MA-F-A2 100-240VAC	K3MA-F 24VAC/VDC, K3MA-F-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)
External power supply	12 VDC (±10%), 0 to 40 mA
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. Insulation provided between inputs, outputs, and power supply.
Noise immunity	±1,500 V on power supply terminals in normal or common 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, 0.35-mm half amplitude 5 min each in X, Y, and Z directions for 10 sweeps.
Shock resistance	150 m/s2 (100 m/s2 for 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)
Approved safety standards	UL61010-1, CSA C22.2 No.61010-1-04, conforms to EN61010-1 (Pollution degree 2/ overvoltage category II) Conforms to VDE0106/P100 (finger protection)
EMC	(EMI) EN61326-1 Industrial electromagnetic environment Emission Enclosure: CISPR 11 Group 1 class A: CISRP16-1/-2 Emission AC Mains: CISPR 11 Group 1 class A: CISRP16-1/-2 (EMS) EN61326-1 Industrial electromagnetic environment 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. 220 g

Characteristics

Input signal	No-voltage contact (30 Hz max., ON/OFF pulse width: 15 ms min.) Voltage pulse (5 kHz max., ON/OFF pulse width: 90 μs min., ON voltage: 4.5 to 30 V/ OFF voltage: 0 to 2 V) Open collector (5 kHz max., ON/OFF pulse width 90 μs min.) Connectable Sensors ON residual voltage: 2.5 V max. OFF leakage current: 0.1 mA max. Load current: Must have switching capacity of 15 mA min. Must be able to dependably switch a load current of 5 mA max.
Measuring accuracy	±0.1%FS ±1 digit (at 23±5°C)
Measurement method	Cycle measurement
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 position 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	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 OFF/2/4/8 operations) Auto-zero time Startup compensation time Setting change lockout Parameter initialization Display auto-return time
Output	Relays: 2 SPST-NO
Delay in comparative outputs	750 ms max.
Degree of protection	Front panel: NEMA TYPE 4X 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) (with terminal cover attached)

Measuring Ranges

No-voltage Contact/Open Collector Inputs

Input	Measuring range	Measuring accuracy	Displayable range
No-voltage contact (30 Hz max.) with ON/OFF pulse width of 15 ms min.	0.05 to 30.00 Hz	±0.1% FS ±1 digit max. (at 23±5°C)	-19999 to 99999 (with scaling function)
Open collector (5 kHz max.) with ON/OFF pulse width of 90 μs min.	0.05 to 5000 Hz

Input/Output Ratings

Relay Contact Output

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 A at 250 VAC, 1 A at 30 VDC
Min. permissible load (P level, reference value)	10 mA at 5 VDC
Mechanical life	5,000,000 times min.
Electrical life	100,000 times min.

last update: June 18, 2018

OMRON K3MA-F lineup

last update: February 13, 2014

List of Models

Input type	Supply voltage	Output	Model
Rotary pulse	100 to 240 VAC	None	K3MA-F 100-240VAC
		2 relay contact outputs (SPST-NO)	K3MA-F-A2 100-240VAC
	24 VAC/VDC	None	K3MA-F 24VAC/VDC
		2 relay contact outputs (SPST-NO)	K3MA-F-A2 24VAC/VDC

Accessories (Order Separately)

Name	Shape	Model
Splash-proof Soft Cover		K32-49SC
Hard Cover		K32-49HC
Watertight Cover		Y92A-49N
Rubber Packing		K32-P1

last update: February 13, 2014

OMRON K3MA-F catalog

• Catalog
• Manual
• CAD

English

Global Edition

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.

*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.

Catalog Name	Catalog Number [size]	Last Update
K3MA-F Data Sheet	- [1751KB]	Jun 18, 201820180618	K3MA-F Data Sheet

OMRON K3MA-F dimension

last update: September 24, 2012

K3MA-F

Mounting Recommended Panel Thickness 1 to 8 mm.
Mount the product horizontally.

The K3MA-F uses M3 terminals.
A terminal cover is provided.

last update: September 24, 2012

• NO. K3MA-F
• TYPE:Digital Panel Indicators Pulse Input Copyright Statement
• DATE:2021-06-10
• Associated products:
  K3HB-C Up/Down Counting Pulse Indicator/Features K3HB-H Temperature Indicator/Features