K3MA-F-A2 AC/DC24

Frequency/Rate Meter

Image

Frequency/Rate Meter, Rotary pulse input, Comparative output: 2 relay contact outputs (SPST-NO), 24 VAC/VDC

Power supply voltage	24 VDC 24 VAC 50/60 Hz
Input type	Rotary pulse (No-voltage contact/NPN/PNP/Voltage pulse)
Digits	5 digit (-19999 to 99999)

Item list of K3MA-F

Ratings/Specifications
Dimensions
Connection diagram
Internal connection

Ratings/Specifications

As of July 25, 2024


Power supply voltage		24 VDC 24 VAC 50/60 Hz
Allowable power supply voltage range		85 to 110% of the power supply voltage
Power consumption		4.5 W max. (at 24 VDC)/4.5 VA max. (at 24 VAC)
External power supply		12 VDC ±10% 0 to 40 mA
Input type		Rotary pulse (No-voltage contact/NPN/PNP/Voltage pulse)
Output type		Judgment output: Contact Comparative output: OUT1, OUT2
Pulse measurement input	No-voltage contact	30 Hz max. ON/OFF pulse width of 15 ms min.
	Voltage pulse	5 kHz max. ON/OFF pulse width of 90 µs min.
	Voltage level	ON voltage: 4.5 to 30 V, OFF voltage: 0 to 2 V, input impedance: 10 kΩ
	Open collector	5 kHz max. ON/OFF pulse width of 90 µs min.
	Measurement range	30 Hz: 0.05 to 30.00 Hz 5 kHz: 0.05 to 5000 Hz
	Accuracy	±0.1% FS ±1 digit max. (23±5 ℃)
Judgment output	Contact output	2 output (SPST-NO) Rated load: Resistive load: 250 VAC 5 A (cosφ=1)/5 A at 30 VDC, Inductive load: 250 VAC 1 A (cosφ=0.4)/30 VDC 1 A (L/R＝7 ms) Minimum applicable load: 10 mA at 5 VDC (failure level: P Reference value) Life expectancy: 100,000 operations min. (Electrical)/5,000,000 operations min. (Mechanical)
Display	Display method	Negative LCD (backlit LED) 7-segment digital display
	Digits	5 digit (-19999 to 99999)
	Character height	14.2 mm (green/red)
Comparative output response time		750 ms max.
Insulation resistance		Between the entire external terminal and case: 20 MΩ min. (at 500 VDC) Between inputs, outputs, and power supply: 20 MΩ min. (at 500 VDC)
Dielectric strength		Between the entire external terminal and case: 2,000 VAC 1 min
Noise immunity		±480 V at power supply terminals in normal mode ±1,500 V at power supply terminals in common mode (waveform with 1-ns rising edge and pulse width of 1 µs/100 ns)
Vibration resistance		Malfunction: 10 to 55 Hz, Single amplitude 0.35 mm, 10 sweeps of 5 min each in X, Y, and Z directions
Shock resistance		Malfunction: 100 m/s², 3 times each in 3 axes 6 directions
Degree of protection		Front: NEMA TYPE 4X for indoor use (equivalent to IP66) Case rear: IP20 Terminals: IP00 + finger protection (VDE0106/100) with terminal Cover
Memory protection		Non-volatile memory (Number of rewrites: 100,000)
Ambient temperature		Operating: -10 to 55 ℃ (with no freezing or condensation) Storage: -25 to 65 ℃ (with no freezing or condensation)
Ambient humidity		Operating: 25 to 85 % (with no condensation)
Accessories		Waterproof packing, Terminal Cover, Unit label
Weight		Approx. 220 g