Đồng hồ đo tần số xung K3MA-F-A2 của Omron
– Đầu vào xung: tiếp điểm khô/ NPN/ PNP/ xung điện áp)
– 2 đầu ra tiếp điểm rơle (SPST-NO), 100 – 240 VAC
– Điện áp nguồn: 100 – 240 VAC, 50/60 Hz
– Màn hình hiển thị 5 chữ số (-19999 đến 99999)
Đồng hồ đo tần số xung K3MA-F-A2 của Omron: Dùng để đo tần số/ tốc độ, đầu vào xung
– 2 đầu ra tiếp điểm rơle (SPST-NO), 100 – 240 VAC
– Điện áp nguồn: 100 – 240 VAC, 50/60 Hz
– Loại đầu vào xung: tiếp điểm khô/ NPN/ PNP/ xung điện áp)
– Màn hình hiển thị 5 chữ số (-19999 đến 99999)
Thông số kỹ thuật – Đồng hồ đo tần số xung K3MA-F-A2 của Omron
| 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. |
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| Dielectric strength | 2,000 VAC for 1 min between external terminal and case. Insulation provided between inputs, outputs, and power supply. |
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| 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. |
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| 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) |
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| 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) |
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| 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) |
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| Weight | Approx. 220 g | |
| 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) |
| 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 |
| 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. | |
