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K3MA-J
Highly Visible LCD Display with 2-color (Red and Green) LEDs
Data Sheet (447KB)
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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 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, Acceleration: 50 m/s2 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) | |
| 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 | |
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 processing 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 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 | 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) |
Measuring Ranges
Process Voltage/Current Inputs
| 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 MΩ min. | -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/ | ±0.1% FS ±1 digit max. (at 23±3°C) | 45 Ω | |
| 0.00 to 20.00 mA |
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 | 1.5 A at 250 VAC, 1.5 A at 30 VDC |
| Max. contact voltage | 250 VAC, 150 VDC | |
| 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) | |
Caution: In the interenst of product improvement, specifications are subject to change without notice.
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