Thông số kỹ thuật LM3-4AA-3RT-A
| Thông số | Giá trị |
|---|---|
| Series | LM3-AA |
| Size | LM3 : 96(W) X 48(H) X 68(D) mm |
| Power | 100 - 240 V 50/60 Hz |
| Power Consumption | •LM3-3NC: 9 VA or less•LM3-3PC: 9 VA or less•LM3-3PT: 10 VA or less•LM3-3R: 10 VA or less•LM3-3RT: 11 VA or less•LM3-N: 6 VA or less |
| Input signal | AC current / frequency |
| Input range | 5A / 2A500mA / 200mA50mA / 20mA |
| AC measurement method | AVG / RMS selective measurement |
| Input sampling cycle | 50 ms |
| Input sampling method | OVER sampling method using continuous approximation A / D converter |
| Maximum allowable input | F.S. of each input range 110 % |
| Frequency measurement range | 0.2 ~ 9999 Hz (Frequency measurement range depends on the decimal point position) |
| Display | • Negative-LCD• 4 digit 2 rows• PV (White)• SV (Green) |
| Character size | LM3 : 17.6 X 10.6 mm |
| Maximum display | - 9999 ~ 9999 |
| Display degree | • [ 23 ℃ ± 5 ℃ ] - F.S. ± 0.3 % rdg ±3 digit• [ 23 ℃ ± 5 ℃, frequency ] - F.S. ± 0.1 % rdg ± 2 digit• [ 50 ℃ ~ - 10 ℃ ] - F.S. ± 0.5 % rdg ± 3 digit |
| Control output | • Contact output : 3 stage, SPST (1a), 250 V 5 A• Solid state output: 3-stage, NPN or PNP open collector, 12 – 24 V 50mA or less |
| Relay life time | • Electrical (about 100,000 times, 250 V 5 A)• Mechanical (about 5 million times) |
| Optional output | • Transmission output (4-20 mA)• RS-485 output |
| External input | • HOLD/ZERO Optional input• Non-voltage input• Short circuit impedance: 300 Ω or less• Residual voltage: 1 V or less• Impedance when open: 100 kΩ or more |
| Communication | • Communication protocol : Modbus-RTU• Communication method : RS-485 (2-wire half duplex)• Communication speed : 2400 / 4800 / 9600 / 19200 / 38400 bps |
| Insulation Resistance | 100 mΩ or more (500 V Mega standard, between conductive terminal and case) |
| Withstand voltage | 2000 V 60 Hz 1 minute (between conductive terminal and case) |
| Noise | ± 2 kV(Between operation power terminals, Pulse width = 1 us, Square wave noise by noise simulator) |
| Vibration resistance | 10 - 55 Hz, Single amplitude 0.5 mm, 3-axis angular, 2 hours |
| Protection structure | • IP66 (front)• Terminal block protection cover applied |
| Copyright | Haiphongtech.vn |
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