KE
KEYENCE CORPORATION FR-LW20
FR series (Radar Level Sensor) - FR-LW20
Категории:
Технические характеристики
| Type | 2-wire standard model |
|---|---|
| Measuring range | Up to 20 m 65.6' |
| Display range | Up to 25 m 82.0' |
| Measurable dielectric constant of medium | 2 or more |
| Precision | Up to 0.1 m 0.3' : ±10 mm 0.39" ; 0.1 to 10 m 0.3' to 32.8' : ±1 mm 0.04" ; 10 to 20 m 32.8' to 65.6' : ±2 mm 0.08" |
| Время отклика | 1 s, 4 s (default value), 10 s, 25 s |
| Tank pressure | -0.1 to +1 MPa (-0.1 to +0.1 MPa below -20°C -4°F ) |
| Материал | Lens: PTFE; Internal seal: FKM; Fastener: SUS304 |
| Материал | PPS PC PA |
| Connection diameter | G1-1/2 (40A) |
| Output (No. of control outputs) | 1 |
| Output (Control output/auxiliary output) | Transistor output (NPN open collector) Common independent type 35 VDC or less, 50 mA max. Residual voltage of 4.0 V or less (50 mA or less) N.O./N.C. switching |
| Output (Analog output) | 4 to 20 mA (Response time: 3 s after internal value is confirmed [90% response]) |
| Network compatibility | HART |
| Analog output accuracy (Resolution) | 1 mm 0.04" |
| Analog output accuracy (Zero accuracy) | ±0.1 mA (zero point = 4 mA) |
| Analog output accuracy (F.S. accuracy) | ±0.2 mA (full scale = 20 mA) |
| Напряжение питания | 18.3 to 35 VDC. |
| Power supply (Power consumption) | 752.5 mW or less (including analog output; excluding load current) |
| Рабочая температура | -30 to +60°C -22 to 140°F (no freezing) |
| Environmental resistance (Temperature of coupling used) | -30 to +85°C -22 to 185°F (no freezing) |
| Environmental resistance (Vibration resistance) | 10 to 500 Hz; Power spectral density: 0.816 G 2 X, Y and Z directions |
| Environmental resistance (Shock resistance) | 100 m/s 2 (10 G), 16 ms pulses, 1000 times each in X, Y and Z directions |
| Степень защиты (IP) | IP67 (IEC60529), Enclosure Type 4X (NEMA250) |
| Protection circuit | Reverse power connection protection, power supply surge protection, output short-circuit protection, output surge protection |
| Масса | Approx. 920 g 32.45 oz |