超声波热能表流量传感器NU1M21TR-1的详细信息 CHARACTERISTICS
Part number NU1ME21TR-1
Construction High-frequency
Using method Dual use
Center frequency 1.0MHz±5%
Bandwidth 0.2MHz
Echo Sensitivity
0dB = 3Vp-p, 8 Bursts, 8 cm -30dB min
Min. Parallel Resistance 130Ω±30%
Capacitance 1200Pf±20%
Max. Input Voltage (Pulse) 500Vp-p
Directivity(-3dB) 7°±2°
Distance of Detection 0.1~5M
Pressure Resistance 1.5MPa
Material PPS
Operating temperature 0°C~ 95°C
y All specification taken typical at 25°C