21KHz Explosionproof Ultrasonic Air Transducers for Distance Measurement
Technical parameters:
Block diagram of ultrasonic Distance transducer :
Technical parameters:
| Items | Technical Parameters | Image | |
| Name | 21KHz explosion proof ultrasonic transducer |  | |
| Model | PHA-21-30C-FB | ||
| Frequency | 21KHz±5% | ||
| Detection Distance | 1.0~30m | ||
| Minimum Parallel lmpedance | 530Ω±20% | ||
| Capacitance | 11000pF±20% @1KHz | ||
| Sensitivity | load driving Voltage:520Vpp,Distance:0.6m,Echo Amplitude:400mV | ||
| Operating Voltage | Peak Voltage<1500Vpp | ||
| Operating Temperature | -40~+80ºC | ||
| Pressure | ≤3Kilos or 0.3MPa | ||
| Angle | (Beamwidth)Half-power Beam Width@-3dB:13°±10%, Sharp Angle:31°±10% | ||
| Housing Material | ABS | ||
| usage | Ultrasonic level gauge, ultrasonic anti-collision, ultrasonic rangefinder | ||
| Installation Dimension | Checking product structure diagram below | ||
| Protection Level | IP68 | ||
| Weight | 1300g±5% | ||
| Wiring Instructions | (3PIN,2.54mm terminal) : red positive, white negative, black shield wire; (3PIN,2.0mm terminal) : white and black for temperature sensor wire (MF58); | ||
| Admittance Curve | Product Structure Diagram | ||
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Block diagram of ultrasonic Distance transducer :
Schematic Diagram of Temperature Sensor (model: MF58_502F3470):
Integrated type Cable instruction:
1.Wiring instruction of transducer: interface (3pin, 2.54mm terminal)
Red: transducer +
White: transducer -
Black: shielding
2.Cable Instruction of Temperature Sensor: interface (3pin, 2.0mm terminal)
Red and black are temperature sensor wiring
Split type: standard 10m cable, with each additional 50m of cable, the signal attenuation is 6dB
Three-core wiring instructions:
Red: Transducer +
Blue: temperature sensor +
Black: Public-
Four-core wiring instructions:
Red: Transducer +
Yellow: Transducer-
Blue, black: temperature sensor