21Khz Long Range Ultrasonic Range Transducer for Level Sensor 


Technical parameters:
 
   
      

Items	Technical Parameters		Image
Name	21KHz anti-corrosive transducer C type
Model	PHA-21-30FC-F
Frequency	21KHz±5%
Detection Distance	1.0~25m
Minimum Parallel lmpedance	1100Ω±20%
Capacitance	11000pF±20% @1KHz
Sensitivity	Driving Voltage:560Vpp,Distance:0.6m, Echo Amplitude:270mV
Operating Voltage	Peak Voltage<1500VPP
Operating Temperature	-40~+80ºC
Pressure	≤3Kilos or0.3MPa
Angle	((Beamwidth) Half-power Beam Width @-3dB:13°±2, Sharp Angle:31°±4
Housing Material	PTFE
Usage	Ultrasonic level gauge,Monitoring,Crashproof, Security
Installation Dimension	The lifting thread: M38×1.5,Bottom with thread:M78×2
Protection Level	IP68
Weight	1480g±5%( length:10m)
Wiring Instructions	separated type(four-wire):Red: transducer+,white: transducer-,blue,black:temperature sensor(MF58);separated type(Three-wire):Red: transducer+,blue:temperature sensor+,black:Common Line-;
Admittance Curve		Product Structure Diagram

   
 
  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