21Khz Ultrasonic Level Transducer for Liquid Level Sensors
Product Description
21Khz Ultrasonic Level Transducer for Liquid Level Sensors
Items |
Technical Parameters |
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Name |
21KHz ultrasonic transducer C type（split type） |
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Model |
PHA-21-30D-F |
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Frequency |
21KHz±1.5KHz |
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Detection Distance |
1.0～30m |
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Minimum Parallel lmpedance |
700Ω±20％ |
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11000pF±20％ @1KHz |
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Sensitivity |
Load Driving Voltage：560Vpp，Distance：0.6m， Echo Amplitude：1000mV |
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-40～+80℃ |
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≤3Kilos or 0.3MPa |
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(Beamwidth) half-power angle@-3dB:11°±2， Sharp Angle:27°±4 |
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Housing Material |
It can be used in a weak acid or base environment（POM） |
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Usage |
Ultrasonic level gauge,Monitoring,Crashproof, Security |
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The lifting thread:M32×1.5，Bottom with thread:G3 |
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Protection Level |
IP68 |
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Weight |
1860g±5％（ length：10M） |
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Wiring Instructions |
separated type（four-wire）：Red: transducer+、yellow： transducer-、blue，black:temperature sensor（MF58）；
separated type（Three-wire）：Red: transducer+、blue:temperature sensor+、black： Common Line－； |
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Admittance Curve |
Product Structure Diagram |
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Block diagram of ultrasonic distance transducer :
Schematic Diagram of Temperature Sensor:
Split type Cable instruction:
Standard wire is 10M, signal will attenuate 6dB for each 50M increasing of wire.
1. Three core wiring instructions:
Red: transducer +
Blue: temperature sensor +
Black: public -
Four core wiring instructions:
Red: transducer +
Yellow: transducer -
Blue, black: temperature sensor +
Liquid level sensors Application:
A wide range of level sensor measurement systems are made available for addressing the various parameters such as a wide range of applications, high-accuracy needs, and system installation requirements and practices. Measurement technologies are made available in different versions to address a wide range of measurement needs, or to address a specific application.