21Khz Ultrasonic Level Transducer for Liquid Level Sensors
Product Description
21Khz Ultrasonic Level Transducer for Liquid Level Sensors
Items | Technical Parameters | Image | |
Name | 21KHz ultrasonic transducer C type（split type） |
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Model | PHA-21-30D-F | ||
Frequency | 21KHz±1.5KHz | ||
Detection Distance | 1.0～30m | ||
Minimum Parallel lmpedance | 700Ω±20％ | ||
11000pF±20％ @1KHz | |||
Sensitivity | Load Driving Voltage：560Vpp，Distance：0.6m， Echo Amplitude：1000mV | ||
-40～+80℃ | |||
≤3Kilos or 0.3MPa | |||
| (Beamwidth) half-power angle@-3dB:11°±2， Sharp Angle:27°±4 | ||
Housing Material | It can be used in a weak acid or base environment（POM） | ||
Usage | Ultrasonic level gauge,Monitoring,Crashproof, Security | ||
The lifting thread:M32×1.5，Bottom with thread:G3 | |||
Protection Level | IP68 | ||
Weight | 1860g±5％（ length：10M） | ||
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－； | ||
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.