Digital Tube Display Measuring Ultrasonic Flow Meter PNP / NPN
Switch Output
Introduction
The Ultrasonic sensor uses sound waves to do non-contact and
wear-free detection on target subjects. It can be used to detect
either transparent or colored objects, metal objects or
non-metallic objects, as well as solid,
liquid or powdered substance. Ambient conditions such as
environmental smoke, dust, environment or rain have very small
affect on the detection performance of ultrasonic sensors.
Ultrasonic Ranging Principle
Transmitting ultrasonic transducer emits ultrasonic pulses
propagated to the measured media through communication media,
through reflection and then return to the receiving transducer
through the acoustic
medium, the measured ultrasonic pulse propagates from the
transmitter to the receiver in the acoustic medium of time. Then
according to the speed of sound in the acoustic medium, it can be
considered from the
transducer to the media surface distance. To determine the liquid
level. Therefore, we can calculate the
distance from the probe to the reflecting surface D = C * t / 2
(divided by 2 is because the sound waves from the transmitter to
the receiver is actually a round, D is the distance, C is the speed
of sound, t is the time)
Products Features
High resolution
Short response time
Digital tube display measuring distance
Various springs available: switch, analog, or RS232/485
The Main Technical Index
| Range | 0.1~0.5m,0.15~1m,0.3~3m,0.4~5m,0.5~6m |
| Resolution | 3mm or 0.1%(which is bigger) |
| Response time | < 200ms |
| Display | LED |
| Emission angle | 20° |
| Analog output | 4～20mA/500Ω LOADING |
| Switch output | PNP/NPN(optional) |
| RS232/485 | MODBUS protocol or customized protocol (optional) |
| Power supply | Standard 24VDC (±15%) |
| Ambient temperature | -20～+60℃ |
| Protection Class | IP65 (IP66 is optional) |
| Installation | M56*2 |
| Note: Only one output can be chose among the three kinds of
outputs. |
Ultrasonic Sensor Installation Dimensions
Installation Notes
(1) ultrasonic sensor installation emission surface should be
perpendicular to the object to be tested
(2) the power cord and output don't pick up the signal lines
