An ultrasonic level meter is a device used to measure the level of liquids or solids in a container or tank using ultrasonic technology. It operates by emitting high-frequency sound waves and measuring the time it takes for the sound waves to bounce back after hitting the surface of the material being measured.
The device consists of a transducer that emits the sound waves and a receiver that detects the reflected waves. By calculating the time difference between the emission and reception of the waves, the device can determine the distance between the sensor and the material surface, thereby providing an accurate measurement of the level.
Ultrasonic level meters are widely used in various industries, including wastewater treatment plants, chemical processing plants, oil and gas refineries, food and beverage production, and water management systems. They offer non-contact measurement, making them suitable for applications where the measured material may be corrosive, sticky, or at extreme temperatures. Ultrasonic level meters are known for their accuracy, reliability, and ease of installation, making them a popular choice for level measurement in industrial settings.
Ultrasonic level meter Trouble shooting #
| 1.Not working，no display, no sound |
| Probable reason: Power is not connected or “+””-”polarities are connected reverselyToo low voltage resulting no working or too high resulting damage |
| Solutions: ① Check to ensure correct wiring as instructed. ② Use 12-24V DC supply, or contact with distributor |
| 2.No display, sensor has sound |
| Probable reason: Turning off Connected to high voltage, damaging display chip |
| Solutions: ① Press “B” to turn on display; ②contact with distributor. |
| 3.With sound and display, but the values not change with distance |
| Too low input voltage Sensor or power driver damaged |
| Solutions: ①12-24V DC supply ②Contact with distributor |
| 4.With display ,but value is irregular fluctuation |
| Probable reason: Deflective installation improper setting of pulse intensity, leading to great residual vibration or diffraction more than 2 instruments work together, interfering each other too much electromagnetic disturbance in working areaThere are bubbles or debris on liquid |
| Solutions: Adjust the axis of sensor vertical to surface to be measured in general, range of 1-3m, transmit intensity is 2-5try to eliminate interference find out disturbance source and shield eliminate bubbles or debris |
| 5.Big error |
| Probable reason: ①Non vertical installation, leading to multiple reflection ②installed too close to wall, sonic wave reflected midway③ check “BD”④ check temperature display |
| Solutions: ①Adjust installation positions several times.② correctly set “BD” ③adjust temperature (“TE”) to proper value. |
| 6.Abnormal current output |
| Probable reason: ①Too large load resistance ②FS, AL or AH changed. ③ undesired supply rectification and filtering ④ electrify time is not enough |
| Solutions: ①Lower load resistance ②readjust parameter③ replace with DC regulated supply with larger capacity ④electrify ＞15 minutes before work |
| 7.Abnormal RS485 output |
| Probable reason: ①Reverse connecting of A and B ②incorrect parameter of serial ports, its not match with main unit |
| Solutions: ① Change wiring, ②reset parameter, same with main unit |
| 8.Abnormal control output |
| Probable reason: ①Wrong parameter. Setting ②external current-limiting resistor too large ③external current-limiting resistor too small, damaging the level meter |
| Solutions: Reset parameter②decrease current-limiting resistor ③ contact with distributor |
