Products Description
Ultrasonic mud water interface measurement is carried out by an ultrasonic sensor installed in water, which emits a beam of ultrasonic pulse to the underwater mud surface. This pulse signal is reflected back when it encounters the mud surface and can be received by the sensor again; The time from ultrasonic emission to re reception is proportional to the distance from the sensor to the surface of the measured object; The instrument detects the time and calculates the distance (i.e. spatial distance) between the surface of the object being measured and the sensor based on the current temperature (measured by the sensor) and the speed of sound underwater, and further converts it to the liquid level value. The underwater distance W on the liquid level surface is directly proportional to the travel time T of the sound wave: W=V × T/2 (where V is the velocity of the sound wave in water). The user sets the height H from the probe to the bottom of the pool, and the instrument automatically converts the pulse travel time T into the corresponding spatial distance value W, and then calculates the difference between H and W to obtain the measured value L.
Technical Parameters
| Measurement range | Mud level: 0.2-12m; | Installation hole size | 138 × 138mm; |
| Temperature | 0-50.0 ℃; | Protection level | IP65; |
| Temperature compensation | automatic or manual compensation; | Instrument weight | 0.8kg; |
| Resolution | Mud level: 0.01m; | Instrument working environment | Environmental temperature: -10~60 ℃; Relative humidity: not more than 90%; There is no strong magnetic field interference around except for the Earth's magnetic field. |
| Temperature | 0.1 ℃; | Shell material | 316 stainless steel; |
| Basic error | Mud level ± 1% F.S; Temperature ± 0.5 ℃; | Connecting cable | 4-core waterproof cable; |
| Flow rate requirement | ≤ 3m/S; | Installation method | Immersion type; |
| 2-way current output | 0/4-20mA (load resistance ＜ 750 Ω); | Process connection | NPT3/4; |
| Communication output | RS485 MODBUS RTU; | External dimensions | Φ 65 × 85mm; |
| Three sets of relay control contacts | 3A 240VAC, 3A 28VDC or 120VAC; | Medium pressure | ≤ 0.3bar; |
| Power supply (optional) | 85~265VAC ± 10%, 50 ± 1Hz, power ≤ 3W; 9-36VDC, power ≤ 3W; | Signal cable | standard configuration of 10 meters; |
| Instrument external dimensions | 144 x 144 x 118mm; | Protection level | IP68; |
| (Instrument installation methods | panel mounted, wall mounted, and pipeline mounted; | Working temperature | 0-50 ℃. |
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