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Technical Specifications
| Type | Remote type Integrated type | |
| Measuring variable | Level / Distance | |
| Power supply | (100～240)VAC,5W Max,50/60Hz; (18～28)VDC | |
| Measuring range | ( 0~5 ) m / ( 0~10 ) m / ( 0~15 ) m | |
| Accuracy | ±0.3%FS / ±0.5%FS | |
| Blocking distance | ≤0.3m (5m) | |
| ≤0.35m (10m) | ||
| ≤0.5m (15m) | ||
| Resolution | 1mm or 0.1%FS (maximum) | |
| Display | Monochrome LCD with resolution of 128 * 64 | |
| Current output | Isolated (4 ~ 20)mA , the maximum load is 500Ω, and the output accuracy is 0.2%FS | |
| Communication | Isolated RS485 Modbus-RTU Communication Protocol | |
| Relay output | 2 groups (i.e. AC 250V/ 8A or DC 30V/ 5A) optional, 4 groups optional | |
| Working temperature | Instrument | (-20~+60)ºC |
| Probe | (-20~+80)ºC | |
| Ingress protection | Instrument | IP65 |
| Probe | IP68 | |
| Probe cable | 10m (standard configuration), 30m available | |
| Relative humidity | (10~85)%RH (no condensation) | |
| Language | Chinese/English | |
| Installation method | Wall mounted installation | |
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Applications
The split-type ultrasonic level transmitter is suitable for a wide range of non-contact level and distance measurement applications, including:
Water & Wastewater Treatment
Tanks, channels, pump stations, and reservoirs
Municipal Utilities
Sewage systems, drainage networks, and water supply facilities
Industrial Process Control
Liquid tanks, storage vessels, and process containers
Bulk Material Level Measurement
Silos, bins, and hoppers containing solid materials
Environmental Monitoring
Open channels, water bodies, and environmental level monitoring systems
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Measuring principle
Ultrasonic level measurement is based on the reflection of ultrasonic waves at the interface between media with different densities, such as air and liquid or solid materials.
The ultrasonic probe emits ultrasonic pulses toward the target surface. When the sound waves encounter the surface of the liquid or material, they are reflected back and received by the probe. The instrument calculates the distance by measuring the transmission time of the ultrasonic signal.
Using the known speed of sound in air, the level or distance is calculated accurately.
Measurement parameters:
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BD – Blind distance
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H – Installation height
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F – Measuring range
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D – Distance from probe emitting surface to material surface
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L – Level
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Liquid Level Measurement Method
Liquid Level Measurement
For liquid level measurement, the user sets the installation height and measurement mode through the instrument menu.
The liquid level is calculated as:
Liquid Level = Installation Height − Measured Distance
This method allows flexible adaptation to different installation conditions and tank geometries.
