SLDL2810 Series SonarScan External Ultrasonic Liquid Level Meter

The SLDL2810 External Ultrasonic Liquid Level Meter is a true non‑contact liquid level measuring instrument. The SLDL2810 External Ultrasonic Liquid Level Meter uses ultrasonic waves propagating through the outer wall of the tank and calculates the liquid level by measuring the time difference between transmission and reflection. With no need to drill holes or contact media, the SLDL2810 External Ultrasonic Liquid Level Meter brings safe, reliable, and convenient level monitoring to various industrial tanks.

Product Introduction of SLDL2810 External Ultrasonic Liquid Level Meter

Solidat Applied Technologies Ltd. is a leading manufacturer and supplier of the SLDL2810 External Ultrasonic Liquid Level Meter in China. We provide high‑quality SLDL2810 External Ultrasonic Liquid Level Meter products with full customization support. Customers are welcome to purchase from stock and request a factory quotation. We offer professional service and competitive pricing for global industrial clients.

The SLDL2810 External Ultrasonic Liquid Level Meter is a non‑contact measuring device that transmits ultrasonic signals through the tank wall without any intrusion into the vessel. It works for spherical tanks, horizontal tanks, vertical tanks, and various shapes and materials. The SLDL2810 External Ultrasonic Liquid Level Meter is easy to install, unaffected by medium characteristics, and requires no tank openings.

Features of SLDL2810 External Ultrasonic Liquid Level Meter

High Measurement Accuracy

• The SLDL2810 External Ultrasonic Liquid Level Meter delivers ±2mm high accuracy for real‑time process control.

• Provides simple and convenient calibration methods.

True Non‑Contact Measurement

•Measuring range up to 30 meters.

• Measurement blind zone as low as 30mm.

• Full‑range real‑time liquid level tracking.

• Anti‑sediment performance: stable measurement even with heavy media precipitation.

Easy Installation & Cost Saving

• Low cost and high cost‑effectiveness.

• Easy installation, debugging, and operation.

• For horizontal tanks, debugging can be eliminated to save cost and time.

Working Principle of SLDL2810 External Ultrasonic Liquid Level Meter

The SLDL2810 External Ultrasonic Liquid Level Meter operates by emitting sonar signals from the external probe. The signal travels through the tank wall, reflects off the liquid surface, and is received by the probe. The system processes the echo with a proprietary algorithm to measure time difference and compute liquid level height.

Formula:

H = r × t − x × α

• H: Measured liquid level height

• t: Total time of sonic wave transmission and reflection

• tg: Transmission time in the tank wall

• v: Sonic wave speed in liquid

• α: Correction coefficient

Application Scope of SLDL2810 External Ultrasonic Liquid Level Meter

Applicable Containers

•Spherical, vertical, horizontal tanks

• Requires 200mm(L) × 200mm(D) × 300mm(H) installation space

• No internal obstacles (baffles, agitators, columns)

• Tank wall thickness ≤100mm at probe mounting area

• No lining or gas jacket at the mounting area

• Hard materials: carbon steel, 304, 316, fiberglass, hard rubber

Applicable Liquids

•Dynamic viscosity < 50mPa·s

• No heavy sedimentation, crystallization, or coagulation

• No large suspended solids or bubbles

• Not an emulsion; preferably single or miscible liquid

• Special configuration required for immiscible liquid interfaces

Probe Operating Temperature

• Normal temp probe: −30°C to +90°C

• High temp probe: +60°C to +200°C

Technical Parameters of SLDL2810 External Ultrasonic Liquid Level Meter

Applications of SLDL2810 External Ultrasonic Liquid Level Meter

The SLDL2810 External Ultrasonic Liquid Level Meter is widely used in:

•Oil & gas, chemical, and petrochemical industries

• Pharmaceutical and food & beverage (hygienic)

• Water treatment and wastewater systems

• High‑pressure, toxic, corrosive liquid storage

• Sealed tanks requiring no drilling or opening