Non-Contact Time of Flight
The probe emits a focused ultrasonic pulse and measures the echo return time from the material surface. Nothing is immersed, so there is no wear, no fouling and no contamination of the sensing element.
NON-CONTACT | CONTINUOUS LEVEL MEASUREMENT
Ultrasonic Level Meter T-ULT-300-PR
Non-Contact Continuous Level Measurement for Liquids, Pastes and Small-Particle Solids
Sertel T-ULT-300-PR ultrasonic level meter determines the amount inside tanks and vessels without making contact with the material. The probe emits a focused acoustic pulse that bounces back from the material's surface. The device measures the time it takes for the pulse to return and translates that interval into a continuous level or distance reading. Because the transducer sits above the process and never enters the medium, the instrument stays accurate with corrosive liquids, viscous pastes, slurries, and granular solids. Such materials would normally foul or damage a sensor that needs physical contact.
0-10 m, 0-15 m and 0-20 m range variants
0.3% ranging accuracy at standard conditions
1 mm ranging resolution
4-20 mA analogue and RS-485 Modbus RTU
IP65 enclosure, minus 20 to plus 60 degrees C
Rated for process pressure below 4 atmospheres
Key Features
Engineered for Level You Can Trust
Everything needed for dependable continuous level monitoring across water treatment, chemical process, effluent handling and bulk storage, from a single two-part instrument.
1 mm Resolution
Ranging resolution of 1 mm with 0.3% ranging accuracy of full scale under standard operating conditions, fine enough for batch level control and inventory reconciliation.
Three Range Variants
Order the meter configured for 0-10 m, 0-15 m or 0-20 m so the measuring span matches the vessel instead of being oversized for it.
Dual Output Integration
4-20 mA analogue output for classic loop instrumentation and RS-485 Modbus RTU for digital polling, so the same instrument suits a PLC, a DCS, a SCADA front end or a data acquisition system.
Field Hardened
IP65 ingress protection, an ambient window of minus 20 to plus 60 degrees C and a process pressure rating below 4 atmospheres absolute for sealed vessel duty.
Two-Part Architecture
A wall or panel mounted transmitter with display and keypad, linked to the probe by shielded cable at up to 200 m, keeps configuration and readout at eye level while the probe stays on the vessel.
Applications
Where the T-ULT-300-PR Is Deployed
An ultrasonic level meter earns its place wherever the medium is aggressive, sticky, abrasive or simply too valuable to risk contaminating with an immersed probe. The T-ULT-300-PR is specified across process and utility plants that need a continuous reading rather than a point switch.
Water and Wastewater Treatment
Chemical and Petrochemical Process
Effluent and Sump Monitoring
Food, Beverage and Dairy Storage
Pharmaceutical and Fine Chemicals
Cement, Minerals and Bulk Solids
Power Plant Auxiliary Tanks
Irrigation, Canal and Reservoir Level
Technical Specifications
Complete measurement, electrical, environmental and mechanical data for the T-ULT-300-PR ultrasonic level meter.
Measurement
| Parameter | Specification |
|---|---|
| Model | T-ULT-300-PR |
| Measurement principle | Ultrasonic time of flight, non-contact |
| Measuring range | 0-10 m / 0-15 m / 0-20 m (three variants available) |
| Blind area | 0.35 m minimum dead band below the transducer face |
| Ranging accuracy | 0.3% of full scale at standard conditions |
| Ranging resolution | 1 mm |
| Measured media | Liquids, pastes and small-particle solids |
| Measurement mode | Continuous level or distance |
FAQ
Frequently Asked Questions
Ready to Specify Your Ultrasonic Level Meter?
Send us your vessel dimensions, medium and control system details, and a Sertel engineer will confirm the range variant, probe thread and output configuration, then return a datasheet and price.