Where can the UL40 be used?

It is designed for tanks, open channels, rivers, lakes, and wastewater facilities in industrial and environmental applications.

What is the advantage of the split LED display?

The split display provides clear level readings and allows easy local monitoring at the installation site.

What types of liquids can the UL40 measure?

It can reliably measure water, wastewater, slurries, and other liquids without direct contact.

Does the sensor require regular maintenance?

No – the non-contact ultrasonic technology minimizes wear and reduces maintenance requirements.

How fast does the UL40 respond?

It provides readings in less than 200 ms, ensuring fast updates even with dynamic liquid levels.

Split Ultrasonic Level Meter | Non-Contact Liquid & Tank Level Sensor | SUL807

The SUL807 Split Ultrasonic Level Meter is a versatile, non-contact measurement solution designed for continuous liquid level and material level monitoring in industrial tanks, sumps, and open basins. Featuring a remote IP65 display unit connected to a fully submersible IP68 ultrasonic sensor, the SUL807 isolates sensitive electronics from harsh process environments.

Capable of measuring ranges from 5 meters up to 20 meters (customizable for extended applications), this split-type transmitter solves traditional measurement failures caused by liquid corrosion, mechanical fouling, probe clogging, or aggressive vapors.

Key Highlights:
- Split-Architecture Design: Keeps the LCD display accessible while the IP68 probe works inside demanding sumps or tanks.
- Wide Range Capability: Standard measurement ranges of 5m, 10m, 15m, and 20m (custom ranges available).
- Non-Contact Reliability: Eliminates probe clogging, corrosion, and maintenance issues typical of pressure or float sensors.
- Advanced Echo Filtering: Built-in digital filtering and manual fixed-interference suppression for noisy industrial vessels.
- Multiple Output Options: Standard 4-20mA analog output with dual relay switching for direct pump control.

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Category: Ultrasonic Level Sensors: Reliable Non-Contact Measurement

Description

Remote Continuous Level Transmission for Harsh Industrial Media

Measuring fluid levels in corrosive, dirty, or volatile liquids often leads to premature failure in contact-based sensors. The SUL807 Split Ultrasonic Level Meter overcomes these challenges through non-contact, transit-time acoustic measurement. By separating the sensor probe from the main control terminal, operators can easily monitor live level data at eye level while the rugged IP68 sensor operates in hazardous or hard-to-reach areas.

Echo Recognition & Interference Filtering

Industrial tanks and sumps frequently contain internal structural obstacles, agitators, or turbulent surfaces that disturb ultrasonic signals. The SUL807 integrates advanced digital signal processing, custom sound-speed calibration, and fixed-interference echo recognition. This ensures stable, reliable readings without false spikes triggered by internal pipe runs or tank walls.

Primary Applications

Industrial Storage Tanks: Continuous level monitoring for chemicals, water storage, oils, and industrial additives.
Sumps & Lift Stations: Reliable level control and automatic pump alternation in wastewater pits, storm sumps, and drainage basins.
Open Basins & Reservoirs: Non-contact liquid depth monitoring in municipal treatment plant basins, settling tanks, and buffer vessels.
Bulk Material Silos: Non-contact level tracking for granular solids, pellets, and powder bins.

Features

Split Display & Sensor Layout: Connects the IP68 probe to the IP65 display host via standard 10m cable (extendable up to 100m) for maximum operational safety.
Advanced Digital Signal Processing: Built-in digital filtering, custom sound-speed parameters, and manual echo suppression to eliminate false reflections.
Parameter Backup & Restore: Enables quick system setup, configuration cloning, and parameter restoration for multi-tank deployments.
Integrated Control Relays: Dual channel AC250V/8A or DC30V/5A editable relays for high/low level alarms and direct automated pump sequencing.
Flexible Data Handling Options: Optional RS485/RS232 communication, USB data export, micro-printer compatibility, and wireless data transmission integration.
Non-Intrusive IP68 Probe: High-durability sensor probe designed to withstand corrosive vapors, condensation, and outdoor immersion.

Specification

Parameter	Technical Specification
Model	SUL807 Split Ultrasonic Level Meter
Measurement Principle	Non-contact transit-time ultrasonic sound wave
Standard Measurement Ranges	5m, 10m, 15m, 20m (Custom ranges available)
Accuracy	1% to 3% of full scale
Resolution	5 mm or 0.5% (whichever is larger)
Display Unit	High-contrast backlit LCD display (IP65 enclosure)
Probe Protection Rating	IP68 fully submersible
Analog Output	4–20mA (750 Ohm maximum load)
Relay Outputs	Single channel 2 groups (AC 250V/8A or DC 30V/5A, programmable status)
Power Supply Options	Standard 220VAC (50Hz), optional 24VDC, 12VDC, or battery operation
Cable Length	Standard 10 meters (extendable up to 100 meters)
Operating Temperature	Display: -20°C to +60°C \| Probe: -20°C to +80°C
Communication / Expansion	RS485 / RS232, optional wireless acquisition, USB export, MiniSD logging

FAQ

Q1: Why choose a split-type level meter like the SUL807 instead of an all-in-one unit?

A split-type design allows you to mount the IP68 sensor probe inside deep sumps, aggressive chemical tanks, or high-vibration zones, while placing the IP65 backlit display at eye level up to 100 meters away. This makes routine inspections safe and easy without subjecting the main electronics to harsh fumes or weather.

Q2: How does the SUL807 handle obstacles like tank ladders or agitator blades inside a vessel?

The SUL807 features advanced digital filtering and fixed-interference echo recognition. You can manually set the system to filter out static reflections caused by internal piping, ladders, or structural ribs, ensuring the meter only tracks the true liquid surface level.

Q3: Can the SUL807 directly control automated pumps or trip safety alarms?

Yes. The controller includes editable relay outputs (AC 250V/8A or DC 30V/5A). You can configure high-level overflow alarms, low-level dry-run protection, or automated pump start/stop limits directly through the keypad.

Q4: What is the difference between the SUL807 and open channel flow meters like the SUL815?

The SUL807 is optimized for continuous liquid and material level measurement (monitoring volume or height in tanks and sumps). If you need to calculate volumetric flow rates in Parshall flumes or V-notch weirs using standard hydraulic discharge curves, please view our dedicated SUL815 Open Channel Flow Meter.

Downloads

Split Ultrasonic Level Meter | Non-Contact Liquid & Tank Level Sensor | SUL807 – Datasheet