Long-Range Industrial Ultrasonic Level Gauge (Up to 60m) | SUL806
The SUL806 is a heavy-duty, long-range integrated ultrasonic level transmitter engineered for demanding industrial liquid and bulk solid applications. Covering ranges from 5 meters up to 60 meters, the SUL806 easily handles challenging media such as viscous liquids, heavy oils, mud, asphalt, grain, and powder silos. Equipped with an HD LCD display, dual control relays, and advanced echo map diagnostics, it provides high-precision non-contact level monitoring for aggressive and complex process environments.
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Measuring Range: 5 m up to 60 m
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Media: Industrial liquids, slurries, asphalt, acid/alkali, bulk solids & powders
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Output: 4–20 mA (2/4-wire) + optional RS485 Modbus & Dual Relays
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Protection: Sensor Head IP68 / Display Enclosure IP65
Description
Heavy-Duty Non-Contact Level Measurement for Harsh Industrial Applications
The SUL806 Series is a microprocessor-controlled, all-in-one ultrasonic level transmitter designed to deliver high reliability where standard liquid level sensors fall short. Operating on advanced non-contact acoustic technology, the sensor emits ultrasonic pulses that reflect off the material surface to calculate exact distance and material level simultaneously.
Unlike standard utility water sensors, the SUL806 is specially calibrated with multi-point transmission circuits and acoustic matching to pierce through harsh environments, heavy agitation, and dust-heavy atmospheres.
Typical Applications
The SUL806 is specifically engineered for long-distance measurements, heavy viscous liquids, and dusty bulk solid environments. Typical application scenarios include:
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Grain Silos, Granaries & Storage Hoppers: Measuring dry bulk solids, grains, seed hoppers, and agricultural storage where non-contact long-range measurement is required.
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Industrial Bulk Solids & Powders: Level monitoring in cement silos, aggregate bins, ore storage, and solid particle hoppers.
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Viscous & Heavy Industrial Liquids: Monitoring challenging media such as asphalt, heavy crude oil, lubricants, mud, and thick mortar.
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Chemical & Corrosive Storage Tanks: Deep chemical storage tanks, acid/alkali reservoirs, and reagent tanks requiring non-contact measurement.
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Deep Open Channels, Canals & Wells: Open-channel flow/level monitoring, water canals, drainage sumps, and deep industrial water wells requiring up to 60-meter depth coverage.
Advanced Diagnostics & Integrated Control
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On-Screen Echo Map Diagnostics: Built-in echo waveform analysis allows operators to inspect signal quality directly on the display, making it simple to identify and isolate false reflections caused by internal tank struts or agitators.
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Built-in Dual Control Relays: Outfitted with up to two high-capacity relays (AC250V/8A or DC30V/5A), allowing the SUL806 to directly trigger high/low alarms or start/stop pumps without requiring external PLC programming.
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3-Speed Gear Adjustment: Switchable response speeds allow customization for fast-filling vessels, dynamic process tanks, or highly turbulent surfaces.
Features
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Extended Range Capability: Standard configurations available from 5 meters up to an impressive 60-meter measuring depth.
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Liquids & Bulk Solids Compatibility: Measures water, wastewater, heavy oil, asphalt, mud, chemical reagents, grain, ore, and solid powders.
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High-Definition Dual Display: Simultaneously displays measured distance and actual liquid/material level in English or Chinese.
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Integrated Alarm & Control: Optional dual relay outputs enable automatic pump control and overfill protection directly from the meter.
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Advanced Signal Processing: Multi-point transmitting circuits and echo filtering technology eliminate false echo interference for maximum data accuracy.
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Versatile Power Options: Available in standard 24V DC or high-voltage AC 220V configurations.
Specification
| Parameter | Specification Details |
| Model | SUL806 |
| Measurement Range |
5m, 10m, 15m, 20m, 30m, 40m, 50m, 60m (selectable) |
| Measurement Accuracy |
0.5% – 1.0% FS |
| Resolution |
3mm or 1.0% (whichever is maximum) |
| Display |
High-definition LCD (English / Chinese display options) |
| Power Supply |
Standard DC24V (Optional AC220V ±15%) |
| Analog Output |
2-wire 4–20 mA (500Ω load) / 4-wire 4–20 mA (100Ω load) |
| Digital Communication |
Optional RS485 Modbus-RTU / RS232 |
| Relay Output |
Optional 2 sets (AC250V / 8A or DC30V / 5A) |
| Protection Rating |
Display Enclosure: IP65 / Probe: IP68 |
| Operating Temperature |
Display: -20°C to +60°C / Probe: -20°C to +80°C |
| Process Connection |
M48x2, M60x2, M78x2, M108x2, G1-1/2″, G2″ Threads, or Flange |
FAQ
Q: How does the SUL806 differ from the SUL804A water level sensor?
A: While the SUL804A is tailored primarily for standard water and wastewater applications, the SUL806 is a heavy-duty industrial transmitter capable of extended ranges up to 60 meters. The SUL806 is specifically designed to handle harsh industrial media like asphalt, heavy oils, slurries, and bulk dry solids/powders in silos.
Q: Can the SUL806 be used for dry solids like grain or ore?
A: Yes. The SUL806 features high-power acoustic radiation and acoustic matching technology specifically engineered to capture echoes from uneven solid surfaces, granaries, ore hoppers, and cement silos.
Q: Does the SUL806 require an external controller to turn on a pump?
A: No. With the optional dual relay output configuration, you can set high and low switching thresholds directly on the unit to trigger pumps, valves, or external warning horns independently.
Q: How do I troubleshoot false reflections from internal tank obstacles?
A: The SUL806 features an integrated Echo Map diagnostic function on the LCD screen. You can visually identify false reflections caused by tank walls or internal pipes and adjust orientation, installation height, or response gear settings accordingly.
Q: Is the SUL806 a direct replacement for the former UL20 model?
A: Yes, the SUL806 serves as the primary direct replacement for the former UL20 compact/integrated series in our catalog, offering superior echo processing, extended range options, and improved display diagnostics.
