Explosion Proof Ultrasonic Level Transmitter (110°C Ex Proof) SUL805H
Explosion Proof Ultrasonic Level Transmitter (110°C Ex Proof) SUL805H

Explosion-Proof Ultrasonic Level Transmitter (110°C / Ex-Proof) | SUL805H

The SUL805H is a heavy-duty, flameproof/explosion-proof ultrasonic level transmitter designed for reliable level measurement in hazardous chemical, oil & gas, and industrial environments. Enclosed in a rugged die-cast aluminum terminal head, the SUL805H operates in high-temperature processes up to 110°C and incorporates anti-condensation technology to prevent false echo loss. Featuring a self-luminous OLED display, multi-protocol communication (4–20 mA, HART, RS485 Modbus), and volume/weight conversion, it delivers uncompromised safety and accuracy.

  • Measuring Range: 5 m up to 30 m

  • Enclosure: Die-Cast Aluminum (Flameproof / Explosion-Proof Ex)

  • Working Temperature: Up to 110°C

  • Outputs: 4–20 mA, HART (2-wire), RS485 Modbus, Relays / NPN

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Description

Flameproof Level Measurement for Hazardous & Harsh Process Environments

The SUL805H is an explosion-proof integrated ultrasonic level meter engineered specifically for explosive gas atmospheres, chemical storage tanks, and high-temperature industrial processes. Housed in an explosion-proof cast aluminum terminal enclosure, it isolates internal electrical components from external hazardous vapors.

Equipped with a self-luminous OLED display, the unit ensures crystal-clear readability even in dark or restricted hazardous installation zones.

Typical Applications

The SUL805H is engineered for demanding industrial environments where explosive vapors, elevated process temperatures, or aggressive chemical fumes are present. Typical application scenarios include:

  • Chemical Processing & Storage Tanks: Monitoring level in vessels containing solvents, acids, alkalis, alcohols, or volatile organic compounds (VOCs) requiring explosion-proof protection.

  • High-Temperature Process Tanks: Suitable for heated liquid tanks, condensation-prone vessels, and hot water/slurry processing operating up to 110°C.

  • Oil & Gas Infrastructure: Monitoring fuel storage tanks, diesel day tanks, oil-water separators, and lube oil reservoirs in hazardous classification zones.

  • Industrial Wastewater & Sump Monitoring: Hazardous area sumps, chemical drainage pits, and industrial effluent collection wells exposed to explosive methane or chemical vapors.

  • Volumetric & Inventory Measurement: Real-time calculation of material volume or mass in process tanks requiring direct integration via HART or RS485 Modbus.

Engineered for High Temperatures & Heavy Moisture

Standard ultrasonic sensors struggle in hot tanks where evaporation creates fog, condensation, and signal loss. The SUL805H solves this with:

  • 110°C Operating Range: Withstands extreme process temperatures up to 110°C.

  • Anti-Condensation Function: Active acoustic calibration prevents condensation droplets on the transducer face from interfering with measurement accuracy.

  • Chemical-Resistant Probe Options: Transducer faces are available in PVDF, PTFE, PP, and SS304 to endure aggressive chemical fumes.

Smart Diagnostics & System Integration

Beyond simple distance sensing, the SUL805H calculates real-time material level, liquid volume, and mass/weight. With digital filtering, echo identification, and optional HART or RS485 Modbus protocols, it integrates seamlessly into modern DCS, SCADA, or PLC architectures.

Features

  • Explosion-Proof Cast Aluminum Enclosure: Heavy-duty Ex housing designed for hazardous and flammable vapor environments.

  • High-Temperature Performance: Designed to function reliably in process temperatures up to 110°C.

  • Anti-Condensation Technology: Eliminates signal errors caused by surface steam, fog, and water droplet accumulation.

  • Self-Luminous OLED Display: Offers high contrast and wide viewing angles in dark or enclosed industrial spaces.

  • Flexible Communication Protocols: Supports 4–20 mA, 0–10V, RS485 Modbus, 2-wire HART, and 2-relay/3-NPN switch outputs.

  • Volume & Weight Computation: Built-in algorithms compute liquid volume and total weight directly on the device.

 

Specification

Feature / Parameter Technical Specification
Model

SUL805H
Measuring Range Options

5 m, 8 m, 10 m, 12 m, 15 m, 20 m, 25 m, 30 m
Measurement Error

±0.3% F.S. (customizable)
Enclosure Material

Die-Cast Aluminum (Explosion-Proof)
Wetted Material Options

PP, PVDF, PTFE, SS304, ABS
Working Temperature

Up to 110°C
Display

Self-luminous OLED Display (1 mm resolution)
Analog Output

4–20 mA, 0–20 mA, 0–5 V, 0–10 V
Digital / Bus Output

RS485 / Modbus, HART (2-wire system)
Switch Output

3-way NPN or 2-set Relays
Power Supply

DC 12–24V, DC 18–32V, or AC 220V
Process Connection

Thread M60x2, DN80 Flange, or 61mm mount
Special Functions

Anti-condensation, Custom sound speed, Echo identification

 

FAQ

Q: What makes the SUL805H suitable for explosion-proof applications?

A: The SUL805H is built with a heavy-duty die-cast aluminum terminal enclosure that meets flameproof/explosion-proof (Ex) structural requirements, making it suitable for hazardous locations where combustible gases or vapors are present.

Q: Can the SUL805H handle high temperatures and steam in chemical tanks?

A: Yes. Unlike standard sensors limited to 60°C–80°C, the SUL805H supports operating temperatures up to 110°C and includes integrated anti-condensation technology to ensure stable signal reflection in humid or steaming tanks.

Q: Does the SUL805H replace the former UL30 explosion-proof model?

A: Yes, the SUL805H serves as the direct upgraded replacement for the former UL30 Ex-proof model, adding HART protocol capability, an OLED display, higher temperature tolerance, and advanced echo filtering.

Q: Does it support HART protocol for system integration?

A: Yes, the two-wire system configuration of the SUL805H supports HART protocol, allowing full remote calibration and integration into HART-compatible control networks.

Downloads

Explosion-Proof Ultrasonic Level Transmitter (110°C / Ex-Proof) | SUL805H – Datasheet

 

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