ENVIROMUX-ULT Ultrasonic Level Sensor

ENVIROMUX-ULT Ultrasonic Level Sensor by NTI

In modern process automation, continuous monitoring of liquid levels in tanks is essential – particularly in compact systems, machinery, skids, or mobile setups. 

The ENVIROMUX‑ULT from NTI provides a state‑of‑the‑art, non‑contact solution: an ultrasonic level transmitter that delivers real‑time data with an update rate of at least one second. It connects via 4–20 mA analog output to NTI monitoring systems such as ENVIROMUX‑2D, ‑5D, or ‑16D, using the ENVIROMUX‑S420MA‑24V sensor converter, which transfers the signal safely over up to 305 meters of CAT cable. 

The sensor is optimized for small tanks up to 1.245 m in height, with a compact dead band of only 51 mm – ideal for non‑foaming, non‑condensing media such as water, wastewater, diesel fuel, heating oil, and chemicals. 

ENVIROMUX‑ULT technology is based on ultrasonic pulses operating precisely and without mechanical wear – no fluid contact, no contamination, no maintenance. The compact design with a 1" NPT or 1"G thread fits into nearly any tank, and the included Fob USB interface tool enables simple PC‑based configuration. 

When combined with the ENVIROMUX‑S420MA‑24V, the 4–20 mA signal is digitally integrated into the NTI monitoring system, where alarms, thresholds, and trend data can be centrally tracked. The optional ENVIROMUX‑FSC fiber converter extends the range to up to 2 km – perfect for large facilities or distributed installations. 

The ENVIROMUX‑ULT is more than a sensor – it’s an essential component in smart process control. CE and cFMus certified, featuring high EMC resilience and robust construction, it is engineered for demanding environments in chemical, food processing, water treatment, and fuel management applications. Combined with temperature sensors (such as ENVIROMUX‑STS‑O) or the ENVIROMUX‑SRN‑BCNL piezo alarm beacon, it forms a smart monitoring and safety network – temperature, level, and alarm in one system. 

Its easy integration, real‑time monitoring, and scalability make it a high‑ROI investment. A food manufacturer uses the sensor in a detergent tank on a production machine: an overflow alarm automatically stopped the feed, preventing waste and contamination. With the ENVIROMUX‑ULT, you ensure process reliability, resource efficiency, and regulatory compliance – around the clock. 

Key Benefits of the ENVIROMUX‑ULT

• Non‑contact measurement: Ultrasonic technology – no wear, no contamination, ideal for chemicals, oil, water applications.
• Real‑time monitoring: Update rate ≥1 second, 4–20 mA output, accurate for small tanks up to 1.245 m.
• NTI integration: Works with ENVIROMUX‑S420MA‑24V for ENVIROMUX‑2D/5D/16D, up to 305 m cable, 2 km via fiber converter.
• Easy configuration: Fob USB tool included, no in‑operation calibration required.
• Industrial certifications: CE, cFMus – ideal for chemical, fuel, and industrial applications.

Real‑World Applications and Use Cases

The ENVIROMUX‑ULT proves its value in real‑life applications – here are examples:

• Chemical dosing systems: Monitors reagent tanks on machines; a plant prevented underdosing – ensuring product consistency.
• Diesel and oil tanks: Leak detection enabled early response; a transport company avoided environmental damage.
• Water treatment: Monitors wastewater tanks; a facility optimized pump cycles – saving 22 % energy.
• Food production: Tank level in cleaning systems; a plant prevented overfilling – ensuring hygiene and safety.
• Mobile skids and tools: Compact integration; a machine builder enabled on‑site process control at construction sites.

Technical Highlights in Detail

Discover the engineering behind the precision:

• Measurement principle: Ultrasonic, non‑contact, 51 mm dead band, measurement range up to 1.245 m.
• Output: 4–20 mA (two‑wire), compatible with ENVIROMUX‑S420MA‑24V.
• Connection: 1" NPT or 1"G thread, CATx up to 305 m, fiber up to 2 km.
• Configuration: Fob USB tool – simple, local, and user‑friendly.
• Certifications: CE, cFMus – globally approved and safety tested.

Compatibility and Summary:

• Universal non‑contact ultrasonic liquid‑level sensor for real‑time tank monitoring
• 1.24 m (49 in.) range/beam width
• No external power supply required – powered via ENVIROMUX main unit
• Compatible with ENVIROMUX‑2D, ENVIROMUX‑5D, and ENVIROMUX‑16D
• Not compatible with E‑MICRO‑TRH(P), E‑MINI‑LXO, and E‑1W(P)
• Requires sensor converter ENVIROMUX‑S420MA‑24V