Intrinsically Safe Ultrasonic Sensors

Designed for Hazardous Locations/Explosive Atmospheres

When continuous operation is critical, Migatron’s intrinsically safe ultrasonic sensors deliver. Designed for use in hazardous locations/explosive atmospheres, these sensors offer non-contact level and distance measurement in hazardous gas or dust environments classified as Zone 0, 1, 2, 20, 21, or 22 for ATEX/IECEx, and Class I, II, or III for C-UL-US when used with approved intrinsic safety barrier(s). Migatron’s Intrinsically Safe Ultrasonic Sensors support equipment operation in some of the world’s toughest environments and are known for unparalleled performance.

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Sensors for Hazardous Areas

Approvals

Our lines of Intrinsically Safe Ultrasonic Sensors carry approvals for many locations and regions. They Include: ANZEx, ATEX, IECEx, & C-UL-US.

Safe, Non-Contact Operation

Ultrasonic technology eliminates contact with volatile substances—reducing corrosion, and maintenance downtime.

For Extreme Industrial Sites

Ideal for exploration platforms, refineries, mining conveyors, and pipeline terminals, our sensors resist temperature swings, dust ingress, and washdown conditions.

Compatible with Safety Barriers

Our ZSB-409A 3-channel zener safety barrier provides “ia” level of protection for all of Migatron’s RPS-409A-IS product lines.

Intrinsically Safe System Architecture

An intrinsically safe ultrasonic sensor is designed to operate in a hazardous location as part of a system that limits electrical energy. The goal is to prevent a spark or thermal effect from having enough energy to ignite an explosive atmosphere.

For Migatron IS sensors, the system typically includes:

Hazardous Area-Intrinsically safe ultrasonic sensor
Safety Barrier-Limits energy entering the hazardous area
Proper Wiring and Grounding-Cable can store energy
Safe Area-Power supply and control system

Benefits of Migatron Intrinsically Safe Sensors

Certifications for Wider Use: Designed for international use in regulated industries with multi-agency approvals.
Accurate Measurement Without Risk: Non-contact ultrasonic measurement without moving parts.
Easy Integration: With multiple analog output options our sensors are designed to integrate into PLCs, SCADA, and control interfaces in safety-rated environments.

Compare Migatron Intrinsically Safe Ultrasonic Sensors

Product	Certifications / Approvals	Sensing Range	Output	Enclosure	Best Fit
RPS-429A-IS	ATEX, IECEx, C-UL-US, UL/cUL versions available depending on model	4–40 in. or 6–80 in.	4–20 mA current loop or 1–5 V analog voltage	PVC	Hazardous area applications requiring current loop or low-voltage analog output
RPS-409A-IS2	ANZEx, ATEX, C-UL-US, IECEx	4–216 in. depending on model	Analog voltage	PVC	International hazardous gas or dust environments requiring Zone-rated approvals
RPS-409A-IS3	UL/cUL	4–216 in. depending on model	0–10 VDC analog voltage	PVC	North American Class I, II, or III hazardous locations
ZSB-409A	ATEX, IECEx, UL/cUL	n/a	3-channel zener diode safety barrier	DIN rail mount	Intrinsic safety barrier for compatible Migatron IS sensors

Trusted in Oil & Gas and Mining

Designed for safe operation, Migatron’s intrinsically safe ultrasonic sensors are trusted by engineers and OEMs working in hazardous areas -above ground, underground, and offshore.