Key Specifications

Measurement Principle 

Ultrasonic, time-of-flight

Measuring Range 

26 ft (8 m) for Rosemount 3101
36 ft (11 m) for Rosemount 3102 and 3105

Instrument Accuracy 

Model 3101: ± 0.2 in. (5 mm) for <3.3 ft (1 m),
± 0.5% of measured distance for >3.3 ft (1 m)
Models 3102 and 3105: ± 0.1 in. (2.5 mm) <3.3 ft (1 m),
±0.25% of measured distance for >3.3 ft (1 m)

Level Resolution

Better than 1/16 in. (1 mm)

Blanking Distance 

12 in. (0.3 m)

Output 

4-20mA for 3101
4-20mA with superimposed digital HART® communication for 3102 and 3105

Temperature/Pressure Rating 

Refer to the Product Data Sheet (PDF @ 400KB)

Hazardous Location Approvals (for 3105 only) 

Intrinsic Safety (ATEX, CSA, IECEx, FM)

Display 

Standard 4 ⁄ 5 digit display for configuration purposes.

Output Variables 

Level, Distance for 3101
Level, Distance, Volume, Open Channel Flow for 3102 and 3105

Enclosure 

Polyurethane-covered die-cast Aluminum housing.

Ingress Protection 

NEMA 4X, IP66

Configuration Tools 

AMS, 475 Field Communicator, Rosemount 3490 Series Universal Controller or any other DD- or EDDL-compatible host.