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Rosemount 3100 Series Ultrasonic Level Sensors

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

Documentation:

The Rosemount 3100 Series Ultrasonic Level Transmitter is the reliable and cost-effective, non-contacting measurement solution from Emerson. Time proven ultrasonic technology with advanced software and state-of-the-art electronics delivers high reliability in a wide variety of applications.

The 3101 is the entry level model for simple level measurement. Choose the 3102 for local control functionality with 2 integral signal relays. For hazardous area applications, the 3105 is certified intrinsically safe.

Continuous non-contacting measurement with no moving parts
Standard Integral LCD and push buttons for simple setup and on-site programming
2 Integral signal relays for local control for (3102 only)
Aluminum housing and corrosion resistant PVDF wetted material
Volume or open channel flow calculations with pre-programmed library
Easy plant integration with 4-20mA ⁄ HART® output and PlantWeb support
Automatic temperature compensation with integral or optional remote temperature sensor
2-wire dc loop-powered
Wide operating range to 36 ft. (11 m)

Features & Benefits:

The Rosemount Series 3100 Ultrasonic Level Transmitter is a cost-effective measurement solution for a wide range of applications. It has no moving parts, corrosion resistant PVDF wetted material and a non-contacting measuring method. So, it requires almost no maintenance. It is unaffected by liquid dielectric constant, viscosity and density changes. Additionally the 3100 Series offers the following benefits:

Low cost of installation
Low cost of commissioning
Minimal maintenance costs
Process downtime minimized

The transmitters are available with threaded or flanged connections, making them easy to install. Several pre-programmed laws and strapping tables make configuration easy. Configuration can be performed by using the local operator interface or HART® configuration tools such as the 375 Field Communicator or AMS™Suite: Intelligent Device Manager.
The transmitters can be used with the Rosemount 3490 Series of wall and panel mounted control units, providing power and comprehensive control options. The transmitter is available with two integral relays, adding to the local control functionality.
The non-contact sensor is made from an inert material offering superior corrosion resistance and low maintenance requirements.
The integral or remote mounted temperature sensor enables automatic corrections where temperature changes in the tank free space could otherwise result in an inaccurate reading.
The local programming menu is easy to use. The 3100 may be installed using the 2 in. thread or available flange options either directly to the vessel or on a suitable bracket above the liquid surface. Three internal buttons are used to program the transmitter with the tank depth and the range for the 4-20mA output.

A built-in LCD display under the cover is provided to aid setting up.The user navigates through an intuitive menu, entering data as prompted by the transmitter. Intelligent software ensures only data specific to the chosen application is requested, minimizing programming time.

Applications