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Rosemount 3100 Series Ultrasonic Level Transmitter

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  • Ultrasonic measurement principal
  • 26 ft or 36 ft measuring range depending on model
  • 4-20mA output or 4-20mA with HART output available
  • Hazardous location approval models available
  • Ingress protection: NEMA 4X, IP66
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Rosemount 3100 Series Ultrasonic Level Transmitter Introduction

The Rosemount 3100 Series is a liquid level transmitter based on ultrasonic technology that is suitable for many liquid applications.

Ultrasonic pulse signals are transmitted and reflected from the liquid surface. The transmitter ‘listens’ for reflected signals (echoes) and measures the time-delay between transmitting and receiving. The distance to the liquid surface is automatically calculated using the computed time-delay.

The transmitter then calculates the liquid depth (level) and outputs the level as a 4–20 mA signal (and a digital HART® signal on the

Rosemount 3102 and 3105).

The Rosemount 3102 is used for measuring the level only. The Rosemount 3102 and 3105 can calculate distance-to-surface,contents (volume), or open channel flow, and then output the result as a 4–20 mA signal and a digital HART signal.

An integral temperature sensor continuously measures the air temperature around the transmitter. It then computes the speed of sound in air, automatically compensating the calculated distance for temperature effects. The Rosemount 3102 and 3105 have a remote temperature sensor option.

Rosemount 3100 Series Ultrasonic Level Transmitter Feature

  • Non-contacting measurement with no moving parts

  • Integral LCD and buttons as standard for on-site programming

  • Continuous measurement of level

  • Volume or open channel flow calculations for the Rosemount 3102 and Rosemount 3105

  • Two wire loop powered. Rosemount 3102 and 3105 have digital HART®

       communications

  • Two integral signal relays on the Rosemount 3102

  • Easy to install and configure

  • Rugged metal or plastic housing. PVDF wetted material


Rosemount 3100 Series Ultrasonic Level Transmitter Specification 

General

Product

Rosemount™ 3100 Series Ultrasonic Level Transmitters:

■ Rosemount 3101: level measurement

■ Rosemount 3102:

— Level, distance, content (volume), and flow measurement, with two integral signal relays

■ Rosemount 3105:

— Level, distance, content (volume), and flow measurement for hazardous locations

Measurement principle

■ Ultrasonic, time-of-flight

Measuring performance

Measurement range

■ Rosemount 3101:

— Range of 1 to 26 ft. (0,3 to 8 m)

■ Rosemount 3102 and 3105:

— Range of 1 to 36 ft. (0,3 to 11 m)

Level resolution

■ Better than 0.04 in. (1 mm)

Accuracy under reference conditions

■ Rosemount 3101 (1) :

— ± 0.2 in. (5 mm) for < 3.3 ft. (1 m), ± 0.5% of measured distance for > 3.3 ft. (1 m)

■ Rosemount 3102 and 3105 (1) (2) :

— ± 0.1 in. (2,5 mm) < 3.3 ft (1 m), ±0.25% of measured distance for > 3.3 ft. (1 m)

Blanking distance (dead zone)

■ 12 in. (0,3 m)

Update interval

■ Display: 500 ms

■ Current Output: 200 ms


-Manuals

Rosemount 3100 Series Ultrasonic Level Transmitter

-Data sheet

Rosemount 3100 Series Ultrasonic Level Transmitter.pdf


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