Rosemount 3100 Series Ultrasonic Level Transmitter

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