Liquid flow ultrasonic transmitter

The AquaTrans AT600 liquid flow ultrasonic transmitter

combines state-of-the-art flow measurement capability with

a low-cost transmitter package that can be installed right

at the process measurement point. It’s designed specifically

for water and wastewater applications in full pipes. The all-

digital AquaTrans AT600 has no moving parts and requires

minimal maintenance. An onboard microprocessor uses

patented correlation transit-time™ technology for long-term,

drift-free operation. Automatic adjustment to changing fluid

properties and dynamically configured operating software

simplify programming.

Transit-time flow measurement

In this method, two transducers serve as both ultrasonic

signal generators and receivers. They are in acoustic

communication with each other, meaning the second

transducer can receive ultrasonic signals transmitted by the

first transducer and vice versa.

In operation, each transducer functions as a transmitter,

generating a specified number of acoustic pulses, and then

as a receiver for an identical number of pulses. The time

interval between transmission and reception of the ultrasonic

signals is measured in both directions. When the liquid in the

pipe is not flowing, the transit-time downstream equals the

transit-time upstream. When the liquid is flowing, the transit-

time downstream is less than the transit-time upstream.

The difference between the downstream and upstream

transit times is proportional to the velocity of the flowing

liquid, and its sign indicates the direction of flow.

Easy four step installation

Step #1: Install straps onto pipe.

Step #2: Put clamp-on fixture on pipe and move straps onto

sides of fixture.

Step #3: Open fixture to set spacing.

Step 4: Set spacing and lock fixture with transducers

onto pipe.

Flow Meter Transducers

Fluid Flow

Transducers ultrasonic signal path

Transit-time flow measurement technique

Clamp-on transducers

Clamp-on transducers offer maximum convenience,

flexibility and a low installation cost compared to traditional

flow metering technologies. With proper installation, clamp-

on transducers provide better than 1% of reading accuracy in

most applications.

Vitality™ software (optional)

The AquaTrans AT600 can communicate with a PC via our

Vitality interface program. Consult the manual for details on

sites, logs, and other operations with a PC.