Accusonic® Technologies, a division of ADS® LLC, designs and manufactures ultrasonic

transit-time � ow measurement systems that are renowned

for their precise accuracy and reliability in di� cult operating

environments. Accusonic � owmeter systems can be

found in hydroelectric plants, thermal power plants, water and wastewater treatment facilities,

sewage collection systems, and other types of water � ow

conveyance pipelines and channels. With over 35 years of experience and over 3000 systems installed worldwide,

Accusonic o� ers a full range of services including installation,

system integration, turbine performance testing services,

and � eld training.

Accusonic Model 7700-7720 Networked Flowmeter System

About AccusonicSYSTEM DESCRIPTION

C A P A B I L I T I E S S U M M A R Y

© 2008 ADS LLC. All Rights Reserved.

28 Patterson Brook Road, West Wareham, MA 02576, USA • Tel. +1- 508-273-9600 • Fax: +1- 508-273-9699 • Email: sales@accusonic.com

SYSTEM SPECIFICATIONS

H A R D W A R EH A R D W A R E

The Accusonic® Model 7700-7720™ Networked Flowmeter System o� ers 7th generation Accusonic ultrasonic transit-time � ow measurement technology for reliable, high-accuracy � ow monitoring in large pipes and open channels. The Model 7700™ Master Control Unit provides integrated � ow monitoring capability with centralized control and enhanced real-time connectivity to multiple pipes and/or channels within a single plant or network of plants. The 7700 allows for � exible con� gurations of � ow measurement networks across pressurized pipes, penstocks, low-head intakes, and open channels.

The networked � owmeter system uses the Model 7720™ Flowmeter to measure � owrates in more than one pipe or channel. The system can be expanded with additional 7720 Flowmeters to simultaneously monitor � owrates in up to 64 separate locations. Measurable pipe/channel sizes range from 8 inch (200 mm) to 500 feet (150 m) in diameter.

The Model 7720 Flowmeter utilizes the multiple parallel-path transit-time technique, an absolute � ow measurement method which is capable of achieving high accuracy under di� cult metering conditions. Flowrate is calculated in the 7720 via full-pro� le integration of the � ow velocity measured at each acoustic path. Measurement accuracies to within + or - 0.5% of true � owrate can be achieved. In addition, the 7700-7720 System can provide � ow measurements in accordance with the ASME PTC 18-2002 test code using up to 18-paths in a single pipe application.

• Continuous Flow Measurement, Recording and Data Display• Multiple Pipe Flowrates and Flow Totalization• User-Selectable Display Screens (Data & Diagnostics Displays)• Easy, Menu-Based System Setup and Operation• Automated Self-Test and Operational Diagnostics• Accusonic HydroFlowTM Software for

enhanced operation.

Model 7700-7720 Features

Power Requirement 90 - 260 VAC, 47 - 63 Hz(DC Power Options Available)

Style Options 7700DT Desktop Computer7700NB Notebook Computer7700TB Ruggedized Notebook Computer

Data display options for above: Flowrate Totalized Flow System Status Calendar / Clock Any Parameter or Variable User-De� nable Screens Velocity Pro� le

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

DS-7700-7720-10-05-08

www.accusonic.com

Model 7700 shown with Ruggedized Notebook Computer and Model 7720 Flowmeter

Model 7700 Notebook Computer with HydroFlowTM Software and Model 7720 Flowmeter

Output OptionsEthernet ConnectivityRS-232 Serial Communication PortFormatted Reports for output to printersEight (8) Isolated 4 - 20 mA Outputs – OptionalEight (8) Pulsed Totalizer / Alarm Relay Contacts – OptionalModbus Interface (RS-232 or RS-485) – Optional

Model 7720 Flowmeter speci� cations available in the Model 7720 data sheet

A Division of ADS LLCADS. An IDEX Fluid & Metering Business.

A Division of ADS LLC

H A R D W A R E

SYSTEM CONFIGURATIONS

Accusonic � owmeters may be con� gured for a wide variety of applications, including � ow measurements in exposed or buried pipes, penstocks, � ow conduits, intake structures, tunnels or open channels. Accusonic has developed specialized transducers to meet virtu-ally any installation requirement, including the follow-ing transducer options.

• Fully Removable and Fixed Window Transducers for Exposed Steel Pipes

• Internal-Mount and Array-Mount Transducers for Concrete Pipes and Conduits

• ‘Cold Tap’ or ‘Hot Tap’ Transducers for Pipes with External Access Only

• Low-Cost Transducers for Low-Head Hydro Intakes

APPLICATIONS

• Hydropower Flow Monitoring - Penstocks and Low- Head Intakes

• Pump and Generate Flow Monitoring for Pumped- Storage Plants

• Precision Flow Measurement for Turbine Effi ciency Testing (meets ASME PTC 18-2002 and IEC 60041 codes)

• Water Supply and Transmission Flow Monitoring

• Water Distribution and Revenue Metering

• Pump and Irrigation Flow Control

• FERC Minimum Flow Compliance Documentation

SYSTEM ADVANTAGES

• Multiple-Pipe Flow Measurements from a Single Console

• Superior Accuracy Over Wide-Ranging Flow Conditions

• Minimal Flowstream Intrusion, No Head Loss

• No Required ‘Flow Profi le’ Calibrations

• Bi-Directional Flow Measurement Capability

• Flexible System Outputs to Meet Engineering Requirements

• Ethernet and Modbus Interfaces for SCADA Applications

BENEFITS

• Improve and Document Hydro Unit Performance

• Ensure Unit Power Output Meets Specifi cations

• Balance Hydro Unit Allocation Dispatch

• Document Water Resource Utilization Compliance

• Improve Power Plant and Unit Effi ciency

Hyrdopower Low-Head Intakes

Multiple Pipe Monitoring with Remote7720 Flowmeters

Model 7657/7658 Internal Mount Transducers

Model 7601/7641 Feedthrough Transducers

Model 7625/7605 Fixed Window Transducers

FLOW

7700

7720

7720

7720

7700

77207720 TRANSDUCER OPTIONS