DATASONICS PSA-916 Manuel utilisateur

Datasonics, Inc.

PSA-916 Sonar Altimeter

User’s Manual

Rev. March 1997

Datasonics, Inc.

P.O. Box 8 - 1400 Route 28A

Cataumet, MA 02534

Telephone: 508/563-5511

Fax: 508/563-9312

PROPERTY OF DATASONICS

The information, descriptions, photos and illustrations in this manual are

the property of Datasonics, Inc. These materials may not be reproduced

or disseminated without the prior written consent of Datasonics.

WARRANTY

Datasonics, Inc. warrants each of its products to be free from defects in

material and workmanship for a period of one year from date of delivery

to the original purchaser.

Obligation under this warranty shall belimited to the repair or, at the sole

discretion of Datasonics, replacement of any product returned to our

Cataumet, Massachusetts, facility or to a Datasonics-authorized field

service facility. All products returned shall be shipped to Datasonics

Freight Prepaid, and shall be returned to the customer Freight Collect.

This warranty does not apply in cases where the equipment

malfunctioned as a result of mishandling or improper operation.

LIABILITY

Datasonics assumes no liability for damages, losses or costs incurred

consequentially through operation or malfunction of any Datasonics

product.

TITLE

Title passes to the buyer on deliver to the carrier at Cataumet,

Massachusetts. Risk of damage or loss following such delivery shall be

on the buyer, and Datasonics shall in no way be responsible for safe

arrival of the shipment. Title shall pass to the buyer regardless of any

provision for payment of freight or insurance by Datasonics, and

regardless of the form of the shipping documents. If the shipment is

consigned to Datasonics, it shall be for the purpose of securing the

buyer's obligations under the contract.

CHANGES

Datasonics reserves the right to make changes in design or

specifications at any time without incurring any obligation to modify

previously installed units.

This manual is provided for informational and reference purposes only

and is subject to change without notice.

DATASONICS

PSA-916 Sonar Altimeter March 1997

PREFACE

Congratulations on purchasing a Datasonics PSA-916 Precision Sonar

Altimeter.

This User Manual provides complete instructions on using and maintaining

the PSA-916. Please read it prior to deploying the equipment and keep it

where it can provide a reference during setup and operation of the altimeter.

CUSTOMER FEEDBACK FORM

We appreciate any suggestions you may have for making Datasonics

products more useful to you and other users, including comments about the

PSA-916unititself,thewaytheequipmentis packagedanddeliveredand the

quality of this User's Manual. Please use this Customer Feedback Form to

identifyanyareaswhere wecanmake improvements.Forreturningthis form,

you will receive a complimentary gift from Datasonics

Copy this page to provide individual forms. Please reference page and figure

numbers where applicable.

Please mail this form to:

Datasonics, Inc.

Customer Service

P.O. Box 8 - 1400 Route 28A

Cataumet, Massachusetts 02534

Or fax the form to: 508-563-9312.

Customer Name:

Name of Individual Completing Form:

Model Number

Unit Serial Number

Date:

Comments:

DATASONICS

PSA-916 Sonar Altimeter March 1997

Table of Contents

Section 1. Overview........................................................................................................... 1

Applications .........................................................................................................................2

Section 2. Specifications of Unit.................................................................................... 2-1

Section 3. Setup and Deployment..................................................................................... 1

Unpacking and Disassembly ...............................................................................................1

Connection ...........................................................................................................................2

Connector Pin-out ...........................................................................................................2

RS-232 Output ................................................................................................................3

Error Output ....................................................................................................................4

Analog Output .................................................................................................................4

External Key ...................................................................................................................4

Configuration .......................................................................................................................5

Predeployment .....................................................................................................................5

Deployment .........................................................................................................................6

Maintenance ........................................................................................................................7

Section 4. Theory of Operation ..................................................................................... 4-1

Operating Principle ...........................................................................................................4-1

Board level description .....................................................................................................4-1

Power Supply ...............................................................................................................4-2

Transmitter ...................................................................................................................4-2

Receiver .......................................................................................................................4-2

Microcontroller ............................................................................................................4-3

Firmware Description .......................................................................................................4-3

Main Program ..............................................................................................................4-3

Averaging Algorithm ...................................................................................................4-4

Diagnostics .......................................................................................................................4-4

Analog output ..............................................................................................................4-4

Test Points ....................................................................................................................4-5

Error Message ..............................................................................................................4-5

Section 5. Packing List................................................................................................... 5-1

Section 6. Drawing List ................................................................................................. 6-1

1-1 DATASONICS

User’s Manual March 1997

Section 1. Overview

ThePSA-916isamicroprocessor-controlled,self-contained,underwater

acoustic product. It generates a narrow beam acoustic signal and

measures the travel time for the signal to bounce back from the target

surface. The unit provides range data in both analog and digital formats

for analysis and process control.

The PSA-916 is housed in a corrosion-resistant anodized aluminum

pressure case.It is O-ring-sealed andrated for operationin water depths

up to 2,500 meters. The external 6-pin connector provides connections

for external power source input, external key source input, analog and

RS-232 output.

Figure 1-1 PSA-916 Sonar Altimeter

PSA-916 Sonar Altimeter 1-2

Overview Applications

1.1 Applications

The Model PSA-916 with the built-in flexibility of its microprocessor design,

cost-effectively meets a wide variety of sonar measurement applications with

a single self-contained instrument.

The most common use of the Model PSA-916 Sonar Altimeter is for altitude

measurement (height above bottom). Other uses include:

!Wave height measurement

!Obstacle avoidance

!Altitude of an ROV and other submersibles

!Surveying of shallow waters

!Sediment transport studies

2-1 DATASONICS

Volume I System Manual March 1997

Section 2. Specifications of Unit

TRANSMIT FREQUENCY: 200 kHz

TRANSMIT PULSE WIDTH: 250 microseconds

BEAM PATTERN: 14° conical

PULSE REPETITION RATE: Selectable: Internal or External

Internal - 5 pulses per second

External - customer controlled rate, up to 5

pulses per second

RANGE: 100 meters full scale; 1.0 meter guaranteed

minimum; 0.8 meter typical

ANALOG OUTPUT: 0 to 5 VDC

DIGITAL OUTPUT: RS-232, baud rate 9600, 4800, 2400 or 1200,

(user selectable)

RESOLUTION: RS-232: 1 cm

Analog: 2.5 cm

POWER REQUIREMENT: 6 to 24 VDC

CURRENT: 50 ma @ 15 VDC

100 MA @ 6 VDC

OPERATING DEPTH: 2,500 meters

CONNECTOR: Part Number: Impulse XSG-6-BCL-3/4-16

MATING PIGTAIL: Part Number: Impulse RMG-6-FS

DIMENSIONS: 2 1/4 in. OD x 9 in. long

WEIGHT: In Air: 1.4 lbs

In Water: 0.8 lbs

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