Simrad PI32 User Manual

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Operator manual

Simrad PI32 Catch monitoring system

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M A X I M I Z I N G Y O U R P E R F O R M A N C E A T S E A

857-164636 / Rev.A

Simrad PI32

Catch monitoring system

Operator manual

Important notice

Operation of the PI32 Catch monitoring system

assumes that the communication between the

Operator Unit and the sensors is fully functional.

Ensure that the communication channels and update

rates defined on the Operator Unit matches those of

the sensors.

About this document

Rev Date Written by Checked by Approved by

Rev.A

04.12.05 RBr KRa KRa

Original issue

reproduced or otherwise copied without prior permission from Simrad AS. The information contained in this document is subject to change without prior notice.

Simrad AS shall not be liable for errors contained herein,or for incidental or consequential damages in connection with the furnishing, performance, or use of this document.

The equipment to which this manual applies must only be used for the purpose for which itwasdesigned.Improperuseormaintenancemay causedamagetotheequipment or injury topersonnel. The usermustbefamiliar with the contentsof the appropriate manuals before attempting to operate or work on the equipment. Simrad AS disclaims any responsibility fordamageorinjurycausedbyimproperinstallation,useormaintenanceoftheequipment.

If you require maintenance on your Simrad equipment, contact your local dealer. You can also contact Simrad using the following e-mail address: fish-support@simrad.com

Sections

1Introduction

This section introduces the PI32 Catch monitoring system operator manual. Refer to page 1.

2 System description

This section provides a general introduction to the PI32 Catch monitoring system and the units in use. Refer to page 2.

3 Getting started

This section provides general guidelines to help you get started with the PI32 Catch monitoring system. Refer to page 8.

4 Applications

This section gives an overview of the various applications that the PI32 can offer. Refer to page 20.

Operator manual

5 Display modes

This section gives an in--depth description of all the display presentations. Refer to page 27.

6 Operational procedures

This section provides detailed procedures to guide you through the most common functions. Refer to page 45.

7 Practical use of the sensors

This section describes how to install and use each sensor type. Both PI and PS sensors are described and explained. Refer to page 83.

8 Sensor chargers

This section describes how to install and use the sensor chargers. Refer t o page

144.

9Menusystem

This section allows you to access the reference information from the menu structure. Refer to page 149.

10 References

This section details the various setup pages, those selected from the menu system and those accessed from the display presentation. Refer t o page 152.

11 PI Configurator

This section explains how to use the PI Configurator utility to change the sensor’s communication channel and update r ate. Refer to page 184.

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Simrad PI32

12 Sensor test procedures

This section provides simple test procedure you can use to verifythe the sensors are working properly. Refer to page 223.

13 Technical specifications

This section provides the basic technical specifications. Refer to page 243.

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Operator manual

INTRODUCTION 1..............................................

SYSTEM DESCRIPTION 2......................................

System diagram 3..........................................

Operator Unit 4...........................................

Hull mounted and portable hydrophones 5......................

Sensor overview 6.........................................

Battery chargers 7..........................................

GETTING STARTED 8...........................................

How to switch power on and off 9.............................

Defining initial presentation pages 10...........................

Introduction to the main menu 12..............................

Introduction to the keypad 13.................................

Introducing the sensors 15....................................

APPLICATION EXAMPLES 20....................................

Purse seine 21..............................................

Danish seine 22............................................

Bottom trawl 23............................................

Pelagic trawl 24............................................

Echo sounder 25............................................

Graphic display 26..........................................

DISPLAY PRESENTATIONS 27..................................

Numeric display 28.........................................

Graphic display 35..........................................

Surface temperature 37.......................................

Status display 38...........................................

Echo sounder display 40.....................................

Navigation display 43.......................................

Position display 44..........................................

OPERATIONAL PROCEDURES 45................................

Overview 45...............................................

How to define sensor presentation 46...........................

How to set up the sensors 48..................................

How to mount the sensors on the net 51.........................

How to use the sensors 52....................................

How to replace the sacrificial water switch 53....................

How to test the sensors 54....................................

How to calibrate the Depth sensor 55...........................

How to define sensor offsets 56................................

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III

Simrad PI32

How to set up a Twin Spread sensor for twin trawl applications 57....

How to access graphic display parameters 62.....................

How to view echo sounder data 63.............................

How to set up marker lines 64.................................

Special features for trawl marker lines 67........................

How to access echo sounder parameters 69.......................

How to use visual aids and filters 70............................

How to define echo sounder range 72...........................

How to zoom in on bottom echoes 74...........................

How to zoom in on pelagic echoes 75...........................

How to enable A-Scope presentation 76.........................

How to define alarm limits 77.................................

How to select menu language 80...............................

How to control automatic page rotation 81.......................

How to restore default settings 82..............................

PRACTICAL USE OF THE SENSORS 83..........................

Sensor configuration 84......................................

PI Bottom Contact sensor 87..................................

PS Bottom Contact sensor 91.................................

PI Catch sensor 95..........................................

PS Catch sensor 100..........................................

PI Depth sensor 104..........................................

PS Depth sensor 109.........................................

PI Height sensor 114.........................................

PI Rip sensor 118............................................

PI Spread and Remote sensors 123..............................

PI Twin Spread 128..........................................

PI Temperature sensor 133.....................................

PS Temperature sensor 139....................................

SENSOR CHARGERS 144..........................................

Overview 144...............................................

PI Charger 145..............................................

PS30 Charger 147...........................................

MENU SYSTEM 149................................................

The main menu 150..........................................

REFERENCES 152..................................................

Depth calibration 153.........................................

Echo presentation setup 154....................................

Echo sounder setup 157.......................................

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Operator manual

Factory presets 159..........................................

Graphic setup 160...........................................

Interface setup NMEA 162....................................

Interface setup remote/alarm 167................................

Navigation setup 168.........................................

Numeric setup 169...........................................

Offset adjust 170............................................

Page setup 171..............................................

Palette setup 172............................................

Position display setup 173.....................................

Receiver setup 174...........................................

Sensor alarms 177...........................................

Sensor setup 179............................................

Speed setup 180.............................................

Surface temperature setup 181..................................

Trawl info setup 182.........................................

Units setup 183..............................................

PI CONFIGURATOR 184..........................................

Purpose 184................................................

Basic information 185........................................

About sensor configuration 187.................................

Main dialogue description 189..................................

Operational procedures 191....................................

References 198..............................................

Maintenance 219............................................

SENSOR TEST PROCEDURES 223.................................

Overview 223...............................................

Bottom Contact test procedure 224..............................

Catch sensor, test procedure 227................................

Depth sensor, test procedure 230................................

Height sensor, test procedure 233...............................

Spread & Remote sensors test procedure 236......................

Temperature sensor, test procedure 240...........................

TECHNICAL SPECIFICATIONS 243...............................

Sensors 244................................................

INDEX 249.........................................................

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Simrad PI32

Sensors

Use this table to write down the sensors you use on your PI32 Catch monitoring system.

Sensor

type

Serial

number

Communication

channel

Update

rate

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Operator manual

Sensors

Use this table to write down the sensors you use on your PI32 Catch monitoring system.

Sensor

type

Serial

number

Communication

channel

Update

rate

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VII

Simrad PI32

VIII

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INTRODUCTION

The Simrad PI32 is an integration of proven commercial fishing technologies which can dramatically increase the yield and effectiveness of purse/danish seining and bottom/pelagic trawling applications.

By means of three underwater sensors mounted on the gear, this robust, maintenance-free catch monitoring system allows unparalleled control over fishing operations by providing continuous, centralised information on the vessel’s position, its gear and the environment at and below the surface.

This manual is not intended to be read from cover to cover, but is designed as a book of references that you can consult whenever necessary.

This manual describes PI32 software version SW 3.09.

Introduction

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( 6521)CD

Topics

→ System description, page 2 → Getting started, page 8 → Applications, page 20 → Display modes, page 27 → Operational procedures, page 45 → Sensors, page 83 → Menu system, page 149 → References, page 152 → PI Configurator, page 184 → Sensor test procedures, page 223

Simrad PI32

SYSTEM DESCRIPTION

The Simrad PI32 Catch monitoring system consists of an operator station, a hydrophone and an optional echo sounder transducer. The hydrophone and the transducer are both mounted under the vessel’s hull. The system further comprises a number of small and robust sensors measuring the conditions on your fishing gear.

The PI32 Catch monitoring system can work with three sensors simultanously.

The sensors are powered by built-in rechargeable batteries. They are housed in titanium casings, and designed using advanced shock absorbing materials. The information collected by the sensors are sent through the water to the hydrophone by means of coded sound waves. From the hydrophone, the signals are sent to the operator unit, which decodes the information, interprets it, and finally present it to you.

Topics

→ System diagram, page 3 → Operator unit, page 4 → Hydrophones, page 5 → Sensors overview, page 6 → Battery chargers, page 7

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System diagram

System description

(A) = Operator Unit (B) = PI charger (C) = Hydrophone

(provides communication with the sensors)

(D) = Optional echo sounder transducer. Several types are available.

(E) = Sensors mounted on the net. Maximum three sensors may be used simultanously, and several types are available.

(F) = Interfaces to external sensors (serial lines, NMEA format)

(G) = +24 Vdc power

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Simrad PI32

Operator Unit

The PI32 Operator Unit is a marine grade electronic instrument incorporating an impact resistant polycarbonate front panel, die-cast aluminium housing and watertight electrical connections.

The PI32 electronics are sealed in the operator unit allowing the it to be flush or bracket mounted in the wheelhouse or at an exposed control station.

Computed information is displayed in both numerical and graphical form on the display. The unit is operated using drop-down menus and an integrated keypad.

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System description

Hull mounted and portable hydrophones

Two hull mounted hydrophones are available, one for purse seining operations, and one for trawl operations. You can install both, and then select active hydrophone by means of a selector box on the bulkhead.

Purse seining: The hull mounted hydrophone for purse seining operations has a 90 degrees horizontal beam and a 30 degrees vertical beam to provide the PI32 with optimal reception from the sensors. This specific beam pattern is especially suited for purse seining and the wide coverage area reduces the need for careful alignment.

Trawling: The hull mounted hydrophone for trawling operations has a 50 degrees horizontal beam and a 30degrees vertical beam to provide the PI32 with optimal reception from the sensors. This specific beam pattern is especially suited for trawling and the wide coverage area reduces the need for careful alignment.

(CD5582)

Portable: A portable hydrophone is also available. It is designed as a temporary measure until a fixed hydrophone can be installed at the vessel’s next planned dry docking. It has an omni-directional beam and a 50 meter integrated cable which is sheathed in polyurethane providing robust external protection to compliment its 150 kg tensile strength. The cable is supplied on a reel for convenient retrieval and stowage, and is equipped with a plug for easy attachment to the Operator Unit.

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Simrad PI32

Sensor overview

This chapter provides a very short description of each sensor.

• Depth sensor - The Depth sensor provide information about

the current depth as well as the descending or ascending rate related to the surface.

• Catch sensor - The Catch sensor provides information about

the amount of catch in the trawl. The sensor monitors the opening of the meshes in the cod-end, and will activate once the caught volume pulls the detector wire. To monitor the filling rate, you are adviced to use minimum two sensors.

• Bottom Contact sensor - The Bottom Contact sensors

detects if a trawl is accidentally lifted off the seabed, or a purse seine is touching the bottom.

• Rip sensor - The Rip sensor provides an immediate warning

when the net is ripped.

• Temperature sensor - Temperature sensors read and transmit

the ambient water temperature at the gear depth.

• Height sensor - The Height sensor contains s small echo

sounder to measure the current depth related to the seabed.

• Spread & Remote sensor - These sensor always work in

pairs, and they measure the distance betwen the trawl doors. You can also use two Remote sensors if you run a twin trawl.

The use of separate communication channels for the individual sensors allows you to use your sensors in the vincinity of other vessels using PI or PS sensors. The communication channels can be defined and/or changed onboard your vessel using a standard computer and the PI Configurator utility.

Related topics

→ More information about the sensors, page 15 → How to use the sensors, page 83

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System description

Battery chargers

All sensors are power by internal batteries, and these need charging at regular intervals. The Simrad chargers have been designed to allow the sensors to be stored in charging positions whenever they are not used, and “overcharging” will not take place. Either of the two charger types can be used on any of the sensors, but the PI Charger will only provide fast charging on the PI Sensors.

PS30 Charger

Three different Simrad PS30 Chargers are available depending on the vessel’s main power supply; 230 Vac, 110 Vac and +24 Vdc.

PI Charger

The PI Charger will provide fast charging of the new PI sensor series. The Simrad PI Charger requires a +12 to +32 Vdc power supply.

Related topics

→ PI Charger, page 145 → PS30 Charger, page 147

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Simrad PI32

GETTING STARTED

This section contains an brief overview of the basic system operation. If you are a first time user, we recommend that you read through this chapter while operating the PI32 so that you can familiarize yourself with the buttons, menus and display presentations.

In order to navigate the menu structures and display presentations, you need to know the most important buttons.

MENU: Press to access the main menu. Press again to close it. ENT: Press to apply the changes you have requested. Selector pad (circular): Press along the edges to move the

cursor. WIN: Press to leaf through the predefined display pages

(windows). You can have four different presentations active simultanously, and use this button to access them.

Topics

→ How to switch power on and off, page 9 → Defining initial presentation pages, page 10 → Introducing the main menu, page 12 → Introducing the keypad, page 13 → Introducing the sensors, page 15

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Getting started

How to switch power on and off

Observe the following procedure to switch the PI32 on and off.

Power on

1 Press and hold the PWR button until the display is

switched on.

2 Observe that the start-up page appears. When you power up the PI32, it will automatically assume

operation using the most recent page mode.

Power off

1 Press the PWR buttontocalluptheLight and power

dialogue.

2 Press and hold the PWR button to switch off the PI32.

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Simrad PI32

Defining initial presentation pages

Observe the following procedure to set up the four display pages on the PI32. The presentations chosen are those commonly used, but using the guidelines in this procedure you can change the content of individual pages to suit your requirements.

Page 1: Echo sounder

1 Press the MENU button to bring up the main menu. 2 Press the Selector pad to move the cursor (inverse video)

to the ECHO choice on the main menu. 3 On the Echo menu, select Echo display. 4 Press the ENT button to enter the choice.

An echo sounder appears. If you already know the basic settings of an echo sounder you can access the setup page by pressing the ENT button one more time.

Page 2: Numeric display

1 Press the WIN button once to select the next display page. 2 Press the MENU button to bring up the main menu. 3 Press the Selector pad to move the cursor (inverse video)

to the Fishery choice on the main menu. 4 On the Fishery menu, select Numeric display. 5 Press the ENT button to enter the choice.

The numeric display appears. If you already know how to perform the basic setup, you can access the setup page by pressing the ENT button one more time.

Page 3: Graphic display

1 Press the WIN button once to select the next display page. 2 Press the MENU button to bring up the main menu. 3 Press the Selector pad to move the cursor (inverse video)

to the FISHERY choice on the main menu. 4 On the Fishery menu, select Graphic display. 5 Press the ENT button to enter the choice.

The graphic display appears with the sensor data shown on the top and the echo sounder shown below. If you already know how to set up the basic parameters you can access the setup page by pressing the ENT button one more time.

Page 4: Navigation display

1 Press the WIN button once to select the next display page.

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Getting started

2 Press the MENU button to bring up the main menu. 3 Press the Selector pad to move the cursor (inverse video)

to the NAV choice on the main menu. 4 On the Navigation menu, select Navigat ion display. 5 Press the ENT button to enter the choice.

The navigation display appears. If you already know how to set up the basic parameters you can access the setup page by pressing the ENT button one more time.

Leafing through the pages

To leaf through the display presentations you have defined, press the WIN button.

Related topics

→ Display presentations, page 27

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Simrad PI32

Introduction to the main menu

The main menu is located across the top of the display. To open the menu, press the MENU button. Note that if it is left unactivated, the menu will disappear automatically after a few seconds.

Each of the four options of the main menu provide a drop-down menu. On these, you can select which information to view on the display pages, or which parameters to define. Main and drop-down menus are highlighted when selected, and the complete main menu title is displayed in the top left-hand corner of the screen.

• To open a sub-menu, press the ENT button, or press “down”

on the selector tab.

• To make your selection, highlight the choice, and press the

ENT button.

Related topics

→ The choices on the main menu, page 150

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Getting started

Introduction to the keypad

The keypad is used for direct user interface with the PI32 system, and allows you to control the functionality. Note that the majority of the buttons are mainly used only during echo sounder operations, and that some of them will only work when they are enabled by a specific function.

MENU: This button turns the menu bar on and off. It will also allow you to exit dialogues without applying any changes.

ENT (Enter): Turns the cursor on and off. Opens for insertion, and confirms the editing of data.

Selector pad: Use this button to navigate through menus and dialogues. It moves the cursor horizontally by pressing it on the left or right side, and vertically by pressing it on its top or bottom.

-/+: These two buttons are used to select between available

values, scales and ranges. (-) reduces and (+) increases the graduation.

VRM (Variable Range Marker): This button provides a horizontal marker line on the echo sounder display. Use the Selector pad to alter the depth of the marker. Press the button one more time to switch the marker line off.

WIN (Windows): Changes the display presentation between four predefined page modes.

STND (Standard): This button actuates a full-screen standard echo sounder display. This is done by replacing the current presentation with the echo sounder presentation. If you did not have an echo sounder presentation amoung your four predefined pages, you will have one now. If you already had such a presentation on a different page, you will now have two.

ZOOM: This button actuates a full-screen standard echo sounder display, and then expands the area around a variable range marker. Adjust the depth of the range marker with the selector pad, and choose the zoom range in the setup menu. The page is provided by replacing the current presentation with the echo sounder presentation. If you did not have an echo sounder presentation amoung your four predefined pages, you will have one now. If you already had such a presentation on a different page, you will now have two.

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Simrad PI32

B-LCK (Bottom lock): This button actuates a full-screen standard echo sounder display, and then expands the area just above the bottom. In the expanded presentation, the bottom will appear flat. Choose the vertical expansion range in the setup menu. The page is provided by replacing the current presentation with the echo sounder presentation. If you did not have an echo sounder presentation amoung your four predefined pages, you will have one now. If you already had such a presentation on a different page, you will now have two.

A-SCP (A-Scope): This button will only work if you have an echo sounder presentation on your current page. It will open a vertical presentation of the echoes from the latest ping. The horizontal deflections indicate the strength of the echo, while the vertical information shows at which depth the echoes appeared.

GAIN: The two gain buttons are used to adjust the receiver gain on the echo sounder.

PWR* (Power): This button is used to switch the PI32 system on and off. During operation, it is also used to adjust the display intensity and the background illumination of the buttons.

EVENT: This button places a vertical marker on the echo sounder depth display to identify an event.

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Getting started

Introducing the sensors

The PI32 Catch monitoring can be used with a variety of sensors. All these sensors can be placed on your trawl or purse seine to monitor key parameters.

On the PI32, you can use a maximum of three sensors simultanously.

There are two sensor families; PI and PS. The sensors in the two families are almost identical, and they can be used together on the same PI32 system. The PI sensors will however offer increased range, some added functionality, and they can also be charged much faster using the PI Charger.

Bottom Contact: Best at the bottom!

With patented technology and awardwinning design, Simrad provides you full control of the actions that take place at the bottom. Mounted on a bottom trawl, pelagic trawl or purse seine, this sensor will provide the important information when you need it!

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(A) = The Bottom Contact sensor mounted on a bottom trawl will let you know once the trawl lifts a few centimeters above the bottom. You can then immediatley perform the necessary adjustments, and you will not loose any catch.

(B) = On a purse seine you will be notified once the seine reaches the bottom, and you can thus fish even on a rough bottom.

The Bottom Contact sensor will let you know immediately if your gear touches the bottom.

• Bottow trawl: If your trawl lifts off the bottom, this may

cause fish to escape, and hence reduce the catch. This sensor will detect this, and allow you to trim your equipment for perfect balance.

Simrad PI32

• Pelagic trawl: On a pelagic trawl, this sensor proves very

useful when the trawl moves downwards. It will let you know immediately if the footrope touches bottom.

• Purse seine: When you work with a purse seine, you need to

know when the seine reaches the bottom. This sensor will let you know. once it happens.

• Danish seine: Used on a Danish seine, the sensor will let you

know when the net has a stable bottom contact, and when it is time to haul.

• Scientific research: During scientific surveys, an exact

definition of towed distance with proper ground gear contact is an essential parameter in bottom trawl swept area estimates of fish abundance. Using a Bottom Contact sensor will reduce errors in this key parameter.

Catch sensor: When is the trawl full?

This is your “eye” at the cod-end. With PI Catch sensors in use, you can easily monitor the fi lling rate and the amount of catch in the trawl. Save time and fuel, haul in the trawl at the right moment! The design is rugged and awardwinning, and the sensor’s sensitivity is easily adjustable for trawls of all sizes.

Some professionals claim that the Catch sensor is the most important sensor on the trawl. Why? Because it will tell you the amount of catch in the trawl.

The sensor simply monitors the expansion of the meshes in the cod-end. Once the volume caught is enough to expand the meshes, they will pull the detector wires and engage the sensor. The sensitivity of the sensor can easily be adjusted, just extend the detection rubber bands to span additional meshes.

To monitor the filling rate, we recommend that you use minimum two sensors. Place the first sensor at the far end of the cod-end, it will tell you that the trawl is actually fishing. Place the second sensor closer to the trawl opening. Once the trawl is filled to the chosen location, the sensor is engaged, and you know that it is time to haul.

Use the PI Catch sensor to adjust the catch volume according to the production capacity, check that the trawl is fishing, adjust the caught volume to secure quality, and minimize the towing time to save fuel. These are only a few of the reasons why this sensor is considered to be so important.

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Getting started

Depth: How deep can you go?

When the sonar and echo sounder tell you how deep the school goes, it is good to know that you can place your fishing gear at the same depth. And even better, you can monitor and hold the desired depth. The design is rugged and awardwinning, and the sensor is available for three different depth ranges.

The PI Depth sensor provides information about the current depth and the depth changes of your gear.

• Bottom trawl: On a bottom trawl, you will use the sensor to

achieve full control when shooting, and to position the trawl on the slope.

• Pelagic trawl: During pelagic trawling, you know how

important it is to position the trawl relative to the largest concentration of fish. By using a Depth sensor, you can monitor the exact depth relative to the surface, and adjust the trawl depth accordingly. Additional depth sensors on the doors will monitor if the doors stay at the same depth.

• Purse seine: During seining, use the Depth sensor to monitor

the depth of the net, and the descending speed of the net. Then you will know when to start pursing, and which speed to use.

• Danish seine: Mounted on a Danish Seine the Depth sensor

monitors the sinking speed of the net, and it will tell you when to start hauling once the net has stopped sinking.

Height sensor: Accurate distance to the bottom!

With a built-in echo sounder, this new PI sensor is full of advanced technology. Wherever you place it, it will always tell you the exact distance to the bottom.

The height sensor measures the height over the bottom, that is the distance from the bottom and up to wherever the sensor is located. This provides you with a valuable range of applications for bottom and pelagic trawling.

• Bottom trawl: Place the sensor behind the headrope, and it

will tell you the height of the trawl opening. This allows you to adjust you equipment immediately if the opening is reduced, and you will avoid loosing catch.

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• Pelagic trawl: With a height sensor behind the footrope you

will know at once if the trawl approaches the bottom. If you use a second sensor behind the headrope, the difference between the two measurements will give you the height of the trawl opening.

Simrad PI32

Rip: Check for damages!

The Rip sensor is identical to the Catch sensor, and can thus be regarded as a application for the Catch sensor. Place the sensor on the trawl belly behind the footrope, and use it to detect if the trawl is torn or in any other ways damaged by rocks or other roughness on the bottom. If this is detected immediately you can adjust the gear to minimise the damage.

Spread and Remote: Check the trawl doors!

This dynamic duo tells you the exact distance between the trawl doors. Used on bottom and pelagic trawls the Spread and Remote sensors provide crucial information about your trawl behaviour. On a twin trawl, simply add a Remote sensor and you have both openings covered!

These two sensors always work in pairs. They are used to monitor the physical distance between the trawl doors during bottom and pelagic trawling.

Use a Spread sensor on the port door and a Remote sensor on the starboard door. Both sensors are normally mounted in special adapters, but you may also attached them to the wing-end or warp using snap hooks or rope.

The Spread sensor communicates with the Remote sensor using a special transverse communication link. By means of this link it measures the excact distance (maximum 350 meters) between the two sensors. The information is is transmitted to the vessel by the Spread sensor.

As you already know, correct door spread is important in order to obtain the correct sweep-angle, as this ensures optimal trawl performance. Door behavior and stability during shooting and towing is also monitored by these sensors. Many regard this pair of sensors one of the most important sensors to obtain efficient trawling.

A special version of the PI Spread sensor, The PI Twin Spread, allows you to use a single Spread sensor with two Remote sensors to monitor a twin trawl.

Temperature: Too warm or too cold water?

Fishingintoowarmortoocoldwatermaybejustawasteof time and money. The same applies to a pelagic trawl placed on the wrong side of a thermal layer. Using advanced technology, rugged construction and awardwinning design, the PI Temperature sensor allows you to increase your fishing efficiency.

The PI Temperature sensor tells you the exact sea water temperature while you are fishing.

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Getting started

The water temperature is an important parameter. Fish and bait are temperature sensitive, and they are normally found within specific temperature zones for feeding and spawning.

However, the temperature layers in the water are changing constantly, and for this reason the temperature must be monitored constantly. Fishing in an area with unfavourable water temperature might be just a waste of time!

For any kind of trawling, use this sensor to monitoring and log the temperature. Then, increase your knowledge about the correlation between temperature, fish concentration and catch efficiency. On a purse seine net, monitor the temperature to see when you are passing the thermo-cline.

Related topics

→ Purse seine, application, page 21 → Danish seine, application, page 22 → Bottom trawl, application, page 23 → Pelagic trawl, application, page 24 → Sensor configuration, page 84 → PI Bottom Contact, page 87 → PS Bottom Contact, page 91 → PI Catch, page 95 → PS Catch, page 100 → PI Depth, page 104 → PS Depth, page 109 → PI Height, page 114 → PI Rip, page 118 → PI Spread & Remote, page 123 → PI Temperature, page 133 → PS Temperature, page 139

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Simrad PI32

APPLICATION EXAMPLES

The Simrad PI32 system is designed to fulfill all your requirements within a range of specific applications. This chapter provides a few examples on how the various sensors can be placed on your fishing gear. It also provides a brief description of the echo sounder and graphic display functionality.

Topics

→ Purse seine, application, page 21 → Danish seine, application, page 22 → Bottom trawl, application, page 23 → Pelagic trawl, application, page 24 → Echo sounder, application, page 25 → Graphic display, application, page 26

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Applications

Purse seine

When used for purse seining, the PI32 system must have one or more of the following sensors attached to the net: Depth sensor, Bottom Contact sensor and Temperature sensor.

The system is designed to be used with up to three sensors, optimally two Depth sensors and one Temperature or Bottom Contact sensor. The sensor configuration can be tailored to suite individual needs.

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(A) = (B) = Depth / Bottom Contact sensor (C) = Temperature / Bottom Contact sensor (D) = Depth sensor (placed on the headrope to warn if it sinks)

Using the recommended sensors, the PI32 system will provide the following information:

• When to begin pursing, and which speed to use for the most

efficient pursing

• Location of the net related to the school

• Bottom approximation without net contact

• Net sink rate, when the net has stopped sinking, and when it

starts to rise

• Water temperature at different depths

• When the gear passes the thermocline

Simrad PI32

Danish seine

When used for Danish seining the PI32 system needs up to three of the following sensors attached to the net: Depth and Bottom Contact.

The system is designed to be used with up to three sensors. Optimally two Depth sensors (located at the top and bottom of the net) and one Bottom Contact sensor are used. Sensor configuration can be tailored to suite individual needs.

(A) = Bottom contact sensor (B) = (C) = Depth sensors

Using the recommended sensors, the PI32 system will provide the following information:

• When to start hauling

• Monitor net sinkage rate

• Bottom approximation without net contact

• Net opening (using two depth sensors)

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Applications

Bottom trawl

When used for bottom trawling, the PI32 system will give you all necessary information about the trawl status. You should have minimum three of the following sensors attached to the net: Depth sensors(s), Bottom Contact sensor, Rip sensor and Catch sensors(s).

The system is designed to be used with up to three sensors. We recommend that you use a Catch sensor, a Height sensor behind the headrope and a Spread sensor. Sensor configuration can be tailored to suite individual needs.

(A) = Depth sensor (headrope) (B) = Depth sensor (footrope) (C) = Bottom contact sensor (D) = Rip sensor (E) = (F) = Catch sensor(s)

Using the recommended sensors, the PI32 system will provide the following information:

• Optimal vessel speed with regard to net sink rate and bottom

approximation.

• When the codend is full.

• Footwire/bottom lift-off.

• Net opening (using two depth sensors) and damage

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Simrad PI32

Pelagic trawl

When used for pelagic trawling the PI32 system must have one or more of the following sensors attached to the net: Depth sensor(s), Bottom Contact sensor, Temperature sensor, Rip sensor and Catch sensor(s).

The system is designed to be used with up to three sensors. We recommend that you use a Catch sensor, a Depth sensor behind the headrope, and a Spread sensor. Sensor configuration can be tailored to suite individual needs.

(A) = Depth sensor (headrope) (B) = Depth sensor (footrope) (C) = Bottom contact sensor (D) = Rip sensor (E) = Temperature sensor (F) = (G) = Catch sensors

Using the recommended sensors, the PI32 system will provide the following information:

• Optimal vessel speed with regard to net sink rate and school

location.

• When the codend is full.

• Bottom approximation to avoid net contact.

• Net opening (using two depth sensors) and damage

• Ambient water temperature at gear depth.

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Applications

Echo sounder

The built-in echo sounder will provide information about depth, bottom contours and the presence of fish below the vessel. The echo sounder can use three frequencies; 38 kHz, 50 kHz and 200 kHz. Two frequencies can be operated simultanously.

The following operational modes are available

• Standard mode: Range start is fixed, and the depth range

can be altered

• Bottom lock: The echo sounder provides an expansion

window to study the echoes closest to the bottom.

• Zoom: The echo sounder provides an expansion window to

study echoes in the water column.

• A-scope: Single ping echo presentation

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Simrad PI32

Graphic display

By means of the built-in echo sounder and the information provided by the analogue sensors, you can set up a graphic display to give you a total overview of the underwater situation.

The graphic display presents the echogram at the bottom of the screen while the numerical sensor presentations are listed at the top of the screen. The information from those sensors providing analogue data (Depth, Height, Temperature and Spread) are superimposed on the echogram.

Related topics

→ How to superimpose echo sounder data, page 63 → How to superimpose marker lines, page 64

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DISPLAY PRESENTATIONS

The PI32 supports a range of display presentations. These are the information elements that you can choose to see on each page.

Topics

→ Numeric display, page 28 → Graphic display, page 35 → Surface temperature, page 37 → Status display, page 38 → Echo sounder display, page 40 → Navigation display, page 43 → Position display, page 44

Display modes

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Simrad PI32

Numeric display

The numeric display provides vital sensor data in large, easy to read digits and symbols. In the following, all sensor presentations are explained in detail.

This illustration shows a typical twin display setup with the numeric presentation from six sensors on the left side and an echo sounder presentation on the right hand side.

The background colour for the numerical display presentations can be selected individually from the palette. If the data from the sensors are unstable, the presentations will use the following character presentations:

??? - The sensor provides uncertain readings. ±±± - No communication between Spread and Remote sensors ***.* - No communication with the sensor.

Topics

→ Bottom Contact sensor presentation, page 29 → Catch sensor presentation, page 30 → Depth sensor presentation, page 31 → Height sensor presentation, page 32 → Spread sensor presentation, page 33 → Temperature sensor presentation, page 34

To change presentation parameters

The numeric presentations are controlled by the parameters defined in the setup. To change these parameters, press the ENT button to access the Numeric setup page.

Related topics

→ Numeric setup, page 169

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Display modes

Bottom Contact presentation

The Bottom Contact sensor presentation is shown below.

(A) The character and the number identifies the type of sensor, and which identification number the sensor has on the PI32 system. In this example, B4 means that it is a bottom contact sensor, and that it is sensor no.4.

(B) Status field. The three arrows display “bottom contact”, graphically represented by the black or red downward pointing arrows in contact with the horizontal black line. Upon loss of bottom contact, the arrows will rise from the black line (seabed) and change colour from black to red. At the same time an audible warning is sounded, and the timer starts. Bottom sensor measurement range may be adjusted as necessary.

(C) Timer, records how many minutes that have elapsed since the sensor lost bottom contact. If the bottom contact is regained, the timer stops. It is then restarted once the status changes again. The timer must be manually restarted in the Numeric setup.

(D) Yellow pulse lamp blinks each time a signal is received from the corresponding sensor.

(E) Interference warning, activated when the PI32 detects interference from other nearby vessel(s) operating on the same channel or with similar hydroacoustic equipment. Contact your Simrad dealer to select a different frequency should this problem persist.

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Simrad PI32

Catch presentation

The Catch sensor presentation is shown below.

Note: If you use more than one catch sensor in the trawl, make sure

that you configure them with different channel numbers, and that you mount and read them in the correct order!

(A) The character and the number identifies the type of sensor, and which identification number the sensor has on the PI32 system. In this example, C3 means that it is a catch sensor, and that it is sensor no.3.

(B) Status field. A yellow rectangle means that the sensor has not been activated yet. A red rectangle means that the trawl has been filled with fish, and this has triggered the sensor. When the indicator switches from yellow to red an audible alarm is sounded, and the timer starts.

(C) Timer, records how many minutes that have elapsed since the sensor was triggered. If the status switches from red back to yellow, the timer stops. It is then restarted once the status changes again. The timer m ust be manually restarted in the

Numeric setup. (D) Yellow pulse lamp blinks each time a signal is received

from the corresponding sensor. (E) Interference warning, activated when the PI32 detects

interference from other nearby vessel(s) operating on the same channel or with similar hydroacoustic equipment. Contact your Simrad dealer to select a different frequency should this problem persist.

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Display modes

Depth presentation

The Depth sensor presentation is shown below.

(A) The character and the number identifies the type of sensor, and which identification number the sensor has on the PI32 system. In this example, D1 means that it is a depth sensor, and that it is sensor no.1.

(B) Unit of measure. [m] means meter, [ft] means feet, [fm] means fathoms and [pb] means braccia.

minute. The direction is shown with the arrow (E). If the speed is 0, the arrow is removed.

(E) Direction indicator for net movements. (F) Graphic alarm. The direction of the triangle indicates if the

net depth should be increased or decreased with regard to the selected alarm limits. I f requested, this graphic alarm may be accompanied with an audible alarms.

(G) Yellow pulse lamp blinks each time a signal is received from the corresponding sensor.

(H) Interference warning, activated when the PI32 detects interference from other nearby vessel(s) operating on the same channel or with similar hydroacoustic equipment. Contact your Simrad dealer to select a different frequency should this problem persist.

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Simrad PI32

Height pre sentation

The Height sensor presentation is shown below.

(A) The character and the number identifies the type of sensor, and which identification number the sensor has on the PI32 system. In this example, H1 means that it is a height sensor, and that it is sensor no.1.

(B) Unit of measure. [m] means meter, [ft] means feet, [fm] means fathoms and [pb] means braccia.

(D) Speed of increasing or decreasing depth. The two arrows (E) are used to indicate if the distance is increasing or decreasing. If the depth is constant and the speed is 0, the arrows are removed.

(E) Depth increase/decrease indicators. If the two arrows point towards each other (as shown in the example), the depth is decreasing.

(F) Graphic alarm. The direction of the triangle indicates if the depth should be increased or decreased with regard to the selected alarm limits. I f requested, this graphic alarm may be accompanied with an audible alarms.

(G) Yellow pulse lamp blinks each time a signal is received from the corresponding sensor.

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Display modes

Spread presentation

The Spread sensor presentation is shown below.

(A) The character and the number identifies the type of sensor, and which identification number the sensor has on the PI32 system. In this example, S3 means that it is a spread sensor, and that it is sensor no.3.

(B) Unit of measure. [m] means meter, [ft] means feet, [fm] means fathoms and [pb] means braccia.

(C) Readout of the actual distance between the two trawl doors. (D) Increasing or decreasing distance speed of the trawl door

distance shown in units per minute. The two arrows (E) are used to indicate if the distance is increasing or decreasing. If the distance is constant and the speed is 0, the arrows are removed.

(E) Distance increasing/decreasing indicators. If the two arrows point away from each other (as shown in the example), the distance is increasing.

(F) Graphic alarm. The direction of the triangle indicates if the trawl door distance should be increased or decreased with regard to the selected alarm limits. If requested, this graphic alarm may be accompanied with an audible alarms.

(G) Yellow pulse lamp blinks each time a signal is received from the corresponding sensor.

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Simrad PI32

Temperature presentation

The temperature sensor presentation is shown below.

(A) The character and the number identifies the type of sensor, and which identification number the sensor has on the PI32 system. In this example, T2 means that it is a temperature sensor, and that it is sensor no.2.

(B) Temperature readout. (C) Unit of measure in Celcius or Fahrenheit. (D) Temperature trend, indicates if the temperature is falling or

rising. An arrow pointing up this indicates that the temperature is increasing, while an arrow pointing down indicates decreasing temperature.

(E) Graphic alarm. The direction of the triangle indicates if the temperature is higher or lower than a predefined limit.

(F) Yellow pulse lamp blinks each time a signal is received from the corresponding sensor.

(G) Interference warning, activated when the PI32 detects interference from other nearby vessel(s) operating on the same channel or with similar hydroacoustic equipment. Contact your Simrad dealer to select a different frequency should this problem persist.

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Display modes

Graphic display

The graphic display provided by the PI32 offers an accurate echo sounder combined with numeric readouts from the net sensors.

Note that some of the information provided by the graphic presentation assumes that you have the relevant sensors connected to your PI32 system.

The following information is provided in the graphic presentation.

(A) Numeric display. In this example, the information from a depth sensor is shown. The current depth is 25.9 meters.

(B) Numeric display. In this example, the information from a bottom contact sensor is shown. The trawl has currently lifted off the seabed.

(C) Numeric display. In this example, the information from a catch sensor is shown. The sensor has not yet been triggered.

(D) Depth scale. (E) Data from a depth sensor located on a pelagic trawl. The

information has been superimposed onto the graphic display. The colour of the line will automatically be the same as the current background colour of the relevant numeric display. There are two lines because the height of the trawl opening has been added manually.

(F) Fish echo

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Simrad PI32

(G) Bottom echo (H) Height of trawl opening (manual input) (I) Time scale.

Informationnotshowninthisexample

Temperature scale: When requested, a temperature scale can be provided on the left side of the display. To switch the temperature scale on or off, use the Graphic setup.

Depth bars: Depth information from relevant sensors can be shown as vertical bars on the right side of the display. Each vertical bar will use the same colour as the current background colour of the relevant numeric display. To switch the depth bars on or off, use the Graphic setup.

To change presentation parameters

The presentation is controlled by the parameters defined in the PI32 setup. To change these parameters, press the ENT button to open the Graphic setup page.

To change echo sounder parameters, press the MENU button to open the main menu, and select Echo sounder setup on the Echo menu.

Related topics

→ Graphic setup, page 160 → Echo presentation setup, page 154

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Display modes

Surface t emperature

The Surface temperature display shows the current temperature. By means of the graph it will also show you the temperature history for the past minute. The presentation is activated from the Fishery menu. To have this information available, you must have the relevant temperature feeler connected to your PI32 system. A suitable feeler is integrated with several Simrad echo sounder transducers, or it may be connected as a separate peripheral.

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To change presentation parameters

The presentation is controlled by the parameters defined in the PI32 setup. To change these parameters, press the ENT button to open the Surface temperature setup page.

Related topics

→ Surface temperature setup, page 181

Simrad PI32

Status display

The Status display shows sensor data, signal thresholds and background noise levels providing an overview of present hydro-acoustical conditions and the margin for reliable signal detection. Other information displayed includes cable status, program version, and echo sounder / position information.

Note that some of the information provided by the Status display assumes that you have the relevant sensors connected to and operational on your PI32 system.

The following information is provided by the Status display. (A) Numeric display. In this example, the information from a

depth sensor is shown. The current depth is 47.9 meters. (B) Numeric display. In this example, the information from a

bottom contact sensor is shown. The trawl has currently lifted off the seabed.

(C) Numeric display. In this example, the information from a catch sensor is shown. The sensor has not yet been triggered.

(D) Information lines 1 and 2: The top line provides the following information:

• The status of the MP (MultiPath) filter

• The current software version of the PI32.

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Display modes

The second lines shows:

• The current AGC status (Automatic Gain Control)

• The status off the hydrophone cable. A yellow circle means

that the cable is serviceable. A black circle means that it has broken, while a red circle indicates a short circuit.

• CH/R: The channel number of the sensor from which data

was last received.

• E: Error code for systems manlfunctions. The error code “0”

signifies that no system error is present.

(E) Frequency spectrum for frequencies on the 00 to 15 band. Select the desired band by pressing the respective - or + buttons. Wait for the unit to update the display. The graph represents the associated background noise and the signal strength of the band selected.

(F) Gain indicator (G) Gain indicators for the three current sensors. The green field

indicates that the detection level is within normal specifications. The red field indicates that the signal level is currently over the detection threshold (DT).

(H) Information lines 3 and 4. The top line provides the following information:

• Geographical position (longutide)

• Current course

• Current depth

• Current time.

The bottom line shows:

• Geographical position (latitude)

• Current speed

• Current surface temperature

To change status display parameters

The parameters are fixed, and they can not be changed.

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Related topics

→ Receiver setup, page 174

Simrad PI32

Echo sounder display

The PI32 offers an accurate echo sounder with a colour display. The echo sounder can operate on 38, 50 or 200 kHz, and with two frequencies simultanously. In order to enjoy the echo sounder functionality, you must have one or two echo sounder transducers installed.

Note that some of the information provided by the echo sounder presentation assumes that you have the relevant sensors connected to your PI32 system.

The following information is provided in the echo sounder presentation.

(A) Current sea temperature. (B) Current vessel speed (C) Current depth (D) Colour scale. This scale shows how the echoes are

presented, The strongest echoes are displayed using the colour on the top of the scale, while the weakest echoes are displayed using the colours at the bottom of the scale.

(E) Depth scale: This scale can be set up change automatically depending on the current depth. Automatic depth scale is identified with the text AUTO at the bottom of the scale.

(F) A-scope presentation. (G) Bottom echo

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Display modes

(H) Single fish echo (I) Current primary technical parameters. The top line specifies

the current operational frequency. The second line specifies the current output power (”A” means that it is set automatically), and the third line specifies the current pulse length.

The presentation is controlled by the parameters defined in the presentation setup. To change these parameters, press the ENT button to open the Presentation setup. To change presentation units, press the MENU button to open the main menu, and then select Speed alarm, units and language on the Setup menu.

In the Echo sounder setup (on the Echo menu) you can change the readout for current depth (C). The A-scope presentation can be switched on and off from the Echo menu.

Bottom expansion

The PI32 provides a Bottom expansion function. When enabled the vertical area close to the seabed is expanded. The resulting presentation will not show the depth variations, as the bottom will appear flat. However, echoes close to the bottom will be enhanced. Note that the depth range in this presentation will be “upside down”, as the seabed is defined as level “0”.

To enable this function, press the MENU button, and select

Bottom expansion on the Echo menu. To disable it, select Echo display on the same menu. The vertical size of the

expansion window is controlled by the Expansion window parameter in the Presentation setup.PresstheENT button to access this setup page.

A-Scope

The PI32 provides an A-Scope function. This presentation provides the echo from the latest ping only. The strength of the returned signal from various depths in the water column are indicated by the horizontal deflections from the Y-axis. This presentation is very useful if you wish to search for single fish, as those echoes are hard to see on the regular echogram. Also, the presentation will give an indication on how strong the various echoes are.

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To enable this function, press the MENU button, and select

Turn A-Scope on on the Echo menu. To disable it, select Turn A-Scopeoffon the same menu.

Simrad PI32

VRM expansion

The PI32 provides an VRM expansion function. When enabled the vertical area on both sides on a vertical range marker (VRM) is expanded. The resulting echo sounder presentation is thus split in two with the lower half of the screen providing the expanded view.

When activated, you can move the depth of the vertical marker by pressing the circular Selector pad.

To enable the this function, press the MENU button, and select

VRM expansion on the Echo menu. To disable it, select Echo display on the same menu. The vertical size of the expansion

window is controlled by the Expansion window parameter in the Presentation setup.PresstheENT button to access this setup page.

To change presentation parameters

The echo sounder presentation is controlled by the parameters defined in the setup. To change these parameters, press the ENT button to access the Presentation setup page.

The technical parameters for the echo sounder are located on the Echo sounder setup page. To access, press the MENU button, and select Echo sounder setup on the Echo menu.

Related topics

→ Echo presentation setup, page 154 → Echo sounder setup, page 157

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Display modes

Navigation display

The navigation display provided by the PI32 offers all key information related to waypoint navigation. Note that the information pr ovided by this presentation assumes that you have the relevant sensor (GPS) connected to your PI32 system.

The following information is provided by the Navigation

display: (A) “C” is the current course

over ground, while “B” is the course to the next waypoint.

(B) “DS” is the current depth from the surface, while the temperature is the current surface temperature.

(D) Crosstrack error (E) Crosstrack error (F) Satellite reception status. The character “A” means that the

reception is good, “B” means that the reception is acceptable, and “C” means that it is poor. If there is no reception, the message No valid POS will be shown.

(G) The ideal course line between the two waypoints. (H) These are the crosstrack error alarm lines. (I) The distance to the next waypoint.

To change presentation parameters

The presentation is controlled by the parameters defined in the PI32 setup. To change these parameters, press the ENT button to open the Navigation setup page.

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Related topics

→ Navigation setup, page 168

Simrad PI32

Position display

The Position display provided by the PI32 offers all key information related to safe navigation on one display presentation. Note that the information provided by the Position display assumes that you have the relevant sensors (GSP and temperature feeler) connected to your PI32 system.

The following information is

provided by the position

display:

W ater temperature: The

temperature will only be

available if the applicable

temperature feeler is connected

to the PI32.

Two individual distance logs:

Both distance logs can be reset

using the setup parameters.

Current geographical

position: If the position fails to

be updated, the characters will

flash. Current speed, course and depth: This information will only

be available if the applicable sensors have been connected to the PI32.

Local time and date Status: This is the current status of the satellite reception. The

character “A” means that the reception is good, “B” means that the reception is acceptable, and “C” means that it is poor. If there is no reception, the message No valid POS will be shown.

To change presentation parameters

The presentation is controlled by the parameters defined in the PI32 setup. To change these parameters, press the ENT button to open the Reset log page.

Related topics

→ Reset log setup, page 173

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OPERATIONAL PROCEDURES

Overview

This chapter will provide you with basic procedures in order to help you set up the most common functions and parameters in the PI32.

Operational procedures

Sensor procedures

→ How to show or hide the graphic

alarm, page 46

→ How to show or hide the sensor timers,

page 46

→ How to reset the sensor timers,

page 46

→ How to change background colour,

page 46

→ How to set up the sensors, page 48 → How to mount the sensors on the net,

page 51

→ How to use the sensors, page 52 → How to replace the sacrificial water

switch, page 53

→ How to test the sensors, page 54 → How to calibrate the Depth sensor,

page 55

→ How to define sensor offsets, page 56 → How to set up a Spread sensor for a

twin trawl, page 57

Echo sounder procedures

→ How to access echo sounder

parameters, page 69

→ How to use visual aids and filters,

page 70

→ How to define range, page 72 → How to zoom in on bottom echoes,

page 74

→ How to zoom in on pelagic echoes,

page 75

→ How to activate the A-Scope

presentation, page 76

Common procedures

→ How to define alarm limits, page 77 → How to select menu language, page 80 → How to control automatic page

rotation, page 81

→ How to restore default settings, page 82

Graphic display procedures

→ How to access graphic display

parameters, page 62

→ How to view echo sounder data,

page 63

→ How to set up marker lines, page 64 → How to use the special features for

trawl markers, page 67

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Simrad PI32

How to define sensor presentation

The information from the various sensors are provided by the Numerical display, where each sensor is presented in its own rectangular data winsow.

How to show or hide the graphic alarm

1 Ensure that you have a Numeric display presentation in

your active window.

2 Press the ENT button to open the Numeric setup

dialogue.

3 Switch Show graphic alarm on or off. 4 Press the ENT button to save the parameters and exit.

How to show or hide the sensor timers

Sensor timers are only used on Catch and Bottom Contact sensors.

1 Ensure that you have a Numeric display presentation in

your active window.

2 Press the ENT button to open the Numeric setup

dialogue.

3 Switch Sensor timer on or off. 4 Press the ENT button to save the parameters and exit.

How to reset the sensor timers

Sensor timers are only used on Catch and Bottom Contact sensors.

1 Ensure that you have a Numeric display presentation in

your active window.

2 Press the ENT button to open the Numeric setup

dialogue.

3 Set Reset sensor timers to YES. 4 Press the ENT button to save the parameter and exit. 5 Press the ENT button one more time to accept the process.

The next time you access the Numeric setup dialogue, the value for Reset sensor timers is NO.

How to change the background colour

You can change the background colours on the rectangular data windows in order to easily distingush them from each other.

1 Press the ENT button to open the manin menu.

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Operational procedures

2 On the Setup menu, select Display colour. 3 Observe the first palette page appear. It contains fixed

colours, which can not be altered. Press the + button repeatedly until you reach a custom page.

4 By means of the circular Selector pad and the + and -

buttons, select the requested colour(s).

5 Press the ENT button to accept the choice.

Related topics

→ Numeric setup, page 169 → Numeric display, page 28

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Simrad PI32

How to set up the sensors

The very first time you switch on the PI32, you will need to set up the sensor configuration. This will also be required if you perform a “master reset” on the PI32, and then reload the manufacturer’s default settings.

Observe the following procedure to establish the most common values. For more detailed information about the settings, refer to the References chapter.

Note: In order to establish the sensor configuration, you need to know

what kind of sensors you have, which channels they communicate on, and how often they communicate. This information is required before you start the configuration on the PI32.

Note: Do not attempt to set up the sensors unless this is absolutely

necessary.

We strongly suggest that you use the forms in the front of this manual to write down the sensor you have with information about their update rates and communication channels.

1 Press the MENU button to open the main menu. 2 Open the Setup menu, and select Sensor setup. 3 Press the ENT button to enable modification. Observe the

warning, and press the ENT buttontoproceed.

- In the following, you must use the Selector pad to navigate through the parameters, and the + and buttons to select values.

- Each of the three sensors are initially set to None and Normal, and the communication channels are not defined.

4 For Sensor 1:

a Set type (currently None)toSingle. b Set Update to the current update rate of the chosen

sensor (Slow, Normal or Fast)

c Set Measure to the type of sensor.

d Select transmission Channel (currently NO), and use

the + and - buttons to select desired channel.

5 Repeat for Sensor 2 and Sensor 3. 6 Press the ENT button to save the configuration and exit.

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Operational procedures

Predefined settings

Each sensor is delivered with a predefined setup. This setup includes:

• transmission channel for the acoustic communication link between the sensor and the vessel’s hydrophone

• update rate; how often the sensor sends its readings back to the PI32 system.

To change the sensor setup, you can call your local Simrad dealer, or you can do it yourself if you have the proper equipment, training and the PI Configurator software.

Changing a transmission channel

It may be required to change one or more transmission channels, and there may be many reasons for this.

• You have more than one of each sensor. For example, if you have three temperature sensors, they MUST communicate on three different channels.

• Other vessels near your use the same PI32 system (or a similar), and they have one or more of their sensors set up to the same communication channels as you have. This will create interference, as you will “read” each others sensors.

• If your sensors are set up to use communication channels too close to each other (for example, you have chosen channels 4, 5 and 6), this will limit the vessel’s speed. The reason for this is the doppler effect. If the speed is too high, the doppler will cause the transmission frequencies to change so much that they overlap, and this will create interference. The PI32 will provide a warning if this is about to happen! You must then either change to other communication channels further apart, or reduce the maximum shooting speed.

• If you operate at the maximum range of the sensors, you may be able to increase this range slightly if you use lower communication channels. This is because the lower communication channels user lower transmission frequencies.

Changing the update rate

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It may be required to change the update rate on a sensor, that is how often it sends information back to the PI32 system. A high update rate will give frequent information updates, but the sensor will use more battery power. If you need your batteries to last as long as possible, you must consider lowering the update rate.

Simrad PI32

• A low update rate will provide you with fewer information updates, but the battery will last very long.

• A high update rate will give you frequent information updates, but the battery will run out faster.

All sensors are provided from Simrad with a default update rate setting. In some cases you may find that this update rate does not suit your operational needs. This is a decision you have to make depending on the local fishing conditions.

How to change the sensor setup

To change the sensor setup, you can call your local Simrad dealer, or you can do it yourself if you have the proper equipment, training and the PI Configurator software.

Related topics

→ Sensor configuration, page 179 → Max shooting speed, page 174 → PI Configurator, page 184

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Operational procedures

How to mount the sensors on the net

Once the sensor has been coded correctly, you must mount it on the net. The mounting instructions for each sensor is provided in the Sensors chapter, and the same information can also be found on the Quick Reference Guide for each sensor.

Related topics

→ Sensors overview, page 83

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Simrad PI32

How to use the sensors

Once the sensors have been coded and installed on the net, they will automatically be switched on once they are submerged into water. The PI32 will then automatically retreive information from them, and provided that you have chosen the correct display presentation, the information will be provided to you.

Applications

The various applications available to you with the different sensors are explained in the Getting started and Applications chapters.

Display presentation

How to set up the display to see the information provided by the sensors are described in the Getting started chapters. The various modes are explained in detail in the Display modes chapter.

Practical information

The practical information about the various sensors is provided in the Sensors chapter, and the same information can also be found on the Quick Reference Guide for each sensor.

Related topics

→ Getting started: Presentation pages, page 10 → Getting started: Sensors, page 15 → Applications, page 20 → Sensors overview, page 83

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Operational procedures

How to replace the sacrificial water switch

All PI and PS sensors are equipped with a water switch, and two different types are used. If your sensors are equipped with a brass screw, observe the following procedure for replacement.

1 Turn the sensor upside down, and locate the brass screw. 2 Inspect the screw for wear and tear. If required, replace

the screw.

A standard commercial brass screw is used. Local supply will normally be available, but the following specifications must be met:

Brass, Size M5x10, DIN85A, rounded head

Before a new screw is inserted, Aqua Shield (or a similar underwater lubricant) must be applied. Due to the size of the tube, we recommend that the grease is applied from a syringe.

1 Apply Aqua Shield to the screw threads. 2 Insert the screw, mount firmly, but not too hard. 3 Use maximum torque 1.5 NM

A pack with ten screws and a tube of Aqua Shield can be ordered from Simrad as a spare parts kit.

Aqua Shield is manufactured by D.A.Stuart, Warrenville, Illinois, USA (www.d-a-stuart.com).

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Simrad PI32

How to test the sensors

By using the PI Configurator, you can test the operational status of each sensor. Test procedures for all the sensors have been provided in a separate chapter in this manual.

Note that PI and PS sensors are tested using the same procedures.

Related topics

→ PI Configurator, page 184 → Test procedures, page 223

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Operational procedures

How t o calibrate the Depth sensor

Only the Depth sensor can be calibrated. The purpose is to ensure that the depth reported by the sensor is as accurate as possible.

This procedure is carried out onboard the vessel.

1 Mount a rope to the top fastening lugs on the sensor. 2 Tighten the rope, and measure one meter from the bottom

of the sensor to a spot on the rope. Place a visual marker on the rope at that location.

3 Lower the sensor over the side of the vessel and into the

water. Lower it until the visual marker on the rope is even with the surface.

4 On the PI32, observe the numerical presentation of the

sensor, and allow the reading to stabilize itself.

5 On the PI32, press the MENU button to open the Main

menu.

6 Open the Setup menu, and select Sensor

alarm/calibration.

7 At the bottom of the page, set Depth sensor calibration

to YES.

8 Leave the sensor hanging from the rope for minimum two

minutes. Meanwhile, observe that the numerical presentation shows grey characters only.

9 On the PI32, observe that the numerical presentation of

the Depth sensor is stable, and shows 1 meter.

10 Retrieve the sensor from the water.

Note: In order to calibrate the sensor, it must be submerged in salt

water.

You may wish to use a different depth reference than the sea surface. If this is the case, change the marking on the rope to fit you preference, for example the depth of the keel or the depth of an echo sounder transducer.

Related topics

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→ How to define sensor offsets, page 56 → Depth calibration, setup, page 153

Simrad PI32

How to define sensor offsets

Only the Depth and Spread sensors can have their offset values adjusted. The purpose is to allow you to compensate for known deviations.

You may wish to insert a Depth sensor offset to line up the depth readings from the sensor with those from your echo sounder. If the echo sounder transducer is located X meters below the surface, the Depth sensor should have the same offset value.

Note: If you have performed a Depth sensor calibration, you will see

than an offset value may already be present. This value has been provided by the calibration routine.

1 On the PI32, press the MENU button to open the main

menu.

2 Open the Setup menu, and select Sensor

alarm/calibration. 3 At the bottom of the dialogue, enter the required values. 4 Press the ENT button to save the parameters and exit.

Related topics

→ Offset adjust, setup, page 170

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Operational procedures

How to set up a Twin Spread sensor for twin trawl applications

By means of the T win Spread sensor, you can set up your PI32 to monitor the openings on a twin trawl. Apart from the Twin Spread sensor, you will also need two Remote sensors.

Sensor configuration

The Twin Spread and Remote sensors are supplied in sets, and they MUST operate in these sets. The sets are:

• Twin Spread 1 uses two Remote sensors; Remote 1 and

Remote 3.

• Twin Spread 2 uses two Remote sensors; Remote 2 and

Remote 4.

When supplied from the manufacturer, all Twin Spread sensors are set up as Tw in Spread 1. If you wish to use a Twin Spread 2, your dealer (or yourself) must reconfigure the sensor using the PI Configurator application.

Communication channels and update rate

Each Twin Spread sensor will communicate on two channels, one for each of the two distances the sensor measures. By default, these communication channels are set to 02 and 07.

• Channel 02 is used to measure the distance to Remote 1.

• Channel 07 is used to measure the distance to Remote 3.

By default, both communication channels are set up with Fast update rate. In order to increase the lifetime between each sensor charging, you may consider changing to Normal update rate.

If you wish to reconfigure the settings, your dealer (or yourself) must use the PI Configurator application.

Placing the sensors on the trawl

The Twin Spread sensor must be mounted on the port trawl door, and the three communication transducers on the sensor must not be obstructed. Ensure that you have a clear line of sight between the tip of the Twin Spread sensor and the vessel, and between the Twin Spread sensor and the two Remote sensors.

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Remote 1 is placed on the centre clump. Remote 3 is placed on the starboard door.

Simrad PI32

This configuration will allow the Twin Spread sensor to measure the distance from the port door to the centre clump directly. It will also measure the distance between the two trawl doors. In order to calculate the distance between the centre clump and the starboard door, you must perform the required settings on the PI32.

(P) = Port trawl (S) = Starboard trawl (C) = Port trawl door with the Twin Spread 1 sensor mounted. (D) = Centre clump with Remote 1 mounted. (E) = Starboard trawl door with R emote 3 mounted. (F) = Forward (1) = Distance between port trawl door and centre clump,

measured direcly by the Twin Spread sensor. (2) = Distance between the centre clump and the starboard

trawl door, must be calculated by the PI32 system.

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Operational procedures

Sensor setup

Observe the procedure below to set up a Twin Spread configuration with its default settings.

In this procedure, sensors 1 and 2 are used, and no other sensors are shown. Due to the fact that the Twin Spread sensor occupy two communication channels, the setup program requires that it is configured as if it was two separate sensors, but not necessarily sensors 1 and 2. The remaining four channels can be used for other sensors.

We strongly suggest that you use the forms in the front of this manual to write down the sensor you have with information about their update rates and communication channels.

1 Press the MENU button to open the main menu. 2 Open the Setup menu (4), and select Sensor setup (5). 3 Press the ENT key to bypass the warning page. 4 To configure the Twin Spread sensor, enter the following

parameters:

a Set Sensor 1 type to SINGLE to activate the sensor.

b Set Update 1 rate to FAST.

c Set Measure 1 to SPREAD.

d Set Channel to 02.

e Set Sensor 2 type to SINGLE to activate the sensor.

f Set Update 2 rate to FAST.

g Set Measure 2 to SPREAD.

h Set Channel to 07. 5 For operational use, make sure that Demo mode is set to

OFF. 6 When you have defined the sensors, press the ENT

buttom to save the changes and exit.

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Simrad PI32

According to the sensor locations previously described, Spread 1 will now measure the distance from the port trawl door to the centre clump, while Spread 2 will measure the distance from the port trawl door to the starboard trawl door.

Readout adjustments

It is necessary to set certain parameters in order to have the PI32 to calculate the distance from the centre clump to the starboard trawl door.

GAIN- GAIN+

Headrope sensor: Footrope sensor: Trawl opening mode: Manual trawl marker: Clump sensor: Door sensor: Trawl data in additional info: Type of trawl data:

MENU Exit

Trawl info

SPREAD 1 SPREAD 2

SPREAD

(CD11105C)

1 Press the MENU button to open the main menu. 2 Press the WIN button to select a full screen presentation. 3 Open the Fishery menu, and select a Graphic display. 4 Press the ADJ button to open the Graphic setup. 5 Press the PAGE+ button three -3- times to access the

Trawl info dialoge. 6 Locate the Clump sensor setting, select SPREAD 1.

- As previously defined and described, sensor Spread 1 measures the distance between the port trawl door and the centre clump.

7 Locate the Door sensor setting, select SPREAD 2.

- As previously defined and described, sensor Spread 2 measures the distance between the port and the starboard trawl doors. This setting allows the PI32 to calculate the distance between the clump and the starboard trawl door.

8 Locate Trawl data in additional info, select ON.

9 Locate Type of trawl data, select SPREAD. 10 Press the ENT button to save the settings and exit.

Readouts

Following the configuration and readout adjustments explained, the following readouts are now available in the Graphic display.

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Operational procedures

• Numeric display: Rectangle S1 shows the distance between the port trawl door and the centre clump. Rectangle S2 shows the distance between the port trawl door and the starboard trawl door.

• Additional information: The information bar directly below the numeric rectangles displays the abbreviation TS and a value. This value represents the distance between the centre clump and the starboard trawl door.

Related topics

→ Twin Spread, page 128 → Sensor setup, page 179 → Trawl info, page 182

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Simrad PI32

How to access graphic display parameters

The various parameters defining the Graphic display presentation are controlled from the following dialogues:

• Graphic setup

• Numeric setup

• Trawl info

How to use the most common parameters are explained in separate procedures.

Access to Graphic setup

1 Make sure that you have a Graphic display presentation in

your active window.

2 Press the ENT button to open the Graphic setup

dialogue.

Access to Trawl info

1 Make sure that you have a Graphic display presentation in

your active window.

2 Press the ENT button to open the Graphic setup

dialogue. The Trawl info parameters are located at the bottom of this setup page.

Access to Numeric setup

1 Make sure that you have a Numeric display presentation in

your active window.

2 Press the ENT button to open the Numeric setup

dialogue.

Related topics

→ Graphic setup, page 160 → Numeric setup, page 169 → Trawl info setup, page 182

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Operational procedures

Howtoviewechosounderdata

When you have chosen the Graphic display presentation, you can choose to superimpose the information from the echo sounder. This feature allows you to see where your sensors are located in relation to the bottom and fish echoes. Note that this feature will only work if you have mounted an echo sounder transducer to the PI32.

1 Make sure that a Graphic display presentation is active. 2 Press the ENT button to open the Graphic setup

dialogue.

3 Locate the setting Superimpose echo sounder, and set the

option to ON.

4 Press the ENT button to save the setting and close the

dialogue.

Related topics

→ Graphic setup, page 160

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Simrad PI32

How to set up marker lines

When you have chosen the Graphic display presentation, you can choose to superimpose the information from the echo sounder, and then add marker lines to see where your sensors are located in relation to the bottom and fish echoes. Note that the echo sounder data will only appear if you have mounted an echo sounder transducer to the PI32.

The following parameters will affect the way the marker lines are displayed:

• Width - you can select how thick (in pixels) each marker line shall be.

• Delay - The echo sounder information is provided by the transducer, and this transducer is located under the vessel. The sensors are located on the gear, which may be positioned several hundred meters behind the vessel. To adjust for this delay, you can enter a value for Marker line delay.Youmust calculate this value (in minutes) based on the vessel’s speed, the wire length and the depth of the gear.

Alternatively, you can use the built-in Trawl caluclator to find the correct delay.

• Colour - The colour of the marker line is automatically set to the current Numeric display background colour for the same sensor. To change that colour, you must access the Display colour setup page from the Setup menu.

(A) = Numeric depth display (B) = Marker line fr om Depth sensor

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Operational procedures

Access to the marker line parameters

1 Make sure that a Graphic display presentation is active. 2 Press the ENT button to open the Graphic setup

dialogue.

3 The Marker line parameter allows you to switch the

marker line on or off for sensors S1, S2 and S3.

Depth and Height marker lines

The purpose of these marker lines is to provide an easy way to monitor the depth of the gear. The Height sensor measures the distance from the seabed and up to the sensor, while the Depth sensor measures the distance from the sea surface and down to the sensor.

1 Identify which of the sensors that are the Depth and/or

Height sensors.

2 Set the applicable marker line(s) to ON. 3 Enter the preferred settings for Marker line thickness

and Marker line delay.

4 Press ENT to save the settings and exit to the graphic

display presentation.

The Depth and Height marker lines are presented on the Graphic display with continuous lines in the same background colour as in the Numeric display. To read the depth, consult the depth range on the right side of the display, or the readout in the Numeric display.

Spread marker line

The purpose of this marker line is to provide an easy way to monitor the distance between the trawl doors.

1 Identify which of the sensors that is the Spread sensor. 2 Set the marker line to ON. 3 Enter the preferred settings for Marker line thickness

and Marker line delay.

4 Press ENT to save the settings and return the the graphic

presentation.

The Spread marker line is presented on the Graphic display with a continuous line. The colour of the line is the same as the background colour in the numeric presentation. To read the distance between the trawl doors, consult the depth range on the right side of the display, or the readout in the Numeric display. If the trawl door distance is reduced or increased, this will be easily detected as the marker line moves up or down. Note that you do not monitor the depth of the trawl doors even though you use the depth scale, the scale is used as a range scale.

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Simrad PI32

Surface temperature marker line

The purpose of this marker line is to provide an easy way to monitor the surface temperature. Note that this is NOT a reading from a temperature sensor, but from a feeler. Such feelers are often built into the echo sounder transducers.

1 Ensure that a proper feeler is connected to the PI32. 2 Set the marker line to On. 3 Enter the preferred settings for Marker line thickness

and Marker line delay.

4 Locate the Temperature scale parameter, and switch it

ON.

5 Press ENT to save the settings and exit to the graphic

display presentation.

The Temperature marker line is presented on the Graphic display as a continuous line.

Related topics

→ Graphic setup, page 160

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Operational procedures

Special f eatures for trawl marker lines

When you have chosen a graphic presentation, you can choose to superimpose the information from the echo sounder, and then add marker lines to see where your sensors are located in relation to the bottom and fish echoes. When you use a pelagic or bottom trawl, the PI32 offers certain special features to provide additional information.

(A) = Numeric depth display (B) = Headrope marker line (C) = Footrope marker line (D) = The value entered (calculated) for the Manual trawl

marker

The recommended sensor configuration to monitor the trawl opening is to use one Height or Depth sensor on the headrope, and one Depth sensor on the footrope. However, if you only use one of these sensors, place it on the headrope. The PI32 will then manually draw the trawl opening markers for you provided that you enter the typical height of the trawl opening.

The following parameters will provide the extra information related to trawl markers:

• Headrope and footrope sensors: You need to tell the PI32 which Depth and/or Height sensor(s) you have placed on the footrope and/or headrope of the trawl.

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Simrad PI32

• Trawl opening mode: This parameter decides how the trawl opening shall be recreated on the graphic presentation. If you have sufficient sensors on the trawl you must select Auto, and the the PI32 will automatically calculate the trawl opening and draw it accordingly. If you only have one sensor on the trawl opening (Depth or Height sensor on the headrope), the Manual setting will add an artificial line on the presentation. The distance from the headrope to the footrope must then be defined manually using the Manual trawl marker parameter.

Access to the parameters

1 Make sure that a graphic presentation is active. 2 Press the ENT button to open the Graphic setup

dialogue.

Set up the parameters

1 Locate the setting Headrope sensor, and choose the

sensor that you have placed on the headrope.

- If you have no Depth or Height sensors on the

headrope, leave the setting to None.

2 Locate the setting Footrope sensor, and chose the sensor

that you have placed on the footrope.

- If you have no Depth or Height sensors on the

footrope, leave t he setting to None.

3 Observe that the setting for Trawl opening mode is

automatically set to Auto or Manual.

- If you have sensors placed on both the footrope and the headrope, the PI32 will be able to calculate the trawl opening automatically, and the mode is set to Auto.

- If you have only one sensor, you will need to enter a manual trawl marker.

4 If you have only one sensor, enter a value for Manual

trawl marker.

- This value must represent the actual height of your trawl opening, based on your knowledge about your gear. The information will be used by the PI32 to draw a second trawl marker line.

Related topics

→ Graphic setup, page 160

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Operational procedures

How to access echo sounder parameters

The built-in echo sounder is easily controlled from separate dialogues.

• The Echo presentation setup dialogue controls the visual

parameters, such as Range, Gain, White line and Expansion window.

• The Echosounder setup dialogue controls the operational

parameters, such as alarms, sound velocity and transducer selection.

How to find the most common parameters are explained in separate procedures. The parameters are described in detail in the References chapter.

Echo presentation setup

1 Make sure thast you have an echo sounder presentation in

view.

2 Press the ENT button to open the Presentation setup.

Echosounder setup

1 Press the MENU button to open the main menu. 2 Select Echo 3 On the Echo menu, select Echo sounder setup.

Related topics

→ Echo presentation setup, page 154 → Echosounder setup, page 157

857-164636 / Rev.A

Simrad PI32

How to use visual aids and filters

When you use the echo sounder, several visual aids and filters are available to make the echoes easier to read and interpret.

Ping to ping filter

This function employs a filter which compares the echo information from one ping with the information from the previous ping. This will “clean up” the echogram by removing random noise spikes and interference with no correlation with the previous echo. The function will thus make the echoes appear more stable. You can switch this filter on or off.

1 Make sure that your echo sounder presentation is active. 2 Press the ENT button to open setup dialogue. 3 Locate the Ping to ping filter parameter. Set it to ON.

Colour threshold

This function allows you to choose the number of colours to use for echogram presentation. By switching this filter on and selecting a colour in the box, all echo colours “below” the chosen colour will not be shown in the echogram. You can thus regard this as an “echo threshold” which will remove the weakest echoes.

1 Make sure that your echo sounder presentation is active. 2 Press the ENT button to open setup page 3 Locate the Colour threshold parameter. Set it to ON. 4 Select preferred colour in the box.

Signal threshold

This is an on/off f unction. When activated, it will remove the weakest echoes from the screen. The threshold level is automatic. Activate with caution, as it may remove small fish or other weak unidentified echoes from the presentation.

1 Make sure that your echo sounder presentation is active. 2 Press the ENT button to open setup page 3 Locate the Signal threshold parameter. Set it to ON.

Depth grid

When this function is enabled, thin horisontal depth lines will be added to the echogram to easier identify the depth intervals.

1 Make sure that your echo sounder presentation is active. 2 Press the ENT button to open setup page 3 Locate the Depth grid parameter. Set it to ON.

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Operational procedures

Scroll speed

This function controls how fast the presentation shall scroll from right to left across the display. By defining this speed you also control the time scale. If you slow down the scroll speed, you will also increase the time between each echo sounder transmission (ping). If you choose FREEZE the presentation (and also the echo sounder transmissions) will stop altogether.

1 Make sure that your echo sounder presentation is active. 2 Press the ENT button to open setup page 3 Locate the Scroll speed parameter. Set it to your preferred

value.

White line

When enabled, a band in the current echogram background colour is inserted immediately below the detected bottom depth.

1 Make sure that your echo sounder presentation is active. 2 Press the ENT button to open setup page 3 Locate the White line parameter. Set it to ON.

Background colour

You can choose which background colour to use on the echogram presentation.

1 Press the MENU button to open the main menu. 2 Select the Setup menu. 3 Select Display colour. 4 Observe the first palette page appear. It contains fixed

colours, which can not be altered. Press the + button repeatedly until you reach a custom page.

5 Locate the Echogram background, and make the

required changes.

6 Press the ENT button to save the changes and exit the

setup page.

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Related topics

→ Presentation setup, page 154 → Display colour, page 172

Simrad PI32

How to define echo sounder range

There are two parameters for range:

• Range start: This is the upper depth from which the echo

sounder will provide its presentation.

• Range: This is the vertical depth range for the echo sounder. ThePI32alsooffersaPhased range function, where the Range

is fixed, but the Range start is modified. The two parameters in question are located at the top of the

parameter list. The Range and Range start parameters can be manually

controlled from the Presentation setup dialogue. The Range start is a fixed value. It is normally set to 0 meters, and if you wish to use another value, you must define this manually in the Presentation setup dialogue.

Standard mode

1 Make sure thast you have an echo sounder presentation in

view.

2 Press the ENT button to open the Presentation setup. 3 Locate the Range start and Range parameters. 4 Set Range start to 0 meters, and Range to a suitable

value depending on the current depth (or select Auto).

5 Press the ENT button to close the dialogue, save the new

settings, and return to the echo sounder view.

When you reach the upper and lower range limits, the echo sounder will automatically shift to Auto range.

Phased range mode

In this mode, the Range start is variable, and the Range is fixed.

1 Make sure thast you have an echo sounder presentation in

view.

2 Press the ENT button to open the Presentation setup.

3 Locate the Range start and Range parameters. 4 Set Range start to a suitable depth, and Range to a

suitable value depending on the current depth (or select

Auto).

5 Press the ENT button to close the dialogue, save the new

settings, and return to the echo sounder view.

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Operational procedures

You will see that different ranges are used, but the value for the

Range start is always added. For example, if you set the Range start to 30 meters, and then select the 250 meters range, the

total range achieved is from 30 to 280 meters. The upper 30 meters are however not shown in the echogram.

Related topics

→ Echo presentation setup, page 154

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Simrad PI32

How to zoom in on bottom echoes

The Bottom Expansion functions allows you to zoom in on the echoes closest to the bottom.

When this function is active, the echo sounder presentation is split in two. The upper part is the ordinary presentation, while the lower part shows the echoes just above the bottom. The bottom appears to be flat, but this may not be the case, as the zoomed area is related to the bottom.

Activate Bottom Expansion

1 Make sure that your echo sounder presentation is active. 2 Press the MENU button to open the main menu. 3 Open the Echo menu. 4 Select Bottom expansion.

If your current window was not an echo sounder, you have now closed it, and replaced it with an echo sounder with bottom expansion. If you also have a second page with an echo sounder enabled, you need to enable the expansion mode for the second page separately.

Change the range in the expansion window

1 Press the ENT button to open the Presentation setup. 2 Locate the Expansion window setting, and change to a

new value.

3 Press the ENT button save the setting and return to the

echo sounder view.

De-activate BottomExpansion

1 Press the MENU button to open the main menu. 2 Open the Echo menu. 3 Select Echo display.

Related topics

→ Echo presentation setup, page 154

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Operational procedures

How to zoom in on pelagic echoes

The VRM Expansion functions allows you to zoom in on echoes in the water column.

When this function is active, the echo sounder presentation is split in two. The upper part is the ordinary presentation, while the lower part shows the expansion window with the echoes over and under a reference depth.

Activate VRM Expansion

1 Make sure that your echo sounder presentation is in view. 2 Press the MENU button to open the main menu. 3 Open the Echo menu. 4 Select VRM expansion.

If your current window was not an echo sounder, you have now closed it, and replaced it with an echo sounder with VRM expansion. If you have an additional echo sounder page you will need to enable the expansion mode for that page separately.

Change the reference depth

1 Press “up” and “down” on the Selector pad to change the

reference depth.

The depth you select will be stored by the echo sounder. The next time you activate the VRM expansion mode, it will autmatically use this reference value.

Change the range in the expansion window

1 Press the ENT button to open the Presentation setup. 2 Locate the Expansion window setting, and change to a

new value.

3 Press the ENT button save the setting and return to the

echo sounder view.

De-activate VRM Expansion

1 Press the MENU button to open the main menu. 2 Open the Echo menu. 3 Select Echo display.

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Related topics

→ Echo presentation setup, page 154

Simrad PI32

How to enable A-Scope presentation

The A-Scope presentation provides the echo from the latest ping only. The strength of the returned signal from various depths in the water column are indicated by the horizontal deflections from the Y-axis. This presentation is very useful if you wish to search for single fish, as those echoes are hard to see on the regular echogram. Also, the presentation will give an indication on how strong the various echoes are.

Activate A-Scope

1 Make sure that your echo sounder presentation is in view. 2 Press the MENU button to open the main menu. 3 Open the Echo menu. 4 Select Turn A-Scope on.

De-activate A-Scope

1 Press the MENU button to open the main menu. 2 Open the Echo menu. 3 Select Turn A-Scope off.

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Operational procedures

How to define alarm limits

The PI32 will provide a variety of audible and visible alarms to keep you posted when something occur.

Observe the following procedures to set up an enable the most common alarms. For more detailed information about the setup pages, refer to the References chapter.

Speed alarm

The speed alarm provides you with an audible warning if the vessel’s speed exceeds a predefined speed limit, or if the speed is lower than a predefined minimum.

1 Press the MENU button to access the main menu. 2 On the Setup menu, select Speed alarm, units &

language. 3 Move the cursor down the the Speed alarm parameters. 4 Make the necessary changes, and set each alarm to ON. 5 Press the ENT key to store the parameters and exit.

Fish alarm

The fish alarm provides you with an audible warning if fish echoes are detected by the echo sounder. You can select the alarm sensitivity (how strong the echoes need to be to trigger the alarm), and you can also define a vertical depth area to limit the monitored area.

1 Press the MENU button to access the main menu. 2 On the Echo menu, select Echo sounder setup. 3 When the page is presented, press the ENT button again to

allow editing.

4 Move the cursor down the the Alarm for fish parameter. 5 Select required strength, and set the alarm to ON. 6 Move the cursor to the next line, and select a vertical area

for the alarm by entering minimum and maximum depths.

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7 Press the ENT key to store the parameters and exit.

Depth alarm

The depth alarm provides you with an audible warning if the water depth is shallower or deeper than predefined limits.

1 Press the MENU button to access the main menu.

Simrad PI32

2 On the Echo menu, select Echo sounder setup. 3 When the page is presented, press the ENT button again to

allow editing. 4 Move the cursor down the the Depth DK alarm alarm

parameters. (DK means “depth under keel”.) 5 Select required minimum and/or maximum depths, and set

the alarms to ON. 6 Press the ENT key to store the parameters and exit.

Sensor alarms

The sensor alarms provide you with an audible and visual warning if the data from a sensor exceeds predefined limits.

1 Press the MENU button to access the main menu. 2 On the Setup menu, select Sensor alarm/calibration. 3 Select minimum and/or maximum limits for the individual

sensors, and activate each alarm separately. 4 Press the ENT key to store the parameters and exit. Note that the Catch, Rip and Bottom Contact sensors can only

provide alarms when they are activated, that is when their detector wires have been pulled tight.

Surface temperature alarm

The surface temperature alarm provide you with an audible and visual warning if the temperature exceeds predefined limits, or if it changes too fast.

1 Press the MENU button to access the main menu. 2 On the Setup menu, select Sensor alarm/calibration. 3 Select minimum and/or maximum temperature limits for

the alarms, and activate each alarm separately. 4 Enter the appropriate value for the Shear alarm,and

activate the alarm. 5 Press the ENT key to store the parameters and exit. The Shear alarm will be triggered if the temperature changes

faster per minute than the value you have entered.

Note: In order to enable these alarms, your PI32 must have the

relevant temperature feeler fitted!

Clearance alarms

The clearance alarm provide you with an audible and visual warning if a trawl or another towed object either moves too close to the bottom, or lifts too far off the bottom.

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Operational procedures

1 Verify that the echo sounder is operational. 2 Press the MENU button to access the main menu. 3 On the Setup menu, select Sensor alarm/calibration. 4 Select minimum and/or maximum distance for the alarms,

and activate each alarm separately. 5 Press the ENT key to store the parameters and exit. The clearance alarm will take the current depth reading from the

echo sounder and subtract the current depth reading from the Depth sensor. The calculated depth of the trawl or towed body is then compared to the alarm limits. Due to the distance between the vessel and the trawl, you will have ample time to make the necessary adjustments to avoid damage.

If your Depth sensor is mounted to the headrope, you must create a manual depth marker. This is made in the Trawl info dialogue.

Related topics

→ Speed setup, page 180 → Echo sounder setup, page 157 → Trawl info dialogue, page 182 → Sensor alarm setup, page 177

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Simrad PI32

How to select menu language

The menus on the PI32 can be provided in several different languages.

Observe the following procedure to select menu language. For more detailed information about the setup pages, refer to the References chapter.

1 Press the MENU button to access the main menu. 2 On the Setup menu, select Speed alarm, units &

language. 3 Move the cursor down the Display text in parameter. 4 Press the + or - buttons to select language. 5 Press the ENT button to store the parameter and exit.

Related topics

→ Page setup, page 171

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Operational procedures

How to control automatic page rotation

You can set up the PI32 to automatically leaf through the four display pages. Each page will then be shown a set time before the next page is brought up.

Observe the following procedure to set up automatic page rotation. For more detailed information about the setup pages, refer to the References chapter.

1 Press the MENU button to access the main menu. 2 On the Setup menu, select Speed alarm, units &

language. 3 Move the cursor down the WIN change interval

parameters.

4 Press the + or - buttons to select time interval. 5 Select AUTO if you wish to activate the automatic page

rotation. 6 Press the ENT button to store the parameter and exit.

Related topics

→ Page setup, page 171

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Simrad PI32

How to restore default settings

Whenever necessary you can restore the default factory settings on the PI32.

Observe the following procedure.

1 Press the MENU button to access the main menu. 2 On the Setup menu, select Master reset. 3 Press the selector pad “up”, then press it “down”. 4 Press the ENT button.

Caution: If you choose to do a master reset, you will need to

redefine every single parameter you have made on the PI32. This includes all echo sounder settings, sensor selections and setup, system interfaces and alarms.

Related topics

→ Factory presets setup, page 159

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PRACTICAL USE OF THE SENSORS

The PI32 Catch monitoring can operate with several different sensors. In the following, the most important information regarding installation and use of each sensor is described.

Both PI and PS sensors are described. The PI sensors have longer ranges, they can be “fast-charged” using the PI Charger, and they will provide some additional functionality. For all other practical purposes the two types may be regarded as identical. The PI32 system will automatically adapt to and work with both types, and you can also use PS and PI sensors together.

Topics

→ Sensor configuration, page 84 → PI Bottom Contact, page 87

Sensors

→ PS Bottom Contact, page 91 → PI Catch, page 95 → PS Catch, page 100 → PI Depth, page 104 → PS Depth, page 109 → PI Height, page 114 → PI Rip, page 118 → PI Spread & Remote, page 123 → PI Temperature, page 133 → PS Temperature, page 139

Related topics

→ How to set up the sensors, page 48 → How to test the sensors, page 223

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Simrad PI32

Sensor configuration

Communication channels and update rates

All sensors are provided from the factory with pre-defined communication channels and update rates.

Sensor Com.channel Update rate

PI Bottom Contact 6 Normal

PI Catch 4 Normal

PI Depth (300 m) 16 Fast

PI Depth (600 m) 12 Fast

PI Depth (1000 m) 10 Fast

PI Height 14 Fast

PI Spread 2 Fast

PI Twin Spread 2 and 7 Fast

PI Temperature 8 Fast

Factory default communication channels and update rates

Changing a transmission channel

It may be required to change one or more transmission channels, and there may be many reasons for this.

• You have more than one of each sensor. For example, if you

have three temperature sensors, they MUST communicate on three different channels.

• Other vessels near your use the same PI32 system (or a

similar), and they have one or more of their sensors set up to the same communication channels as you have. This will create interference, as you will “read” each others sensors.

• If your sensors are set up to use communication channels too

close to each other (for example, you have chosen channels 4, 5 and 6), this will limit the vessel’s speed. The reason for this is the doppler effect. If the speed is too high, the doppler will cause the transmission frequencies to change so much that they overlap, and this will create interference. The PI32 will provide a warning if this is about to happen! You must then either change to other communication channels further apart, or reduce the maximum shooting speed.

• If you operate at the maximum range of the sensors, you may

be able to increase this range slightly if you use lower communication channels. This is because the lower communication channels user lower transmission frequencies.

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Sensors

Changing the update rate

• A low update rate will provide you with fewer information

updates, but the battery will last very long.

• A high update rate will give you frequent information

updates, but the battery will run out faster.

How to change the sensor setup

To change the sensor setup, you can call your local Simrad dealer, or you can do it yourself if you have the proper equipment, training and the PI Configurator software.

The PI Configurator application is provided to enable local sensor configuration. In order to perform this configuration, you will need a personal computer (desktop or laptop) running Microsoft® Windows® 2000 or Windows XP®, and a special cable.

Special configuration of PI Spread

The PI Spread sensor is always used with a PI Remote sensor, and these must be configured in a pair in order to make the transverse communication link work properly. In order to allow for a dual Spread application, you can use two predefined configurations: PI Spread 1 and/or PI Spread 2.

The Remote sensors are available pre-programmed for these two pairs, and the sensors are identified as Remote 1 and Remote 2.

The two pairs must be configured as follows:

Configuration Spread sensor Remote sensor

PI Spread 1 PI Spread (*) Remote 1

PI Spread 2 PI Spread (*) Remote 2

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(*) = The same PI Spread sensor is used for both configurations. By default, it is programmed for PI Spread 1.Ifyou wish to use it for PI Spread 2, you must re--configure it using the PI Configurator application.

Simrad PI32

You can select the communication channels between the PI Spread sensors and the vessel to suit your preferences.

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Sensors

PI Bottom Contact sensor

Purpose

The PI Bottom Contact sensor detects if a trawl is accidentally lifted off the seabed, or a purse seine is touching the bottom.

(A) = The trawl follows the bottom. The detection wire on the sensor is not released. (B) = The trawl has lifted off the bottom, and the detection wire is released.

Main parts

(A) = Negative charging / fastening lug (B) = Positive charging / fastening lug (C) = Communication link (Channel 1 - 30) (D) = Location of sensor lamp (E) = Water switch sensor (F) = Detection wire (in/out) (G) = Ground weight

Daily operation

Once installed and put to use, the sensor will automatically be switched on once the waterswitch is activated. After an initial startup, the sensor starts transmission of the detector wire (F) status (in or out). When the sensor is not in use, check that the sensor lamp (D) is not flashing from time to time, as this indicaties that the sensor is on and is discharging its batteries. In this case, wash the sensor in fresh water to remove salt and dirt.

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If you operate with Fast update rate, the sensor must be charged approximately every 35 hours. Used with Normal or Slow update rates, the operational life is approximately 60 or 250 hours respectively. The optimal sensor charging temperature is from +10 to +25° C.

Simrad PI32

Note: Charging sensors at sub-zero temperatures can create explosive

gasses. Simrad AS assumes no liability for the improper charging of sensors or the use of chargers not specified in Simrad sensor charging documentation.

Bottom Contact presentation

On the PI32 display, the Bottom Contact sensor status is displayed with graphic symbols. Note that the timers count the total number of minutes the sensor has lost contact with bottom. If only predicted timer values exist, the characters are shown in grey. If the sensor communication is lost, the graphic symbol is replaced by the characters ***.* (in grey).

(A) = Sensor set up as sensor no.2. (B) = Sensor in contact with bottom.

The timer has stopped. (C) = The timer counts how many

minutes the sensor has been “lifted off” the bottom. It must be reset manually.

(D) = Indicator, lit for every sensor interrogation.

(E) = Interference symbol. (F) = Sensor set up as sensor no.3. (G) = Sensor has lost contact with

bottom. The timer starts. An audible alarm may be enabled.

(H) = The timer shows how many minutes the net has “lifted off” during a tow.

Sensor configuration

On delivery, all Bottom Contact sensors are configured in Channel 6 and with Normal update rate.

Note: The sensor and the PI32 system setup must correspond,

otherwise the communication will not work.

To change the sensor setup (channel selection, update rate etc), use the PI Configurator utility.

The sensor update rate controls how often the sensor monitors whether the gear is on of off the bottom. Three settings are available. Note that a faster update rate will decrease the battery life.

• Fast (~3,2 sec): Recommended for new trawl or gear, or

changes in rigging to monitor instabilities in ground gear bottom contact.

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Simrad PI32 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual