VideoRay Explorer User manual

August, 2014 http://www.videoray.com Version 1.0, Rev. C
Explorer
S UBMERSIBLE R EMOTELY
O PERATED V EHICLE
V

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1 INTRODUCTION ...............................................................................................................................................4
1.1 ABOUT THIS MANUAL ...............................................................................................................................4
1.2 ABOUT YOUR VIDEORAY .........................................................................................................................4
1.3 FRIENDLY ADVICE .....................................................................................................................................4
2 GENERAL INFORMATION.............................................................................................................................5
2.1 DESCRIPTION...............................................................................................................................................5
2.2 OPERATING ENVIRONMENT ....................................................................................................................5
2.3 EXPLORER SPECIFICATIONS....................................................................................................................6
3 SAFETY FIRST! .................................................................................................................................................7
3.1 USE COMMON SENSE .................................................................................................................................7
3.2 ELECTRICAL AND VIDEORAY SAFETY..................................................................................................7
3.3 PERSONAL SAFETY ....................................................................................................................................7
4 GETTING FAMILIAR WITH YOUR VIDEORAY .......................................................................................8
4.1 UNPACKING YOUR VIDEORAY................................................................................................................8
4.2 INSPECTING YOUR VIDEORAY ................................................................................................................8
4.3 PREPARING TO OPERATE YOUR VIDEORAY ........................................................................................8
5 YOUR FIRST DIVE............................................................................................................................................9
5.1 DIVE CONDITIONS ......................................................................................................................................9
5.2 SETTING UP YOUR VIDEORAY.................................................................................................................9
5.3 PRE-DIVE INSPECTION.............................................................................................................................10
5.4 LAUNCHING THE VIDEORAY .................................................................................................................10
5.5 MANEUVERING THE VIDEORAY ...........................................................................................................11
5.6 RETRIEVING THE VIDEORAY.................................................................................................................12
5.7 POST-DIVE INSPECTION ..........................................................................................................................12
6 VIDEORAY CONTROLLER FEATURES AND FUNCTIONS ..................................................................13
6.1 CONNECTORS ............................................................................................................................................13
6.1.1 TETHER CONNECTION.....................................................................................................................13
6.1.2 VIDEO .................................................................................................................................................13
6.1.3 100/240 VAC 50-60 Hz........................................................................................................................13
6.2 SWITCHES...................................................................................................................................................13
6.2.1 MAIN POWER (On | Off) ....................................................................................................................13
6.2.2 DEPTH CONTROL (Up | Down) ........................................................................................................13
6.2.3 TILT (Down | Up) ................................................................................................................................14
6.2.4 FOCUS (Out | In) ................................................................................................................................14
6.2.5 LIGHTS (Dim | Bright) ........................................................................................................................14
6.2.6 AUXILIARY (On | Off).........................................................................................................................14
6.3 LCD DISPLAY .............................................................................................................................................14
6.3.1 DEPTH GAUGE..................................................................................................................................14
6.3.2 COMPASS............................................................................................................................................14
6.4 JOYSTICK (FORWARD |LEFT |RIGHT |REVERSE) ........................................................................................15
6.4.1 JOYSTICK THIRD AXIS CONTROL...................................................................................................15
6.4.2 JOYSTICK SENSITIVITY ....................................................................................................................16
6.5 MONITOR CONTROL.................................................................................................................................16
6.5.1 POWER................................................................................................................................................16
6.5.2 SYSTEM ...............................................................................................................................................16
6.5.3 Additional non-labeled buttons on the display monitor.......................................................................16
7 “BEST” PRACTICES AND DIVING TIPS....................................................................................................17
7.1 NAVIGATION..............................................................................................................................................17

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7.2 HANDLING THE TETHER .........................................................................................................................17
7.3 AVOIDING TANGLES ................................................................................................................................19
7.4 FREEING ASNAGGED TETHER ..............................................................................................................19
7.5 BALLAST SETUP........................................................................................................................................19
7.6 INCREASING THRUSTER POWER...........................................................................................................20
7.7 LOSS OF THRUSTER POWER ...................................................................................................................20
7.8 FOGGED VIEW PORT AND/ OR LIGHT LENSES....................................................................................20
8 VIDEORAY MAINTENANCE ........................................................................................................................21
8.1 CLEANING VIDEORAY .............................................................................................................................21
8.2 INTERNAL MOISTURE DETECTION.......................................................................................................21
8.2.1 MOISTURE INDICATOR ....................................................................................................................21
8.3 MECHANICAL SERVICING ......................................................................................................................21
8.3.1 PRECAUTIONS ...................................................................................................................................21
8.3.2 REQUIRED TOOLS ............................................................................................................................21
8.4 CARING FOR SEALS AND O-RINGS........................................................................................................22
8.4.1 O-RiNG RULE OF THUMB ................................................................................................................22
8.4.2 INSPECTION.......................................................................................................................................22
8.4.3 CARE AND STORAGE ........................................................................................................................22
8.4.4 HANDLING SEALED COMPONENTS...............................................................................................22
8.5 SERVICING THE LIGHTS ..........................................................................................................................23
8.5.1 REPLACING A LIGHT BULB .............................................................................................................23
8.6 THRUSTER GUARD AND PROPELLER REMOVAL ..............................................................................23
8.6.1 VERTICAL THRUSTER GUARD ........................................................................................................23
8.6.2 PROPELLER REMOVAL / REPLACEMENT......................................................................................23
8.7 CARTRIDGE SEAL INSPECTION AND REPLACEMENT ......................................................................23
8.8 MAIN HOUSING .........................................................................................................................................24
8.8.1 OPENING VIDEORAY’S MAIN HOUSING........................................................................................24
8.8.2 REASSEMBLY OF MAIN HOUSING ..................................................................................................25
8.9 CALIBRATION............................................................................................................................................25
9 FIELD SERVICING .........................................................................................................................................27
9.1 TROUBLE SHOOTING ...............................................................................................................................27
9.1.1 LIGHTS DO NOT WORK ....................................................................................................................27
9.1.2 LOSS OF THRUST OR MANEUVERABILITY....................................................................................27
9.1.3 VIDEO MONITOR DOES NOT SHOW PICTURE .............................................................................27
9.1.4 POOR PICTURE QUALITY ................................................................................................................27
9.2 ORDERING PARTS .....................................................................................................................................28
9.3 WARRANTY REPAIRS...............................................................................................................................28
10 VIDEORAY TOOLS & SPARE PARTS KIT..........................................................................................29
11 APPENDIX A – LIMITED WARRANTY...............................................................................................30

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1INTRODUCTION
1.1 ABOUT THIS MANUAL
The purpose of this manual is to provide information only. It is subject to change without
notice and does not represent a commitment on the part of the VideoRay, or its agents.
1.2 ABOUT YOUR VIDEORAY
Prior to shipment, the VideoRay Scout was tested and found to comply with factory
standards.
The serial number of the VideoRay is labeled on the hull under the float block, and inside
the hull (visible through the rear dome). The serial number of the controller is engraved
on a plate that is attached to the front of the Controller case. Please provide your system
serial number(s) whenever corresponding with us.
1.3 FRIENDLY ADVICE
“Flying” the VideoRay can be somewhat addictive. If you are operating VideoRay and
have an important appointment later in the day, we strongly recommend you set an alarm
clock or arrange to have a friend remind you at the appointed time!
This manual Copyright © 2014VideoRay LLC All Rights Reserved.

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2GENERAL INFORMATION
2.1 DESCRIPTION
VideoRay Explorer is a submersible, Remotely Operated Vehicle (ROV) designed to take
advantage of its portability and size. Set up and vehicle control are simple and intuitive,
enabling VideoRay to be easily carried, deployed, and operated by one person. VideoRay
can go anywhere, powered from AC, or battery pack and inverter. Operation of the
VideoRay is quickly mastered after only a few practice “flights.” Connection to a video
monitor provides the operator with a view of everything the VideoRay sees.
VideoRay’s pressure housings are machined from marine grade aluminum and protected by
an anodized finish. The vehicle is equipped with a forward camera, two lights, and three
thrusters.
VideoRay carries no batteries; it is completely powered and controlled from the surface
through a small diameter tether.
The VideoRay power supply plugs into any standard grounded 100/240 Volts AC 50/60
Hz power source. For operational safety, the joystick control, vehicle and tether carry a
maximum voltage of 48 Volts DC.
2.2 OPERATING ENVIRONMENT
VideoRay ROV
Medium: Fresh or Salt Water
Operating Temperature: 32-122º F (0-50ºC)
VideoRay Power Supply / Controller
Caution: While VideoRay is designed to be operated in water, the Power Supply /
Controller is splash-resistant and should not be subject to excessive water spray or rain
when opened. The Power Supply /Controller case is watertight only when closed.

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2.3 EXPLORER SPECIFICATIONS
Depth Rating 91 m (300 feet)
Depth Gauge Calibrated in meters or feet (user selectable)
Resolution = 0.1 units (meters or feet)
Dimensions 35 cm (13 ¾ inches) long
22.2 cm (8-¾ inches) wide
21.6 cm (8-½ inches) high
Weight 3.6 kg (8 lb.)
Housing Material Anodized Aluminum (marine grade)
Input Voltage 100/240 Volts AC 50/60 Hz Power Source
Internal Voltage 48 Volts DC maximum
Lights 2 - 20 watts (1 port, 1 starboard)
Camera Tilt Angle +/- 75º Pitch (vertical rotation)
Camera Focus Range From the face of the housing dome to infinity
Tether 76 m (250 feet) Neutrally Buoyant
Minimum bend diameter = approximately 8 cm (3 inches)
Controller Integrated with power supply in Pelican Diver Case
Video Display Monitor 127mm (5 inch) LCD

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3SAFETY FIRST!
The following are some safety tips that may prevent injury to you as the operator and those
around you, or damage to the VideoRay submersible.
3.1 USE COMMON SENSE
These first instructions appeal to common sense:
1) Read the safety and operating instructions before operating the VideoRay.
2) Retain this manual and other safety and operating instructions for future reference.
3) Heed all warnings printed on the system components and in the manual.
4) Follow the operating and maintenance instructions.
5) Be aware of and alert to potential hazards in and around water, including weather
conditions, and follow standard water safety practices.
3.2 ELECTRICAL AND VIDEORAY SAFETY
1) Protect the Power Supply / Controller from splashes and immersion in water when
open. The controller is sealed when closed, and splash resistant when open.
2) Always plug the system into a grounded receptacle.
3) There are No User Serviceable Parts Inside the power supply. Only qualified
technicians or VideoRay personnel should perform electrical servicing.
4) Do not subject the VideoRay to impact. The camera, lights, and electronic components
may be damaged by an impact.
5) Never operate the lights for more than 60 seconds out of water. Never operate the
thrusters for more than 20 seconds out of water. Your VideoRay is designed for
submerged operation and requires water to cool the lights and thrusters.
6) Do not stress or kink the tether or bend it tighter than the minimum bend diameter,
which is about 3 inches. Do not allow the tether to be deployed over sharp edges or
rough surfaces.
3.3 PERSONAL SAFETY
Be aware of the safety of those around you!
1) Beware of swimmers or boaters. The VideoRay and tether can pose a hazard to
swimmers, divers, and small craft, as well as persons in and around the operating area.
Obtain the acknowledgment of those around you prior to launch. Make sure everyone
within VideoRay’s range of operation is aware the vehicle is being deployed.
2) Keep your operating area neat and free of accident causing clutter.
3) Keep fingers and objects clear of the thruster propellers.

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4GETTING FAMILIAR WITH YOUR VIDEORAY
4.1 UNPACKING YOUR VIDEORAY
Your VideoRay Remotely Operated Video Inspection Submersible is packaged and
shipped in two rugged Pelican Diver Cases. These cases have O-rings and are sealed
against water when closed. The smaller case integrates the power supply, controller, and
video display monitor. The larger wheeled case contains the VideoRay ROV and 76
meters (250 feet) of tether.
Upon receiving your VideoRay, check the containers and contents for any damage that may
have occurred during transport.
4.2 INSPECTING YOUR VIDEORAY
In the shipping crates you should find these components:
1) Fully assembled VideoRay ROV with 76 meters (250 feet) of tether
2) Integrated Power Supply / Controller
3) Maintenance Tools and Spare Parts Kit
4) Video Display Monitor (mounted in the cover of the controller case)
5) This Owner's Manual
Should any of these components be missing or damaged, please notify the selling agency.
4.3 PREPARING TO OPERATE YOUR VIDEORAY
Operating your VideoRay controller is like being in the driver’s seat of your car. The
joystick and switches are used to control your VideoRay ROV, similar to the way you use
the steering wheel, pedals and dashboard knobs to control your car’s operation. The
controller’s LCD display provides feedback like your dashboard gauges do.
Before setting up and operating your VideoRay, we ask that you read all safety precautions
in Section 3. The fundamentals of operation can be found in Section 5. Detailed
descriptions of all of the features and functions can be found in Section 6. Section 7
provides advanced handling instructions and tips. Sections 8 and 9 cover maintenance
and troubleshooting.
Take a moment now to familiarize yourself with the VideoRay ROV, the controller’s
layout and the feel of the controls. Proper operation, maintenance and safe handling of
your VideoRay will provide you with many hours of enjoyment of the underwater views.

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5YOUR FIRST DIVE
Your VideoRay ROV has been designed with ease of use in mind. This section covers
only the most basic aspects of operating your VideoRay. It will walk you through the steps
required to make your first dive. Section 6 contains a complete reference to all of the
features and functions of your VideoRay.
Note: If the Safety Instructions have not been read, it is recommended you do so before
operating your VideoRay.
5.1 DIVE CONDITIONS
Your first dive should be made in conditions that are suitable for learning. The following
conditions are optimal:
•Slow water current
•Low wind speed
•Clear water
•No obstructions above or below the surface
While VideoRay can be used in less than optimal conditions, including some rather
extreme conditions, it is best to gain some experience before attempting such challenges. If
the conditions are too adverse, it may be wise to postpone your dive or find a more suitable
dive location.
Until you feel comfortable operating your VideoRay, you should try to operate it within a
close range.
5.2 SETTING UP YOUR VIDEORAY
The following procedures outline the steps required to prepare the VideoRay for operation.
1) Open the Power Supply / Controller box and make sure the Main Power switch is set to
the “Off” position.
2) Unpack the VideoRay and tether. Be careful not to kink the tether. See Section 7.2 for
proper tether handling techniques and cautions.
3) Connect the surface end of the tether directly to the controller. Connect the VideoRay
ROV end of the tether to the VideoRay ROV. The connectors are different and cannot
be accidentally reversed.
4) Plug the power cord into an appropriate Alternating Current (AC) power source.
5) You may need to adjust the ballast depending upon dive conditions and the activities
you intend to perform. See Section 7.5 for more information on adjusting the ballast.
Once the system is connected together, a Pre-Dive Inspection should be made.

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5.3 PRE-DIVE INSPECTION
A Pre-dive check should to be carried out prior to every dive.
1) Visually inspect the vehicle to ensure that the propellers are free of tangles and that the
vehicle is in operational condition. Check the propeller guards for damage and / or
misalignment.
2) Check the tether for scrapes, nicks or other visible damage.
3) Ensure that all fasteners are in place and secure.
4) Ensure that the VideoRay has been properly ballasted for the water conditions in which
you plan to dive, and that the ballast is secure. The VideoRay comes from the factory
ballasted for fresh water although water properties may vary locally and cause a need
for re-ballasting the VideoRay. See Section 7.5 for information on Ballast Setup.
5) Ensure that all cables are properly connected and the tether connectors are screwed
together to avoid separation and loss of the VideoRay ROV.
6) Power up the system by engaging the Main Power switch to the “On” position. The
monitor should automatically power up, but if it does not, there is a power button on the
monitor that may need to be pressed.
7) Using the joystick, displace it in all directions to test the port and starboard thrusters.
CAUTION! Do not operate the thrusters for more that 20 seconds when the VideoRay
ROV is out of the water. Prolonged operation in a dry environment will result in
damage to motor shaft seals.
8) Using the Depth Control knob, rotate it to test the vertical thruster. Return the knob to
the neutral position.
9) Verify that both lights are working by rotating the joystick toward “Bright”, and then
returning the knob to the “Dim” position.
CAUTION! Do not operate the lights for more than 60 seconds when the VideoRay
ROV is out of the water. Doing so may cause overheating and damage the unit.
10) Test the camera tilt and focus functions. The Tilt and Focus switches are spring-loaded
momentary contact type switches and will return to the neutral position when pressure
is released. All switches, except the Main Power switch, work in this way.
11) Check the camera and monitor operation. If you are using a VCR, check that the
recording and playback functions are operational.
12) Power down the system until you are ready to launch the VideoRay.
5.4 LAUNCHING THE VIDEORAY
CAUTION! Be certain that the tether connectors are securely connected and screwed
together to avoid separation and loss of the VideoRay ROV.
1) Power up the VideoRay.

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2) The tether should be neatly coiled and made ready to deploy. It must be free of tangles,
knots, and other obstructions.
3) Inform swimmers, divers, boaters and others in the area that you are about to deploy the
VideoRay and that a tether that will be in the water as well.
4) Avoid dropping or throwing the VideoRay into the water. Rather, use the tether to
lower the VideoRay to the water surface. This method will prevent potential of impact
of the VideoRay against the pier or vessel from which you are launching.
5.5 MANEUVERING THE VIDEORAY
VideoRay is relatively easy to fly... and fun! Initially, a new operator should spend a few
minutes controlling the VideoRay within sight near the surface in order to become familiar
with VideoRay's reaction to its controls.
Flying the VideoRay in open water is not difficult and is quickly mastered. Operating the
VideoRay in and around obstacles such as boats, pilings, and anchor lines will require a
little more practice. In these conditions, it is advisable to go slow and consider the possible
effects of any maneuvers.
Basic VideoRay operating instructions:
1) The operation of VideoRay is intuitive and simple. The joystick controls variable
speed forward and reverse thrust. Push the joystick forward to move VideoRay
forward. Pull the joystick back to back up.
2) Steering VideoRay is accomplished by moving the joystick left or right. Additionally,
the joystick rotates (third axis control) to enhance control capabilities, but it is not
necessary to use these capabilities on your first dive. See Section 6 for more details
about the third axis control.
3) The Depth Control knob on the left-hand side of the controller controls the vertical
thruster. Rotating the knob from the center detent position controls the depth of the
dive. Rotating the knob toward “Down” increases the depth. Rotating the knob
toward “Up” causes the VideoRay to move toward the surface. VideoRay should be
ballasted to always float upwards slowly, so continuous downward thrust is necessary
to dive or to maintain a constant depth. When using Automatic Depth Control, the
default mode, the controller will maintain a constant depth for you. See Section 6.2.2
for more information about using Auto Depth Control and manual depth control.
Note: Inadequate ballast will cause VideoRay to float high in the water. When this
happens the vertical thruster may not be sufficiently submerged to provide adequate
downward thrust, and a rather impressive "water fountain" effect will result. Add
more weight to the ballast if this is a problem. See Section 7.5 for tips on proper
adjusting the ballast.
4) The camera may be tilted up or down by engaging the Tilt “Up” / “Down” switch in
the desired direction. Releasing the switch causes the camera to hold its orientation.

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5) To focus the camera, engage the Focus ‘In’ / ‘Out’ switch in the desired direction
until the optimal focus is achieved. Releasing the switch causes the camera to hold its
focus.
6) The intensity of the lights may be adjusted by turning the Lights knob.
Relax and enjoy your dive. Whatever you do, DON'T PANIC.... In the event of a
problem, or if the tether appears to have become snagged on an obstacle, the best course
of action is to stop and calmly assess the situation. A way out may present itself. Should
you experience any problems, see Sections 7 and 9 for tips and troubleshooting.
5.6 RETRIEVING THE VIDEORAY
1) Ensure the tether is free from obstacles on which it may become caught or entangled in
the water.
2) Navigate the VideoRay to a retrieval area where the water surface is clear of obstacles.
3) Power down the VideoRay by switching off the main power supply.
4) Retrieve the VideoRay by pulling it out of the water by its tether. Care should be taken
to coil the tether properly (see Section 7.2) and avoid collisions between VideoRay and
the pier or boat hull.
5) Once the VideoRay is retrieved, perform a Post-Dive Inspection as described below.
5.7 POST-DIVE INSPECTION
A Post-Dive inspection should be carried out after every dive.
1) Make sure the power is off.
2) Unplug the connections.
3) Return the video display monitor to its storage position by loosening the locking
knob and rotating the monitor so the screen faces toward the inside of the cover
and away from you.
4) The vehicle should be visually inspected following each dive to ensure that no
mechanical damage has occurred.
5) Visually check through the ports to ensure that no water has entered the pressure
housings.
6) Check that the propeller shafts have not been fouled with material such as fishing line,
string, seaweed, or other debris.
7) If VideoRay has been used in salt water, thoroughly rinse the vehicle with fresh
water prior to being stored away. Turn the vehicle upside down while rinsing to
let water drain from the pressure sensor cavity under the float block.
8) Inspect the tether for cuts, nicks and / or kinks in the outer shell. Store the tether
properly for the next use.
9) Store all components securely.

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6VIDEORAY CONTROLLER FEATURES AND FUNCTIONS
6.1 CONNECTORS
6.1.1 TETHER CONNECTION
This connector is used to couple the Controller to the VideoRay ROV using the supplied
tether.
6.1.2 VIDEO
This composite video out connector should be used with the supplied video cable and
monitor. This composite video output can also be used to connect to an external monitor
(not supplied) or a recording device (not supplied), such as a VCR, to display or record
images captured by the VideoRay onboard camera. When using external video display
and recording devices, you will need additional cables (not supplied) to connect the
composite video out to these devices.
6.1.3 100/240 VAC 50-60 Hz
This is the source feed for the Controller’s power. For maximum portability, the
VideoRay can be run from several common power sources. The AC power cord plugs into
any 100 or 240 VAC outlet. An external battery using an inverter may also be used to
power the VideoRay.
6.2 SWITCHES
6.2.1 MAIN POWER (On | Off)
This switch activates the controller. It should remain in the “Off” position when not
using your VideoRay or when the system is unattended.
6.2.2 DEPTH CONTROL (Up | Down)
A Depth Control knob on the left-hand side of the controller controls the vertical thruster.
Rotating the knob from the center detent position controls the depth of dive. Rotating the
knob toward “Down” increases the depth. Rotating the knob toward “Up” causes the
VideoRay to move toward the surface. VideoRay should be ballasted to always float
upwards, so continuous downward thrust is necessary to dive or to maintain a constant
depth. When using Automatic Depth Control, the default mode, the controller will
maintain a constant depth for you.
Automatic Depth Control
Automatic Depth Control (Autodepth) will automatically engage each time the unit is
turned on. When Autodepth is on and the Depth Control knob is centered, the thruster
will attempt to maintain a constant depth. Rotating the Depth Control knob will cause the
VideoRay to rise or dive to a new depth. Centering the knob again will then maintain the
new depth.
To cancel the Autodepth function, engage and hold the Auxiliary switch to the “Off”
position for at least one (1) second. With Autodepth off, the Depth Control knob directly

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and proportionally controls the amount of vertical thruster "up" or "down" power. When
the knob is centered, there will be no thrust and the VideoRay will rise or sink depending
up on the ballast setting and the presence of any vertical water currents.
6.2.3 TILT (Down | Up)
The camera may be tilted up and down by engaging the Tilt “Up” / “Down” switch in the
desired direction. Releasing the switch causes the camera to hold its orientation. The
Tilt switch is also used to calibrate the compass and depth gauge. See Section 8.7 for
instructions on calibration.
6.2.4 FOCUS (Out | In)
To focus the camera, engage the Focus ‘In’ / ‘Out’ switch in the desired direction until
the optimal focus is achieved. Releasing the switch causes the camera to hold its focus.
6.2.5 LIGHTS (Dim | Bright)
The Lights knob controls the brightness of VideoRay’s on-board lights. When rotated to
the “Dim” position, the lights will not go out, but will glow slightly. Do not set the lights
to “Bright” for more than 20 seconds when the VideoRay is out of the water.
6.2.6 AUXILIARY (On | Off)
This switch is used to change between various Controller modes. It controls:
•Automatic Depth Control (Section 6.2.2)
•Depth Display Units (Section 6.3.1)
•Joystick Third Axis Control (Section 6.4.2)
6.3 LCD DISPLAY
The LCD display is used to provide feedback to the operator. Display information
includes depth, units of depth and heading. The LCD also provides messages for
configuration and calibration operations.
6.3.1 DEPTH GAUGE
Depth is displayed in feet or meters by the digital readout on the LCD display. To switch
the display units, engage the Tilt switch to “Down” while powering up the system. After
the system powers up, release the Tilt switch. To set the units to feet engage the Focus
switch to “Out.” To set the units to meters, engage the focus switch to “In.” After
selecting the units, the system will be in calibration mode. If you do not want to calibrate
the compass or depth gauge at this point, turn off the system. The VideoRay will
“remember” the last units used and continue to power up in that mode until changed by
the operator. Depth calibration is set at the factory for fresh water. See Section 8.9 for
instructions on calibrating the Depth Gauge.
6.3.2 COMPASS
VideoRay is equipped with an internal compass to aid in navigation. The compass rose is
presented on the LCD display and is marked with North, South, East, and West

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directions. The compass is calibrated at the factory, but can be re-calibrated as needed.
See Section 8.7 for instructions on calibrating the Compass.
6.4 JOYSTICK (Forward | Left | Right | Reverse)
The joystick controls variable speed forward and reverse thrust. Push the joystick
forward to move VideoRay forward. Pull the joystick back to back up. Steering
VideoRay is accomplished by moving the joystick left or right. Additionally, the joystick
rotates (third axis control) to enhance control capabilities.
6.4.1 JOYSTICK THIRD AXIS CONTROL
The VideoRay Explorer joystick incorporates an additional operating technique that
greatly increases the user’s ability to control the VideoRay. The joystick has a "third
axis" of operation. In addition to moving both forward and back (first axis) and side to
side (second axis,) the knob will rotate either clockwise or counterclockwise (third axis).
A unique and extremely valuable characteristic of the VideoRay Explorer is the “user
selectable” mode of the third axis control. The third axis mode can be set for any one of
the following functions:
1) No function – In this mode, the third axis does not perform any function. This is the
default mode when the VideoRay is powered on.
2) Depth Control Mode - rotating the joystick clockwise causes the VideoRay to dive,
rotating counterclockwise causes it to rise. The rate of depth change is proportional
to the amount the knob is rotated. In this mode, the joystick knob takes the place of
the Depth Control knob, though the Depth Control knob does not return to center with
a spring the way the joystick does.
3) Tilt Mode - rotating the knob counterclockwise tilts the camera up, clockwise tilts it
down. This takes the place of the Tilt switch, and is therefore not proportional. In
other words, rotating the joystick more will not cause the camera to tilt faster.
4) Focus Mode - rotating the knob counterclockwise focuses the camera in, clockwise
focuses it out. This takes the place of the Focus switch, and is therefore not
proportional.
5) Lights Mode - rotating the knob counterclockwise decreases the brightness of the
lights, rotating counterclockwise increases the brightness. The amount the knob is
rotated determines the rate of change - when centered the brightness level is held
constant.
To change the mode of the third axis, momentarily engage the "Auxiliary" switch to
“On.” Note that the mode cycles from “No Function” through the four remaining
functions in the order they are listed above and the order they appear from left to right on
the controller panel.

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6.4.2 JOYSTICK SENSITIVITY
VideoRay features two settings for joystick sensitivity – “Normal” mode and “Fine”
mode. The LCD display will tell you which mode you are in:
•Normal Mode: This mode spreads the range of power evenly over the deflection
range of the joystick, and is used when current is strong or the VideoRay must move
more rapidly.
•Fine Mode: This mode has lower power for the majority of the joystick deflection
area, but still allows the VideoRay to achieve full power for full deflection in each
direction. Use this mode when you need to more precise control in low current
situations, where full power is rarely needed.
The joystick sensitivity setting remains constant until the operator decides to change it.
To change the joystick sensitivity to Fine mode, rotate the joystick counterclockwise
while engaging the Auxiliary switch to the “On” position. To change to Normal mode,
rotate the joystick clockwise while engaging the Auxiliary switch to the “On” position.
Note: While there may appear to be some overlap in using the Auxiliary switch for both
third axis function selection and sensitivity, these operations can be performed
independently. If the joystick is rotated while the Auxiliary switch is engaged, the third
axis mode will NOT change. This allows the joystick sensitivity to be changed without
affecting the third axis.
6.5 MONITOR CONTROL
6.5.1 POWER
The monitor powers up automatically when the controller is turned on. The monitor
Power button can be used to turn off the video display while the controller is on.
Pressing the Power button again will turn the monitor on.
6.5.2 SYSTEM
The System button on the monitor is used to determine the video format (NTSC or PAL).
Normally, the format will be set at the factory and should not need to be changed. If the
monitor is not displaying the video image properly, this button might have been
accidentally bumped. In this case, you can restore the correct display format by pressing
the System button.
6.5.3 Additional non-labeled buttons on the display monitor
The four additional buttons on the monitor that are not labeled have no function and may
be ignored.

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7“BEST” PRACTICES AND DIVING TIPS
7.1 NAVIGATION
Navigation of a submersible is very different from navigation on land. The largest
difference is that VideoRay operates in three dimensions, rather than the familiar two.
Below are some tips for navigating with VideoRay in its native environment.
1) The submerged operation and navigation of VideoRay is accomplished by what is
commonly referred to as "dead reckoning". This involves the observation and
subsequent recognition of landmarks as viewed on your Video Monitor. The
compass rose will help you keep track of direction.
2) When operating in areas containing obstructions or obstacles that could snag or foul
the tether, the operator should endeavor to remember the route taken to get to any one
position. Not only will this information be helpful on the return trip, it will be
extremely valuable in the event the tether does become snagged or fouled!
3) In the event obstructions are encountered, or you become lost or disoriented with
respect to VideoRay's position, always remember that the safest way back is to follow
the tether.
7.2 HANDLING THE TETHER
The tether should be considered the most important part of the VideoRay system. It feeds
power and control signals to the vehicle and returns data from the sensors. If the tether
becomes damaged from improper use, poor handling or an accident, the vehicle may
become crippled or inoperable. For maximum tether life and reliability, follow these
recommended tether handling tips:
1) Never step on the tether. Trampling the tether underfoot may crush conductors and
coax cables, leading to premature failure. Trampling is also abrasive to the tether
jacket. Remember, this is a multi-conductor tether, not at electrical extension cord.
2) Never allow a truck, passenger vehicle, or boat to drive over the tether. This will do
more concentrated and immediate damage than trampling.
3) Do not allow the tether to be deployed over a sharp edge. This could cause a kink,
cut or excessive wear.
4) Do not bend the tether beyond its minimum bend diameter. Most tethers have a
minimum bend diameter of three to four inches. If the tether is bent beyond this
diameter on pulleys or around corners, wire fatigue will be accelerated. For a general
rule of thumb, do not bend the tether any tighter than what would fit around a typical
soda pop can.
5) Never kink the tether. A fully bent back kink causes local but permanent deformation
in the tether. This can be serious because accelerated wire fatigue is subsequently
concentrated at the kink location. Such a kink may also be severe enough to instantly
break any coax cables in the tether.

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6) Avoid snap loading the tether. This situation may easily occur when a slack tether is
reeled onto a motorized spool. Loads may peak at a very high value when the tether
snaps taunt. Another dangerous situation for snap loading is a tethered submersible
vehicle operated from a pitching ship.
There are a few proper and many improper ways to wind and unwind a tether. If
improper tether handling techniques are used the tether may become tangled, which
ultimately leads to kinking, trampling underfoot, and other tether damage. Following are
some suggestions for keeping the tether tidy and ready for deployment at any time.
1) The preferred tether storage and deployment method is to use a winch. For very long
tethers, this often becomes the only choice. It is important that the winch drum and
any pulleys or tackle supports the tether beyond its minimum bend diameter. Usually
one end of the tether is permanently attached to the drum and conductors brought out
with slip rings.
2) Shorter tethers may be stored and deployed from a box with a removable lid. If the
tether is to be deployed from a hanger system, make sure the hanger supports the
tether beyond its minimum bend diameter.
3) When coiling the tether in a box, put in the surface connector first so that the vehicle
connector is at the top of the coil. Start the coil at least 10 feet away from the surface
end of tether. This leaves some free tether from the bottom of the coil to quickly
connect to the power supply without unwinding or removing the coil.
4) When deploying the tether, a person should be available to tend the unwinding coils
to prevent kinks.
5) When coiling the tether, do not force the tether to twist. Doing so may damage the
tether or make it very difficult to manage. When a loop of tether is laid down in a
coil, the tether experiences an axial twist. This causes the next loop to preferentially
lay in the opposite direction. Thus, any given tether loop will have a self-preferred
winding direction – left or right. Both winding directions may be easily
accommodated as shown below by allowing the loops to turn under themselves. This
creates loops in both coiling directions and any twist in the tether is canceled in the
subsequent loop.
Proper Tether Winding Technique
Right Hand Loop
Left Hand Loop

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7.3 AVOIDING TANGLES
As mentioned above, it is always a good idea to consider where the tether lies as VideoRay
moves through the water or along the bottom. The following tips may assist in dealing
with and / or avoiding tether problems:
1) Don't feed out unnecessary tether. When flying VideoRay back along its tether, haul
in the slack line to avoid leaving a loop behind the vehicle.
2) Avoid weaving in and around fixed objects like pilings, rocks, and anchors. When
operating in possibly fouled areas, it is advisable to remain on the surface until
VideoRay is approximately above your intended dive objective.
7.4 FREEING A SNAGGED TETHER
1) Do not try to rip a snagged tether free! In the event VideoRay's tether becomes
snagged, treat the situation as a challenge rather than a disaster. Fly the VideoRay
along the tether to determine the location of the snag. If the problem area can be
located visually using the vehicle, appropriate corrective action can be taken.
2) If the problem area cannot be located using VideoRay's camera, try pulling gently on
the tether. Turn the vehicle power off and pull from different angles and directions if
possible.
3) In the event the tether cannot be otherwise freed, it may be necessary to have a diver
retrieve it manually. In that event, turn off the system power and unplug it from its
power source.
7.5 BALLAST SETUP
VideoRay is configured at the factory to be neutrally buoyant in fresh water. Depending
upon the water conditions, including salinity or other factors, the VideoRay ballast might
need to be adjusted for proper operation. Ballast is adjusted by adding or removing
weights from the ballast retaining system located under the ROV between the skids.
These weights are included with your VideoRay.
The ballast should be adjusted so a submerged VideoRay ROV floats upward slightly
(positive buoyancy). Should the VideoRay rise rapidly, or the vertical thruster create a
fountain spray of water when near the surface, more ballast must be added. Should the
VideoRay sink, some ballast must be removed. Salt water density is greater than that of
fresh water. Additional ballast must be added to the VideoRay ROV when using it in salt
water.

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7.6 INCREASING THRUSTER POWER
In some situations it may be advantageous to have more thruster power available,
particularly when working in currents. There are several steps that can be performed to
increase thruster power.
1) First make sure the joystick mode is set to Normal, not Fine.
2) To gain more thrust, first remove the grills from the rear of the thruster guards.
3) Second, to gain even additional thrust, remove the thruster guards themselves.
Note: Removing the thruster guards may increase chances of fouling the propellers and
should not be attempted in conditions of heavy debris or seaweed.
Additonal thruster power can be achieved by minimizing the power consumption of the
lights. To maximize the power available to the thrusters, operate the lights at the lowest
possible setting that still allows adequate visibility.
7.7 LOSS OF THRUSTER POWER
1) Should VideoRay suddenly become unresponsive in a particular direction, it is
possible that one of the thrusters may have lost power. The most common cause of
thruster power loss is a fouled propeller. This often is the result of organic or
synthetic material becoming tangled in a propeller and subsequently wrapped tightly
around the propeller shaft.
2) VideoRay's thrusters are designed to operate at their rated speed for extended periods
of time. However, should a propeller become jammed, the motor may burn out if
power is continually applied. Power should be turned off, and the vehicle retrieved
and inspected. Remove any debris and test the thruster for proper operation. Note
that the guards on the VideoRay are specifically designed for rapid and easy removal.
3) If VideoRay’s thrusters are not fouled and still do not run, try resetting the VideoRay
computer by switching the power supply off, waiting ten seconds, and switching it
back on again.
4) Servicing may be necessary if the propeller and shaft are clear and rotate freely, yet
the thruster does not respond to its controls.
7.8 FOGGED VIEW PORT AND/ OR LIGHT LENSES
Atmospheric conditions may result in some humidity being present inside VideoRay's
pressure housings. This may cause condensation to form on the camera view port and/or
light lenses. Ordinarily this problem is not serious and may go away over a short period of
time. Should it persist, the use of a desiccant such as silica gel, which can be found at most
photographic stores or from VideoRay, may be placed inside the vehicle's pressure
housing.