Moog Tritech Gemini 1200ik User manual

Outstanding Performance in Underwater Technology A Moog Inc. Company
Gemini 1200ik
Dual Frequency
Multibeam Sonar
Product Manual
Document No-0746-SOM-00002-02

This page has deliberately been left blank.

Help & Support
First please read this manual thoroughly (particularly the Troubleshooting section, if present). If a warranty is
applicable, further details can be found in the Warranty Statement, 0080- STF-00139, available upon request.
Tritech International Ltd can be contacted as follows:
Address Tritech International Ltd
Peregrine Road
Westhill Business Park
Westhill, Aberdeenshire
AB32 6JL, UK
Telephone [phone]
Email [email protected]
Website www.moog.com./tritech
Prior to contacting Tritech International Ltd please ensure that the following information is available:
1. The Serial Numbers of the product and any Tritech International Ltd equipment
connected directly or indirectly to it
2. Software or firmware revision numbers
3. A clear fault description
4. Details of any remedial action implemented
Contamination
If the product has been used in a contaminated or hazardous environment you
must de-contaminate the product and report any hazards prior to returning
the unit for repair. Under no circumstances should a product be returned that is
contaminated with radioactive material.
The name of the organisation which purchased the system is held on record at Tritech International Ltd and
information of new software or hardware packages will be announced at regular intervals. This manual may not
detail every aspect of operation and for the latest revision of the manual please refer to www.moog.com/tritech
Tritech International Ltd can only undertake to provide software support of systems loaded with the software in
accordance with the instructions given in this manual. It is the customer’s responsibility to ensure the compatibility
of any other package they choose to use.

Warning Symbols
Throughout this manual the following symbols may be used where applicable to denote any particular hazards
or areas which should be given special attention:
Note
This symbol highlights anything which would be of particular interest to the
reader or provides extra information outside of the current topic.
Important
When this is shown there is potential to cause harm to the device due to
static discharge. The components should not be handled without appropriate
protection to prevent such a discharge occurring.
Caution
This highlights areas where extra care is needed to ensure that certain delicate
components are not damaged.
Warning
DANGER OF INJURY TO SELF OR OTHERS. Where this symbol is present there is a
serious risk of injury or loss of life. Care should be taken to follow the instructions
correctly.
Copyright Notice.
The copyright in this document is the property of Tritech International Ltd. The document is supplied on the
understanding that it may not be copied, used, or disclosed to others except as authorised in writing by Tritech
International Ltd. We reserve the right to change, modify and update designs and specifications as part of our
ongoing product development programme.

Table of Contents
Contents
Introduction 1
Technical Specifications.................................................... 2
Installation 4
Hardware Installation.......................................................... 4
Mounting Options................................................................ 4
Diver Mask & Helmet Mounting Option................. 5
Diver Mount Display (DMD) ........................................... 5
Electrical Installation 6
Power Supply Requirements.......................................... 6
Electrical Connections ....................................................... 6
Connector Maintenance Guidelines......................... 7
Ground Fault Monitoring ................................................. 7
Test Cables and Accessories........................................... 7
Subsea Cable Whips & Test Leads............................... 7
Genesis Comms Setup 8
Main GUI window................................................................. 8
Ethernet Protocol Settings ............................................. 8
Windows Firewall Settings............................................. 8

1
0746-SOM-00002 - 02 © Tritech International Ltd.
1. Introduction
The Gemini 1200ik is a dual frequency 2D imaging sonar offering the opportunity to choose the benefit of
either longer acoustic ranges or higher resolution imagery between the Lower & Higher frequency channels.
It is a multibeam sonar, offering a 120° field of view on both the Low frequency and High frequency channels
with update rates of up to 65Hz (30Hz typical - range dependant) giving rapid feedback to the user. The system
consists of the Gemini sonar head(s) with Genesis control and display software.
Communication is 100Mbit·s-1 Ethernet. When using an Ethernet connection it should be noted that the Gemini
Sonar can fully utilise a 100Mbit·s-1 link while returning the sonar data. If the Gemini Sonar is to share an Ethernet
link with other high bandwidth devices, such as video cameras, it is recommended that the 100Mbit·s-1 devices
share a gigabit (or faster) link to the surface to reduce possible network congestion.
The sonar can be supplied as ‘Single Port’ or ‘Dual Port’ models. The ‘Dual’ Port option connects and runs in the
same way as a ‘Single Port’ unit but has a secondary ‘Aux Port’ connection which allows additional RS232 sensors
to be connected and the option of a TTL IN synchronisation signal.
Operating Depth
350m
Range
120m
Range Resolution
2.4mm
Features
• Real-time updates for video-like imagery
• 120° field of view
• CHIRP processing
• Integrated velocimeter for accurate ranging
• Software development kit available
Benets
• Switch between 720kHz and 1200kHz
• Long range object detection
• Short range detailed imaging
• Compact and easy to install
Applications
• ROV/AUV navigation
• Obstacle avoidance
• Detailed object imaging
• Diver Mounted Display
• Subsea monitoring and inspection
PA500/6 Altimeter Super Seaking
V7 Sonar
Seaking Side Scan Diver Mounted
systems
Related Products

2
0746-SOM-00002 - 02 © Tritech International Ltd.
1.1 Technical Specifications
Physical Specifications Gemini 1200ik
Depth rating 350m
Weight in air 1.46kg
Weight in water 0.50kg
Operating Temperature -10°c to 35°C
Storage Temperature -20°C to 50°C
125
150
65

3
0746-SOM-00002 - 02 © Tritech International Ltd.
Acoustic Specifications
Operating frequency 720kHz 1200kHz
Angular resolution 1.0° acoustic, 0.25° effective 0.6° acoustic, 0.12° effective
Range 0.1 m – 120 m 0.1 m – 50 m
Number of beams 512 1024
Horizontal Beam Aperture 120° Fwd 65° or 120°
Vertical Beam Aperture 20° (+/-10° about horizontal) 12° (+/-6° about horizontal)
Update rate 5-65 Hz (mode & range dependant)
Range resolution 4mm 2.4mm
CHIRP support Yes
Speed of sound Integrated VoS sensor
Note
In high frequency (1200kHz) mode, the user has the option of switching to
using a 65° sector which will double the update rate compared to the full 120°
sector scan
Electrical and Communication
Supply voltage 19V to 74V DC
Standby Power Consumption 10W
Operational Power Consumption 15W – 30W (range dependent)
Main port protocol Ethernet
Aux port (optional) RS232,TTL in, pass-through power
Connector type Impulse MKS(W)-307-FCR
The power consumption range quoted is accurate for a standalone unit and does not include cable losses.

4
0746-SOM-00002 - 02 © Tritech International Ltd.
2. Installation
2.1 Hardware Installation
The sonar is typically mounted with the receiver element on the top. The transmit and receive elements are
arranged such that they are angled at ± 10° about the horizontal axis which should be taken into account when
mounting the Sonar.
Any metallic clamps should be electrically insulated from the sonar body by either rubber or plastic strips or
mounting brackets of at least 3 mm thickness and extending at least 3mm beyond the clamp boundary to
reduce any galvanic corrosion effect. Non-metallic clamps are preferable; if metallic clamps are used (especially if
they are different in composition to the material used by the sonar) they should be painted or lacquered with at
least three coatings. The body of the Gemini 1200ik is made from aluminium, alloys containing copper such as
brasses or bronze should be avoided.
CAUTION
Although the sonar head is rugged, it should be handled with care. This is
particularly important in the area of the transmitter and receiver elements on
the front face, and the electrical connectors on the back face. The plastic guard
fitted to the front face of the unit will not protect the sonar against significant
impacts or erosion damage.
2.2 Mounting Options
The sonar must be held in place securely when fitted on a vehicle. Standard
orientation is top & bottom however the sonar image can be flipped within
software should the sonar be mounted inverted.
The Gemini 720/1200ik Sonar Mount Assembly shown here can be
purchased as a mounting accessory kit from Tritech.
Associated part numbers and descriptions are given in the table below:
Gemini 720/1200ik Sonar Mount Assembly S11935
ITEM NO QTY PART NUMBER DESCRIPTION
1 2 S06272 M5x30 Skt Head Capscrew
2 1 S11736 Sonar Mount – Top Plate
3 2 ZNI Insertion Rubber Kit
4 1 S11737 Sonar Mount - Brace
The Optional pivot pole mount assembly is available as an easy to deploy,
lightweight variable attitude mounting option for rapid imaging results.

5
0746-SOM-00002 - 02 © Tritech International Ltd.
2.3 Diver Mask & Helmet Mounting Option
The 1200ik can also be mounted on
a variety of diver helmets and masks
with the use of our sonar mounting
kits which are available for purchase.
Examples of some of those covered
are: Kirby Morgan, Gorski, OTS
& Interspiro.
Should you require this option
please contact Tritech for further
information.
2.4 Diver Mount Display (DMD)
The Diver Mounted Display together with the Gemini 1200ik multibeam
imaging sonar, provides divers with a crisp acoustic image in low or zero-
visibility conditions.
The signal from the compact and lightweight diver-mounted sonar is
sent to the surface support dive team over the umbilical, who are then
also able to provide an extra set of eyes and assist the diver in identifying
targets of interest.
By using the INODIVE mounting system the sonar can be positioned and
relocated quickly and easily. This allows the sonar to be removed from the
helmet or face mask easily for hand-held use in difficult to access situations,
or where a lower viewing angle is required.
Tritech DMD system with Gemini 1200ik and display eyepiece

6
0746-SOM-00002 - 02 © Tritech International Ltd.
3. Electrical Installation
3.1 Power Supply Requirements
The sonar requires a regulated and smoothed DC power supply between 19V and 74V. Power is normally supplied
via the vehicle while in service or can be supplied via an external PSU as part of a deck test kit.
WARNING
Power should only be supplied to the Gemini through the MAIN port. The AUX
port power is supplied via pass through from the MAIN port.
Never try to make the Gemini work down a long cable by increasing the PSU
output voltage above 74V DC.
3.2 Electrical Connections
Connection to the sonar main and auxiliary ports are via
the Impulse MKS(W)-307-FCR bulkhead connectors on
the back of the sonar as shown in the picture opposite.
Note the key way on the sonar connector is in the
downward position.
A subsea cable whip supporting Ethernet communications
can be supplied by Tritech.
The tail end of this whip cable should be terminated with
a cable connection or penetration suitable for the end
user application.
Cable
Connector
View
Sonar
Bulkhead
View
Main Port Aux Port
Pin Function Pin Function
1. 0 VDC 1. 0 VDC
2. + V 2. + V
3. Chassis / Earth 3. Chassis / Earth
4. Ethernet RX + 4. TTL IN
5. Ethernet RX - 5. RS232 GND / TTL GND
6. Ethernet TX + 6. RS232 TX
7. Ethernet TX - 7. RS232 RX
Warning
Application of excessive or reverse supply voltage to the unit or supply voltage
across any of the communication connections may lead to equipment damage
not covered under the warranty conditions.

7
0746-SOM-00002 - 02 © Tritech International Ltd.
3.3 Connector Maintenance Guidelines
Mating surfaces should be lubricated with 3M Silicone Spray or equivalent, DO NOT GREASE. Connectors must
be lubricated on a regular basis.
Clean plugs and receptacles with soap and fresh water. If using alcohol or IPA to clean out the connector take
care that it does not come into contact with any other part of the sonar.
When attaching a connector make sure that both connector and socket are completely dry. Any water trapped
in the connection could result in an electrical short and permanent damage to the sonar
If the Gemini has two ports then any unused bulkhead connector must have a blanking cap fitted prior to
immersing in water. Failure to do this will permanently damage the sonar.
3.4 Ground Fault Monitoring
The power supply within the Gemini includes an electrically isolated DC-DC converter front-end. There is a small
capacitive connection between the isolated ground and the sonar chassis which should not noticeably affect
any impressed current ground fault indicator (GFI) equipment.
3.5 Test Cables and Accessories
Deck test cables are available to aid with the setup and configuration of the sonar while on or off the vehicle.
Tritech recommend the use of the deck test cables (below) as the first step in any diagnostic or fault finding
activities.
WARNING
The Gemini PSU that is supplied with the Gemini system is intended for INDOOR
USE ONLY and should not be placed in a position where it could get wet.
3.6 Subsea Cable Whips & Test Leads
Subsea cable tails (Whips) are available with both straight and right
angle connectors suitable for the main and auxiliary ports of the 1200ik
Sonar:
Part Number Description
S11583 XM Impulse MKS(W)-307-CCP Right Angle Power &
Comms Whip, X metres
S11584 XM Impulse MKS(W)-307-CCP Straight Power & Comms
Whip, X metres
S11624 XM Impulse MKS(W)-307-CCP-RA to 12w Souriau Test
Cable, X meters
S12042 Impulse MKS-300-FCR Blanking Plug
PSU
S11624 RA Impulse to 12w or
S11560 STR Impulse to 12w
Souriau Pwr / Ethernet Test Cable Xm
S11561 Gemini Power / Ethernet
Break-out Cable
S11346 Gemini Imaging Sonar
Power Supply Unit

8
0746-SOM-00002 - 02 © Tritech International Ltd.
4. Genesis Comms Setup
The Genesis software package from Tritech allows the control, configuration and display of Tritech imaging and
survey sensor data from within a single software environment. The Following section will guide you through the
process of setting up your system to communicate with your chosen devices.
4.1 Main GUI window
Devices are automatically added into Genesis as they
are connected to the system via the Ethernet or Tritech
USB Adapter (720im).
A Tritech SCU (Surface Control Unit) or a or Tritech
Seahub is required when connecting devices using the
ARCNET communications protocol.
The main window area displays the default output
configuration for the devices you have connected.
The image to the left shows the default device window
layout for a Gemini 1200ik sonar which is similar for the
other Gemini devices.
4.2 Ethernet Protocol Settings
As standard all Ethernet enabled Tritech Sensors are set in the IP range of 192.168.2.XX with a subnet mask
of 255.255.255.0. It is therefore necessary to configure the host network to the same IP address range as the
sensors being connected. This can be setup in the following way.
• Open the network and sharing centre in Windows.
• Double click on Ethernet connection.
• Choose properties in the pop-up dialogue.
• Double click the text that says “TCP/IPv4”.
• Check “Use the following IP address”.
• Set the IP address to 192.168.2.50
• Set the subnet mask to 255.255.255.0
To Avoid IP conflict and issues, make sure that each device on the network has a unique IP address The addresses
xxx.2.16, xxx.2.17, xxx.2.200, xxx.2.201 are reserved by the system so do not set to these. Make sure the option to
“Obtain an IP address automatically” is disabled.
4.3 Windows Firewall Settings
Check your anti-virus settings. Firewalls may see the data from the network
and prevent the broadcast message.
Occasionally a firewall may allow the broadcast message but stops the
high data rate from the sensor believing it to be a denial of service attack.
If this is the case, navigate to “Allowed Apps” in windows and add
permissions to the firewall settings for Genesis Software.
Note
The factory default IP Address of the
1200ik sonar is set to 192.168.2.201,
Subnet mask 255,255,255,0

This page has deliberately been left blank.