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0747-SOM-00002-01 

Page 5 of 28 

Introduction 

 

General Overview 

 

The DMD system has been designed to provide divers with the ability to navigate and carry out inspections 
in zero visibility conditions. 

Utilising the Gemini range of Multibeam imaging sonars allows the user to select the most suitable sonar for 
the type of operation required. Employing a high degree of resolution and field of view the diver can opt for 
either the Gemini 720ik or Gemini 1200ik Multibeam imaging sonars, both provide excellent range, 
resolution and field of view. These high specification Multibeam imaging sonars provide a diver with a high 
degree of confidence while working in zero visibility conditions and allow searches to be undertaken far 
more efficiently than using conventional search pattern techniques. The DMD systems have been designed 
to be used with the Inodive accessory rail system, allowing for the DMD system to be used with an 
extensive range of dive masks and helmets. All of the Gemini sonars, when supplied with a DMD system, 
are built-up with an Inodive interface to allow for seamless installation onto the dive mask/helmet. 

Power and control of the DMD system can either be through a tethered connection to the surface, where 
the topside operator controls what the diver sees, or the diver can work autonomously with no need for a 
surface connection by utilising a diver battery pack and DMD hand controller. 

The tethered system (DMD-T) is intended primarily for surface air dive systems where the supplied tether 
connects the diver to the surface and control of the sonar is undertaken by the support team. The same 
DMD-

T system can be used by scuba divers, where it’s acceptable to be attached to the surface by the 

tether. 

The untethered system (DMD-U) allows the diver to operate totally independent of a surface connection, 
with the diver himself taking control of the sonar operation. This is of particular benefit where a diver wishes 
to operate in a covert fashion or where there may be hazards that the tether could get snagged on. 

By using the DMD system, a diver has the ability to view the sonar image on the diver mounted monocle, 
allowing the diver to quickly and efficiently locate targets of interest. The DMD-U system allows the diver to 
adjust settings using a custom hand controller and record data of interest on the subsea computer, while 
the DMD-T system allows the support diver on the surface to make any necessary adjustments to the sonar 
settings and highlight any targets of interest for the diver to investigate.  

The Inodive rail system simplifies the fitting and removal of the DMD system. This allows the sonar to be 
removed from the mask/helmet and attached to a Gemini sonar pistol grip where this may at times offer 
some advantage, such as difficult to reach areas or where a different sonar viewing angle may be 
beneficial.  

The innovative Monocle design allows for it to be accurately positioned on the divers helmet/mask and yet it 
can also easily be lifted out of the divers view and later replaced back into the same position by the diver 
when it’s required. 

 

 

 

 

 
 

 

 

Summary of Contents for 0747-SOM-00002

Page 1: ...0747 SOM 00002 01 Page 1 of 28 Diver Mounted Display Tethered Product Manual 0747 SOM 00002 ...

Page 2: ...0 DMD Instrument Deployment Case 13 DMD Sonar Deployment Case 15 DMD Diver to Surface Deployment Case 16 System Connections SUBSEA 17 System Connections SURFACE 18 Assembly Fitting of Sonar onto Mask Using the OTS Accessory Rails 19 Assembly Fitting of Monocle onto Mask Using the OTS Accessory Rails 20 Monocle Orientation 22 Power Up System Switch On 23 Switch ON Start Up Sequence 23 Software Disp...

Page 3: ...ers 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 purch...

Page 4: ... 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 seri...

Page 5: ...ended primarily for surface air dive systems where the supplied tether connects the diver to the surface and control of the sonar is undertaken by the support team The same DMD T system can be used by scuba divers where it s acceptable to be attached to the surface by the tether The untethered system DMD U allows the diver to operate totally independent of a surface connection with the diver himse...

Page 6: ...o be used with our Gemini range of multibeam sonars primarily the 1200ik with inodive mounting plate 720ik with inodive mounting plate Physical Dimensions 1200ik 720ik Please refer to the 1200ik 720ik manuals available on our website www tritech co uk for full sonar specifications ...

Page 7: ...nly used with DMD T SCU Rugged Case Laptop Toughbook 55 Power Internal rechargeable power Internal rechargeable battery Duration of operation 4hrs for a dual battery system Up to 19 hours IP rating Weatherproof IP53 Battery chemistry Li ion Li ion Weight in air 8kg plus laptop 2kg ...

Page 8: ... of 28 Monocle Specifications Monocle specification Power requirement 0 5W 5V DC Depth rating 100m Display input RGB HSYNC VSYNC Display resolution SVGA 800 X 600 Connector SubConn Micro Circular series Weight in water 0 09kg ...

Page 9: ...quirement 1 10W 20 42 VDC Depth rating 100m Connectors SubConn Micro Circular series Weight in water 0 54kg 1Does not allow for attached accessories Tether Specifications Tether only used with DMD T Cable length 100m Connectors SubConn Micro Circular series Weight in water 0 073kg per meter ...

Page 10: ...system onto a diver Securely mounted within the DMD SCU are x2 Li ion battery packs linked into an intelligent charging circuit To comply with IATA shipping regulations the Toughbook laptop should not be retained within the DMD SCU when the unit is presented for international air transportation The Air Transportation Fuses at F1 F2 on the rear of the SCU should be removed and stored separately thi...

Page 11: ... paused due to the temperature of the batteries being outside their charging temperature range of 0 C to 45 C or if a battery fault is detected Battery Charge Status during operation During SCU operation the charge status of the batteries is provided to Genesis software Comms Connect a Toughbook USB port to the SCU COMMS port at the back panel via a USB A type to USB B type cable Comms LED Green T...

Page 12: ...0747 SOM 00002 01 Page 12 of 28 Connection Panel on rear of DMD SCU ...

Page 13: ...fely storing and transporting all the items and accessories other than the sonar head required to install and deploy the system on site Tier 1 TOP LEVEL 1 12148 DMD Monocle 2 12384 Subsea Computer SSC with 12469 sleeve 3 12412 1 5M DMD sonar cable 12422 1 5M Subconn MCOM6M with Diver COMMS cable Female blanking plug MCDC6F fitted 12055 Dive mask Helmet accessory rails x2 12363 Inodive Monocle Clam...

Page 14: ...oughbook 12420 Topside Diver Audio Cable 12504 Subconn MCDC12F 12505 Subconn MCDC10M 09174 Subconn MCDC6M 12506 Subconn MCDC8M 12507 Subconn MCDC10F 10071 Subconn MCDC8F 11541 Subconn MCDC6F 8 12523 Accessories Kit Box DMD SCU Air Transportation fuses monocle buffer O ring Tier 3 BOTTOMLEVEL 9 12441 Panasonic Toughbook Laptop 10 09684 USB Pen Drive ...

Page 15: ...i 720ik or 1200ik 2 Spare Pocket Space 3 Cable Stowage Space 4 2mm Allen Key 5 CD Case Stowage Space 6 Document Space The DMD Sonar Deployment case is a rugged transit case featuring bespoke cut outs for safely storing and transporting the Gemini 720ik or 1200ik multibeam sonar heads ...

Page 16: ...f Outer PU Sheath 1 3mm Weight Of Cable In Air APPROX 216 kg km Weight Of Cable In Seawater APPROX 69 kg km Weight Of Cable In Freshwater APPROX 73 kg km Ambient Operating Temperature Range 20 to 80 C Minimum Recommended Static Bend radius 122 mm Minimum Recommended Dynamic Bend radius 176 mm Maximum Hydrostatic Working Pressure 2500 PSI The DMD Diver to Surface Deployment case is a large rugged t...

Page 17: ... 12422 SUBCONN MCOM6M DIVER COMS CABLE 4 1 09174 08059 SUBCONN MCDC6M DUMMY PLUG MCDLS F LOCKING SLEEVE 5 1 VARIOUS GEMINI IK SONAR INODIVE FIXING 6 1 12412 IMPULSE MKS W 307 CCP TO SUBCONN MCOM10M CABLE ASSY 7 1 12148 DMD MONOCLE ASSEMBLY Particular care should be taken to ensure that the blanking plug item 4 is fitted if not utilising the diver comms pass thru option on the SSC Submerging the un...

Page 18: ...fore the system can be powered on and deployed ITEM NO QTY PART NUMBER DESCRIPTION 1 1 12341 DMD SURFACE CONTROL UNIT 2 1 09992 PX0840 B 2M00 IP68 USB CABLE 3 1 12441 PANASONIC TOUGHBOOK FZ 55 4 1 12445 DMD SCU AC DC 48V POWER SUPPLY UNIT 5 1 VARIOUS IEC320 C13 MAINS POWER LEAD 6 1 12300 DMD DIVER CABLE 7 1 12420 DMD SCU DIVER COMMS AUDIO CABLE ...

Page 19: ...SSORY RAIL 2 1 12051 SPIGOT ASSEMBLY 90 DEGREE 3 1 12049 CLAMPING SLIDE WITH 1 2 HOLE 4 1 VARIOUS GEMINI IK SONAR WITH INNODIVE FIXING Slide Clamping Side with Hole 3 onto the slide connection on the underside of the Gemini ik sonar 4 Slide the 90 Degree Spigot Assembly 2 onto the Accessory Rail 1 Slide the Sonar 4 and clamping slide 3 onto the mounting spigot 2 Use the knob on the Clamping Slide ...

Page 20: ... 1 12467 DMD MONOCLE LOCKING ASSEMBLY Take the Clamping Slide With Hole 2 and slide onto the Accessory Rail 1 Slide the long section of the bar 3 through the hole in the clamping slide 2 and when the monocle is up against the diver mask turn the knob clockwise to lock the bar in place Loosen unscrew the knurled section of the monocle mount assembly 4 and loosen unscrew 2 5mm hex screw 5 The monocl...

Page 21: ...ace The monocle assembly is designed to allow it to be flipped up and out of the view of the diver if required Simply hold the front rear of the monocle between the thumb and index finger and rotate the assembly around the mounting bar The monocle will click into final position either against the mask or at 180 degree rotation flipped up and out of the way ...

Page 22: ... over EITHER EYE in this configuration cable routing may not be ideal The monocle orientation is specified at the point of purchase and is fixed no attempt should be made to alter this in the field Any attempt to do so may result in damage to the monocle Should you require a different monocle orientation than originally specified please contact Tritech International for advice LEFT EYE Cable Exiti...

Page 23: ...HBOOK Laptop Laptop can be powered via its own internal Lithium battery or connected to a mains supply using its dedicated charging adapter PSU Once the laptop has booted to the desktop double click the Genesis DMD shortcut to launch the system software The Genesis version splash screen will appear briefly followed by a plain Grey screen as seen below IMPORTANT If the DMD SCU Air transportation fu...

Page 24: ...C Power On the DMD SCU this will power up the SSC Subsea Computer the connected sonar head and DMD monocle DMD SCU POWER BUTTON Once the SSC has booted up it will establish comms with the DMD SCU The comms light on the DMD SCU will illuminate GREEN and the Genesis sonar display screen will become active ...

Page 25: ...fferently when viewed on the Divers display monocle or the Surface Operators laptop This is because all inputs which alter the control and display of the sonar image must be made by the surface control operator the diver has no direct control and simply views the sonar image Surface Operators View on DMD SCU Laptop Divers View on DMD Monocle ...

Page 26: ... maximum range however the definition of targets will be lower than when used in its higher frequency mode High Frequency 1200 kHz also has a 120 horizontal field of view at 6 about the horizontal axis 12 in total a slightly reduced vertical beam width when compared with the lower frequency channel This mode will produce higher definition images when compared with the lower frequency mode In high ...

Page 27: ...ant on positioning within the water i e standing crawling swimming etc the diver may find it helpful to reach up and adjust the orientation of the sonar slightly using gentle pressure to rotate it forward or backward on the mounting spigot ...

Page 28: ...h the anodised aluminium components are very resistant to corrosion using fresh water is a simple way of minimising the chance of corrosion Do not clean with solvents and only use a damp lint free cloth on the exterior of the units Do not undertake maintenance of the units outside the scope of that defined within this manual unless instructed to do so by Tritech International Ltd technical support...

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