ROV - INSPECTION/OBSERVATION CLASS

The Asian Seal ROV is a Light Work Class vehicle with the most power full performance envelope in its class. Designed as an inspection tool, the LWCR Asian Seal operates to 300m in conjunction with its Tether Management System (TMS). The system can also be used in a free swimming mode with a small diameter umbilical cable.

• Asian Seal ROV 1 Unit

• Single function Manipulator - 2 Unit

• Spare Thrusters 2 Unit

• Surface Control Unit 1 Unit

• Transformer Unit 1 Unit

• Electronic Garage (TMS) 1 Unit

• 200 meters reinforced umbilical for winch 1 Unit

• 110 meters ROV Tether Cable (excursion cable) 1 Unit

• 310+ meters Umbilical Cable (free diving) 1 Unit

• Sonarvision Mesotech MS-900 SONAR PU + Head 1 Unit

• WINCH SYSTEM - This Unit is a Malaysian "A" Frame winch system 1 Unit

• SEA.MAC", specially built for LWCR Asian Seal:

- Winch Unit

- Slip ring Unit

- Cable payout and speed metering system

VEHICLE DATA:

* Maximum Working Depth : 300 meters

* Length : 1400 mm

* Height : 673 mm

* Width : 686 mm

* Thrust Forward Normal : 68 kgf

* Thrust Forward Full : 91 kgf

* Lateral : 7 kg

* Vertical : 7 kg

* Weight : 160 kg

* Payload : 4 kg

PROPULSION:

LWCR Asian Seal is propelled by seven highly efficient DOE SM4M brushless DC thrusters. Thruster

configuration is one vertical and two horizontal units and four at the back , providing full three dimensional

control.

CHASSIS:

A 100% modular chassis manufactured from Stainless Steel 316. This extremely rugged design is totally

maintenance free, non corroding and self-supporting in seawater. Additional equipment may be bolted

directly to chassis members.

PRESSURE HOUSINGS:

All housings are machined from 6082 marine grade aluminium and hard anodized black. The main

electronics pod is fitted with a water ingress alarm.

CONNECTORS:

Asian Divers’s range of 316 stainless steel connectors are generally used throughout.

BUOYANCY:

Closed cell polyurethane foam blocks. Each block is securely bolted to the chassis.

CONTROL SYSTEM:

16 bit digital system providing easy interfacing to ancillary equipment by the operator. The Asian Divers

comprehensive video overlay is fitted as standard providing digital and analogue compass rose, tilt icon,

date time group, depth (metric or imperial), CP value, pre-tilted and free text pages. Vehicle data may be

exported to clients Survey or Navigation computer systems via the Asian Divers Telemetry Interface Unit in

conjunction with a PC.

NAVIGATION:

Sensitive flux-gate compass unit with solid state rate sensor for enhanced azimuth stability.

Accuracy: ±1°

Resolution: 0.351°

Up-date rate: 125mS

DEPTH SENSOR:

Electronic unit in its own separate housing.

Accuracy: < ± 0.1 % of fsd

AUTOMATIC PILOT:

Full automatic pilot is provided for depth and heading.

TILT SYSTEM:

Tilt platform providing ± 90° of tilt. The ASIAN DIVERS tilt is fitted with positional feedback and tilt angle is

displayed on the video overlay.

LIGHTING:

Tungsten-halogen 2 X 250 Watt. 3 Settings

VIDEO SYSTEM: .

Two separate simultaneous TV channels via balanced line drivers and screened twisted pairs. ASIAN

DIVERS colour CCD camera is fitted as standard.

SURFACE CONTROL UNIT:

Contains all vehicle system surface control electronics (plus T.M.S. control if option fitted.) This unit is 19"

rack mountable and is supplied in a sealed (when closed) steel enclosure.

PILOT HAND CONTROL UNIT:

A small remote hand control unit containing all system controls. Unit is supplied with a 5m 'flying lead'.

SURFACE POWER SUPPLY UNIT:

Input Voltage : 100-250vac , Frequency : 50/60 Hz, Power Rating : 6kva, Instrumentation : 24vdc @ 6A,

Auxiliary Power : 80vdc @ 0.6A

Tether Management system (T.M.S.) - Single function electrical 'Gripstick' manipulator

ASIAN DIVERS low light mono CCD TV camera – CP Probe & UT Meter

SIT camera fit -2.5kw 3 phase AC outlet – Launch & Recovery System