Dräger LAR 7000 - User Manual

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Summary

Dräger LAR 7000 Rebreather Diving Equipment

Benefits and Services

Features

Key operational and design features of the Dräger LAR 7000 rebreather diving apparatus, including operational modes and design aspects.

Dräger Service

Overview of Dräger's service and rental solutions, emphasizing experience and tailored support for safety equipment.

Technical Data and Ordering

Basic Unit Technical Data

Technical specifications for the basic unit of the Dräger LAR 7000, covering operation, depth, endurance, and breathing gas.

Cylinder Data

Detailed technical data for the oxygen cylinder, including volume, dimensions, pressure, connection, material, and approval.

Ordering Information

Product codes and part numbers for the Dräger LAR 7000 system, accessories, test units, and consumables.

The Dräger LAR 7000 is a highly versatile rebreather diving apparatus designed for various shallow water diving applications, including explosive ordnance disposal (EOD) diving, submarine lock-out, and special operations diving. This front-mounted apparatus offers a combination of closed-circuit oxygen diving and semi-closed-circuit nitrox diving, with the unique ability to switch between these modes during a dive.

Function Description:

The Dräger LAR 7000 operates on a principle of closed and semi-closed circuits, utilizing a constant dosage and lung demand valve. In closed-circuit mode, it allows for pure oxygen diving, while in semi-closed-circuit mode, it supports nitrox diving with various pre-mixed gas compositions. This dual functionality makes it adaptable to different operational requirements and depths. The apparatus is designed for stealth operations, featuring a low magnetic signature in compliance with STANAG 2897 Class A and an acoustic signature tested in accordance with AMP 15.

Important Technical Specifications:

Diving Depth:
- Closed Circuit: 0 to 32 fsw (feet of seawater)
- Semi-Closed Circuit: 0 to 78 fsw
Diving Endurance: 240 minutes at 39°F water temperature. All depths are at a PpO2 of 1.6 ata.
Breathing Gas Options:
- 0 to 20 fsw pure oxygen
- 0 to 55 fsw pre-mixed gas B (60% O2, 40% N2)
- Optional with upgrade kit:
  - 0 to 98 fsw pre-mixed gas C (40% O2, 60% N2)
  - 0 to 128 fsw pre-mixed gas D (32.5% O2, 67.5% N2)
Breathing Bag: Flexible volume approximately 5.5 liters, available volume approximately 10 liters.
Sodalime: Uses DiveSorb® Pro, approximately 5 lb. 1 oz. per filling.
Relief Valve: Adjustable from approximately 4 mbar to 90 mbar.
Dimensions: Length 17 in., width 13 in., depth 7.5 in.
Weight: Approximately 13 kg in air, neutral in water (ready to dive).
Operating Temperature: 29°F to 104°F.
Storage Temperature: -22°F to 122°F.
Oxygen Cylinder (Low Magnetic - LM):
- Volume: 14 cu. ft.
- Diameter: 5.25 in.
- Nominal Pressure: 3000 psi
- Connection: G 3/4"
- Material: Aluminium alloy
- Approval: DOT3AL
- Positioning: At the apparatus

Usage Features:

The Dräger LAR 7000 is designed for operational efficiency and ease of use. Key usage features include:

Versatile Diving Modes: The ability to switch between closed-circuit oxygen diving and semi-closed-circuit nitrox diving during a dive provides operational flexibility for various mission profiles and depths.
Front-Mounted Apparatus: This configuration enhances diver maneuverability and accessibility to controls.
Flexible Nitrox Cylinder Mounting: The nitrox cylinder can be mounted either horizontally or vertically on the diver's back, allowing for customization based on diver preference and mission requirements.
Quick-Release Nitrox Connection: A one-hand operation for connecting the nitrox cylinder ensures rapid deployment and ease of use, particularly in challenging environments.
Non-Magnetic Design: Compliance with STANAG 2897 Class A makes the LAR 7000 suitable for explosive ordnance disposal (EOD) diving, where magnetic interference must be minimized.
Streamlined Design: The apparatus is designed to be compact and streamlined, reducing drag and improving diver agility underwater.

Maintenance Features:

Maintaining the Dräger LAR 7000 is supported by a range of tools and consumables, ensuring its reliability and longevity.

Test Accessories:
- Pre Dive Test Unit (Pre Dive): T 14 992
- Dosage Test Unit (Workshop): T 14 433
- Multi-Purpose Test Unit (Workshop & Pre Dive): T 15 007 These units facilitate thorough checks and calibration, ensuring the apparatus is in optimal working condition before and after dives.
Consumables:
- DiveSorb® Pro: Available in various sizes (4.5 kg for approx. two dives, 37 lb., 18 kg for approx. eight dives) for CO2 absorption, ensuring long dive times.
- Halocarbon lubricant (28 g per tube): 65 90 212
- Silicon lubricant (100 g per tube) for mouthpiece: 15 95 008
- Molykote M 111 Comp. 100G: 40 59 123
- Christolube MCG 111: 40 54 602 These lubricants and absorbents are essential for the proper functioning and maintenance of the rebreather's components.
Tools:
- Tool bag: T 14 410
- Tool bag, Non-Magnetic: T 16 405 Specialized tool bags, including a non-magnetic option, are available for organizing and transporting maintenance tools.
Spare Parts: A dedicated spare part set (T 14 411) ensures that necessary components are readily available for repairs and replacements.
Dräger Service Advantage: Dräger offers comprehensive service and rental solutions, backed by over 125 years of experience. This includes tailored support, complete peace of mind, budget security, and full-service support throughout the equipment's lifecycle. This commitment ensures that users receive expert assistance for their safety equipment needs.