CCR Liberty - Classic Backmount with BMCL

The Liberty CCR is a cutting edge, fault-tolerant, eCCR that has taken the technical diving community by storm. The modularity, simplicity, and reliability has made the Liberty CCR platform a favorite among explorers.

All Liberty CCRs are built to order and are modular. The main configurations for the Liberty are:

• Classic Backmount - The traditional configuration that started it all. Available in front mounted or back mounted counter lungs.
• Light - A travel friendly configuration of the Liberty rebreather that brings the weight down to 33lbs
• Heavy - A DIR style configuration of the Liberty rebreather that allows you to utilize any size of onboard cylinders. It employs a traditional backplate and wing with a robust tubular stand.
• Sidemount - A streamlined, sidemount variation that is popular with sidemount divers or divers looking for a bailout rebreather

Classic Backmount with BMCL

Experience unparalleled freedom with the BMCL unit by keeping your chest unencumbered, ensuring effortless access to D-rings and MAVs located at your DSV/BOV while maintaining optimal work of breathing. The Dive Soft BOV is a standard inclusion with every BMCL unit, guaranteeing swift access to open circuit breathing gas during emergencies. Alternatively, opt for the Dive Soft DSV for added flexibility.

Every BMCL configuration features a distinctive MAV system strategically positioned on the mouthpiece, eliminating the need for chest-mounted hoses and valves. With MAVs on the mouthpiece, their consistent placement ensures easy location, making them effortlessly accessible. Your mouth is the key – find your mouth, find your MAVs.

Tailor your setup by choosing between an ADV integrated into the BOV or a Diaphragm ADV built into the T-piece for enhanced customization.

Enjoy sleek counterlungs positioned on your shoulders, complemented by an OPV featuring a conveniently placed dump valve pull cord. The shoulder placement ensures consistent accessibility, facilitating ease of use. The individual removal of CLs for cleaning is a breeze.

The back-mounted counterlungs boast resistance to flooding and feature a pull dump OPV routed over the shoulder, simplifying DIL flush procedures.

Specifications:

• Counterlung Volume: 3.50 L each
• Dry Weight:
  • Stainless Steel Frame and Stand: 32.50 kg (71.65 lb)
  • Titanium Frame and Stand: 29.60 kg (65.26 lb)

Choose the BMCL unit for a diving experience that prioritizes accessibility, functionality, and ease, ensuring your always prepared for any underwater adventure.

Liberty Anatomy

Head Features: 2 Control units are located in indivudually sealed compartments tested to 350m. They communicate with each other through the O2 cell block. In case of battery or CU failure, the second CU takes control over the unit operation utilizing its redundant side of components allowing the diver to remain on the loop.

Head Components: All the components inside of the head are sealed off to stay protected in the case of flooding. The components can be detached and replaced using a 3 mm hex key. Ideal for expedition diving as they can be easily exchanged out in the field.

Wet Connectors: Displays are connected to the head via wet connectors, so even with a flood they will keep working

4 O2 Cells: 2 for each control unit located in a sealed block. Smart algorithm. The unit compares one cell with the other 3 cells and then performs the same test on each remaining cell. This process is constantly repeated throughout the dive. 

O2 Calibration: CCR Liberty is calibrated by a supplied calibration jig which directs gas flow directly to the O2 sensors, allowing for minimal gas use for the most accurate calibration of your cells. The unit takes into account the altitude the calibration is performed in. The Divesoft Mobile application can be used to easily verify the correct mV values of your sensors.

4 Pressure Sensors: 2 for each part of the unit. Know your loop pressure to a tenth of a millibar. Positive / Negative checks completed in 1 minute each. PREVENT A FLOOD WITH A PERFECT PRESSURE TEST.

2 Optional Helium Sensors: With Divesoft’s patented technology proven and tested in our Analyzers. The Helium sensors can be used as a redundant method of measuring PPO2 when used with Helium mixes. In the unlikely case of loss of all O2 sensors, the Helium sensors can be used to calculate your PPO2.

2 Magnetic Solenoid Valves: The solenoids (each for its corresponding half of the unit) are a single source of gas for the unit and they alternate when operating based on a predictive algorithm, – the unit opens the solenoid for a specific amount of time, based on your Setpoint, Current PPO2, and your depth, providing accurate oxygen addition for a smoother diving experience. They are designed to be in a closed position when inactive and they are protected from each end to prevent any debris from getting inside.

2 Li-Ion Batteries: Each is powering each half of the head. USB rechargeable. Easy to exchange. Each battery is insulated to work in extreme environments and has an exhaust valve. In case of gas discharge from within the battery, gas will be vented out into the environment and not into the breathing loop. Battery life: 35+ hours in Dive Mode, up to 11 months in Standby Mode.

Handsets: Every unit comes with 2 handsets. Operate your unit through 1 or 2 handsets. In the event of a damaged handset (HS), there is no effect on the function of the unit as the Control Units (CUs) are located within sealed independent compartments. The handsets contain the vibration alarm motors, thermometers, inclinometers, accelerometers, and light sensors but none of the critical computational components. Each handset has vibration alarms that go beyond visual alarms to let you know any important information

4 Displays: Every CCR Liberty comes with two handsets, operating in coordination with the HUD/ODA and buddy display. All the connectors are water-resistant and ensure operation even in case of flooding.

HUD Option: Displays your PPO2 information while in dive mode and other information in standby mode. The HUD incorporates a rotating shade and has a colour-blind mode. Alternative to the HUD is ODA – Optical Display Adapter which displays your dive information on the screen right in front of your eye.

ODA Option: An alternative to choose from instead of the HUD. Get the most important information about your dive in real-time right in front of your eye. The ODA also features a built-in compass and buddy display.

Buddy Display: The Buddy Display either glows/flashes green or red and keeps your buddy aware of the function of your unit.

Air Integration: Wireless integration with pressure sensors significantly simplifies gas pressure checks in both cylinders. This reliable system provides simplicity and increases awareness by displaying the cylinder’s pressure on the user’s handset in graphical or numerical form. The unit is also able to calculate the estimated metabolic oxygen consumption. The Air Integration allows you to detect leaks from 1st stage regulator/cylinder valve connection as a part of your Pre-Dive check.

Closed Cylinder Detection: This feature significantly increases the safety of the diver. When the unit is used in conjunction with Air Integration, if the unit enters dive mode with closed cylinders, or looses the high pressure the system warns the diver with a visual warning message and handset vibration about low pressure in the system.

Build in Gas Analyzer: Use your Head as a gas analyser if. You can also analyse helium mixes as long as your Helium content is over 30% when used with Helium sensors.

Bluetooth Connection: Wireless connection to a mobile phone or desktop computer will make downloading your dive logs and updating your firmware versions enjoyable and significantly more efficient. Liberty communicates with the desktop application “Divesoft.center” for Windows and iOS and a mobile application “Divesoft.app”for Android and iPhone.

Built in Pre-Dive check: The semi-automatic pre-dive check verifies that all electronic systems, sensors, and solenoid valves are under your control. In simple 11 steps, you can quickly very your unit is ready to dive.

Pressure Tests done in 1 Minute: The positive and negative pressure test is done in 1 minute each. This accurately detects any leaks of the breathing loop to prevent flooding. Simply evacuate/inflate the loop until the unit tells you to stop and starts a 60 sec. countdown. You can monitor your actual loop pressure within 0,1 millibar. Assurance that your unit is safe to dive.

ADV: The Diaphragm Automatic Diluent Valve is integrated into the counter lung t-piece to allow for diluent gas addition to create optimal loop volume

Cordura Counterlungs with OPV: Sleek counterlungs placed on your shoulder with OPV that has dump valve pull placed on your shoulder to make sure you’ll find it always in the same place. The CL’s are made easy to remove for cleaning

Manual Addition Valve: Divesoft offers an unique system of MAVs included in every BMCL configuration. The MAVs placed on the mouthpiece remove the need of hoses and valves on your chest. Due to its positioning on the mouthpiece, they are very easy to find being always in the same place.

Flood Tolerance: The back mounted counterlungs are well resistant to flooding. With the benefit of pull dump routed on the shoulder making DIL flush a breeze.

Canister Sizes: Liberty CCRs use a radial type scrubber for the best work of breathing, flood tolerance, and heat insulation. Standard Scrubber holds 5.58lbs and offers a duration of 4-6 hours. The XL Scrubber holds 7.26lbs and offers a duration of 5-8 hours. Both have a water trap

Cylinders: This unit comes with 3L / 23cu/ft HP Steel cylinders with inline valves

Building your Unit:

Choose from BOV / DSV

DSV:

DSV is a simple and reliable mouthpiece which has 2 operating positions:

Opened (Dive mode)

Closed (Surface mode)

DSV FEATURES

1. Simple and reliable.
2. Streamlined and light design.
3. In all the backmount configurations with back mounted counterlungs and the sidemount configuration the DSV comes fitted with Manual Addition Valves (MAVs) which are located next to your mouth. "Find your mouth, find your MAVs."
4. All the mouthpieces are fitted with original Draeger mushroom valves.

Bailout Valve: 

The Divesoft BOV allows you to switch to Open Circuit with one turn. It has 2 operating positions:

Closed Circuit Mode

Open Circuit Mode

BOV FEATURES

1. Robust and reliable.

2. Manual addition valves (MAVs) are located next to your mouth in all backmount units with BMCL configurations. "Find your mouth, find your MAVs".

3. BOV utilizes adjustable original APEKS 2nd stage for the best breathing performance.

4. All the mouthpieces are fitted with original Draeger mushroom valves.

Choose from Doughnut or Horseshoe Wing

Horseshoe:

A horseshoe BCD is commonly used in technical diving. 22l volume of the wing provides sufficient lift to neutral or positive buoyancy even when the unit is completely flooded. The tough CORDURA 2000 is used for maximum endurance.

Doughnut:

Doughnut style wing provides real stability. It allows you to dump the gas from the entire wing in all positions and does not make any air pouches. Additional lift in the backside helps divers to move forward their center of mass. It is especially useful when using a wetsuit or short suit or when the diver has “heavy legs”. Thanks to a better gas distributin it is slimmer and narrower than a standard horseshoe BCD.

22l volume of the wing provides sufficient lift to neutral or positive buoyancy even when the unit is totally flooded. The tough CORDURA 2000 is used for the maximal endurance.

Choose Your Scrubber Size

Standard 5.58lb

The inner scrubber is made from very fine stainless steel mesh, the lid is made from thick plastic. It allows very comfortable filling. Opening and closing is very quick and simple. The functional and reliable water trap is placed in the bottom. During the stress test according to standard EN 14143:2013 there was proven that the scrubber duration is 2 h 48 min. The test conditions were 4°C, breathing 40 l/min, CO2 production 1.6 l/min. Usual stack time is 4 hours in cold water and 6 hours in warm water with moderate effort.

XL 7.25lb:

The extra large scrubber design reduces the inner space. The lid is made from a thin stainless steel plate, scrubber walls are made out of a stainless steel mesh, water trap is reduced to minimum. This allows us to keep the same outer dimensions with bigger inner volume and scrubbing capacity. It is possible to use this scrubber for 5 hours in cold water or up to 8 hours in warm water and moderate effort.

Choose Your Stand

Stainless Steel - Standard Size

Standard stand is short and compact. For that reason it is intended for overhead environment where space is limited. Shorter length is beneficial for ladies or men of smaller stature. It weights 0.9 kg (2 lb).

The stand is an integral part of Liberty backplate. It has four main functions: to keep the unit standing when on the land, canister support (part of the canister locking system), lumbar support for the diver (unit itself is uncomfortably short), 1st stage regulator protection.

Stainless Steel - Long and Wide

Long and wide stand provides extra stability when on the land, the unit stays secure even on a boat or a bumpy surface. The longer stand is beneficial for men or taller ladies because it provides better lumbar support and much better comfort when putting the unit on and off and sitting on the bench or inflatable tube of the boat. The inner space of the stand is big enough for you to attach an argon tank to it. It is possible to attach additional D-rings directly to the stand for attaching bailout cylinders or other gear. Weight of stainless steel LONG&WIDE Stand 1.3 kg (2.9 lb).

The stand is an integral part of Liberty backplate. It has four main functions: to keep the unit standing when on the land, canister support (part of the canister locking system), lumbar support for diver (unit itself is uncomfortably short), 1st stage regulators protection.

Titanium - Standard Size

Standard stand is short and compact. For that reason it is intended for overhead environment where space is limited. Shorter length is beneficial for ladies or men of smaller stature. It weights 0.4 kg (0.9 lb).

The stand is an integral part of Liberty backplate. It has four main functions: to keep the unit standing when on the land, canister support (part of the canister locking system), lumbar support for the diver (unit itself is uncomfortably short), 1st stage regulator protection.

Titanium - Long and Wide

Long and wide stand provides extra stability when on the land, the unit stays secure even on a boat or a bumpy surface. The longer stand is beneficial for men or taller ladies because it provides better lumbar support and much better comfort when putting the unit on and off and sitting on the bench or inflatable tube of the boat. The inner space of the stand is big enough for you to attach an argon tank to it. It is possible to attach additional D-rings directly to the stand for attaching bailout cylinders or other gear. Weight of stainless steel LONG&WIDE Stand 0.6 kg (1.3 lb).

The stand is an integral part of Liberty backplate. It has four main functions: to keep the unit standing when on the land, canister support (part of the canister locking system), lumbar support for diver (unit itself is uncomfortably short), 1st stage regulators protection.

HUD / ODA

HUD

Displays your PPO2 information while in dive mode and other information in standby mode. The HUD incorporates a rotating shade and has a colour-blind mode. Alternative to the HUD is ODA – Optical Display Adapter which displays your dive information on the screen right in front of your eye.

ODA:

Optical Display Adapter (ODA) provides divers with a constant overview of the most important CCR diving data. The diver has all the data right in front of his eyes, which significantly increases the comfort and safety of diving.The full colour display has a very fine resolution and displays the most important data for a CCR:- Current loop ppO 2 , Setpoint, Depth, Dive time, Decompression, Ascent rate, OXY/DIL pressure, Graphics indicator of O2 sensor values in bar graphCOMPASSODA has a built-in tilt compensated compass.FLASH WARNINGSThe diver is always warned quickly by red flashes if safe values ​​are exceeded.BUDDY DISPLAYThe front buddy display warns your diving partner, who can provide you with immediate assistance in the event of an emergency.OPTICS AND DISPLAYODA optics are made of top-quality sapphire glass with an anti-reflective coating. This ensures a clear view of the display without glare. The optics work on the principle of a collimator, so it not only enlarges the display of the miniature display, but also allows you to monitor the display and the environment at the same time.Diver can adjust the focus of the optics for their eyesight using the focusing ring on the eyepiece. At the same time, it can determine whether the display will have a right or left eye, according to its dominant eye, using an adjustable mount.The adjustable mount is stable enough to withstand riding a scooter, so you will always have ODA in front of your eyes. The ODA is connected via a HUD / BD connector to the Liberty 2021 Edition head. The display itself is attached to the DSV or BOV on the rail in the same way as the HUD.Using a luxmeter, the ODA can determine the amount of ambient light and automatically adjust the brightness of the display. ODA is thus readable in all conditions from direct sunlight to complete darkness.OTHER FEATURESODA does not need to be charged because it is powered by the Liberty CCR.The display is connected via a super durable and flexible cable.The hydrodynamic design of the ODA prevents the ODA from moving on the holder during scootering.ODA is only compatible with Liberty 2021 Edition. If you want to use ODA on your Liberty, find out about upgrade options here.

ODA Technical specification

Max depth: 300m (984 ft)

Diameter: 39.4 mm (1.55 inch)

Length: 66.5 mm (2.62 inch)

Weight without holder: 150 g (0.33 lb) connector and cable included

Buoyancy: neutral

Body: Delrin

Optics: Sapphire glass with anti-reflex coating

Display resolution: 428 x 240 pixels

Focus: Fully adjustable

Quick Releases

The quick release system allows you to take the unit off very quickly. It is very comfortable, easy and also very helpful especially when the unit is taken off on a boat. The buckle is made out of stainless steel and it is almost impossible to destroy it. You have to press both levers at once to open the buckle – this prevents accidental opening of the buckle.

Please consider on which side to place the quick release buckle. The position of drysuit dump valve and placing additional gear on the harness has to be taken into consideration.

Helium Sensors:

(x2) Helium Sensors

The two helium sensors ensure that even in case of failure of all oxygen sensors, you still have a reliable method of measuring partial pressure of oxygen in your apparatus.

Protection Set:

Liberty Protection Set:

The set contains:

- Set of covers for corrugated hoses

- Protective sleeve for handset cable – 2 Pcs

- Silicone protective sleeve for handset – 2 Pcs

- Head protector

- Travel head cover

- Scrubber cover with Stickers

- Spare Stickers for scrubber cover

Swift Transmitters:

Add Transmitters to read your cylinder pressure on your Handset. You will be able to choose if you would like your pressure to be displayed as a bar graph or the exact pressure value. 

Transport Case:

Divesoft transport cases are our watertight line, which was created to offer superior protection from the elements, water, dust and impacts when transporting Liberty, fragile and valuable objects.

External dimensions: 816 x 540 x 426 mm / 32.12 x 21.26 x 16.77 inch

Internal dimensions: 750 x 480 x 400 mm / 29.52 x 18.90 x 15.75 inch

Cover depth - bottom: 60 + 340 mm / 2.36 + 13.38 inch

Weight: 12.10 Kg

Capacity: 144,00 Lt

Range temperatures: -30 / 90 °C, -22 / 194 °F

Training for CCR Liberty

Here at Dive Right In Scuba we work with a full time Liberty CCR Instructor who can conduct cross overs or full CCR courses to train you on your new unit. Inqurie with our sales and technical training department today

SPECS:

Dimensions