• SCUBA diving requires certification from a recognized training agency. Uncertified use is dangerous.
• The regulator is not for commercial use with surface-supplied air.
• Pressurize the regulator slowly and avoid using lubricants or aerosol sprays.
• Annual service by an authorized Apeks dealer is mandatory.
• Special training is required for cold water diving.

Apeks regulators are designed to meet high standards and come with a Limited Lifetime Warranty. Proper care and regular dealer service are crucial for optimal performance.

• Regulators are compatible with EAN up to 40% oxygen.
• Special training for EAN use is required.
• Maintain internal cleanliness and use oxygen-compatible air when switching between EAN and regular air.

• Second Stage Hose Configuration and Diver Changeable Exhaust System (DCE).
• External adjustments include Venturi Switch and Inhalation Resistance Control Knob.
• Cold water protection features for both first and second stages.

• Proper hose attachment and first stage connection to cylinder valves (Yoke and DIN).
• Use of DIN to Yoke Converter when necessary.

• Pre-dive inspection checklist and guidelines for diving in cold water.
• Post-dive care includes proper removal from cylinder valves and maintenance tips.

• Regular cleaning and storage guidelines to prevent damage.
• Avoid solvents and petroleum-based substances.

• Annual service is required regardless of usage.
• More frequent service may be needed for rental or training equipment.

• Limited Lifetime Warranty covers defects in materials and workmanship.
• Warranty is void if used by untrained individuals or if unauthorized repairs are made.

The document outlines the importance of using breathing air that conforms to EN12021 standards. It highlights that Grade E breathing air may contain hydrocarbons, which can pose a risk when in contact with high-pressure oxygen-enriched air, potentially leading to combustion. Regulators used with Grade E air should be serviced and cleaned before being used with nitrox.

The Apeks regulator range includes models suitable for various diving conditions, from sport diving to extreme environments. Key features include the option for left or right-hand hose configuration and the Diver Changeable Exhaust (DCE) system, which allows divers to customize their exhaust diffusers.

Proper maintenance is crucial for optimal performance and longevity of the regulator. After each use, the regulator should be rinsed with fresh water while pressurized, soaked in warm water, and dried thoroughly to prevent moisture ingress.

Special precautions are necessary for cold water diving, defined as temperatures below 10°C (50°F). The document advises on measures to prevent regulator freeze-up, such as ensuring dry air in cylinders and protecting equipment from cold temperatures.

The document describes the integrated venturi system (IVS) and inhalation resistance control knob, which allow divers to adjust the regulator's sensitivity and airflow according to diving conditions. These features help maintain peak performance and prevent free-flowing.

Warnings are provided regarding the risks of diving in cold water and deep diving without proper training. The document emphasizes the importance of certified training and using equipment designed for specific conditions to avoid serious injury or death.

Before each dive, perform a thorough inspection of your regulator. Ensure all hoses are securely connected and free from damage. Inspect both the first and second stage regulators for external damage. For environmentally sealed first stages, check the external diaphragm for damage and ensure the retainer is secure. If any issues are found, do not dive until serviced by an authorized dealer.

Connect the first stage to a fully charged SCUBA cylinder, ensuring the valve is opened slowly to avoid over-pressurization. Adjust the inhalation control knob for optimal breathing ease without leakage.

The Egress is a versatile second stage suitable for all diving conditions, featuring a side exhaust and hose layout for flexible use. It includes thermo-dynamic heat exchanger technology for cold water diving.

Apeks offers a DIN to Yoke converter for switching between connection types. Ensure factory installation of the DIN connector and avoid using adaptors from yoke to DIN cylinder valves.

Some Apeks first stages feature a "DRY" sealing system to prevent ice formation and extend diaphragm life. However, this does not fully prevent second stage icing.

Most Apeks second stages include a heat exchanger to reduce freeze-up risk. Refer to the cold water diving section for more details.

It is recommended to have accessories installed by an authorized dealer. If self-installing, ensure medium pressure hoses are not connected to high pressure ports to prevent bursting.

Follow specific steps for DIN or yoke connections, ensuring valves are opened slowly to minimize heat generation and prevent combustion risks, especially with Enriched Air Nitrox (EAN).

High pressure ports on regulators are marked 'HP' and are used for instrumentation and air integrated computers. When attaching a hose to the first stage regulator, ensure the O-ring is in good condition and tighten the hose to 46 kg/cm using a spanner, taking care not to damage the chrome plating.

Open valves slowly to avoid over-pressurisation, especially with Enriched Air Nitrox (EAN) to prevent combustion. To attach a DIN-style first stage, remove the protector cap, release a small amount of air to clear debris, and hand-tighten the first stage DIN connector. Check for leaks and address any issues before proceeding.

Apeks offers a DIN to Yoke converter for switching between connections. However, adaptors from yoke to DIN cylinder valves should not be used due to pressure limitations.

Some Apeks first stages feature a 'DRY' environmental sealing system to prevent ice formation and extend diaphragm life, though it does not prevent second stage freezing.

Most Apeks second stages include a thermo-dynamic heat exchanger to reduce freeze-up risk. For cold water diving, ensure proper training and equipment maintenance.

Inspect hoses, regulators, and sealing diaphragms for damage. Connect the first stage to a charged cylinder and pressurise slowly. Adjust inhalation controls for ease of breathing.

The Egress second stage is versatile, suitable for use in all conditions, and incorporates heat exchanger technology for cold water diving.

Some models have an inhalation resistance control knob to adjust breathing effort, useful in varying conditions.

Cold water diving requires specific training and equipment. Follow procedures to prevent freeze-up and ensure air supply integrity.

Adjustments allow sensitivity control to maintain performance or prevent free-flow. The integrated venturi system (IVS) assists in airflow management.

Rinse the regulator in fresh water before depressurising to prevent contamination.

Apeks regulators are designed and manufactured to meet high standards, covered by a Limited Lifetime Warranty against defects. Proper care, maintenance, and regular dealer service are crucial for optimal performance.

Yoke Connector: Shut off the air supply, depress the purge button until the gauge reads zero, loosen the yoke screw, dry the dust cap, and secure it over the first stage inlet.
DIN Connector: Similar steps as the Yoke Connector, with additional care to blow out or wipe water from the protector cap.

The DCE allows divers to choose between a compact or longer exhaust diffuser to prevent bubble interference. Diffusers can be easily changed by pressing a button and sliding them apart.

The Apeks XTX range offers unique features like left or right hand hose configuration and the DCE. Hose routing changes must be performed by an authorized technician.

After each use, ensure the regulator is cleaned and inspected. Rinse with fresh water, soak in warm water, and avoid pressing purge buttons when unpressurized. Store in a dry, clean environment away from extreme conditions.

Regulators are compatible with EAN up to 40% oxygen. Proper training and maintenance are essential. If used with Grade E air, overhaul service is required before using with nitrox.

Annual service by an authorized dealer is mandatory. More frequent service may be needed based on usage and conditions. Unauthorized disassembly voids the warranty.

The Limited Lifetime Warranty covers defects in materials or workmanship for the original purchaser. It does not cover misuse or unauthorized service.

• SCUBA diving requires instruction and certification from a recognized agency. Uncertified use is dangerous.
• The regulator is not for commercial use with surface-supplied air.
• Pressurize the regulator slowly and avoid using lubricants or aerosol sprays.
• Annual service by a factory-trained technician is mandatory.
• Do not leave the cylinder standing unsecured or carry equipment by the first stage.
• Cold water diving requires specific training.

• Excludes normal wear, improper use, and cosmetic damage.
• Not applicable for rental, commercial, or military use.
• Service must be performed by an authorized dealer annually.

• Service or warranty considerations require visiting an authorized dealer with a sales receipt and service record.

• Includes sections on enriched air nitrox, features, hose configuration, and cold water protection.
• Details on preparation, setup, and diving procedures.
• Care, maintenance, and dealer service instructions provided.

• Apeks Marine Equipment Ltd., Neptune Way, Blackburn, Lancashire, England.
• Website: www.apeks.co.uk