INTERSPIRO Divator RS4 Air Regulator User Manual

INTERSPIRO Divator RS4 Air Regulator

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Introduction and safety

Safety terminology and symbols
In this document, the terms WARNING and NOTICE are used to indicate potential hazards. Read the accompanying information carefully and follow the safety instructions.

WARNING
The WARNING type of hazard statement signifies that there is a risk of serious injury or death.

NOTICE
The NOTICE type of hazard statement signifies that there may be a risk of damage to equipment or property.

Safety notice
This product, supplying breathing gas to the user, has been tested in accordance with EN250, and is to be used according local regulations. It is approved for a range of 0-50 meters (0-164 feet) depth and for cold water temperatures down to 4 ± 2 °C (39,2 ± 3,6 °F) in accordance with EN 250. Manufacturer: Interspiro AB, Box 2853 18728 Täby Sweden Interspiro is not responsible for:

• combinations of products, unless put to market by Interspiro
• changes or adaptations made to the product by a third party

WARNING

• BEFORE USING THE DIVATOR RS4, THE USER MUST HAVE RECEIVED FULL TRAINING IN ITS USE, HAVE READ AND UNDERSTOOD THESE OPERATING INSTRUCTIONS AND DEMONSTRATED PROFICIENCY TO A RESPONSIBLE TRAINER OR SUPERVISOR. FAILURE TO DO SO MAY RESULT IN INJURY OR DEATH FOR THE USER AND CAN HAVE SERIOUS CONSEQUENCES FOR PEOPLE TO BE RESCUED AND/OR ITEMS OF VALUE TO BE SAVED.
• ALL USERS OF THE DIVATOR SYSTEM MUST BE CERTIFIED BY A NATIONALLY OR INTERNATIONALLY RECOGNIZED SCUBA CERTIFICATION AGENCY. FURTHERMORE, ALL USERS OF THE DIVATOR SYSTEM MUST BE ADEQUATELY TRAINED IN ITS USE BY A CERTIFIED SCUBA INSTRUCTOR WITH KNOWLEDGE AND EXPERIENCE IN THE USE OF THE DIVATOR DIVING SYSTEM.
• ALL USERS OF THE DIVATOR SYSTEM MUST PERIODICALLY UNDERGO TRAINING IN EMERGENCY PROCEDURES IN SHALLOW WATER TO MAINTAIN PREPAREDNESS IN THE EVENT OF AN ACTUAL EMERGENCY.
• HIGH PRESSURE GAS SYSTEMS MUST BE HANDLED WITH CARE. DAMAGE TO HIGH PRESSURE GAS SYSTEM COMPONENTS MAY RESULT IN INJURY OR DEATH. INTERSPIRO IS NOT LIABLE FOR DAMAGES INCURRED AS A CONSEQUENCE OF FAILURE TO FOLLOW THE INSTRUCTIONS IN THIS MANUAL
• THE BREATHING AIR SHALL MEET THE REQUIREMENTS FOR BREATHABLE AIR ACCORDING TO EN 132 ANNEX A, OR SIMILAR PURITY REQUIREMENTS.

Product description

Main components

1. Regulator, first stage
2. Anti-freeze device (maintenance free)
3. Pressure gauge, displaying pressures from 0 to 300 bar, or 0 to 4350 Psi (photo shows pressure gauge with optional compass and depth gauge)
4. High pressure hose
5. Quick connector for DP1 with protective rubber cap (optional)
6. Dry suit hose (optional)
7. Octopus hose (optional)
8. BC hose (optional)
9. Breathing hose for full face mask or breathing valve with mouth piece (optional)
10. Parking plug (optional)

Divator RS4 regulator versions

The RS4 Regulator is available with DIN or YOKE connection. It can be configured with one or two LP covers and with or without DP1 Surface supply connection. The DIN versions are using one HP connection for a parking plug for keeping the dust cover in place during the dive.

LP connections

• 2 LP outlets (3/8”) are available on each cover. They can be used to connect breathing/octopus valves, dry suits, BC hoses or any additional LP hoses.

HP connection

• The regulator has 2 HP outlets (7/16”). They can be used to connect a pressure gauge, the Divator HUD or other HP devices.

DP1 connection

• The DP1 connection is added to the top cover of the RS4 regulator to connect to the P+ regulator of the Divator DP1 surface supply system.

NOTICE
If the RS4 regulator shall be used without a Divator breathing valve (which can release overpressure) connected to it, it must be equipped with a relief valve.

1. Yoke cylinder connection. One LP cover with one safety valve.
2. DIN cylinder connection. Pressure gauge hose. Two LP covers.
3. DIN cylinder connection. Pressure gauge hose. Two LP covers. DP1connection.

Preparation

The RS4 SCUBA can be used in different configurations. Follow this chapter in applicable parts.

Adjusting the Divator RS4 before the first use
Adjust the RS4 into a mode that suits your SCUBA configuration before the first dive. Use the included 2 mm (5/64 inch) hexagonal (Allen) key.

1. Turn the screws anti-clockwise maximum 1 turn until it is possible to turn the cover(s).
2. Turn the cover(s) into desired position.
3. Tighten the screws until the cover(s) become locked in their position(s).
4. Make sure that the screws are tightened evenly.
5. Traditional regulator hose mounting.
6. Parallel regulator hose mounting.

Assembling the Divator RS4 on the cylinder
Assemble the RS4 regulator onto the high pressure outlet on the cylinder, either in the “parallel” mode or in the traditional “standard” SCUBA mode (as seen on images).

Attaching a device to the second high pressure outlet
It is possible to attach a HUD or other HP device to the second high pressure outlet fitted with a parking plug. This procedure must be performed by an Interspiro certified service technician according the RS4 service manual.

Attaching and directing hoses on Divator BC use
Installation of hoses must be made by an Interspiro certified service technician according the RS4 service manual.

Connecting the breathing hose

1. Connect the breathing hose to the full face mask (or mouthpiece) by tightening it fingertight.
2. If an over pressure mask is fitted, close the lever on the breathing valve.

Connecting the inflation hose

1. Put the inflation hose for the BC over the left shoulder along the corrugated inflation hose and connect it to the power inflator.
2. Adjust the hose length so that both hoses are parallel.

Connecting the octopus breathing hose and valve

1. Connect the hose to the octopus breathing valve by screwing it on finger tight. Close the Lever on the octopus breathing valve.
2. Make sure the hose is held in place and that there are no protruding parts that can get stuck in anything.

Attaching the RS4 regulator pressure gauge
Fasten the elastic cord with hook (attached on the pressure gauge) on a suitable D-ring on the BC. Make sure it is easily accessible during the dive.

Connecting the Divator DP1 hose

1. Connect the RS4 quick connector for DP1 to the DP1 P+ regulator.
2. Tighten the locking ring fully. Loosen it a quarter of a turn.
3. Connect the DP1 surface supply hose with the hook to the diving apparatus. For further instructions see the DP1 surface supply user manual.

Pre-dive procedures

Overall check

1. Make sure that the RS4 regulator is clean and free from sand and/or debris from previous use.
2. Inspect the regulator to detect if it has any signs of damage. A damaged or defective regulator must be replaced or repaired by an Interspiro certified service technician.
3. Check all hoses by pulling and bending them while inspecting for damage, cracks and discolouration. If the high pressure hose to the pressure gauge is found to be defective or damaged, it must be replaced by an Interspiro certified service technician.
4. Check that the protective band is attached to the relief valve otherwise replace it with a new protective band (part number 346 190 053, 10-pack).

WARNING
The air loss caused by a break in the dry-suit hose is just as great as that caused by a break in the breathing hose.

The RS4 regulator has a restrictive orifice in the high pressure hose that limits the air flow to the pressure gauge. The restriction protects the user and the equipment if the hose burst.

Checking O-rings
O-rings that are exposed to sunlight, salt water, chemicals (including mild detergents), and ozone suffer ageing and may become defective.

1. Check all visible O-rings.
2. Replace all cracked or damaged O-rings.

If using a DIN connection and the O-ring on the regulator connection nipple comes off: Put a new O-ring (part number 336 190 272, 10-pack) on the nipple by pushing it in place.

Leakage and function test of the Divator RS4 regulator.

1. Assemble the diving apparatus.

2. If using the primary breathing valve with safety pressure lever, make sure that the safety pressure lever is in closed position.

3. Open the cylinder valve slowly and observe the pressure gauge. Check that the pointer moves normally and smoothly. If the pointer moves irregularly or not at all, the pressure gauge is faulty. When the cylinder valve is fully open, then close it a quarter turn.

4. Check the pressure gauge to make sure that there is enough air pressure in the cylinder for the planned dive. Interspiro recommends that the cylinder should be full before every dive.

5. If using a BC and/or a dry-suit. Check that they can be inflated by activating the inflation function. Also check that the dump valves are functional.

6. If using a primary breathing valve with safety pressure, turn the safety pressure lever to the open position. Check that a strong flow of air is heard. Reset the safety pressure lever to the closed position.

   • If using a primary breathing valve without safety pressure, press the purge button on the breathing valve. Check that a strong flow of air is heard. Release the purge button.

7. If using an octopus breathing valve together with the primary breathing valve, press the purge button on the octopus breathing valve. Check that a strong flow of air is heard. Release the purge button. Close the locking lever against the valve housing.

8. Test the entire system for leaks with the following steps:

   • Close the cylinder valve.
   • Wait for one (1) minute.
   • Listen for leaks.
   • Open the cylinder valve while watching the pressure gauge.
   • Check that the needle does not rise by more than 10 Bar (145 Psi).
     WARNING
     If leakage is greater than the specified value, another leakage has been located or if the equipment is found to be defective or damaged, the equipment must be repaired by an interspiro certified service technician.

9. Close the cylinder valve.

10. Check that the pressure gauge needle moves evenly while venting the system by pressing the purge button (or turning the safety pressure lever to open) on the breathing valve.

Checks during diving

1. Check the pressure gauge repeatedly to monitor air consumption. Terminate the dive with ample air pressure to be able to return safely to the surface or to the entry point of the dive.
2. Check for leaks or abnormal behavior of the RS4 regulator (small bubbles will occasionally leave the anti-freeze device and are expected when ascending, this is natural).
3. Check that optional equipment fitted to the RS4 regulator can be reached and managed.
4. If using a DP1 surface supply together with the RS4 regulator, check that air is not consumed from the worn cylinder. See the DP1 surface Supply user manual for additional details.

WARNING

• When diving with the RS4 regulator the diver´s only warning of low air pressure is by repeatedly monitoring the pressure drop of the pressure gauge.
• If using the DP1, the only indication that the diver has switched from surface supply to the scuba cylinder (bail out) is a decrease in the diver´s pressure gauge.

Post-dive procedures

1. If connected, disconnect the DP1 hose.

2. Pressurize the RS4 SCUBA.

3. Rinse all parts of the RS4 SCUBA in clean water. If the equipment is very dirty, use a brush and a neutral cleaning agent for extended cleaning.

4. Close the cylinder valve.

5. Press the purge button on the breathing valve to vent the regulator. Venting may take as long as 30 seconds. The O-ring sealing between the regulator and the cylinder valve may be damaged if it is removed when there is pressure remaining.

6. Remove the RS4 regulator from the cylinder.

7. Allow all regulator parts to dry.

8. Blow any moisture out of the cylinder valve by opening the valve and allowing air to escape for 1 to 2 seconds.
   WARNING
   Blow-off noise and pressure surges may cause hearing damage. Always use ear protectors when filling and emptying air cylinder packs.

9. Put the dust cover on the regulator connection nipple for protection.

10. If the equipment is faulty or damaged, it must be repaired or replaced by an Interspiro certified service technician.

11. The equipment shall be thoroughly dried if it is to be stored in a bag/box for more than a few hours.

Transport and storage

• All rubber parts shall be stored in dry conditions, well protected from direct sunlight and extremes of temperature in a sealed plastic bag.
• During transport, the equipment shall be stored so that the equipment cannot be damaged and people cannot be injured.
• The equipment shall not be stored where the temperature may be expected to go above 70ºC (158°F). The equipment must be completely dry before being put into storage.
• The DIN connection can be equipped with a dust cover (part number 31 392-51, 10-pack) that protects the high pressure outlet during transport and storage.

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