1. Bubuka
This manual provides essential information for the safe and effective use of your Scubapro MK25 EVO/S600 Scuba Diving Regulator. The MK25 EVO first stage and S600 second stage combination is designed for high performance and reliability in various diving conditions. Please read these instructions thoroughly before use.
The MK25 first stage is a balanced piston design, known for its stable intermediate pressure and consistent air delivery. The S600 second stage is an air-balanced, high-performance unit with adjustable features to suit diver preferences and environmental conditions.
2. komponén Leuwihview
The Scubapro MK25 EVO/S600 regulator system consists of two primary components:
2.1. MK25 EVO First Stage

Figure 1: Scubapro MK25 EVO First Stage Regulator. This image shows the chrome-plated brass body of the first stage, featuring multiple low-pressure ports on a swivel turret and two high-pressure ports.
The MK25 EVO is a balanced piston first stage constructed from chrome-plated brass. It features an anti-freeze protection system for cold water diving. Key features include:
- Air balanced flow-through piston design.
- Five low-pressure ports on a swivel turret for optimal hose routing.
- Two high-pressure ports for pressure gauges or transmitters.
- Externally adjustable intermediate pressure.
- Available with INT 230 bar or DIN 300 bar tank connections.
2.2. S600 Second Stage

Figure 2: Scubapro S600 Second Stage Regulator. This image displays the black and chrome second stage with the Scubapro 'S' logo, showing the mouthpiece and the diver-adjustable controls.
The S600 is an air-balanced second stage designed for effortless breathing. It incorporates several diver-adjustable controls:
- Air balanced valve for constant and effortless airflow.
- Diver-adjustable inhalation effort control.
- Diver-adjustable Venturi-Initiated Vacuum Assist (VIVA) dive/pre-dive control switch.
- High comfort orthodontic mouthpiece.
- Full metal valve housing for durability.
- Super-flow hose for smooth air delivery.

Figure 3: Complete Scubapro MK25 EVO/S600 Regulator System. This image shows both the first stage jeung kadua stage connected, ready for attachment to a scuba tank.
3. Parentah Setup
Proper setup is crucial for safe diving. Follow these steps carefully:
- Mariksa komponén: Before each dive, visually inspect all components of the regulator for any signs of damage, wear, or corrosion. Ensure hoses are securely attached and free from kinks.
- Connect First Stage to Tank Valve:
- DIN Connection: Screw the DIN connector of the first stage directly into the tank valve until hand-tight. Do not overtighten.
- Yoke (INT) Connection: Place the yoke connector over the tank valve. Ensure the O-ring on the tank valve is present and in good condition. Tighten the yoke screw firmly by hand.
- Pasang Selang: Connect all necessary hoses (e.g., low-pressure inflator hose to BCD, submersible pressure gauge (SPG) to high-pressure port, alternate air source) to their respective ports. Ensure all connections are secure.
- Open Tank Valve: Slowly open the tank valve fully. Listen for any leaks. The SPG should show the tank pressure.
- Test Second Stage:
- Breathe from the S600 second stage to ensure air flows freely and easily.
- Check the Venturi-Initiated Vacuum Assist (VIVA) switch. In the "pre-dive" position, the regulator should not free-flow. In the "dive" position, it should be ready for use.
- Adjust the inhalation effort knob if necessary to achieve comfortable breathing.
- Pariksa bocor: Submerge the entire regulator assembly in water (if possible) or listen carefully for any air leaks.
Warning: Never attempt to dive with a regulator that shows signs of damage or leakage. Consult a certified Scubapro technician for repairs.
4. Parentah Operasi
The Scubapro MK25 EVO/S600 regulator is designed for intuitive operation. Familiarize yourself with its adjustable features:
4.1. S600 Second Stage Panyaluyukeun
- Diver-Adjustable Inhalation Effort Control: This knob allows you to fine-tune the breathing resistance. Turn clockwise for increased resistance (firmer breath) or counter-clockwise for decreased resistance (easier breath). Adjust to your personal preference for comfort and air consumption.
- Venturi-Initiated Vacuum Assist (VIVA) Switch: This switch helps prevent free-flow on the surface or when the regulator is not in your mouth.
- "Pre-Dive" Position: Reduces the likelihood of free-flow. Use this setting before entering the water or when the regulator is out of your mouth.
- "Dive" Position: Activates the Venturi assist, making breathing easier and more efficient during the dive. Switch to this position once you are in the water and ready to breathe from the regulator.
4.2. Salila Nyelam
- Breathe naturally and calmly. The balanced design of the S600 ensures consistent air delivery regardless of depth or tank pressure.
- Monitor your submersible pressure gauge regularly to track your air supply.
- In case of any breathing difficulty, switch to your alternate air source immediately and ascend safely.
4.3. Post-Dive Procedures
- Close Tank Valve: Slowly close the tank valve completely.
- Purge Regulator: Depress the purge button on the second stage to release any remaining pressure in the system. This will cause the SPG needle to drop to zero.
- Disconnect First Stage:
- DIN Connection: Unscrew the DIN connector from the tank valve.
- Yoke (INT) Connection: Loosen the yoke screw and remove the first stage from the tank valve.
- Rinse Regulator: Immediately rinse the regulator thoroughly with fresh, clean water. Ensure the dust cap is securely in place on the first stage before rinsing to prevent water from entering the internal mechanism. Do not depress the purge button while rinsing unless the first stage is pressurized, as this can force water into the first stage.
5. Pangropéa
Regular maintenance is essential to ensure the longevity and safe operation of your Scubapro regulator.
- Bilas: After every dive, rinse your regulator thoroughly with fresh, clean water. Ensure the first stage dust cap is securely in place before rinsing. Do not press the purge button during rinsing unless the regulator is pressurized, as this can allow water to enter the first stage.
- Pangeringan: Allow the regulator to air dry completely in a shaded, well-ventilated area before storage. Avoid direct sunlight.
- Panyimpenan: Store your regulator in a cool, dry place, away from direct sunlight, extreme temperatures, and chemicals. Avoid kinking hoses during storage.
- Layanan Taunan: It is highly recommended to have your Scubapro regulator professionally serviced by an authorized Scubapro technician annually, or after 100 dives, whichever comes first. This ensures optimal performance, safety, and maintains your product warranty.
- Hindarkeun pelumas: Do not use any petroleum-based lubricants or sprays on your regulator, as these can damage O-rings and other components.
6. Cara ngungkulan
This section addresses common issues you might encounter with your regulator. For any problems not listed here, or if you are unsure, consult a certified Scubapro technician.
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Free-Flowing Second Stage |
|
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| Hard Breathing / Restricted Airflow |
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| Leakage hawa |
|
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7. Spésifikasi
Technical specifications for the Scubapro MK25 EVO/S600 Regulator System:
| komponén | Spésifikasi | Nilai |
|---|---|---|
| MK25 EVO First Stage | Tipe | Air balanced flow-through piston |
| Bahan Awak | Chrome dilapis kuningan | |
| Cold Water Protection | Anti-Freeze protection | |
| Tekanan panengah | Externally adjustable | |
| Low Pressure Ports | 5 on swivel turret | |
| High Pressure Ports | 2 | |
| Sambungan tank | INT 230 bar / DIN 300 bar | |
| Weight (INT 230) | 825g / 29.1 oz | |
| Air Flow at 200bar | >8500 l/min - 301 SCFM | |
| S600 Second Stage | Tipe klep | Air balanced valve |
| Inhalation Control | Diver-adjustable | |
| VIVA Control | Diver-adjustable (Venturi-Initiated Vacuum Assist) | |
| Perumahan klep | logam pinuh | |
| Beurat | 193g / 6.8 oz | |
| Air Flow at 200 bar | 1850 l/min - 66 SCFM | |
| Tekanan Low Maximum | 14 bar / 203 psi | |
| Item Ukuran Paket L x W x H | 9.8 x 7.4 x 4.2 inci | |
| Beurat pakét | 3.2 pon | |
| Nomer modél | 12970040 | |
8. Garansi jeung Rojongan
Scubapro products are manufactured to high standards and are backed by a manufacturer's warranty. To maintain your warranty, it is crucial to adhere to the recommended annual servicing schedule by an authorized Scubapro dealer or technician.
For detailed warranty information, service inquiries, or technical support, please refer to the official Scubapro website or contact your local authorized Scubapro dealer. Always ensure that any servicing or repairs are performed by qualified personnel using genuine Scubapro parts.
You can find more information and locate authorized service centers by visiting the Scubapro Store on Amazon atawa resmi maranéhanana websitus.





