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 On this page...
- PADI TecRec/DSAT Tec Basics (twinset speciality)
- PADI TecRec/DSAT Tec 40
- PADI TecRec/DSAT Tec 45
- PADI TecRec/DSAT Tec 50
Popular combinationas of the above elements are;
Tec Basics + Tec 40
Tec 40 + Tec 45
PADI TecRec/DSAT Tec Basics (twinset speciality)
There is no doubt that twinset diving is getting more and more popular, with different people using this type of equipment for different reasons.
A twinset can increase your available gas supply and/or increase your redundancy in comparison with a single cylinder. If your interests lie in deep diving, wreck diving, cave diving, are just curious about why some divers have “so much kit” or your skills have gone rusty, this 3 day course is a must.
In water sessions include at least 4 dives, which are a mix of confined water and open water dives.
Skills covered include equipment configuration and rigging, buoyancy control and trim, air sharing, valve/manifold failures, surface marker buoy deployment, dive planning, as well as introducing divers to carrying a stage bottle and more.
Theory sessions will cover the basic reasons behind twinset and advanced diving, dive planning, reasons for tech diving as well as looking at other tools available to us such as desktop deco software.
This course is a valuable base for any tech level training or ideal if you are just wanting to use a twinset competently within recreation limits.
Prerequisites are PADI Advanced Open Water (or equivalent) and PADI Nitrox (or equivalent) with over 25 dives.
If you do not have Nitrox certification yet, please contact us to schedule a course prior to beginning the Tec Basics Speciality.
 Tec 40
If you're interested in technical diving, Tec 40 is where it all begins.
The Tec 40 course can be used as an extension to traditional recreational limits or as a full blown entry into the world of tech diving; it serves as the first rung on the ladder meeting the prerequisites for the PADI Tec 45 Diver course or PADI Tec 50 course.
It is the first subdivision of the full PADI Tec Deep Diver course and consists of the first four dives. Because you can do one of these dives in confined water (such as a swimming pool), many divers start the Tec 40 courses in the winter months, ready to continue in open water when spring arrives.
You'll learn to
Use decompression software and dive computers to plan and make decompression dives with no more than 10 minutes of total decompression and not deeper than 40 metres/130 feet.
Use a single cylinder of decompression gas with up to 50 percent oxygen (EANx50) to add conservatism to the required decompression.
Since it's part of the course, your PADI Tec 40 course training credits toward the PADI Tec 45 and Tec 50 courses.
The Scuba Gear You'll Use
You can use recreational scuba equipment, with some minor additions to enhance your abilities but, if you plan on continuing down the tech route then a twin cylinder configuration is best used from the beginning.
Prerequisites are
- Be a PADI Advanced Open Water Diver (or hold a qualifying certification from another organization)
- Be a PADI Nitrox Diver(or hold a qualifying certification from another organization)
- Be a PADI Deep Diver (or hold a qualifying certification from another organization)
- Have a minimum of 30 logged dives, of which at least 10 dives were made with enriched air nitrox deeper than 18 metres / 60 feet.
- Have a medical form signed by your physician
Tec 45
The Tec 45 course picks up where Tec 40 leaves off and takes your training as a tec diver further and deeper. It is the second subcourse in the full PADI Tec Diver course
What you'll learn
The skills and equipment and planning need to dive to a maximum of 45 metres/145 feet
The knowledge to plan and execute single and repetitive decompression dives using a single stage cylinder of EANx or oxygen to accelerate or add conservatism to the decompression stops [no course imposed limit].
Prepare for and respond to foreseeable technical diving emergencies
Master the essential skills and procedures you’ll need as you move into deeper technical diving
Prerequisites
A PADI Advanced Open Water Diver (or hold a qualifying certification from another organization)
A PADI Rescue Diver (or hold a qualifying certification from another organization)
A PADI Nitrox Diver(or hold a qualifying certification from another organization)
A PADI Deep Diver(or hold aqualifying certification from another organization)
A PADI Tec 40 Diver (or hold a qualifying certification from another organization)
Have a minimum of 50 logged dives, of which at least:
- 12 dives were made with enriched air nitrox deeper than 18 metres/60 feet
- 6 (with or without EANx) dives were deeper than 30 metres/100 feet
At least 18 years old
Have a medical statement signed by a physician
Tec 50
The Tec 50 course represents the limit of air/nitrox diving; some people prefer to move to trimix diving after the Tec 45 level
What You'll Learn during the Tec 50 course;
Make actual decompression dives as deep as 50 metres/165 feet using 2 decompression cylinders.
Use enriched air nitrox and/or oxygen for decompression
Use desk top decompression software to create custom dive tables and plan your dives
Prerequisites
Be a PADI Advanced Open Water Diver (or hold a qualifying certification from another organization)
Be a PADI Rescue Diver (or hold a qualifying certification from another organization)
Be a PADI Nitrox Diver(or hold a qualifying certification from another organization)
Be a PADI Tec 45 Diver (or hold a qualifying certification from another organization)
Have a minimum of 100 logged dives, of which
- 20 dives must be enriched air dives
- 25 dives must be deeper than 18 metres/60 feet
- at least 20 dives must be deeper than 30 metres/100 feet
Be at least 18 years old
Have a medical statement signed by your physician
Equipment
Tec 40 can be taken in normal recreational equipment [with a few additions], the basic tech rig is outlined below.
Basic Equipment (in addition to standard drysuit, mask fins etc)
- Twin cylinders, with isolation manifold
- Wing and harness
- 2 x regulator, one with 2m/7ft long hose, one SPG
- 2 x depth/timing device computer or bottom timers
- Delayed Surface Marker Buoy with reel
- Dive Slate / Wet Notes
- 2 x cutting devices
Tec 45 and 50 will also need:
- At least one decompression/stage cylinder and regulator
- Primary Light, preferably with at least 1.5 hours burn time. An umbilical lamp seems to be the most popular option.
Diving in Depth has most equipment required for the above courses available to hire, though divers should consider the benefits of owning their own.
Please contact us with any equipment queries you have, the best “Teck Kit Package” is rarely the best in the water!
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