Bueco y leo, y puedo hablar con algo de conocimiento de causa, aunque estoy dispuesto a aceptar las réplicas de alguien más informado que yo. Antes de nada, decir que cada uno tenemos nuestra opinión y argumentamos en uno u otro sentido según nuestras convicciones personales, pero lo que no es demasiado correcto es generalizar y dar por sentado cosas que no son tan claras, evidentes o comunes. Antes que nada, los computadores de buceo
no sirven para calcular los tiempos de descompresión. Si os leeis cualquier manual de estos equipos vereis que no recomiendan realizar buceos de descompresión con ellos, lo único que hacen es mantener al buceador dentro de la curva tiempo-profundidad que no exige descompresión y llevarlo a superficie lo más limpio de Nitrógeno posible.
Por otro lado los algoritmos que utilizan son genéricos, y no se ajustan a las condiciones físicas concretas, ni al tipo de inmersión o esfuerzo durante la misma realizado por el buzo, por lo tanto son restrictivos y van a asegurar la integridad física del usuario. Y además de estas peculiaridades existen métodos, o filosofias de buceo que están en contra del uso de estos equipos. Mas abajo recojo las recomendaciones que realizan los DIR, una de las filosofias de buceo mas punteras del mundo, en cuyo haber cuentan con las exploraciones de espeleobuceo mas profundas y largas de la historia, y cuya máxima es la seguridad y el buceo responsable en entornos confinados. Esta gente no usa computadores, y en sus muñecas simples G-shocks o Timex con cronógrafo, aunque también los hay que utilizan Doxa o IWC (como Holdover os remito al Diver´s Forum de watchuseeK).
Y finalmente cada uno es libre de utilizar lo que quiera bajo el agua pero no conviene generalizar ni dar todo por sentado sin debate , un saludo
:
Computer Diving
Divers have three primary methods by which to calculate dive and/or decompression time, namely, tables, wrist-mounted computers, and personal computer decompression programs. There is a great deal of debate surrounding the use of wrist-mounted decompression computers; divers wear these to calculate dive time limitations and decompression obligations during the dive. All divers should learn the proper use of decompression tables in order to learn the actual process of decompression diving. Divers that choose to use computers should do so after becoming well-versed in diving limits and then using the computer primarily as an educational tool. To see a list of problems with computer diving, consult Doing It Right: The Fundamentals of Better Diving, Chapter six.
A Baker's Dozen: Problems With Computer Diving
1. Dive computers tend to induce significant levels of diver dependence, and undermine the awareness essential to all diving, but particularly essential to divers just beginning decompression diving.
2. Dive computers prohibit proper planning; they discourage divers from “studying” the impact of various mixtures and decompression choices.
3. Dive computers are of little educational benefit because they promote neither questioning nor proper planning discussions.
4. Dive computers often use algorithms that heavily pad decompression time; this sometimes results in odd and ridiculous levels of conservatism.
5. Dive computers are expensive, and prevent divers with limited resources from purchasing truly useful equipment.
6. Dive computers significantly limit the likelihood that divers will track their residual nitrogen groups, leaving them less informed in the event of computer failure.
7. Dive computers do not allow for diving helium in any format but the bulkiest and most questionable. It is very likely that new helium-based decompression computers will be inordinately conservative and suffer from all the limitations of air and Nitrox dive computers.
8. Dive computers often generate longer decompressions than an astute, well-educated, experienced diver generates.
9. Dive computers often confuse matters by providing the diver with too much useless information, sometimes even obscuring depth and time in favor of blinking CNS and/or decompression limitations.
10. Some dive computers become very difficult to use if a decompression stop has been violated. Some computers will lock up completely, while others will just beep or generate erroneous and distracting information.
11. Dive computers do not allow the educated diver to properly modify his/her decompression profile to account for advances in knowledge, e.g., the use of deeper stops in a decompression profile.
12. Dive computers do not offer divers much flexibility to generate profiles with varying conservatism. For example, the right mix would allow 100 minutes at 60 ft rather than 60 minutes at 60 ft, but a diver might prefer to do one or the other or a hybrid of the two. Computers confuse this issue by not providing divers with the proper information.
13. Dive computer users often ignore table proficiency and therefore do not learn to read tables properly. When faced with a situation where they can't dive a computer (e.g., failure or loss) these divers are seriously handicapped.