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1. The following is extracted from the Inspiration user manual http www apdiving com oxygendangerpoints pdf This message was sent by Ambient Pressure Diving Ltd To make sure you continue to receive these e mails please add the from email to your Safe Senders list Unsubscribe CONFIDENTIALITY NOTICE This document is strictly confidential and is intended only for use by the addressee Any disclosure copying distribution or other action taken in reliance of the information contained in this e mail is strictly prohibited Any views expressed by the sender of this message are not necessarily those of the companies If you have received this transmission in error please use the reply function to tell us and then permanently delete what you have received Ambient Pressure Diving Ltd is registered in England under Company Registration Number 4118978 and the Registered Office is Unit 2C Water ma Trout Industrial Estate Helston Cornwall TR13 OLW Copyright C 2008 Ambient Pressure Diving Ltd All rights reserved 2av2 2009 10 29 10 522. http us 1 campaign archive com u fa7b024f6b9aabf24bdd1c393 amp id Email not displaying correctly View it in your browser newsletter gt gt Technical Update 29th October 2009 In this Issue Posted on the APD Website 16th October 2009 Technical Update Issued by Ambient Pressure Diving Ltd UK Tel 01326 563834 Email info apdiving com Products All APD rebreathers with Vision controllers It has been brought to our attention that when operating some hydraulic equipment underwater there is a possibility of inadvertent Vision handset button operation and extra care must be taken to monitor the rebreather display at more frequent intervals Specifically whilst assisting in the operation of a Jack hammer road drill underwater the percussion exhausts will have sufficient force frequency and focus to press the buttons when within 2 feet 60cm and when facing the percussion exhausts The diver operating the driver here at the handles and trigger is mot exposed to the water jets The arrow depicts the location of one of the percussion ports This arca of the tool is square and there is one port on cach ad A diver any here at these levels within i fect is directly exposed to the water jet on any of the 4 sides If the hand set 1s cither at cheat level or on the wrist s bong as it s in line wrih the jets ihe percussion water jet may affect it In tests the bu
3. tton operation is random and this switching can lav 2 2009 10 29 10 52 http us campaign archive com u fa7b024f6b9aabf24bdd1c393 amp id cause a setpoint change or cause it to go in and out of OC mode and or make any number of changes within the underwater menu including gas options HUD brightness LCD contrast backlight diluent gasses and bailout gasses While either oxygen controller can be turned off and on it is not possible to turn both oxygen controllers off simultaneously while deeper than 1 2m 4ft providing there are two good batteries fitted We have been unable to reproduce the inadvertent button presses with normal diving applications Tests include tap and fast water movement including moving handsets through water as fast as possible diving in Rivers and tidal current scootering jump tests from various heights and various angles and we can state that inadvertent button pressing is highly unlikely The fact is we didn t get any inadvertent button presses in any of these tests Furthermore this is not a problem for the diver holding the handles of the jack hammer the problem exists for the diver assisting if he works lower down near the percussion exhausts Ambient Pressure Diving would like to take this opportunity to re iterate to all rebreather divers the importance of looking at the PO2 displays regularly and draw your attention to the key waypoints during a dive where it is essential to monitor the PO2
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