Summary of Contents for ISC APECS
- Page 1 APECS™ OPERATIONAL INSTRUCTIONS (v. 2.7) 10 July 2008 ©2008 InnerSpace Systems Corp. All rights reserved. Distribution limited to owners and users of ISC Closed Circuit Rebreathers. See paragraph “ DOCUMENT for specifics. REPRODUCTION AND LICENSING”...
- Page 2 APECS™ electronics system. Viewers of the electronic version of this documentation may not reproduce electronically, on any media, nor in hard copy, in part or in whole without express written permission of ISC. Owners of rebreather equipment featuring these electronic systems are hereby licensed to no more than one electronic copy, one backup media copy, and one hard copy of this document intended for their operational service of the referenced equipment.
- Page 3 • Voting logic indicator. Indicates what specific sensor is out of tolerance at that moment. (A sensor that may become disconnected or completely fail, the APECS™ will still average and maintain the current set point.) • Current set point window.
- Page 4 HUD controller, along with, of course, a name change displaying COPIS 2.70. These various software items are appropriately loaded to the electronics module at time of manufacture for the intended use of the APECS 2.7 Megalodon head assembly. ______________________________________________________________________________________...
- Page 5 APECS™ will self correct if the problem is temporary, if the sensor has failed or connection is broken the diver must abort the dive and exit the water as soon as possible observing both displays and being prepared to conduct an immediate action procedure (IAP).
- Page 6 The Diver at any time may leave the selected option by making a selected operational change to the APECS™ or the system will time out in 5 seconds and go back to the main diving informational screen. WARNING! Always insure that you have a breathable P02 in the loop, and set point that will also support your planned decompression.
- Page 7 APECS ™ OPERATIONAL INSTRUCTIONS (v. 2.7) page Megalodon. The diver may access SYSTEM MONITOR during the dive to monitor the sensor mv (sensor millivolts) and the BATTERY: NORM and LOAD voltages (LOAD voltage on primary handset only). The NORM battery indicator shows the drop in voltage when there is no load on the battery.
- Page 8 APECS ™ OPERATIONAL INSTRUCTIONS (v. 2.7) elevations and or lower temperatures. It is a prudent habit to record the sensor mv at various set points during the dive and to do comparison check on later dives. TEMPERATURE: The temperature sensors monitor the ambient water or air temperature and the breathing loop temperature on the primary handset and the loop temperature only on the secondary handset.
- Page 9 PO2 at all times, and to monitor the rate of change of PO2 especially during times of high workload, descents and ascents! COMPLANCY KILLS! The APECS™ Primary and Secondary display will time out of all menus automatically after five seconds of in-activity and also fall asleep in surface or...
- Page 10 The secondary hand set displays the average PO2, individual sensor outputs, and the SYSTEM MONITOR (heart beat) along with the ISC logo. secondary has the following menu options; MAIN, SYSTEM MONITOR,...
- Page 11 INSTRUCTIONS (v. 2.7) HUD Operation The HUD is only available on the secondary hand set system of a dual APECS system or on the Primay handset on a Shearwater configuration; it displays the 3 individual sensors by color and number of blinks. The diver may at any time turn off the HUD especially after the dive to save battery power and may turn it back on at any time.
- Page 12 14,700 feet (4,481m) at PO2 of 0.12 ata. The APECS™ also has a sensor millivolt output indicator displaying on both handsets during high point calibration procedures to aid the diver in a proper loop flush.
- Page 13 HiPO2 point. Many users have accidentally hit the confirm button for the air point calibration too many times and resulted in having to restart the entire calibration procedure needlessly. ISC recommends the user become familiar with the millivolt readings of the three oxygen sensors...
- Page 14 Altitude zone selections: The altitude submenu section of the sensor calibration has been enhanced to provide a High PO2 limit. ISC has implemented an ambient air PO2 for the low point calibration along with the Maximum O2 PO2 for the high point.
- Page 15 APECS ™ OPERATIONAL INSTRUCTIONS (v. 2.7) The following table illustrates the permissible altitude zones. HiPO2 Altitude Zone in LoPO2 at 100% FEET (Meters) in AIR Oxygen > 0 (0) 0.21 0.99 > 1,200 (380) 0.20 0.96 > 2,700 (840) 0.19 0.90...
- Page 16 APECS ™ OPERATIONAL INSTRUCTIONS (v. 2.7) Loop Flush High Point Calibration 1. Perform all Pre-dive check procedures up to the step “Complete calibration if necessary”. To complete calibration, all performance checks prior to this need to be completed. Insure that negative pressure check step was good and apply another vacuum to the loop sucking all the ambient air out of the loop.
- Page 17 APECS ™ OPERATIONAL INSTRUCTIONS (v. 2.7) Head Only Calibration Kit The optional Head Only Calibration Kit offers the distinct advantages of a more accurate gas environment for the sensors, is quicker, and uses less oxygen than the loop flush method.
- Page 18 The APECS primary board provides information to the APECS handset and controls both the HUD and the solenoid on APECS heads, and the HUD on COPIS 2 heads. The Teledyne R22D cells are connected to the APECS 2.5 board and the Isolation board.
- Page 19 APECS ™ OPERATIONAL INSTRUCTIONS (v. 2.7) APECS 2.5 A Hardware Configuration Note: On COPIS2 configurations the solenoid will not be present. ______________________________________________________________________________________ 18 of 19 Revision NEW APECS™ 2.7 Date: 10 July 2008...
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Page 20: Revision Index
APECS ™ OPERATIONAL INSTRUCTIONS (v. 2.7) REVISION INDEX Date Revision CHANGES 10 JULY 2008 ______________________________________________________________________________________ 19 of 19 Revision NEW APECS™ 2.7 Date: 10 July 2008...
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