Explorer CO2 Sensor User Manual
Contents
1. Jois EXPLORER CO SENSOR USER MANUAL ois EXPLORER CO SENSOR SPORT REBREATHER CONTENTS NOTICE p HMM 3 DANGERS WARNINGS CAUTIONS amp NOTES ertet teria tatnen nne tate atn d nba dn heu sa GESANG 3 DANGERS tee iter idee pris usu cu PU T LI D IM CIIM IUE ET IUE 4 WARNING S e a napa ada Mani Pin an inn atin Da a en kara ah a eaaa ad daga due aa ERES 4 CO SENSOR OPERATION 5 ASSEMBLY 555550955 sagang aga na aaa tanna ga o lala 6 DISASSEMBL EIE EE 7 DRYINGSILICA BEADS FOR REISE rta ii hen net enit dn gela na aan ae raaa ad aa Ted da ECO 7 CO SENSOR ASSEMBLY DIAGRAM O M 8 RECORD Sistas a 9 Miei zT EET 9 Hollis 2014 Doc 12 4127 r01 2 28 14 Jouuis EXPLORER CO SENSOR RT REBREATHE NOTICES LIMITED WARRANTY For details refer to the Product Warranty section on the Hollis web site www HollisGear com COPYRIGHT NOTICE This operating manual is copyrighted all rights are reserved It may not in whole or in part be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form without prior consent in writing from Hollis Explorer CO Sensor User Manual Doc No 12 4127 Hollis 2014 San Leandro CA USA 94577 510 729 5110 TRADEMARK TRADE NAME AND SERVICE MARK NOTICE HOLLIS the HOLLIS logo type and Hollis Explorer are registered and unr2. cap Doing so could lead to obstructed gas flow rendering the CO sensor ineffective in detecting dan gerous levels of CO gas 5 Press the cap cover 5 onto the cap 10 6 Remove the sensor module according to instructions in the Ex plorer User Manual doc 12 4102 Part 2 Section 3 Complete Disassembly amp Reassembly 7 Having removed the sensor module inspect the mini jack con nector and carefully wipe clean with a soft cloth Fig 4 8 Press the CO sensor onto the mini jack BR DANGER ONLY the Hollis CO sensor may be used with the Explorer No other CO sensors are tested or approved 9 Fit the now filled cap 10 assembly onto the sensor module Fig 4 10 Reinstall the sensor module following the directions in the Ex plorer User Manual doc 12 4102 Part 2 Section 3 Complete Disassembly amp Reassembly BR DANGER After CO SENSOR 12 replacement into the sensor module you must ensure the unit is calibrated by completing a full pre dive sequence on the Explorer unit Hollis 2014 Doc 12 4127 r01 2 28 14 ldouuis EXPLORER CO SENSOR SPORT REBREATHER DISASSEMBLY 1 Remove the sensor module according to instructions in the Ex plorer User Manual doc 12 4102 Part 2 Section 3 Complete Disassembly amp Reassembly 2 Pull the cap 10 assembly off of the sensor module Fig 5 3 Pull the CO sensor 12 off of the mini jack 4 Having removed the CO sensor 12
3. inspect the mini jack connector and carefully wipe clean with a soft cloth 5 Remove the cap cover 5 from the cap 10 Fig 6 6 Empty the silica beads 7 Inspect for broken or damaged beads discard if found Otherwise you may follow the instructions in the section Drying Silica Beads For Reuse to dry the beads for reuse 7 Remove the O rings 9 amp 11 from the cap 10 Inspect for any signs of deterioration Discard if found Fig 6 8 Visually inspect the white filters 6 amp 8 to ensure they are intact and their pores are not clogged Remove and discard if clogged or damaged Otherwise they may remain installed for reuse DRYING SILICA BEADS FOR REUSE Silica beads 7 can simply be replaced with new or dried for reuse To dry silica beads 7 Hollis recommends heating in an oven at 225 F for about an hour times vary depending on your oven When the granules return to their original amber color they are ready for use in the Explorer Avoid rapid hydration due to liquid water exposure or rapid dehydration of the silica beads 7 Any silica beads 7 that have become broken due to liquid exposure rapid drying harsh handling etc must be discarded and replaced WARNING Rapid hydration i e breathing loop flooding or dehydration of the silica gel beads can cause them to frac ture NEVER use broken silica beads in your Explorer CO2 sensor cap Doing so could lead to obstructed gas flow rendering
4. egistered trade marks trade names and service marks of HOLLIS All rights are reserved DANGERS WARNINGS CAUTIONS AND NOTES Pay attention to the following symbols when they appear throughout this docu ment They denote important information and tips lll DANGERS are indicators of important information that if ignored would lead to severe injury or death IH WARNINGS are indicators of important information that if ignored could lead to severe injury or death HN CAUTIONS are indicators of information that if ignored may lead to minor to moderate injury ll NOTES indicate tips and advice that can inform of features aid assembly or prevent damage to the product Hollis 2014 Doc 12 4127 r01 2 28 14 Jouuis EXPLORER CO SENSOR SPORT REBREATHE E DANGERS El The CO Sensing Module should NOT be used to determine absorbent duration It is critical that you have read section 3 14 and 6 1 of the Explorer User Manual doc 12 4102 read this Explorer CO Sensor User Manual understood and been trained in its proper use The Explorer rebreather scrubber is a maximum two hour duration scrubber when used under sport div ing conditions Under no circumstances should it be used for more than two hours See Part 4 Section 2 CO2 Absorbent Scrubber Pack of the Explorer User Manual doc 12 4102 for further information on duration times At this time the CO Sensing Module is ONLY tested and known to be safe for u
5. rald green color With the Explorer the silica beads should be changed with dried or new silica beads every 4 6 hours of use or whenever the beads have changed to emerald green whichever occurs first B NOTE 4 6hoursisa recommendation for most conditions Dif ferentenvironments and use may require more frequent silica bead inspection to avoid false CO readings during the dive The silica beads 7 will absorb moisture from the surrounding environment To keep your silica beads 7 dry and ready for use they should be stored in an airtight container For conve Hollis 2014 EXPLORER CO SENSOR SPORT REBREATHE Doc 12 4127 r01 2 28 14 ldouuis EXPLORER CO SENSOR SPORT REBREATHER nience the whole CO sensor cap assembly can may be re moved from the sensor module and stored in an airtight contain er i e ziplock bag between dives ASSEMBLY 1 If not already installed press the smaller diameter white filter 8 into the cap 10 as shown Fig 2 2 Then press the larger diameter white filter 6 into the cap cover 5 3 If not already installed install lightly lubricated O rings 9 amp 11 onto the cap 10 see the diagram at the end of this manual for individual O ring 9 amp 11 location 4 Fill the cap 10 with 6 grams of fresh or dried silica beads 7 to an estimated 1 16 inch below the rim as shown Fig 3 M WARNING NEVER use broken silica beads in your Explorer CO2 sensor
6. se in the Hollis Explorer rebreather Improper use or abuse outside of the intended purpose of this device can lead to serious harm or death E WARNINGS E As with all underwater life support equipment improper use or misuse of this product could cause seri ous injury or death There are many risks in rebreather diving Education preparation and diving well within your skill level are your best means to safely pursue this sport DO NOT attempt to disassemble repair or adjust the CO Sensor P N 25429 Doing so could cause mal function resulting in serious injury or death It will also void the limited warranty The CO sensor MUST be calibrated in accordance with the instructions in section 3 14 of the Explorer User Manual doc 12 4102 before use This is an electronic device and like all electronic devices this device can fail Always carry adequate bailout gas for the dive If you feel symptoms of CO poisoning bail out regardless of what the electronics read Hollis 2014 Doc 12 4127 r01 2 28 14 ois CO SENSOR OPERATION The Explorer CO sensor is intended for use in detecting channel ing high work rates bad absorbent material and other possible failures of the Explorer scrubber system When used properly this accessory can add another safeguard to the use of your Explorer This manual is intended to be used in conjunction with the Explor er User Manual doc 12 4102 Proper installation calibra
7. the CO sensor ineffective in detecting danger ous levels of CO gas Hollis 2014 Doc 12 4127 r01 2 28 14 CO SENSOR ASSEMBLY DIAGRAM ae 12 DESCRIPTION J NOTES BD supersedes P N 25427 FITER IO 25644 25429 CO SENSOR O Hollis 2014 Ee EE een EE an SSES Doc 12 4127 r01 2 28 14 ois EXPLORER CO SENSOR PORT REBREATHER RECORDS CO SENSOR SERIAL NUMBER DATE OF PURCHASE HOLLIS DEALER DEALER PHONE NUMBER NOTES ois San Leandro CA USA 94577 510 729 5110 www hollisgear com E mail info hollisgear com Hollis 2014 9 Doc 12 4127 r01 2 28 14
8. tion and use of your new CO Sensor is critical This manual covers proper assembly and maintenance of the CO sensor assembly For proper use of the CO sensor with the Explorer see the Ex plorer User Manual D WARNING You must read and understand the Explorer User Manual doc 12 4102 this manual and have re ceived an appropriate Hollis Certified user training course before use of this CO sensor The CO sensor used in the Explorer is an NDIR Non Dispersive Infrared Sensor It relies on an optical path to measure the concentration of CO within the breathing loop Water vapor can condense on the optical elements of the sensor blocking the infra red signal the sensor uses resulting in false CO readings Hollis uses indicating silica gel 7 beads to prevent moisture inside the Explorer breathing loop from interfering with the CO sensor readings in this way This system though effective relies on the user inspecting and replacing the silica beads on a regular basis The silica gel material is spherical in shape 2 to 4 mm in diameter Hollis supplies 30 grams of silica beads 7 in an air tight con tainer with this kit This is enough to fill the CO sensor cap 10 five times Though the beads may be dried for reuse see the section Drying Silica Beads For Reuse The silica beads 7 are an amber color when ready for use in your Explorer Fig 1 When the silica beads 7 are satu rated with moisture they turn an eme
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