Hard off switch on the Hammer Head

diverklondike · 6th November 2006, 04:03

Quote: (Originally Posted by trob09)

Just a short follow-up since you quoted me, the Hammerhead solenoid will fire even in OC mode if the loop PO2 falls below .19. This is one of the saftey protocols built-in I feel this method is an acceptable solution to "turning off" the solenoid once out of the water.

I have been using this approach for the last year and it works well...

Dive Dafe...

Mark

PeteS · 6th November 2006, 09:26

Quote: (Originally Posted by trob09)

Just a short follow-up since you quoted me, the Hammerhead solenoid will fire even in OC mode if the loop PO2 falls below .19. This is one of the saftey protocols built-in I feel this method is an acceptable solution to "turning off" the solenoid once out of the water.

Fair comment, thanks for filling in the gaps in my knowledge.

AD_ward9 · 16th November 2006, 09:58

Quote: (Originally Posted by trob09)

Just a short follow-up since you quoted me, the Hammerhead solenoid will fire even in OC mode if the loop PO2 falls below .19. This is one of the saftey protocols built-in I feel this method is an acceptable solution to "turning off" the solenoid once out of the water.

This is very good practice. Look forward to the day when every rebreather does this. It would have saved some lives.

Alex

paulraymaekers · 16th November 2006, 13:45

Quote: (Originally Posted by AD_ward9)

This is very good practice. Look forward to the day when every rebreather does this. It would have saved some lives.

Alex

yeh, and even more easy: to go from OC to CCR, you don't have to go to OC menu, changing, confirm etc (8 pushes)
simply select a setpoint and whoops, you're in CCR mode
(2/3 pushes)

regards
paul

**JPJones** · 16th November 2006, 13:57

Quote: (Originally Posted by decoweenie)

Paul,

Check with Kevin concerning about tighten the battery cap hard.

On the older acrylic handset, the internal thread part could rotated and shear off the 2 wires to the battery. I know Kevin modified the newer battery compartment to prevent this from happening, but it is still probably a good idea to know how hard you could apply force to it.

Just a heads-up...

The new sets are aluminum and the case is gound so you can't pull out the slug like you could in the plastic hand sets. The tighter the better.

**JPJones** · 16th November 2006, 14:04

Quote: (Originally Posted by AD_ward9)

This is very good practice. Look forward to the day when every rebreather does this. It would have saved some lives.

Alex

Even if you set it to manual firing it will fire if the PO2 drops below .19

Genesis · 16th November 2006, 14:14

The K1 won't allow a setpoint below 0.2, so it does the same thing... assuming its on (you CAN shut it off with a hard power switch)

6th November 2006, 04:03	#71 (permalink)
diverklondike RBW Member Current Rebreather/s: Inspiration Classic Other CCR Other Rebreather/s: Inspiration Classic Other CCR Join Date: Oct 2005 Location: Delaware, USA Posts: 1,713	Re: Hard off switch on the Hammer Head Quote: (Originally Posted by trob09) Just a short follow-up since you quoted me, the Hammerhead solenoid will fire even in OC mode if the loop PO2 falls below .19. This is one of the saftey protocols built-in I feel this method is an acceptable solution to "turning off" the solenoid once out of the water. I have been using this approach for the last year and it works well... Dive Dafe... Mark
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6th November 2006, 09:26	#72 (permalink)
PeteS Consent Issued! Current Rebreather/s: Inspiration Classic Inspiration Vision Other Rebreather/s: Join Date: Jun 2005 Location: New Zealand Posts: 543	Re: Hard off switch on the Hammer Head Quote: (Originally Posted by trob09) Just a short follow-up since you quoted me, the Hammerhead solenoid will fire even in OC mode if the loop PO2 falls below .19. This is one of the saftey protocols built-in I feel this method is an acceptable solution to "turning off" the solenoid once out of the water. Fair comment, thanks for filling in the gaps in my knowledge. __________________ Pete S. http://www.steggle.co.nz Every silver lining has a cloud
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16th November 2006, 09:58	#73 (permalink)
AD_ward9 RBW Member Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Jun 2005 Location: Scotland Posts: 2,011	Re: Hard off switch on the Hammer Head Quote: (Originally Posted by trob09) Just a short follow-up since you quoted me, the Hammerhead solenoid will fire even in OC mode if the loop PO2 falls below .19. This is one of the saftey protocols built-in I feel this method is an acceptable solution to "turning off" the solenoid once out of the water. This is very good practice. Look forward to the day when every rebreather does this. It would have saved some lives. Alex
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16th November 2006, 13:45	#74 (permalink)
paulraymaekers rEvo's daddy Current Rebreather/s: rEvo Other CCR Home Build Other Rebreather/s: rEvo Other CCR Home Build Join Date: May 2005 Location: belgium Posts: 1,637	Re: Hard off switch on the Hammer Head Quote: (Originally Posted by AD_ward9) This is very good practice. Look forward to the day when every rebreather does this. It would have saved some lives. Alex yeh, and even more easy: to go from OC to CCR, you don't have to go to OC menu, changing, confirm etc (8 pushes) simply select a setpoint and whoops, you're in CCR mode (2/3 pushes) regards paul __________________ www.rEvo-rebreathers.com .... the earth is flat, Elvis is alive, and radial scrubbers give longer dwell time than axials...
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16th November 2006, 13:57	#75 (permalink)
JPJones O2ptima Test Dummy Current Rebreather/s: Inspiration Classic Megalodon Sport Kiss Classic Kiss Optima Titan Other Rebreather/s: Join Date: Sep 2005 Location: Florida Posts: 367	Re: Hard off switch on the Hammer Head Quote: (Originally Posted by decoweenie) Paul, Check with Kevin concerning about tighten the battery cap hard. On the older acrylic handset, the internal thread part could rotated and shear off the 2 wires to the battery. I know Kevin modified the newer battery compartment to prevent this from happening, but it is still probably a good idea to know how hard you could apply force to it. Just a heads-up... The new sets are aluminum and the case is gound so you can't pull out the slug like you could in the plastic hand sets. The tighter the better. __________________ NSS/CDS Training Chairman www.jpjscuba.com
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16th November 2006, 14:04	#76 (permalink)
JPJones O2ptima Test Dummy Current Rebreather/s: Inspiration Classic Megalodon Sport Kiss Classic Kiss Optima Titan Other Rebreather/s: Join Date: Sep 2005 Location: Florida Posts: 367	Re: Hard off switch on the Hammer Head Quote: (Originally Posted by AD_ward9) This is very good practice. Look forward to the day when every rebreather does this. It would have saved some lives. Alex Even if you set it to manual firing it will fire if the PO2 drops below .19 __________________ NSS/CDS Training Chairman www.jpjscuba.com
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16th November 2006, 14:14	#77 (permalink)
Genesis Bubbless Box of Death Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Oct 2005 Location: Sunny Florida Posts: 1,453	Re: Hard off switch on the Hammer Head The K1 won't allow a setpoint below 0.2, so it does the same thing... assuming its on (you CAN shut it off with a hard power switch) __________________ "A venturesome minority will always be eager to get off on their own, and no obstacles should be placed in their path; let them take risks for Godsake, let them get lost, sunburnt, stranded, drowned, eaten by bears, buried alive under avalanches - that is the right and privilege of any free American." http://www.denninger.net http://www.diversunion.org/liability.htm - Fix the Diving Cert racket
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