HammerHead Revisions and Issues

Stephane · 3rd June 2008, 12:02

Quote: (Originally Posted by osiris)

Solenoid diagnosis?

Any help gratefully received - my HH Inspo appears to have a faulty solenoid. I.e I don't hear the solenoid firing . I have taken the head off, connected primary and turned on - I assume the primary will trigger the solenoid? If so, nothing happens. Can anyone advise what diagnosis (apart from "send the head back") I can do locally to ascertain if the solenoid is faulty or of there is an obscure setting not noted in the manual?

I've tried both Standard and Juergensen settings. I last dived the unit one month ago with no problems then.

Cheers

Hi,

You can put a voltmeter on the contacts of the solenoid, you should read 6V and then around 3V.
To trigger the solenoid, just unplug two cells. Even in OC mode it will fire the solenoid to maintain a 0.19ATA PpO2.

***jradomski*** · 3rd June 2008, 15:43

Quote: (Originally Posted by osiris)

Solenoid diagnosis?

Any help gratefully received - my HH Inspo appears to have a faulty solenoid. I.e I don't hear the solenoid firing . I have taken the head off, connected primary and turned on - I assume the primary will trigger the solenoid? If so, nothing happens. Can anyone advise what diagnosis (apart from "send the head back") I can do locally to ascertain if the solenoid is faulty or of there is an obscure setting not noted in the manual?

I've tried both Standard and Juergensen settings. I last dived the unit one month ago with no problems then.

Cheers

as long as the solenoid is in standard or juergensen mode and a setpoint is set it will fire teh solenoid.. manual mode disables solenoid firing unless the po2 drops below 0.19..

If its in oc mode it will only fire if the po2 is below 0.19..

If you got water in the solenoid it is possible that it rusted in place... All Rebreather solenoids need to use ferrous metals and even a slight bit of water renders them useless..

If you have the solenoid contacts exposed and no batteries in the handset you can put a 9v battery across the solenoid terminals to see if it fires..

jkaterenchuk · 3rd June 2008, 19:30

I had a similar problem in the past. Checked for the voltage changes across the terminals. Voltage changes were apparent as the contoller sent a signal to fire solenoid. I took it apart and the pictures speak for themselves.

John

zzzzzzzz · 3rd June 2008, 21:12

Quote: (Originally Posted by jkaterenchuk)

I had a similar problem in the past. Checked for the voltage changes across the terminals. Voltage changes were apparent as the contoller sent a signal to fire solenoid. I took it apart and the pictures speak for themselves.

John

Hi John,

Wow, cool looking... Not!

FYI:

There is a ss version of the same solenoid, this is what is in my homebuilt.

Some grades of ss are still magnetic but this hasn't been checked for the internal parts.

The nickel plated steel bit for the magnetic circuit was replaced with a pure nickel part.

z

jkaterenchuk · 3rd June 2008, 22:50

Quote: (Originally Posted by zzzzzzzz)

Hi John,

Wow, cool looking... Not!

FYI:

There is a ss version of the same solenoid, this is what is in my homebuilt.

Some grades of ss are still magnetic but this hasn't been checked for the internal parts.

The nickel plated steel bit for the magnetic circuit was replaced with a pure nickel part.

z

Thanks for the info. Just for the record this was a used piece of equipment I bought from the UK arrived in this condition. It cleaned up like new.

John

osiris · 4th June 2008, 02:02

Quote: (Originally Posted by jkaterenchuk)

I had a similar problem in the past. Checked for the voltage changes across the terminals. Voltage changes were apparent as the contoller sent a signal to fire solenoid. I took it apart and the pictures speak for themselves.

John

Looks like I have a rusted solenoid as there was condensation in the O2 line when I took it off and being ferrous it's most likely that the solenoid would have rusted shut. Oh well, drag out the wallet agin.....

Appreciate everyone's help with this.

cheers

***jradomski*** · 4th June 2008, 08:24

Quote: (Originally Posted by osiris)

Looks like I have a rusted solenoid as there was condensation in the O2 line when I took it off and being ferrous it's most likely that the solenoid would have rusted shut. Oh well, drag out the wallet agin.....

Appreciate everyone's help with this.

cheers

I would order a new solenoid from kevin, but don;t throw the old one out.. I would clean it up and keep it as an emergency spare..

Once you get the new solenoid, I would remove the new coil and swap it with the one thats already soldered in.. The coils rarely go bad, and its easier just to swap the mechanical bits..

kwinter · 23rd July 2008, 02:12

Since no one has posted on this wish list in a while, I would like to propose a log function in the handset(s). I am amazed that a $50 hockey puck computer will record a log of a bunch of dives, but the HH doesn't even give a review of the last dive. An upload capability/interface would be nice, but that seems to involve hardware as well as software. I think the log should be fairly easy.

I've discussed the dive log issue with Kevin before and he seemed agreeable to it. Any word on whether this will become reality? I'm holding off on upgrading to the delrin handsets to see what's coming down the pipeline.

Ken

osiris · 23rd July 2008, 12:12

Quote: (Originally Posted by kwinter)

Since no one has posted on this wish list in a while, I would like to propose a log function in the handset(s). I am amazed that a $50 hockey puck computer will record a log of a bunch of dives, but the HH doesn't even give a review of the last dive. An upload capability/interface would be nice, but that seems to involve hardware as well as software. I think the log should be fairly easy.

I've discussed the dive log issue with Kevin before and he seemed agreeable to it. Any word on whether this will become reality? I'm holding off on upgrading to the delrin handsets to see what's coming down the pipeline.

Ken

Log would be good - changing from AA batteries to something with more life would be better...

diverreb · 23rd July 2008, 12:19

Ken,

I agree 100% on this issue. I have no idea how difficult it would be to program in a Logging function, but it would be a great addition. I'd love to see a 10 dive log available on the units.

Trish.... Try to have this, along with an adjustable last stop depth, and a fix for the remaining 1 minute of Deco that takes 5 minutes to clear, ready by DEMA OK?

The larger, brighter screen, cutting the size (Thickness) in half, and the reliable wireless technology can wait until the following DEMA.

Richie

3rd June 2008, 12:02	#171 (permalink)
Stephane Stéphane Acounis Current Rebreather/s: rEvo Other Rebreather/s: rEvo Join Date: Nov 2005 Location: Nantes - France Posts: 769	Re: HammerHead Revisions and Issues Quote: (Originally Posted by osiris) Solenoid diagnosis? Any help gratefully received - my HH Inspo appears to have a faulty solenoid. I.e I don't hear the solenoid firing . I have taken the head off, connected primary and turned on - I assume the primary will trigger the solenoid? If so, nothing happens. Can anyone advise what diagnosis (apart from "send the head back") I can do locally to ascertain if the solenoid is faulty or of there is an obscure setting not noted in the manual? I've tried both Standard and Juergensen settings. I last dived the unit one month ago with no problems then. Cheers Hi, You can put a voltmeter on the contacts of the solenoid, you should read 6V and then around 3V. To trigger the solenoid, just unplug two cells. Even in OC mode it will fire the solenoid to maintain a 0.19ATA PpO2. __________________ Stéphane
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3rd June 2008, 15:43	#172 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Home Build Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Home Build Join Date: Mar 2005 Location: "Da" Bronx Posts: 3,001	Re: HammerHead Revisions and Issues Quote: (Originally Posted by osiris) Solenoid diagnosis? Any help gratefully received - my HH Inspo appears to have a faulty solenoid. I.e I don't hear the solenoid firing . I have taken the head off, connected primary and turned on - I assume the primary will trigger the solenoid? If so, nothing happens. Can anyone advise what diagnosis (apart from "send the head back") I can do locally to ascertain if the solenoid is faulty or of there is an obscure setting not noted in the manual? I've tried both Standard and Juergensen settings. I last dived the unit one month ago with no problems then. Cheers as long as the solenoid is in standard or juergensen mode and a setpoint is set it will fire teh solenoid.. manual mode disables solenoid firing unless the po2 drops below 0.19.. If its in oc mode it will only fire if the po2 is below 0.19.. If you got water in the solenoid it is possible that it rusted in place... All Rebreather solenoids need to use ferrous metals and even a slight bit of water renders them useless.. If you have the solenoid contacts exposed and no batteries in the handset you can put a 9v battery across the solenoid terminals to see if it fires.. __________________ Joe Radomski CCR Trimix Instructor Trainer ANDI Instructor Trainer Director #10 All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.
(Online)

3rd June 2008, 21:12	#174 (permalink)
zzzzzzzz Custom Title Allowed! Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Dec 2006 Location: Earth Posts: 100	Re: HammerHead Revisions and Issues Quote: (Originally Posted by jkaterenchuk) I had a similar problem in the past. Checked for the voltage changes across the terminals. Voltage changes were apparent as the contoller sent a signal to fire solenoid. I took it apart and the pictures speak for themselves. John Hi John, Wow, cool looking... Not! FYI: There is a ss version of the same solenoid, this is what is in my homebuilt. Some grades of ss are still magnetic but this hasn't been checked for the internal parts. The nickel plated steel bit for the magnetic circuit was replaced with a pure nickel part. z __________________ z
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3rd June 2008, 22:50	#175 (permalink)
jkaterenchuk . Current Rebreather/s: Inspiration Classic Megalodon Classic Kiss Other Rebreather/s: Join Date: May 2006 Location: Lititz, PA Posts: 827	Re: HammerHead Revisions and Issues Quote: (Originally Posted by zzzzzzzz) Hi John, Wow, cool looking... Not! FYI: There is a ss version of the same solenoid, this is what is in my homebuilt. Some grades of ss are still magnetic but this hasn't been checked for the internal parts. The nickel plated steel bit for the magnetic circuit was replaced with a pure nickel part. z Thanks for the info. Just for the record this was a used piece of equipment I bought from the UK arrived in this condition. It cleaned up like new. John
(Online)

4th June 2008, 02:02	#176 (permalink)
osiris Custom Title Allowed! Current Rebreather/s: Inspiration Classic Sport Kiss Home Build Other Rebreather/s: Home Build Join Date: Feb 2006 Location: Auckland Posts: 319	Re: HammerHead Revisions and Issues Quote: (Originally Posted by jkaterenchuk) I had a similar problem in the past. Checked for the voltage changes across the terminals. Voltage changes were apparent as the contoller sent a signal to fire solenoid. I took it apart and the pictures speak for themselves. John Looks like I have a rusted solenoid as there was condensation in the O2 line when I took it off and being ferrous it's most likely that the solenoid would have rusted shut. Oh well, drag out the wallet agin..... Appreciate everyone's help with this. cheers
(Offline)

4th June 2008, 08:24	#177 (permalink)
*jradomski* Moderator Current Rebreather/s: Inspiration Classic Sport Kiss Optima rEvo Other CCR Home Build Other Rebreather/s: Inspiration Vision Evolution Megalodon Classic Kiss rEvo Other CCR Home Build Join Date: Mar 2005 Location: "Da" Bronx Posts: 3,001	Re: HammerHead Revisions and Issues Quote: (Originally Posted by osiris) Looks like I have a rusted solenoid as there was condensation in the O2 line when I took it off and being ferrous it's most likely that the solenoid would have rusted shut. Oh well, drag out the wallet agin..... Appreciate everyone's help with this. cheers I would order a new solenoid from kevin, but don;t throw the old one out.. I would clean it up and keep it as an emergency spare.. Once you get the new solenoid, I would remove the new coil and swap it with the one thats already soldered in.. The coils rarely go bad, and its easier just to swap the mechanical bits.. __________________ Joe Radomski CCR Trimix Instructor Trainer ANDI Instructor Trainer Director #10 All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.
(Online)

23rd July 2008, 02:12	#178 (permalink)
kwinter New Member Current Rebreather/s: Optima Other Rebreather/s: Join Date: Sep 2005 Location: NJ Posts: 47	Re: HammerHead Revisions and Issues Since no one has posted on this wish list in a while, I would like to propose a log function in the handset(s). I am amazed that a $50 hockey puck computer will record a log of a bunch of dives, but the HH doesn't even give a review of the last dive. An upload capability/interface would be nice, but that seems to involve hardware as well as software. I think the log should be fairly easy. I've discussed the dive log issue with Kevin before and he seemed agreeable to it. Any word on whether this will become reality? I'm holding off on upgrading to the delrin handsets to see what's coming down the pipeline. Ken
(Offline)

23rd July 2008, 12:12	#179 (permalink)
osiris Custom Title Allowed! Current Rebreather/s: Inspiration Classic Sport Kiss Home Build Other Rebreather/s: Home Build Join Date: Feb 2006 Location: Auckland Posts: 319	Re: HammerHead Revisions and Issues Quote: (Originally Posted by kwinter) Since no one has posted on this wish list in a while, I would like to propose a log function in the handset(s). I am amazed that a $50 hockey puck computer will record a log of a bunch of dives, but the HH doesn't even give a review of the last dive. An upload capability/interface would be nice, but that seems to involve hardware as well as software. I think the log should be fairly easy. I've discussed the dive log issue with Kevin before and he seemed agreeable to it. Any word on whether this will become reality? I'm holding off on upgrading to the delrin handsets to see what's coming down the pipeline. Ken Log would be good - changing from AA batteries to something with more life would be better...
(Offline)

23rd July 2008, 12:19	#180 (permalink)
diverreb DE/MD/NJ Wreck Diver Current Rebreather/s: Optima Other Rebreather/s: Join Date: Mar 2007 Location: Dover, DE Posts: 595	Re: HammerHead Revisions and Issues Ken, I agree 100% on this issue. I have no idea how difficult it would be to program in a Logging function, but it would be a great addition. I'd love to see a 10 dive log available on the units. Trish.... Try to have this, along with an adjustable last stop depth, and a fix for the remaining 1 minute of Deco that takes 5 minutes to clear, ready by DEMA OK? The larger, brighter screen, cutting the size (Thickness) in half, and the reliable wireless technology can wait until the following DEMA. Richie
(Offline)

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