HAMMERHEAD 'revision B - version 5.4'

Deepdiver

I am looking at purchasing one of the above a Hammerhead revision B - version 5.4.... For my Classic Inspo.

Having only read some articals on these, can anyone give me a heads up on the unit, is it any good? Good point bad points?

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Nick. Non CE gear, so it CANNOT be used in any form of teaching capacity in the uk (safety diver or instructor).

I hear nowt but good stuff about them, apart from their battery munching habits

/Zak

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divetheworld

Ask Joe Radomski on this board, he might know one or two things about it .
http://www.rebreatherworld.com/members/jradomski.html


Zak's absolutely correct, under the DAW regs. they are not allowed.

Brent.

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Mark Chase

Just got my HH

First dry impressions of it are:

God those hand sets are large

Menu is scroll through so don't miss the item you want

Menu resets after doing an item so you have to scroll through again to get another one

You cant program the thing without the solenoid firring so its got to be done with the unit put together and keeping the pp02 above 0.4

The preset PP02s miss 1.3? but there is a custom setting so you can use that

Love the GF based deco, I can understand GF's I felt the range of options was good.

Gas programing is a bit of a PITA a la VR3. Why you have to name the gas is beyond me. whats wrong with 15/65 as a name?

Absolutely adore the head, Its sooooooo clean and clutter free. Even the HUD wiring is potted.

Over the moon with how simple it is to fit a VR3 4th cell

HUD looks interesting but I will wait to see how it performs in use. I have to say I prefer Uri's three green light three red light system of HUD. Its just so intuitive.

Having to switch set points on both master and slave and having to calibrate both master and slave seems a bit of a faf but I am sure I will get used to it.
I assume there is no need to switch set points to high set point on the slave? after all it doesn't do anything and will read a set point as set by the master?

Maby it will screw up deco calculations

All in all after one solid day of pushing buttons and three days reading the manual Id say I like it dry.

Next week Ill tell you how I like it wet.

ATB

Mark Chase

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See my "Doing It Chasey" video where I'm locked into a padded room, naked, with two ball bearings and within an Hour, I manage to lose one and break the other!!!

Kevin Juergensen 16/11/08
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PCDiver

For those diving in salty murky conditions: SOAK IN CLEAR WATER IMMEDIATELY and make sure the pressure transducer hole is filled with silicone before the dive. This will prevent clogging.

For those diving in clear warm water: you lucky bast!"$§ds!

Mark, you're gonna love it. The O2 control is much smoother than the Classic.

dave t

Mark

you will need to switch setpoints up and down on the secondary as well otherwise the HUD will be off

Dave

jradomski

mark,
If the unit is calibrated and the average po2 is above a 0.19 you can do all the programming you want without the unit assembled.. just go to the solenoid firing at set it to manual. ALso make sure its set to OC so it doesnt flash the backlight..


You do HAVE to calibrate both

Whether you REALLY have to change set points on secondary as well depends on first the HUD mode, and if you care about the alerts on the handset..

If you use po2 mode, then you can pretty much say screw the secondary and just watch the blinks of course you may get a "warning" or "alert" on your handset but if you arent looking at it so waht..

Now if you use the alarm mode (like I do) you have to switch because the tstaus red green or yellow is determined by how far you are from what it things the setpoint you are running is..

The setpints can be abything you want, alot of people use the 1.2 for normal and 1.4 during deco... I dont use 1.3 myself... I use a 1.0 to 1.1 on bottom and bump it to a 1.4 during the deco phase



The scrolling isnt that bad in real use.. you really dont use it much except during the initial setup.. mostly just presses to scroll through the po2.. You might use them during an emergency..

I find most of my settings remain the same.. I occasionaly use the gas menu and the calibrate menus is used but thats really about it.. I normally always run 10/100 as the GF so I dont even have a need to go into that menu..

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All posts are personal opinions and DO NOT reflect any affiliated agency unless specifically stated.

Mark Chase

Thanks for the helpful replies.

I was aware both master and secondary must be calibrated but I hadn't realized the HUD function would be impaired if i didn't alter the set point on the secondary.

You just know I am going to forget to switch it at some point

I assume the pressure transducer hole is the little one on the face plate?

DOH Set solenoid to manual... obvious. I should have figured that out for my self.

Still loads to figure out.

Thanks again.

ATB

Mark Chase

__________________
See my "Doing It Chasey" video where I'm locked into a padded room, naked, with two ball bearings and within an Hour, I manage to lose one and break the other!!!

Kevin Juergensen 16/11/08
[/quote]

divetheworld

I'd be really interested in how you get on Mark, from a new users perspective. Warts 'an all.

Brent

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PCDiver

Correctemundo - There are actually two, one on the primary AND one on the secondary