M.O.D Halcyon Product

[PreppyDriver]

Hello all,

First time posting to this forum.
I recently picked up Halcyon Sidemount kit (H75 1st stage & Halo 2nd).
Question:What is Maximum Operating Depth (MOD) of the H75. I didn't see it in the specifications sheet, but may have missed it. We know it's basically a Blue ScubaPro MK25. Just looking for a link or information from a deep diver. This is for my general knowledge and having faith in the product. Thank you in advance.

 

[crofrog]

You’re not going to out breath it ever. But as with most en250:2000 regulators it is tested to 50m on air with breathing rates to support 2 divers at a high consumption.

This test represents the minimum for the regulator to meet the certification standard and the h75 will far exceed it by the time you had enough training to care about the answer you’ll know it doesn’t matter

 

[PreppyDriver]

Thank you for taking the time in contributing to this thread and informing me of this products performance standards and expectations.

You’re not going to out breath it ever. But as with most en250:2000 regulators it is tested to 50m on air with breathing rates to support 2 divers at a high consumption.

This test represents the minimum for the regulator to meet the certification standard and the h75 will far exceed it by the time you had enough training to care about the answer you’ll know it doesn’t matter

 

[Mobulai]

You’re not going to out breath it ever. But as with most en250:2000 regulators it is tested to 50m on air with breathing rates to support 2 divers at a high consumption.

This test represents the minimum for the regulator to meet the certification standard and the h75 will far exceed it by the time you had enough training to care about the answer you’ll know it doesn’t matter

Aren’t they en250A certified — basically that described above + <4degC water

Here are also couple of factoids why you’ll never be able to out breath them:
h75 is rated at ~8500 lpm
Halo is rated at ~1600 lpm
(According to SP specs for their equivalent mk25/g250v)

No tank valve can cope with that tremendous flow; the best of them can maybe do 1200ish (idk tbh an exact number, but it still doesn’t matter)
if they could handle higher:
At 1st stage rate: 10~15s to empty
At 2nd stage rate: 1~1.5m to empty

You got a couple of great regs that will serve you well, and will perform at any depth
the limiting factors for depth are human physiology (gas density, co2 retention…) and not the regs; we can “comfortably” and sustainably breathe gases at max ~6g/l and beyond that you risk hypercapnia (co2 toxicity); He can mitigate that but also HPNS is another limitation

Welcome to SB and happy diving