MK16 Basics

Question 1

Why don’t you mix Co2 absorbent?

Answer 1

Can cause channeling

Question 2

What does channeling of absorbent mean?

Answer 2

Gas can bypass granules and enter the breathing loop

Question 3

How long is absorbent good for?

Answer 3

30 Days

Question 4

What is the MK-16?

Answer 4

Electronically controlled
closed circuit
mixed gas
maintains constant partial pressure UBA

Question 5

How is partial pressure of O2 primarily controlled?

Answer 5

Battery powered electronic module

Question 6

What are the 2 partial pressure modes and depths for descent and ascent?

Answer 6

.75 down to 33 FSW
1.3 past 33 FSW and up to 13 FSW on ascent

Question 7

When is breathing gas vented

Answer 7

• During ascent when gas volume increases
• When diver manually adds and exceeds gas
• When breathing loop pressure exceeds surround water pressure during normal operations

Question 8

What is the normal working limit for MK16 N2O2 and HEO2?

Answer 8

N2 - 150
HE - 300

Question 9

What is O2 duration apprx?

Answer 9

5 hours at consumption rate of 1.4lpm

Question 10

What is absorbent duration directly impacted by and how?

Answer 10

Environment temp and depth
( Duration decreases with decreased temps and increased depths)