MK16 Primary Electronics

Question 1

Flashing green deeper than 33 FSW?

Answer 1

O2 greater than 1.45

Question 2

Flashing red deeper than 33 FSW?

Answer 2

O2 less than 1.15

Question 3

Alternating red and green

Answer 3

Only one sensor indicates low/high O2

Question 4

Alternating red and green with all 3 sensors within 1.15-1.45?

Answer 4

Low primary voltage

Question 5

What voltages are limiting factors when dealing with the primary battery?

Answer 5

Voltage <8.0 with voltmeter and after 12 hours of rest
Voltage <7.5 on secondary display

Question 6

What is max voltage on primary battery?

Answer 6

9v

Question 7

What is the operational battery life of the primary battery?

Answer 7

120 hours

Question 8

How many hours are left when primary display indicates alternating red/green and O2 sensors are within normal limits?

Answer 8

3-5 hours

Question 9

What is the normal operating sensor voltage for the O2 sensors in ambient air?

Answer 9

22mv to 28vmv

Question 10

What height may cause damage to O2 sensors

Answer 10

Greater than 3 feet

Question 11

Is there a shelf life for O2 sensors?

Answer 11

No, as long as mv is within 22mv to 28mv

Question 12

How long must you wait before performing O2 sensor test once removed from packaging?

Answer 12

60 minutes

Question 13

How does the O2 addition valve work

Answer 13

• Uses a piezoelectric crystal
• When voltage is applied, the crystal deforms causing the valve to open

Question 14

What rate of O2 is added from the O2 addition valve

Answer 14

5 liters per minute

Question 15

What happens if an electrical failure occurs with the O2 addition valve?

Answer 15

The valve fails in the closed position