Sub MkIIP Oxygen & Carbon Dioxide Monitor
User Manual - US Navy Version
Document Ref
: AS2-802-14 -
January 2016
Page 10
6.2
Use of calibration gas
Use of test gases should only be performed by suitably trained personnel familiar with the
handling and use of calibration gases. Test gases should only be used in a well ventilated
area. The instrument has been designed to allow the use of a wide range of certified test
gases from various suppliers.
The oxygen and CO
2
sensors are located immediately adjacent to the corresponding displays.
The calibration adaptor supplied with the instrument will be required and should be fitted as
shown in Figure 2. The longer free pipe should be connected to the outlet of a test gas bottle
flow regulator. The flow adaptors in the chain should then be firmly inserted into the Oxygen
and CO
2
sensor inlets. The shorter free pipe is merely an exhaust which prevents
atmospheric contamination of the gas in the last sensor and should not be blocked. The Gas
flow from the regulator should be set to between 0.05 and 0.26 US gal/min (0.2 and 1.0
ltr/min).
Figure 2 - Typical Use of Test Gas and Calibration Adaptor
BATT
EXT
OFF
DD:HH
MAINTAIN PRESSED TO
RESET ELAPSED TIME
ELAPSED TIME
BACKLIGHT
CONDITION
BATTERY
HOURS
POWER
ESTIMATED
%SEV
FSW
DEPTH
OXYGEN
TEMPERATURE
°F
SUB Mk II P
CARBON
DIOXIDE
%SEV
