Hollis Explorer User Manual - page 64
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white vinegar and a soft brush can be used to achieve this.
Inspect this
connection regularly.
MECHANICAL FITTING
The sensor should be fitted into the EXPLORER Sensor Module.
Check the O-rings around the filter carrier are not damaged. Ensure the
O-rings are lightly greased.
Ensure the absorbing material is clean, dry and not damaged. The filter
assembly should be periodically checked for water or mechanical dam-
aged. It is advised to keep spare replacement filters. The filter is the main
protection for the sensor from the breathing loops general environment.
If damage occurs to the filter or it becomes exhausted, then damage will
result to the CO
2
sensor itself. So always keep in it good condition.
NOTE: After a days diving, you can remove the Sensor Mod-
ule from the rebreather and keep the Sensor Module (and the
sensors) in a dry environment (air conditioning if possible)
until the next dive. Removing the CO
2
filter assembly to venti-
late the CO
2
sensor is also advised.
CALIBRATION SCREEN
To access the CO
2
feature for calibration go to the "CO
2
option" in the Pre-
dive screens.
WARNING: The CO
2
sensor MUST always be calibrated in fresh
clean air, outside, preferably at sea level.
Select the CO
2
option (Fig. 3.25) and EXPLORER will prompt you through
the setup procedure and calibration will occur automatically.
Always check that the sensor reading after calibration reads approximately
0.4± 0.1 mBar.
DIVE SCREENS
In the Main Dive screen (Fig. 3.26) the CO
2
reading is found by access-
ing the STATUS screen by a double press of the right button. Then scroll
Fig. 3.25
Fig. 3.26
!