Hollis Explorer User Manual - page 113
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SENSOR MODULE - DISASSEMBLY/ASSEMBLY – OXYGEN SENSOR
MAINTENANCE/TESTING
• Remove the Sensor Module (Fig. 6.2) from the Canister
• Remove all 3 oxygen sensors (Fig. 6.3)
• Inspect the Thermal Profile Monitor (TPM) body and O-ring for damage
,and clean the TPM with warm soapy water.
NEVER expose the sensors to
water.
• Clean the sensor jack connectors with a soft cloth (look for damage and
corrosion).
DANGER: After sensor replacement you must ensure the unit is
calibrated by completing a full pre-dive sequence.
DANGER: It is important that oxygen sensors are maintained
and cared for. Avoid excessive moisture. Some moisture will
always form during a dive but if the rebreather has been flood-
ed the sensors MUST be replaced.
CO
2
SENSOR TESTING/ DISASSEMBLY/ASSEMBLY
Having removed the Sensor Module, carefully remove the CO
2
sensor
protection cap and the CO
2
sensor (Fig. 6.4). Handle the CO
2
sensor with
care.
• Inspect the mini-jack connector and carefully wipe clean with a soft cloth
• Remove the yellow sponge inside the cap and allow it to dry.
DANGER: A dry sponge must be fitted prior to every dive to
ensure accurate CO
2
readings.
• Replace the sponge every 10 dives.
• Refit the Sensor Module into the Canister
DANGER: After replacement you must ensure the unit is cali
brated by completing a full pre-dive sequence.
Fig. 6.2
Fig. 6.3
Fig. 6.4
6
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