Dive Rite O2ptima Owner's Manual download pdf (Page 45)

O ptima FX Owner’s Manual

Ch. 6 Pg. 3

A common problem with many rebreathers is corrosion of the sensor

wires. This usually requires the user to ship the unit back to the

factory for repair. The O2ptima has taken a modular approach, and

replacing the wiring only takes minutes. Carrying a spare harness in

the save a dive kit is highly recommended.

All sensor connections on the O2ptima are color coded, simply match

up the colors. Be aware the certain colors look similar such as orange

and red, and black and brown. The sensor block is numbered with

Brown being the color code for sensor #1, Red for sensor #2, and

Orange for sensor #3. Using this code as a guide, connect the proper

molex connector for each cell and slide the black protective cap in

place.

The sensor harness should now be connected to the banana block matching the colors as illustrated

above. It is very important the black connection on each sensor is correctly installed into the proper

jack otherwise the associated oxygen sensor will not work correctly. Place the sensor plate in the

head and secure with the SS screw.

Locate the RED hose connector. Inspect and lubricate the o-ring and

install fitting. This connector is on the inhalation side of the loop, so

it is color coded Red. The inhalation hose connector follows the same

convention as all of the red connections, it is a left handed thread and

tightens counter-clockwise.

End-Cap Assembly

Locate the BLACK hose connector. Inspect and lubricate the o-ring

and install fitting. This connector is on the exhalation side of the

loop, so it is color coded black. The exhalation hose connector

follows the same convention as all of the black connections, it is a

right handed thread and tightens clockwise.

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Dive Rite O2ptima Owner's Manual Page 45