Operating Manual OXI-dive
TM
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Page 7 of 19
KAB Carbon Dioxide Absorber
The K A B c a r b o n d i o x i d e a b s o r b e r h a s design
registrations and patents. It is transparent and single patient
use only. Manufactured from tough medical grade
polycarbonate it is further strengthened by the circular
design. The integrated uni-directional silicone valves are
vertically orientated and large in diameter to reduce
resistance to breathing. The adjustable pressure limiting
(APL) exhaust valve is also an integral part of the absorber
and includes a 30 mm scavenging port. In accordance with
Australian and International Standards, the exhaust valve
CLOSES by turning clockwise. When OPEN (one turn only
anti-clockwise) the central spindle has free movement and
excess gases in the breathing circuit are automatically vented.
In breathing casualties, with the APL (exhaust) valve open, the
spindle automatically maintains the volume of gas in the breathing
bag without adjustment at all flowrates (0.5-8 L/min).
The KAB carbon dioxide absorber holds 400 g of soda lime lasting in excess of 2½ hours.
The asymmetrical divider and the fluted openings in the grates minimise 'channelling' to
increase the efficiency of absorption. This can be verified by the even change of colour of
the indicator in the soda lime during use. The silicone valves are arranged so that during
expiration the gas flow is directed to the rebreathing bag through that part of the soda lime
in the right side of the absorber. On inspiration the gas is drawn through the remainder of
the soda lime producing an efficient DOUBLE absorption effect.
During operation the soda lime becomes warm and the indicator gradually changes colour.
The soda lime will change from Pink to White as it becomes exhausted.
The ‘INHALE’ and ‘EXHALE’ ports of the KAB absorber have 22 mm male tapers for
attachment of the breathing circuit. The breathing bag mount is a 22 mm female port* to
conform to the Australian/New Zealand Standard (AS/NZS 2496). A 22 mm male/male
elbow fitting is provided for connection to the rebreathing bag either directly or via an
extension hose.
*NOTE:
In the corresponding International Standard the breathing bag mount is a
22 mm male port. In this case the 22/22mm male elbow provided should be permanently
fitted to the breathing bag port of the KAB™ absorber.
WARNING:
Do not force the control knob of the APL (exhaust valve) in either
direction. The control knob rotates smoothly and easily.
KAB
