Datex-Ohmeda Anesthesia Delivery Unit S/5, Техническое справочное руководство

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Datex-Ohmeda ADU
4-4
Document No. 8502852
Batteries
CAUTION If the batteries become discharged they will be damaged. Even if the ADU not is being
used the batteries will slowly be discharged.
NOTE: If the ADU is stored more than two months it is recommended to connect the ADU to mains and
let the batteries be fully charged. An alternative method is to temporarily remove the fuses from the
battery charger board.
1.
Disconnect the power cord from the mains power supply outlet and check that the ADU is
running on battery power. Check that a battery symbol with a green bar appears in the upper
right corner of the screen. (The green bar indicates the remaining battery capacity).
2. If the batteries are discharged, they should be charged for at least 4 hours by keeping the power
cord connected to the mains outlet. The ‘Charge’ battery symbol should then disappear from
the message screen.
3. The batteries are always being recharged when the mains plug is connected and the green light
is lit on front panel.
Central gas supply hoses
1. Check that the central gas supply hoses (O
2
, Air and N
2
O) are in good condition.
2. Check that the connectors are suitable for hospital pipeline gas outlets or pendulum gas
outlets.
3. Connect the hoses to the hospital pipeline gas outlets.
4. Check that the front panel gas pressure gauges show the correct inlet pressures
(2,7 - 8,0 x 100 kPa (39.16 - 116.0 PSI))
Scavenging
When a patient system that returns gas to the bellows block is used, the excess gas flows through the
overflow or the APL valve to the scavenging system inside the ADU.
Central active high/low vacuum scavenging system
If the hospital has a high vacuum scavenging system— which has a minimum vacuum of -300
mmHg (-12 in Hg)— requiring a choke orifice gas connector, or if the hospital has a low vacuum
scavenging system:
1.
Connect the scavenging hose from the EVAC outlet on the ADU to the central system.
2. Check that the scavenging flow indicator is in operation.
Central Passive scavenging system
If a hospital has a passive scavenging system, the A-SEJ2 option is required. This is an internal
scavenging ejector that is built into the ADU.
The optional scavenging ejector with a flow adjusting control, is attached to the wall gas unit module
(see picture below). The ejector takes its driving gas from the central air supply and the waste gas is
internally directed to the EVAC outlet.