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Dräger Medical AG & Co. KGaA
Service Mode Savina Version 3.0
Page 82
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Test step 5 is used to read out the O2 supply pressure ”O2-supply pressure” of the valve block and
to switch each valve on the valve block (V7.1 through V7.8) individually. The valve can be switched
on or off using the "Valve status" function. The respective valve can be selected using the "Valve"
function. The switching noise of the valves is clearly audible. To perform a more accurate test, it is
possible to connect a flowmeter tube to the valve block and to test each valve with the respective
restrictor. The test values listed in the table apply to a supply pressure of the valve block of
2 bar ± 0.01 bar (with open valve).
”ext. DC-supply” ”NC”
External AC voltage not present or faulty.
"int. battery" "OK"
Internal battery is present.
"int. battery" "NC"
Internal battery is not present or is faulty.
"int. battery" "CHARGING"
Internal battery is present and is being charged.
"charge state"
0% to 100% internal battery capacity.
Valve/restrictor
Restrictor value
Valve/restrictor
Restrictor value
V7.1/R5.1
30 L/min ±2 L/min
V7.5/R5.5
12 L/min ±1 L/min
V7.2/R5.2
30 L/min ±2 L/min
V7.6/R5.6
12 L/min ±1 L/min
V7.3/R5.3
30 L/min ±2 L/min
V7.7/R5.7
3.9 L/min ±0.3 L/min
V7.4/R5.4
30 L/min ±2 L/min
V7.8/R5.8
3.9 L/min ±0.3 L/min
Status
Key:
