Datex-Ohmeda S/5 Avance Technical Reference Manual page 104

S/5 Avance
5-4
Test A
For primary regulators that supply drive gas to the ventilator (O
Under low flow conditions, the output pressure of a properly adjusted/
functioning regulator should fall within specifications listed in step 4e.
Under high flow conditions, the output pressure should not drop below the
specifications listed in step 5g.
1. On the Main Menu of the Service Application, select Gas Diagnostics.
2. On the Gas Diagnostics menu, select Gas Supplies.
3. Slowly open the cylinder valve for the regulator being tested and observe
the pressure reading for the cylinder.
4. Low Flow Test:
a. On the Gas Diagnostics menu, set the flow of the tested gas
to 0.5 l/min.
b. On the Gas Diagnostics menu, select Gas Supplies.
c. Close the cylinder valve and allow the pressure to decay to 2068 kPa
(300 psi) as indicated on the cylinder pressure display.
d. At the time that the cylinder pressure reaches 2068 kPa (300 psi),
select Main Menu on the Gas Diagnostics page to turn off gas flow.
e. Within one minute, the test device reading must stabilize between:
(60) DIN 372–400 kPa (54–58 psi)
(50) Pin Indexed 310–341 kPa (45.0–49.5 psi).
- If the test device pressure does not stabilize within one minute,
replace the cylinder supply.
- If the test device stabilizes within one minute, but the readings are
not within specifications, readjust the regulator (Section 5.1.3).
5. High Flow Test:
a. Slowly open the cylinder valve.
b. Remove the ABS breathing system from the machine to allow
continuous Insp Valve flow through the exhalation valve.
c. On the Main Menu of the Service Application, select Vent Diagnostics.
d. On the Vent Diagnostics page, select Gas Inlet Vlv ON/OFF to Open the
gas inlet valve.
Press the ComWheel to return focus to the selection menu.
e. Select Flow Valve Control.
or Air):
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