Datex-Ohmeda S/5 Avance Technical Reference Manual page 106

S/5 Avance
5-6
Test B
For all gases not used to supply drive gas to the ventilator:
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 in step 5b.
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. On the Main Menu of the Service Application, select Gas Diagnostics.
b. On the Gas Diagnostics menu, set the flow of the tested gas
to 10.0 l/min.
The test device reading must be greater than:
( ( ( ( 6 6 6 6 0 0 0 0 ) ) ) ) D D D D I I I I N N N N 221 kPa (32 psi)
( ( ( ( 5 5 5 5 0 0 0 0 ) ) ) ) P P P P i i i i n n n n I I I I n n n n d d d d e e e e x x x x e e e e d d d d 221 kPa (32 psi)
- If the test device reading under "high flow" conditions is less than
specified, readjust the regulator per the procedure in Section 5.1.3;
however, set the regulated pressure higher by the difference you
noted in this step plus 7 kPa (1 psi). This adjusts the "low flow"
regulated output to the high side of the specification so that the
"high flow" regulated pressure can fall within the specification.
- If the regulator subsequently fails the "low flow" specification
(step 3b) because the reading is too high, replace the cylinder
supply.
11/03 1009-0357-000