Integrated Suction Regulator Tests - Datex-Ohmeda S/5 Avance Technical Reference Manual

6.8 Integrated Suction Regulator tests

Note
Gauge Accuracy
Note
Flow Test
1009-0357-000 11/03
There are two types of integrated suction systems for the Avance anesthesia machine:
• Continuous Vacuum Regulator, Three-Mode, Pipeline Vacuum
• Continuous Vacuum Regulator, Three-Mode, Venturi Derived Vacuum
For Pipeline Vacuum systems,
a vacuum source of at least 500 mm Hg (67 kPa or 20 in Hg) is required for testing. The
supply open flow must be a minimum of 50 L/min.
For Venturi Derived Vacuum systems,
an O or Air source of at least 282 kPa (41 psi) is required for testing.
2
The gauge needle should come to rest within the zero range bracket when no suction is
being supplied. Gauges which do not comply may be out of tolerance.
To check gauge accuracy, be sure that the test gauge is capable of measuring 0 to 550
mm Hg with an accuracy of ±1% of reading.
1. Connect the suction patient port to the test gauge.
2. Turn the mode selector switch to I (ON).
3. Ensure that the vacuum test gauge is in agreement with the suction vacuum gauge
± 38 mm Hg/5 kPa at the following test points.
Test points
Suction vacuum gauge
100 mm Hg (13.3 kPa)
300 mm Hg (40 kPa)
500 mm Hg (66.7 kPa)
Note: To check flow accuracy, be sure that the flow test device is capable of
measuring 0–30 L/min.
1. Connect the patient port of the suction regulator to the flow test device.
2. Rotate the suction control knob fully clockwise (increase).
3. Turn the mode selector switch to I (ON) and verify that the flow rate is:
• at least 20 L/min.
4. Disconnect the test flowmeter.
(Tests continue on next page.)
6 Maintenance
Test gauge tolerance
62–138 mm Hg (8.3–18.4 kPa)
262–338 mm Hg (35–45 kPa)
462-538 mm Hg (61.6–71.7) kPa)
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