Monitoring The Elevated Vacuum Environment; Verifying The System If Vacuum Loss Occurs & Flow Chart - Ottobock Harmony 4R144 Instrucciones De Uso

8.0 Monitoring the Elevated Vacuum Environment

A Vacuum Gauge Assembly is included with the 4R144 and 4R150 Pumps.
We recommend purchasing the 4R130 Harmony Complete Installation Kit, or the 4R131 Harmony Testing Kit for
monitoring and repair needs for the 4R133, 4R134, 4R135 units.
To verify that the Harmony System can maintain an elevated vacuum environment, it is necessary to temporarily
install a vacuum gauge. To do this, remove the Vacuum Line from the Harmony Intake Valve (Fig. 10). Next,
take the Vacuum Gauge Assembly and attach the Vacuum Line (short side) to the Inlet Valve (Fig.1, Pos. 1) and
connect the socket-side Vacuum Line to the open barb on Vacuum Gauge Assembly (Fig.11).
While the patient is standing and wearing the properly fitting Harmony System, cycle the Harmony Pump to
generate a vacuum between 15-25 in. Hg. (508-847 millibars). Stop cycling the pump and verify that the vacuum
is maintained when it is not being cycled. If the vacuum is maintained, the system is functioning correctly. If
vacuum loss does occur, it will be necessary to check the system as shown in Section 8.1.
8.1 Verifying the System if Vacuum Loss Occurs – See Flow-Chart
To determine if the vacuum loss exists in Zone 1, 2 or 3 (Fig. 12) install gauge as described in section 8.0 (Fig. 11).
Cover the hole on the inside of the socket with a piece of tape that is not air-permeable (such as PVC tape). Cycle
the pump to reach 15-25 in. Hg. (508-847 millibars). Check to see if vacuum level is maintained when the pump is
not being cycled.
Continue to the Flow-Chart
10 | Ottobock Harmony