vPad-A1 OPERATORS MANUAL
4.7.4 Over Pressure and Pop-Off
The Over Pressure feature is intended to test the pressure relief valve limits in an
NIBP monitor. A typical test routine involves pumping air into the pneumatic
system until the high pressure triggers the relief valve, which will then vent the
system to a safe pressure level.
Over Pressure parameters are not active during setup. Access the feature setup
page by swiping right from the Pressure page (
Figure 82
) or swiping left from the
Leakage Rate page (
Figure 91
), then press when ready.
4.7.4.1 Target Pressure
The
Target Pressure parameter controls the highest pressure reached during
an Over Pressure test. This is generally the maximum acceptable relief
pressure for the safety valves. It can be set from 0 to 400 mmHg, in 1 mmHg increments.
4.7.4.2 Release Time
The Release Time designates the amount of time allowed for the pressure relief valves to vent
system pressure to a safe level. This value is generally specified by the manufacturer of the monitor.
It can be set from 1 to 999 seconds, in 1 second increments.
4.7.4.3 Running Over Pressure Tests
Before starting an Over Pressure test, first place the NIBP monitor in
service mode or pop-off/relief pressure test mode, as appropriate. When
setup is complete, the button will intiate the test and show the
Result screen.
In the Result screen, the Target Pressure parameter is displayed as “Pop
Off Pressure”. The result assignment (PASS/FAIL) buttons are disabled
while inflation and pressure relief is in progress, as indicated above the
Comments box by a spinning wheel .
The button can abort the Over Pressure test at any time when
it is busy. The test can then be restarted with the button.
Figure 88
Figure 89
Manual Operation/Chapter 4 # Page 61