Filter
Top Products
Service manual Functional verification 15
Leak test
This tests the NIBP system for abnormal leakage.
If the NIBP system is leaking, check for leaks in the external plumbing before opening the
case to look for internal leaks.
If you determine that any NIBP module component is causing abnormal leakage, you
must replace the NIBP module before returning the monitor to clinical use.
1. Put the monitor in Service mode:
a. Power the monitor off.
b. Power the monitor on while pressing .
2. Attach a #1 neonatal cuff and hose to the monitor
Wrap the cuff securely around a solid cylindrical object of circumference between 1.6
and 1.9 inches (4.1 and 4.8 cm).
3. Press repeatedly until NIBP TEST appears in the message window and 0 is
displayed in the SYS and DIA windows.
4. Press once to select 80 mmHg (10.7 kPa). The cuff inflates to approximately 115
mmHg (15.3 kPa).
5. Wait 15 seconds, and note the current pressure.
6. Wait another 10 seconds and verify that the pressure has not dropped more than
8 mmHg (1.1 kPa) below the pressure noted in step 5.
If the pressure drop is greater than 8 mmHg (1.1 kPa), check the cuff, the hose, and all
external connections for leaks, and then repeat from step 3.
Caution Do not attempt component-level repair of the NIBP module. Any
change to the NIBP module requires that the monitor be returned to the factory
for NIBP module calibration.
WARNING Do not connect the monitor to a patient while the monitor is in
Service mode. Overpressure detection is disabled while the monitor is in NIBP
test mode.
Note
When you first enter the NIBP test mode, give the monitor about a minute to
initialize NIBP before you change the target test pressure.
When switching from one target pressure to the next, give the monitor time to
fully inflate and stop before you select the next target pressure.
In the NIBP test mode, press repeatedly to select the target NIBP test
pressure. The target pressure is displayed on the DIA LEDs. The measured
instantaneous pressure determined by the monitor is displayed on the SYS LEDs.
Note
In the NIBP test mode, and especially at small test volumes, the pressure
achieved can vary significantly (30-40 mmHg or 4-5.3 kPa) from the target
pressure.