Welch Allyn Spot Vital Signs 4400 Service Manual page 77

Service manual
10. Click Close.
11. To view the results, open the active log file by selecting File > View Log File > Active log file
> Ok.
12. To record the results of your test, go to "Service record."
NIBP overpressure test (Standard unlicensed edition)
The NIBP overpressure test is performed automatically using the service tool. The overpressure test
verifies that the NIBP system will prevent the pressure from exceeding 329 mmHg. To pass this test,
the device must shut down the pump and open the valves when the pressure is between 280
mmHg and 329 mmHg.
Perform an NIBP overpressure test
1. Set up the test equipment.
2. Launch the service tool on the PC.
3. If the simplified interface is active, choose the Service option.
4. Log on with your user ID and password or with ADMIN as the user ID and leave the password
field blank.
5. Power on the device.
6. Select the device you want to test from the device list.
Click NIBP Sensor under the Device Information tab.
7.
8. In the NIBP Sensor pane on the right side of the window, click Over Pressure Test.
9. Follow the prompts until the test completes.
10. Click Close.
11. To view the results, open the active log file by selecting File > View Log File > Active log file
> Ok.
12. To record the results of your test, go to "Service record."
NIBP accuracy check (Standard unlicensed edition)
The NIBP accuracy check is performed manually using the service tool to control the valves. The
accuracy check compares the reading from the primary transducer pressure shown in the service
tool window with the reading from an external calibrated digital pressure meter. The results of this
check are not recorded in the service tool log file. To record the results for your records, copy the
table in the service record section of the service manual. If a calibration is required, run the NIBP
calibration included with the Gold edition of the service tool.
NOTE If you are performing this test after performing the NIBP leak test, skip to
step 7.
WARNING Patient safety risk. If the primary transducer fails, the system might not
identify an overpressure condition at the right limit, causing injury when the
device is re-connected to a patient. To ensure patient safety, Welch Allyn
recommends that a qualified service technician perform a full functional
verification and calibration on an annual basis.
Functional verification and calibration overview 73