GE Medical Systems Solar 9500 Service Manual page 92

Set up the Manometer
Start the Gain Calibration Test
5-8
Module Calibration: Calibrate Non-invasive Blood Pressure (NBP)
6. Turn the manometer on and adjust the range switch to the
1000 mmHg setting.
7. Under Calibrate gain select the Start button. The message Inflating
to cal pressure displays in the Calibration messages window.
The NBP module starts pumping up the cuff and the pressure in
mmHg displays under the Cuff pressure text and on the manometer.
When the pressure reaches approximately 250 mmHg, the pump
shuts off and the pressure drops slowly to about 240 mmHg before
stabilizing. If the pressure continues to drop at a rate of 1mmHg or
more for every five seconds, there is a leak in the NBP plumbing. If
there is a leak in the NBP plumbing, repair it and restart this
calibration procedure.
8. When the pressure has stabilized, select Enter pressure. Use the on-
screen keyboard to enter a pressure value that is one mmHg lower
than the current manometer reading. The message Gain calibration
complete appears in the Calibration messages window.
9. To verify the calibration select Start under Check calibration.
10. The message in the Calibration messages window changes to
Calibration check in progress. Verify that the pressure readings
(shown as CUFF in the NBP parameter box) on the monitor and
manometer are equal (± 1 mmHg) for at least one full minute. The
messages window changes to At calibration check pressure.
11. Select Stop under Check calibration and the message Calibration
check cancelled appears in the window. The cuff will deflate.
12. As part of the leakage test, use the bulb (hand pump) to increase
pressure beyond 300 mmHg. The monitor should deflate the cuff at
pressures exceeding 330 mmHg.
13. End the test. Close all open windows.
127(
After approximately 5 minutes, the monitor will deflate the cuff and
switch to normal operation.
14. Turn the manometer off and remove the test equipment from the
monitor.
Solar 9500 Information Monitor
2001085-061
Revision A