Mindray VS-900, Operator'S Manual

Page: 135 / 192

16-7
16.5.2 NIBP Accuracy Test
The NIBP accuracy test is required at least once a year or when you doubt the measured
NIBP.
Tools required:

T-shape connector

Tubing

Balloon pump

Metal Vessel (volume 500±25 ml)

Reference manometer (calibrated with accuracy equal to or better than 0.75
mmHg)
Follow this procedure to perform the accuracy test:
1. Connect the equipment as shown.
2. Before inflation, check that the reading of the manometer should be 0. If not, open
the valve of the balloon pump to let the whole airway open to the atmosphere. Close
the valve of the balloon pump after the reading is 0.
3. Select [ Main ]
→
[ Maintenance >> ]
→
[ User Settings>> ]
→
Enter required password
→
→
[ Module Maintenance >> ]
→
[ NIBP Accuracy Test ]. The message [ Accuracy
Testing… ] is displayed in the NIBP parameter area.
4. Check the manometer values and the monitor reading. Both should be 0mmHg.
5. Raise the pressure in the metal vessel to 50 mmHg with the balloon pump. Then wait
for 10 seconds until the measured values become stable.
6. Compare the manometer values with the displayed values. The difference between
the manometer and displayed values should be within ± 3 mmHg.
7. Raise the pressure in the metal vessel to 200 mmHg with the balloon pump. Then
wait for 10 seconds until the measured values become stable. Repeat step 6.
Monitor
Connector for
NIBP cuff
Tubing
Manometer
Metal vessel
Balloon pump