CAUTION
Equipment calibration error can occur. This accuracy check verifies only
the accuracy of the primary transducer. If the safety transducer is out of calibration,
a calibration error can occur due to the pressure difference between the primary
transducer and the safety transducer. To avoid equipment calibration errors, Welch
Allyn recommends that a qualified service technician perform a full functional
verification and calibration on an annual basis.
Perform an NIBP accuracy check
NOTE
If you are performing this test after performing a previous NIBP check, skip
to step 7.
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.
7. Click
NIBP Sensor
under the
Device Information
tab.
8. Click
Accuracy Check
in the NIBP Sensor pane on the right side of the window.
9. Connect the 500 CC volume.
10. Turn on the pressure meter and zero if necessary.
11. Check the accuracy at 0 mmHg.
12. Record the reading on the pressure meter and the service tool and compare the results.
13. Using the hand bulb, pressurize the NIBP system to 50 mmHg ± 5 mmHg and allow 10
seconds for the pressure to stabilize.
14. Record the reading on the pressure meter and the service tool and compare the results.
15. Using the hand bulb, pressurize the NIBP system to 150 mmHg ± 5 mmHg and allow 10
seconds for the pressure to stabilize.
16. Record the reading on the pressure meter and the service tool and compare the results.
17. Using the hand bulb, pressurize the NIBP system to 250 mmHg ± 5 mmHg and allow 10
seconds for the pressure to stabilize.
18. Compare the reading on the pressure meter to the service tool reading and record the results.
19. Click
Open valve
to open the NIBP valves. Verify that the pressure on the meter and service
tool change to zero.
20. Click
Done
to complete the check.
21. To record the results of your test, go to “Service record.”
Perform an NIBP accuracy test without the Welch Allyn Service Tool
The following tools are required to perform this test:
•
Blood Pressure Bulb
•
Pressure Meter
•
Dual Lumen Pressure Tubing
•
Pressure Test Box
1. In Advanced settings, navigate to
Service
>
General
.
74 Functional verification and calibration overview
Summary of Contents for Spot Vital Signs 4400
Page 1: ...Welch Allyn Spot Vital Signs 4400 Service manual Software version 1 X...
Page 8: ...4 Symbols and definitions...
Page 34: ...30 Power up sequence...
Page 68: ...64 Field replaceable units...
Page 127: ...Interconnect diagram Service manual Appendix 123...
Page 128: ...124 Appendix...
Page 132: ......
