Covidien Nellcor GR101704, Service Manual

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Power
Service Manual 6-5

WARNING:
Power-up performance tests verify both power-on self-test (POST) and
power-on defaults and alarm range limits.
At power on, the monitoring system performs a power-on self-test (POST), which
tests the circuitry and functions, then proceeds to the default monitoring screen.
Attach a sensor cable and a recommended sensor and the monitoring system is
ready to register and record patient trend data. Reference
Connection to Nellcor™
Sensors , p. 5-7.

Note:
Physiological conditions such as excessive patient movement, medical procedures, or
external agents such as dysfunctional hemoglobin, arterial dyes, low perfusion, dark
pigment, and externally applied coloring agents such as nail polish, dye, or pigmented
cream may interfere with the monitoring system’s ability to detect and display
measurements.

Note:
In addition to serving as the POST pass verification, the POST pass tone also functions
as an audible confirmation that the speaker is performing properly. If the speaker does
not function, the alarm warning sounds cannot be heard.

Note:
For standard usage, connect sensor cables prior to turning on the monitoring system.
Have a qualified service technician perform any functional testing prior to usage.
To power up the monitoring system
1.
Connect the monitoring system to an AC power source.
2.
Verify the monitoring system is off and the AC Power Indicator lights.
3.
Turn on the monitoring system by pressing the POWER ON key.
4.
Within ten seconds, all pixels should illuminate. The monitoring screen should
display a corporate logo and the firmware version of the monitoring system.
5.
Observe the monitoring screen for the POST splash screen, which appears for
approximately five (5) seconds.
6.
Listen for three ascending tones then a one-second beep, indicating proper oper-
ation of the speaker and successful completion of power-on self-test.