GE Datex-Ohmeda S/5 Series - 5 Set;Test

Datex-Ohmeda S/5 Compact Anesthesia and Compact Critical Care Monitors
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Document no. M1144955-001
5 Set/Test
In the power supply unit, there is a safety element,
which needs refreshing at least every 1.5 seconds. If
the main CPU's software will not refresh, safety
element gives reset to main CPU. In normal
operation the main CPU's software refreshes safety
element every 0.2 seconds.
The purpose of the safety element is to restart the
monitor if there is a serious malfunction. This feature
is useful in two cases: when the main CPU's software
is not able to control the monitor, and when the
software controls the monitor but detects a serious
malfunction.
Watchdog tests ensure the proper functionality of
the safety element's various sections.Watchdog test
ensures directly that the watchdog of the power unit
functions properly. Choosing this test prevents
safety element from refreshing and shows running
seconds with an accuracy of 0.1 seconds.
The test should have the following result when the
safety element is working properly: The monitor will restart after 1.5 seconds from the start of the test. In
malfunction: '>20 s' is displayed, and the test will interrupt. In this case, the fault is in the safety element of the
power unit.
WD by Overload test ensures the functionality of a feature, where the software controls the monitor, but
detects an overload situation in the main CPU.
The test should have the following result when the feature is working properly: The monitor will restart after 15
seconds from the start of the test.
WD by UPI test ensures the functionality of a feature, where the software controls the monitor, but detects a
malfunction at the UPI section. The test will prevent the UPI processor from functioning during the test.
Immediately after the test starts the plotting stops. The test should have the following result when the feature
is working properly: The monitor will restart the UPI section without any visual effects.
WD by GSP ensures the functionality of a feature, where the software controls the monitor, but detects a
malfunction at the GSP section. The test will prevent GSP processor from functioning during the test.
The test should have the following result when the feature is working properly: The monitor will restart the
GSP section without any visual effects.
Factory Reset restore factory default settings and clear data memories. Factory reset should be run if
monitor software is replaced or if the SRAM/Timekeeper IC, or its battery is replaced.