Service manual

Rad-8 Signal Extraction Pulse Oximeter Service Manual
4-2
each key-press with an audible beep tone or by indicating an
associated change on the display.
4.4 Alarm Suspend Indicator
4.4.1 Induce an alarm condition.
4.4.2 Press the Alarm Suspend button and cycle through the different
indicator levels. The yellow indicator will blink on when the
alarms have been suspended.
4.5 Alarm Volume Test
4.5.1 Press the Enter button. Monitor displays should show “AL” and
“3”.
4.5.2 Press the UP arrow button and cycle through the four different
volume levels. Make sure the tone does not have a harsh or
raspy tone due to the speaker rattling in the plastic housing. The
tone heard should be louder with each press. Press the DOWN
arrow button and cycle through the different volume levels. The
tone heard should be quieter with each press. Verify both
speakers are working.
4.5.3 Return the volume to the factory default level 3.
4.6 Alarm Limit Test
4.6.1 With the monitor turned on, depress the ALARM LIMITS button
and enter alarm menu. Change the High Saturation Alarm
parameter to a value two points below the currently selected
value, and accept the change by pressing the Enter button.
4.6.2 Verify that the newly set parameter is shown on the Saturation
Alarm Limit Display.
4.6.3 Return the High Saturation Alarm parameter to its original setting
and accept the change by pressing the Enter button.
4.6.4 Repeat steps 4.6.1 to 4.6.3 with the Low Saturation Alarm
parameter.
4.6.5 Repeat steps 4.6.1 to 4.6.3 with the Low and High Pulse Rate
Alarm parameter.
4.6.6 Reset the alarm limits again to the original settings and accept
the changes by pressing the Enter button.
4.7 Brightness Test
4.7.1 Press the Display Brightness button. LED displays should show
“brt” above and “2” below.