Nellcor N-180 Service Manual page 76

N-180 Pulse Oximeter Service Manual
с.
4.
e
the displayed 888 changes from green to red when the tone
changes.
All LEDs separately light in a scanning test pattern.
The PULSE SEARCH display remains flashing.
The bottom segment of pulse bar indicator remains lighted.
Adult Defaults and Alarm Limit Ranges
Perform the steps in the following table to check the adult defaults and
alarm limit ranges.
1. Press and hold HIGH SAT
button.
2. Press and hold HIGH SAT
button; rotate control knob
counterclockwise.
8. Press and hold LOW SAT
button.
4. Press and hold LOW SAT
button; rotate control knob
counterclockwise.
5. © Press and hold HIGH RATE
button..
6. | Press and hold HIGH RATE
button; rotate control knob
counter-clockwise.
Verify OXYGEN SATURATION
" displays an alarm limit of 100.
Verify OXYGEN SATURATION
display reduces to a minimum of
85.
Verify OXYGEN SATURATION
displays an alarm limit of 85.
Verify OXYGEN SATURATION
display reduces to a minimum of
20.
Verify PULSE RATE displays an
alarm limit of 140,
Verify PULSE RATE display
reduces to a minimum of 55.
7. Press and hold LOW RATE Verify PULSE RATE display
button. reduces to a minimum of 55.
8. Press and hold LOW RATE Verify PULSE RATE display
button; rotate control knob reduces to a minimum of 20.
counterclockwise.
9. Press and hold audio alarm off Verify OXYGEN SATURATION
button. displays 60 and that PULSE
RATE displays SEC.
10. Press and hold audio alarm off Verify OXYGEN SATURATION
button and rotate control knob display reduces to 30.
counterclockwise.
11. Press and hold audio alarm off Verify OXYGEN SATURATION
button and rotate control knob display increases to 120 and
clockwise. then reads off.
12. Set ON/STDBY switch to
STDBY.
13. Observe monitor front panel The monitor must perform the
and set ON/STDBY switch to
ON.
sequence as described in the self
test procedures in this section.