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PRELIMINARY
8
Model 520A Service Manual
7
This section summarizes the operation of the Model 520A Pulse Oximeter. It is
intended as a quick reference and refresher for persons who have thoroughly
reviewed the Model 520A User's Manual (PN: 5693-23). Persons unfamiliar with
the Model 520A should thoroughly examine the User's Manual before referencing
the steps listed here.
1. If powering the monitor from the AC line voltage; Connect the line cord to the
monitor and plug into a properly grounded 3-wire outlet. Set the rear panel
power (Mains) switch to the | (on) position.
2. Press the front panel
Center displays
3. Use the Menu System to modify the operation of the monitor to best suit your
application. The Menu System menus include:
•
softkey - Use
ALRT
↓
to set the limit to the desired value. Note that the monitor will maintain
a spread of at least 5 digits between the upper and lower limit values.
•
softkey - enters Trend mode and draws trend memory on display.
TRND
•
then
MENU
volume of the audible beep with each detected pulse. Select
control alert volume.
•
then
MENU
time.
•
then
MENU
4. Verify that the SpO
your monitoring application.
5. Connect a SuperBright™ (87xx series) sensor to the front panel input. Apply
the sensor to the patient.
6. Check that within several seconds the patient's SpO
displayed on the monitor.
7. As necessary, refer to the appropriate sections within the User's Manual for
detailed operating instructions and explanations.
Summary of
Operation
key to turn the monitor on. Verify the Message
POWER
Connect SPO2 Probe
to select SpO2 or Pulse limits, then use the
SEL
softkeys - Select
AUDIO
- Select either 2 second or 8 second SpO2 averaging
AVG
softkeys - toggles backlight between bright and dim.
LITE
and Pulse Rate alert limit settings are consistent with
2
after the self-tests are complete.
to turn on/off and control the
Pulse
and Pulse Rate are
2
↑
or
to
ALERT
5693-90-01
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