Novametrix Medical Systems OXYPLETH 520A, Руководство по обслуживанию

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5-Jun-01 Model 520A Service Manual
55
PRELIMINARY
13
Accuracy Test
Introduction
13.1
The Accuracy Test verifies the performance accuracy of the Model 520A Pulse
Oximeter monitor. If the monitor does not pass the accuracy test, the monitor should
be recalibrated. Refer to Section 14,
Calibration Tests , on page 59, or contact the
Novametrix Service Department for repair/replacement assistance.
The test requires the use of the Model TB500B Sensor Simulator.
1
This is the same
device used by the factory technicians to calibrate the monitor prior to shipping. The
TB500B is an updated version of the TB500A Test Box. Owners of TB500A should
contact the Novametrix Service Department for details on upgrading to the
TB500B. Note that the TB500A, used in conjunction with the Cat. No. 5453-00
Adapter Cable, may be substituted for the TB500B in most parts of this test.
Monitor Accuracy Test
13.2
13.2.1
Equipment Required:
Model 520A to be tested
AC Mains Line Cord (supplied with monitor)
TB500B Sensor Simulator (Cat. No. 5530-00)
13.2.2
Press and release the front panel
POWER
key. The monitor will;
• Briefly illuminate all displays and indicators
2
• Produce an audible “beep” indicating the audio is operational
• Briefly display
MONITOR PERFORMING SELF TEST.
3
• Display the Message Center flashes
ERASE STORED TRENDS?
for ten
seconds then displays
CONNECT SPO2 PROBE
while no sensor is con-
nected to the monitor.
13.2.3
Press the
Menu
key and then press
AVG
.
The
SELECT SPO2 AVERAGING
menu should be displayed. Press
2s
and
then press
RUN
to return to the Main Menu. This sets the SpO
2
averaging
to 2-seconds for the quickest response to changing TB500B settings.
1. Available through the Novametrix Service Department.
2. The AC indicator will illuminate only when the monitor is connected to line power and the rear
panel Power switch is On (|).
3. If “Monitor Error” appears, turn the monitor off and back on. If the message reappears, contact
qualified service personnel. Refer to Section 11,
Troubleshooting
, on page 47.