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2. Place an SaO sensor on your finger.
Shortly after the sensor is placed on a finger the SaOz value is displayed on the LED's
along with the pulse rate. The LED's are updated as the values change.
3. Press the HOLD key to end the test. The SaO2 Diagnostic Menu will display on the
LCD panel.
B. SENSOR TEST
The purpose of this test is to verify that the Digisensor in use will work with the entire
range of patients it was designed for. During this test both the red and infrared LED's
are analyzed. The true LED cur-
rents are measured by the light de-
tector which provides for the evalu-
ation of the LED output levels. The
RED
IR
5602
PULSE
number corresponding to the weak-
(uA)
(uA)
(%)
(bpm)
est sensor that works with the total
patient population is 70uA.
SENSOR TEST:
1. Select SENSOR TEST from the
REMOVE SENSOR FROM FINGER
SaO Diagnostic Menu. A set of in-
structions is displayed on the LCD
FACE EMITTER TO DETECTOR
panel as shown in figure 4-4.
2. lf the sensor is on your finger, re-
PRESS HOLD TO STOP TEST
move it.
，
i
FIGURE 4-4
3. Face the emitter to the detector.
SENSOR
TEST
Shorily after the test is started the
red and infrared readings are displayed on the LED's. These values are continuously
updated whenever they change. These values should be equal to or exceed 70uA.
. 4, Press the HOLD key to end the test. The SaO? Diagnostic Menu will display on the
LCD panel.
]
C. DAC 12 TEST
_
The purpose of this test is to verify the performance of the Analog Board DAC. An os-
cilloscope is used to measure this waveform at J24, Pin 5, GND on Pin 6. The output
waveform should be observed for linearity and lack of hysteresis
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