Service manual

Radical Signal Extraction Pulse Oximeter Service Manual
UM10029–0406
4-2
4. Performance verification
To test the performance of the Rad-8 pulse oximeter following
repairs or during routine maintenance, follow the procedure outlined
in this section. If the Rad-8 fails any of the described tests,
discontinue its use and correct the problem before returning the unit
back to the user.
4.1. Power-On Self-Test
4.1.1. With Rad-8 plugged into an AC power source and no cable or
sensor plugged into the instrument, turn the monitor on by
depressing the Power Button. For about 2 seconds all
available LEDs are illuminated and a brief beep tone sounds.
The unit will then cycle through Saturation and Pulse alarm
limits.
4.1.2. After this initialization “boot” cycle, the No Sensor, Alarm
Suspend and Normal Sensitivity Mode LED indicator’s will
light. Also, the %SpO2 and BPM monitoring display will
indicate “NO SEN”. The oximeter is ready to begin normal
operation.
4.1.3. Turn power off and then back on as many times as necessary
to verify this Power-On cycle.
4.2. Key Press Button Test
4.2.1. With the exception of the Power Button, press each button and
verify that the oximeter acknowledges each key-press with an
audible beep tone or by indicating a change on the display.
4.3. Serial Port Test
4.3.1. Using an IBM compatible computer, connect a straight through
serial cable from the serial connection on your computer to the
serial port on the rear of the Rad-8.
4.3.2. Initiate Hyper Terminal on your computer.
4.3.3. Setup Hyper Terminal using COM 1, then set Bits Per Second
to 9600, data bits 8, Parity NONE, Stop Bits 1, Flow Control
NONE.
4.3.4. From Setup Menu level 5 on the Rad-8, press the NEXT
button for Serial Out and use the up/down arrows to select
AS1(ASCII 1). Press “Mode/Enter” to start ASCII output.
4.3.5. Connect either a Masimo Tester or cable and sensor and verify
output of Date, Time, SPO2%, BPM, PI, ALARM and EXC.