Service manual

Radical Signal Extraction Pulse Oximeter Service Manual
UM-10026 – 1204
4-1
4. Performance Verification
4.1. Overview
4.1.1. To test the performance of the Rad-5 pulse oximeter following
repairs or during routine maintenance, follow the procedure
outlined in this section. If the Rad-5 fails any of the described
tests, discontinue its use and correct the problem before
returning the unit back to the user.
4.1.2. Before performing the following tests be sure to have fully
charged batteries installed. Disconnect any patient cables or
pulse oximetry probes
4.2. Power-On Self-Test
4.2.1. Depress the Power/Standby button and verify the unit turns on.
Depress the button again and verify the unit turns off.
4.2.2. Turn the unit on by depressing the Power/Standby button.
Verify all indicators illuminate and speaker sounds a brief tone.
4.3. Key Press Button Test
4.3.1. With the unit on and with the exception of the Power/Standby
button, press each soft key button and verify that the Rad-5
acknowledges each key-press with an audible beep tone or by
indicating an associated change on the display.
4.4. Alarm Limit Test (Rad-5 only)
4.4.1. With the unit turned on, select the MODE-ENTER button.
Scroll through the limits by depressing the NEXT button. At
each parameter, use the up and down arrow keys and verify
the limits change accordingly. The limits will remain set until
the unit is cycled off and on at which time the original settings
will be restored.
4.4.2. Reset the alarm limits.
4.5. Display Contrast Test
4.5.1. With the unit turned on, depress the MODE-ENTER button (3)
three times. When the display appears as 888, use the up and
down arrows to verify the contrast both brightens and dims
accordingly.
4.5.2. Return the Contrast setting to the original value, or a value that
allows maximum viewing contrast.