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Installing Batteries
Two 1.5 volt AAA-size batteries power the Onyx
recommends using alkaline batteries (included with each new Onyx
per second. Replace low batteries as soon as possible.
NOTES:
•
Remove batteries if device will be stored for more than 30 days.
•
Rechargeable batteries may be used; however, they require more frequent replacement.
1. Loosen the screw at the end of the Onyx
2. Remove the battery door and the old batteries, disposing of the batteries properly.
3. Insert two new 1.5 volt AAA-size batteries. Follow the polarity markings (+ and -) as illustrated. Proper positioning of the
batteries is essential for Onyx
4. Carefully reposition the battery door. Do not force it into place; it fits only when properly positioned.
5. Tighten the screw firmly, but do not overtighten. Insert your finger in the Onyx
Activating the Onyx
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The Onyx
contains numeric LEDs that display oxygen saturation and pulse rate. A tricolor LED display provides a visual
indication of the pulse signal quality, while blinking at the corresponding pulse rate. This display changes colors to alert you to
changes in pulse quality that may affect the readings: green indicates a good pulse signal, yellow indicates a marginal pulse
signal, and red indicates an inadequate pulse signal.
Activate the Onyx by inserting the patient's finger into the unit. The Onyx
illuminates the displays. Correct positioning of the Onyx
measurements. All emitted light must pass through the fingertip.
While on the finger, do not press the Onyx
provides the correct pressure; additional pressure may cause inaccurate readings.
1. Insert the patient's finger, nail side up, into the Onyx
2. Make sure the finger is lying flat (not on its side) and is centered within the Onyx
patient's heart or chest level.
SpO
®
3. If the Onyx
2
When a finger is inserted, the Onyx
the startup sequence. If any LED is not lit, do not use the Onyx
After the startup sequence, the Onyx begins sensing the pulse (indicated by the blinking pulse quality display). Allow the Onyx
to stabilize, observing about 10 seconds of continuous green-colored pulse quality before relying on the displayed values. It is
common for the displayed values to fluctuate slightly over a period of several seconds. If the pulse quality display blinks yellow
or red, try another finger.
A minus sign (-) appears in the left-most digit of the %SpO
The last measured SpO
automatically shut off (to conserve battery life) approximately 10 seconds after the finger is removed, or after a 2-minute period
of inadequate pulse signals.
Using the Lanyard
A lanyard is provided for convenience. The Onyx
1. If lanyard use is desired, thread the ends of the lanyard through the lanyard holes as shown at left.
2. Push in the lanyard lock button. Slide the lock onto the lanyard to the desired length.
3. Release the lock button to secure its position.
4. Reverse this procedure to remove the lanyard.
Note: The lanyard must cross over the top of the Onyx
®
Onyx
Care, Maintenance, and Cleaning
The advanced digital circuitry within the Onyx
Field repair of the Onyx
case will damage the Onyx
Disengaging and Removing the Spring
1. Turn the Onyx
2. Disengage the spring by gently pulling it up and lifting it out of the retaining groove. Next, rotate the spring forward (as
indicated by the dashed arrow), bringing it past the finger cavity.
3. (When replacing spring): Remove the spring by carefully pulling the ends from the pivot holes on either side.
Replacing the Spring
1. Insert the ends of the new spring into the pivot holes on both sides of the Onyx
indicated in the illustration.
2. Rotate the spring up and past the finger cavity (as indicated by the dashed arrow).
3. Seat the spring into the retaining groove.
Cleaning the Onyx
1. Disengage the spring. (See "Disengaging and Removing the Spring.") It is unnecessary to remove the spring.
2. Wipe surfaces with a soft cloth dampened with a mild detergent, isopropyl alcohol solution or 10% bleach/water solution.
3. Dry with a soft cloth, or allow to air dry.
Caution
!
Do not use caustic or abrasive cleaning agents.
4. Ensure that all surfaces are completely dry, and re-engage the spring. (See "Replacing the Spring.")
®
for about 1,600 spot checks or 18 hours of continuous operation. NONIN
®
using a coin or a standard flat screwdriver.
®
operation.
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and Verifying Operation
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against any surface and do not squeeze or hold it together. The external spring
does not turn on, remove the finger and wait a few seconds before reinserting it.
®
performs a brief startup sequence. Verify that all LEDs illuminate during the first phase of
and pulse rate values freeze for 10 seconds, and then the displays go blank. The Onyx
2
®
®
requires no calibration or periodic maintenance other than battery replacement.
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circuitry is not possible. Do not attempt to open the Onyx
®
and void the warranty.
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over with the back cover facing up.
®
's Inner Surfaces
®
). When batteries are low, the numeric displays flash once
®
to verify operation.
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detects the inserted finger and automatically
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's light emitter and photodetector on the finger is critical for accurate
®
until the fingertip touches the built-in stop guide.
®
®
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; contact NONIN
Customer Support for repair or replacement.
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display when the Onyx
senses that the finger has been removed.
2
will function with or without the lanyard.
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(as illustrated) to permit full opening of the device.
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case or repair the electronics. Opening the
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. Make sure that the spring is positioned as
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. For best results, keep the Onyx
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will
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at the
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