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A minus sign (-) appears in the left-most digit of the %SpO
removed. The last measured SpO
off. The device will 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.
If the 9550 does not turn on or if it shuts off unexpectedly:
• Verify batteries are correctly inserted. Note: If batteries are installed backwards, the unit will not function.
• The batteries are depleted. Replace batteries.
If the problem persists, remove the batteries and contact Nonin Technical Service.
The Oxitest
Using the Lanyard and Carrying Case
WARNING: Certain activities my pose a risk of injury, including strangulation, if lanyard should become
wrapped around your neck.
!
A lanyard and carrying case are provided for convenience. The device will function with or without the lanyard.
If lanyard use is desired, thread the lanyard as shown below.
Onyx II 9550 Care, Maintenance, and Cleaning
The advanced digital circuitry within the device requires no calibration or periodic maintenance other than battery
replacement. The device's expected service life is 5 years. Field repair of the 9550 circuitry is not possible. Do not
attempt to open the case or repair the electronics. Opening the case will damage the device and void the warranty.
Do not open the 9550 more than 90°, and do not twist or pull on the device when cleaning.
Cleaning the Onyx II 9550
CAUTIONS:
!
• Clean the device before applying it to a patient.
• Do not sterilize, autoclave, or immerse this device in liquid. Do not pour or spray any liquids into the device.
• Do not use caustic or abrasive cleaning agents, or any cleaning agent containing ammonium chloride.
1. To clean, wipe the surfaces with a soft cloth dampened with a 10% bleach solution (household bleach [5.25%
sodium hypochlorite]). Do not use undiluted bleach or any cleaning solution other than those recommended here,
as permanent damage could result.
2. Dry with a soft cloth, or allow to air dry. Ensure that all surfaces are completely dry.
and pulse rate values display for 10 seconds while the device automatically turns
2
Plus7
by Datrend Systems, Inc. can be used to verify operation of the pulse oximeter.
CAUTION: A flexible circuit connects the two halves. Do not twist or pull the flexible circuit or
overextend the device's spring. Do not hang the lanyard from the device's flexible circuit.
display when the device senses the finger has been
2
4
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