Operation Manual

Medical Test Supply www.medicaltestsupply.com
15
Measurement Limitations
During operation, the accuracy of oximeter readings can be affected by:
 High-frequency electrical noise, including noise created by the host system, or noise from
external sources, such as electrosurgical apparatus connected to the system.
 Intravascular dye injections.
 Excessive patient movement.
 External light radiation.
 Improper sensor installation or incorrect contact position of the patient.
 SpO
2
probe temperature (optimal temperature between 28°C and 40°C).
 Placement of the SpO
2
probe on an extremity that has a blood pressure cuff, arterial catheter,
or intravascular line.
 Significant concentrations of dysfunctional hemoglobin, such as carboxyhemoglobin and
methemoglobin.
 SpO
2
too low.
 Bad circular injection of the part being measured.
 It is required to use SpO
2
probe which is provided by our company, contact with our sale
department when changes SpO
2
probe.
Chapter15 Maintenance and Cleaning
Warning
Take cuff and the power source off before cleaning the unit or the SpO
2
probe.
Caution
 Do not subject the sensor to autoclaving.
 Do not immerse the SpO
2
probe into any liquid.
 Do not use any SpO
2
probe or cable that may be damaged or deteriorated.
Cleaning:
 Use a cotton ball or a soft mull moistened with hospital-grade ethanol to wipe the surface of
the SpO
2
probe, and then dry it with a cloth. This cleaning method can also be applied to the
luminotron and receiving unit.
 The cable can be cleaned with 3% hydrogen dioxide, 70% isopropanol, or other active
reagent. However, connector of the SpO
2
probe shall not be subjected to such solution.