Northern Meditec Crius V6, Руководство оператора

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time, the slower the monitor responds when the patient's SpO2 value changes, but the
measurement accuracy is higher. In monitoring critically ill patients, a smaller average time
is conducive to timely analysis of the disease.
The setting method follows:

Select [Avg.Time] to set the average time to [2s], [3s], [4s], [5s], [6s], [7s] or [8s].
8.6 Measuring Influencing Factors
During operation, the following factors can affect the accuracy of SpO2 measurement:

High-frequency radio wave interference, such as interference generated by the host
system or interference from electrosurgery instrument connected to the system.

Intravenous dye.

Too frequent movement of the patient.

External light radiation.

Sensor is improperly installed or improperly in contact with the patient.

Sensor temperature (optimum temperature 28°C~42°C).

The sensor is placed on limbs with blood pressure cuff, arterial duct or lumen tube.

Concentration of non-functional hemoglobin such as carboxyhemoglobin (COHb) and
methemoglobin (MetHb).

SpO2 too low.

Poor perfusion of test site.

Shock, anemia, hypothermia, and the application of vasoconstrictor drugs may reduce
the arterial blood flow to a level that can not be measured.

The measurement also depends on the absorption of specific wavelengths of light by
oxyhemoglobin and reduced hemoglobin. If there is any other substance that absorbs
the same wavelength, the measurement may have false or low SPO2 values, such as:
carbon hemoglobin, methemoglobin, methylene blue, and indigo carmine.

SPO2 probe described in Annex is recommended.

Operating environment limit: Operating temperature range: 5
～
40
℃
, Humidity range:
0~80% (non-condensing), Elevation range: -500m~5000m.
8.7 Alarm Setup
In [SpO2 Setup] menu, select [Alarm >>] to enter [Alarm Setup] interface, and set SPO2
alarm switch, alarm level, upper and lower alarm limit.