Mindray Passport 5-Lead, Service Manual

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Passport 5-Lead, 5L, LT, XG Service Manual 0070-00-0420 1 - 161
Operation (5-Lead, 5L, LT and XG) Operation (XG)
The following messages pertain to Masimo SpO
2
Operation.
• Administration of certain vasoconstrictive drugs, i.e., norepinephrine, may reduce
peripheral perfusion to a level that prevents SpO
2
measurements.
• Arterial compression, tricuspid regurgitation, or irregular heart rhythms may reduce
perfusion and prevent SpO
2
measurement.
• Intra-vascular dyes, depending on concentration, may affect SpO
2
measurements.
• SpO
2
measurements may be difficult on patients undergoing IABP treatments.
This monitor measures functional hemoglobin.
SpO
2
FAILURE ROM checksum fail. RAM test fail. Filter
mismatch. Offset mismatch.
Power cycle unit. If
message reappears, call
Service.
SpO
2
DIAGNOSTICS Passport is in Nellcor Diagnostics Mode. Wait for completion of
diagnostics.
MESSAGE REASON SOLUTION
SpO
2
SYSTEM
CHECK
Self test is being performed. Wait for completion of
self test.
SpO
2
NO SENSOR No sensor is connected to the monitor. Attach sensor cable to
the monitor.
SpO
2
PULSE
SEARCH
Hardware settings are being adjusted in order
to discriminate a pulse waveform.
Change to site where
pulse is stronger if
patient is
vasoconstricted.
Change or readjust
sensor if loose.
SpO
2
NO PULSE No detectable pulse is measured.
SpO
2
FAILURE ROM checksum fail. RAM test fail. Filter
mismatch. Offset mismatch.
Power cycle unit. If
message reappears, call
Service.
SpO
2
SENSOR OFF Sensor may not be connected to the patient. Check patient
connection.
SpO
2
INTERFERENCE
Noise detected on the pulse signal prevents
pulse discrimination.
Decrease patient
motion, check sensor.
SpO
2
CHECK
SENSOR
Insufficient light is received by the sensor
detector, or the sensor has a malfunction.
Check alignment of
emitter and detector or
change sensor.
SpO
2
LOW
PERFUSION
Poorly perfused patients may cause this
message.
Move sensor to another
monitoring site.
SpO
2
AMBIENT
LIGHT
There is too much ambient light. Cut down on ambient
light.
SpO
2
UNKNOWN
SENSOR
Sensor is not recognized. Use only Datascope
approved sensors.
MESSAGE REASON SOLUTION