GE 001C 051D 003A, Service Manual

Page: 42 / 282

Equipment overview: Theory of operation
2-22 Dash 3000/4000/5000 2000966-542D
Cardiac output
The cardiac output function measures blood temperature and injectate
temperature, and uses the thermal dilution method to calculate cardiac
output. Patient alarms with adjustable high and low limits for blood
temperature are provided. System alarms for sensor failure and unstable
blood temperature are provided.
The patient monitor accepts the brown color-coded connector (compatible
with the Eagle 4000 monitor and Tram modules).
The cardiac output connector and measurement circuits are shared with
the temperature monitoring function. You cannot use both functions
concurrently. A signal in the patient cable indicates the appropriate
function.
Carbon dioxide (CO
2
)
The CO
2
function measures inspired and expired CO
2
and respiration
rate using the infrared light absorption technique. The patient monitor
connects to an external CapnoFlex Low Flow Sidestream module or
Novametrix Capnostat III sensor that clips to an airway adapter in the
patient’s ventilation circuit. The circuits to drive the sensor and process
its incoming signal are located within the DAS.
Patient alarms with adjustable high and low limits for inspired CO
2
,
expired CO
2
, and respiration rate are provided. An additional patient
alarm for no breath detected is provided. System alarms for various
sensor conditions are provided.
The patient monitor accepts the yellow color-coded connector.