151
alarm messages are displayed: "CO
2
: PARAM OUT OF RANGE ", "CO
2
: OUT OF RANGE" or
“CO
2
: ZERO
REQUIRED".
After connecting the sensor or replacing the airway adapter, wait at least one minute before starting
the zeroing procedure to allow the sensor to warm up.
The green LED on the sensor will blink for 5 seconds while the reset process is in progress.
11.2.2 LED status information
Table 59 - IRMA CO
2
Status LEDs
Color (state)
Significance
Green (constantly on)
System OK
Green (blinking)
Zeroing in progress
Blue (constantly on)
Anesthetic agent present
Red (constantly on)
Sensor error
Red (blinking)
Check the adapter
11.3 Preventive maintenance
The calibration of the gas shall be checked at regular intervals by reference instrument.
11.4 Important Notices
•
The IRMA CO
2
sensor shall be operated exclusively by trained and authorized medical
personnel.
•
The sensor shall not be used with flammable anesthetic agents.
•
Airway adapters shall not be reused. Reusing a disposable adapter may cause cross-
infection.
•
Do not use the adult / pediatric airway adapter in neonates as the adapter adds a 6mL
dead space to the patient's breathing circuit.
•
Do not use the neonate airway adapter in adult patients as this adapter may add
excessive resistance.
•
Measurements may be affected by radio-frequency communication equipment or
cellular devices.
•
The user must make sure that the sensor is used in environments that comply with the
electromagnetic environment specifications stated in this manual.
•
Do not use the airway adapter with measured-dose inhalers or nebulized medications
as they may affect the transmission of light into the sensor windows.
