76
Pre-use check
Always verify and check the gas readings and waveforms on the monitor before connecting the IRMA airway
adapter to the breathing circuit.
Perform the tightness check of the patient circuit with the IRMA probe snapped on the IRMA airway adapter.
Operating instruction
On MultiGas Setup screen, set the Switch to “ON” to start the PhaseIn MultiGas Analyzer.
2. LED status
3. Zero Procedure
Warning: Incorrect probe Zeroing will result in false gas reading.
In order to secure high precision of the IRMA probe measurement the following zeroing recommendations
should be followed:
1) Zeroing is performed by snapping a new IRMA airway adapter onto the IRMA probe, without connecting
the airway adapter tot the patient circuit, and then using the host instrument to transmit a Zero reference
command to the IRMA probe.
2) Special care should be taken to avoid breathing near the airway adapter before or during Zeroing proce-
dure. The presence of ambient air (21% O
2
and 0% CO
2
) in the IRMA airway adapter is of crucial impor-
tance for a successful Zeroing. If a “ZERO_REQ” alarm should be appear directly after a Zeroing procedure,
the procedure has to be repeated.
Caution: always perform a pre-use check after Zeroing the probe.
1) IRMA AX+ probe
Zeroing should performed every time the IRMA airway adapter is replaced, or whenever an offset in gas
values or an unspecified gas accuracy message is displayed.
2) Allow 30 seconds for warm up of the IRMA AX+ probe after power on and after changing the IRMA airway
adapter before proceeding with the Zeroing Procedure.
3) The green LED on the probe will be blinking for approximately 5 seconds while Zeroing is in progress.
4. Instruction for Safe Operation --- IRMA Mainstream
The IRMA probe is intended for use by authorized and trained medical personnel only.
The IRMA probe is intended only as an adjunct in patient assessment. It must be used in conjunction with
other assessments of clinical signs and symptoms.
The IRMA probe must not be used with flammable anesthetic agents.
Disposable IRMA airway adapter shall not be reused. Reuse of the single use adapter can cause cross
infection.
The used airway adapter shall be disposed of in accordance with local regulations for medical waste.
Do not use the IRMA Adult/Pediatric airway adapter with infants as the adapter adds 6ml dead space to the
patient circuit.
Do not use the IRMA Infant airway adapter with adult as this may cause excessive flow resistance.
Do not place the IRMA airway adapter between the endotracheal tube and an elbow as this may allow pa-
tient secretions to block the adapter windows and result in incorrect operation.
To keep secretions and moisture from pooling on the windows or oxygen sensor port, always position the
IRMA probe in a vertical position with the LED pointing upwards.
Color of LED
Information
Steady green light
System OK
Blinking green light
Zeroing in process
Steady blue light
Anesthetic agent present
Blinking red light
Check adapter
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