Heyer Pasithec - IRMA Probe Zeroing Procedure

H E Y E R P a s i t h e c
100 / 106 HEYER Pasithec, Operator’s manual Rev. 0.2 Draft - 12/09
10.10.3.2 Placement of IRMA Probe
When connecting IRMA probe to an infant patient circuit, avoid direct contact between the IRMA probe
and the patient’s body.
If the IRMA probe comes into direct contact with any parts of the infant’s body, an insulation material
shall be placed between the IRMA probe and the body.
WARNING: The IRMA probe is not intended to come into long-term skin contact.
10.10.3.3 Pre-use Check
Always verify gas readings and waveforms on the monitor before connecting the airway adapter to the
patient circuit.
Perform the tightness check of the patient circuit with the IRMA probe snapped on the IRMA airway
adapter.
10.10.4 Zeroing Procedure
WARNING: Incorrect probe Zeroing will result in false gas readings.
In order to secure high precision IRMA probe measurements, the following
zeroing recommendations should be followed.
Zeroing is performed by snapping a new IRMA airway adapter onto the IRMA probe without
connecting the airway adapter to the patient circuit. Use the host instrument to transmit a Zero
reference command to the IRMA probe.
Special care should be taken to avoid breathing near the airway adapter before or during the Zeroing
procedure. The presence of ambient air (21% O
2
and 0% CO
2
) in the IRMA airway adapter is of crucial
importance for a successful Zeroing. If a “ZERO-REQ” alarm appears after a Zeroing procedure, the
procedure has to be repeated.
Always perform a pre-use check after Zeroing the probe.
IRMA CO
2
probes:
Zeroing needs to be performed ONLY when an offset in gas values is observed, or when an
unspecified accuracy message is displayed.
Allow 10 seconds for the IRMA CO
2
probes to warm up after powering on the machine before
proceeding with the Zeroing Procedure.
Allow the IRMA probe to warm up for at least 10 seconds after changing the IRMA airway adapter
before transmitting the Zero reference command.
IRMA AX+ probes:
Zeroing should be performed every time the IRMA airway adapter is replaced, or whenever an offset
in gas values or an unspecified gas accuracy messages is displayed.
Allow 1 minute for warm up of the IRMA AX+ probes after powering on the machine and after
changing the IRMA airway adapter before proceeding with the Zeroing. The green LED on the probe
will blink for approximately 5 seconds while Zeroing is in progress.