VM15 User Manual Printing (Option)
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SET O2 Function
SET O2: 0~30%, 30~70%, 70~100%
SET N2O Function
SET N2O: 0~30%, 30~70%
ZERO CAL FUNCTION
Warning: Incorrect probe Zeroing will result in false gas readings
In order to secure high precision of the 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, and then using 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% O2 and 0% CO2) in the IRMA airway
adapter is of crucial importance for a successful Zeroing. If a “ZERO_REQ” alarm should
appear directly after a Zeroing procedure, the procedure has to be repeated.
Always perform a pre-use check after Zeroing the probe.
IRMA CO2 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 warm up of the IRMA CO2 probe after power on and after changing
the IRMA airway adapter before proceeding with the Zeroing Procedure. The green LED on
the probe will be blinking for approximately 5 seconds while zeroing is in progress.
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 message is displayed.
Allow 30 seconds for warm up of the IRMA AX+ probes after power on and after changing
the IRMA airway adapter before proceeding with the Zeroing Procedure. The green LED on
the probe will be blinking for approximately 5 seconds while zeroing is in progress.
ALARM FUNCTION
6 Kinds of Alarms: GAS1, GAS2, CO2, O2, N2O, RR, TYPE
Setting Range(GAS1, GAS2, CO2)
⚫ High Range: 0~25 vol%, OFF
⚫ Low Range: OFF, 0~25 vol%
Setting Range(O2, N2O)
⚫ High Range: 0~100 vol%, OFF
⚫ Low Range: OFF, 0~100 vol%