ZOLL M Series Defibrillator Rev D ETCO2 - Manual (Page 8)

M S
ERIES
O
PERATOR
’
S
G
UIDE
- O
PTION
I
NSERT
EtCO
2
- 6
c. If the adapter is properly connected, and the
windows are clean and dry, then zero the adapter
as described in the next section, "Zeroing the
Mainstream Sensor/Airway Adapter".
3. Turn the Selector switch on the M Series unit to
MONITOR (ON for AED units).
4. Wait for the airway adapter and sensor to warm up.
The unit will display a “WARM UP” message for
approximately one minute while the sensor and
adapter warm to operating temperature. The
message disappears when the sensor is ready to
use.
Note Warm-up time varies with ambient temperature of
the sensor.
Zeroing the Mainstream Sensor/Airway Adapter
Adapter zeroing compensates for the optical differences
between airway adapters and should be performed after
switching between different airway adapter types, in
order to obtain accurate readings.
Zeroing is also necessary the first time a particular
CAPNOSTAT 3 sensor is connected to the unit.
The M Series unit retains the CAPNOSTAT 3 sensor's
zero settings during and after its use. When a previously
used sensor is reconnected to the M Series unit, sensor
zeroing does not need to be repeated, as long as no
other CAPNOSTAT 3 sensor or adapter type has been
connected and zeroed during the interim period.
1. Place the sensor with the adapter installed away from
all sources of CO
2
(including the patient's – and your
own – exhaled breath and ventilator exhaust valves).
2. Press the Param. softkey and select the EtCO2
menu item, then press Enter.
3. Press the Zero softkey until the Start menu item is
highlighted, then press Enter.
The unit zeroes the adapter and displays the
"ZEROING CO2 ADAPTER" message for
approximately 15 seconds.
The unit displays the message “ZERO DONE” upon
completion of the zeroing.
Note Do not attempt zeroing for 20 seconds after
removing the adapter from the patient’s airway.
This time allows any CO
2
remaining in the adapter
to dissipate before zeroing. Do not attempt to zero
the adapter while it is in the patient’s airway.
Zeroing with CO
2
in the adapter can lead to
inaccurate measurement and/or other error
conditions. If you attempt zeroing while CO
2
remains in the adapter, the time required to zero
the adapter may be increased. If zeroing cannot be
completed, the message “ZERO FAILED” will be
displayed. If this occurs, clear any occlusion in the
adapter, remove the source of CO
2
, wait 20
seconds, and try zeroing again.
Attaching the Airway Adapter to the Airway
Circuit
If you have not yet done so, you must attach the airway
adapter to the CAPNOSTAT 3 sensor before attaching
the airway adapter to the airway circuit. Refer to
"Attaching the Airway Adapter to the CAPNOSTAT 3
Sensor" on page 5 if necessary.
Attach the airway adapter to the airway circuit as follows:
1. Place the CAPNOSTAT 3/airway adapter assembly
at the proximal end of the airway circuit between the
elbow and the ventilator circuit wye. Do NOT place
the airway adapter between the ET tube and the
elbow, as this may allow patient secretions to
accumulate in the adapter.
Position the airway adapter with its windows in a
vertical, NOT a horizontal, position. This helps keep
patient secretions from pooling on the windows. If
pooling does occur, the airway adapter may be
removed from the circuit, rinsed with water and
reinserted into the circuit. To prevent moisture from
draining into the airway adapter, do NOT place the
airway adapter in a gravity dependent position. See
Figures 1 and 2.
#!0./34!4

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Figure 1