5. Normal Operation.
After warm-up, the humidifier will convert to normal operation. Figure 8 shows a typical
display for the ConchaTherm Neptune during normal operation.
Warning: Maintain adequate gas flow through the column and breathing circuit. This will
prevent overheating the column and circuit.
Warning: Do not leave the humidifier on, do not turn the humidifier on and do not exit
the pause mode until there is regulated gas flow through the system. To do so may
result in heat buildup, causing a bolus of hot air to be delivered to the patient. Circuit
tubing may significantly soften under these conditions
.
6. Pause Mode
To facilitate activities such as circuit changes and nebulizer treatments, the ConchaTherm
Neptune features a pause mode. During this period, humidifier settings are maintained and
automatically re-activated when the designated pause time ends.
To activate the PAUSE Mode, press and hold the pause button . The timer icon will
illuminate and the LED display will count down the remaining time in pause. The factory
default pause time is 30 minutes.
During pause mode:
• Power to the heater is reduced and the power to heated-wires is turned off.
• The humidifier will not allow adjustment of the mode, airway temperature,
temperature gradient or pause interval.
To exit PAUSE, press the flashing pause button or allow the pause time to expire. Both
exit methods will return the humidifier to warm-up and normal operation.
Warning: Do not exit the pause mode until there is regulated gas flow through the system.
To do so may result in heat buildup, causing a bolus of hot air to be delivered to the patient.
Circuit tubing may significantly soften under these conditions.
18
Figure 8: CONCHATHERM NEPTUNE - Normal Operation Using a
Dual Heated-Wire Circuit