Newport HT50 - Exhalation Valve Calibration; Operational Set-Up (Standard Test Settings)

SECTION 5
SERHT50NA A0808 5-7
1. Connect the HT50 patient breathing circuit to the v
entilator.
Connect an adult test lung with restrictor or use test lung
(LNG800P) or occlude the patient side of the exhalation valve.
2. Press the On/Standby button once to enter Settings condition.
3. Press the Manual Inflation button once, then again within
three seconds.
4. The HT50 will start the exhalation valve calibration and the
ventilator will automatically test the exhalation valve. If it
passes the test, the messages "Cal Completed", then "Press
ON to Vent" will be displayed.
5. If the test fails, the message "Cal Failed" will be displayed.
• Press the Silence/Reset button.
• Check the integrity of the circuit, connections and test
lung, then press the Manual Inflation button twice to
initiate calibration again.
OPERATIONAL SET-UP
1. Connect the 500 cc test lung to the patient connection on the
exhalation valve.
2. If testing model HT50-H (w/ humidifier), the humidifier should no
longer be bypassed. The patient circuit should be connected to
the output of the humidifier chamber and the humidifier tubing
should be connected between the input to the humidifier
chamber and the connector on the ventilator labeled “GAS
OUTPUT.”
3. With the ventilator in the Standby condition, press the
On/Standby button once to enter Setting condition. Adjust
controls to the following Standard Test Settings:
MODE
A/CMV
Volume Control 500 mL
t
I
1.0 sec
ƒ 15 b/min
P trig 1 cmH
2
O/mbar
Paw alarm 3 cmH
2
O/mbar ▼Paw /
99 cmH
2
O/mbar ▲
_
Paw
V
•
I
alarm 1 L/min min ▼ / 50 L/min max ▲
_
PEEP/CPAP 0 cmH
2
O/mbar
P support 0 cmH
2
O/mbar
Humidifier Off