Newport HT50 Operator's Manual

FRONT PANEL OVERVIEW
Turning the HT50 On and Off
Changing the MODE Control
SECTION 3
The following is an overview of the HT50 front panel button
functions. For an indepth description, please review FRONT
PANEL CONTROLS AND INDICATORS.
The On/Standby button toggles between the following conditions:
Standby � Setting � On ��Standby
Press On/Standby button once to go from Standby to Setting.
Press again to turn On. Press twice to go from On to Standby.
Standby: HT50 dormant.
Setting: Enables setting of control parameters and exhalation
valve calibration.
On: Enables ventilation
NOTE: There is approximately a two second delay in going from
Standby to Setting condition. During this time, the HT50 performs
a self test and will light all displays on the front panel.
The MODE control buttons ( A/CMV / SIMV / SPONT ) function
differently in Setting and On conditions.
Setting Condition Press the A/CMV, SIMV or SPONT button. The LED on the
selected Mode will light green to confirm the selection.
On Condition Press the A/CMV, SIMV or SPONT button. The LED on the
selected Mode will blink green and the Message Display Window
will read “PRESS AGAIN.” Press the button again within 5
seconds to confirm the mode change, or the previously selected
mode will continue.
Changing between Pressure Control and Volume Control
The Pressure Control and Volume Control buttons function
differently when in A/CMV or SIMV in On condition compared to
when in SPONT mode in On condition or Settings condition.
On Condition: A/CMV or SIMV Select—Adjust (▲Up / ▼Down)—Accept
Select the Pressure Control or Volume Control button. Both the
LED indicator and the target value will blink.
Adjust the blinking target value for the selected control with the
▲Up / ▼Down buttons.
To Accept the new control and target value you must press the
desired control button (Volume or Pressure) a second time.
OPRHT50NA B0908 3-1