906-0330-01-01 Rev. D
ZOLL 330 Multifunction Aspirator Operator’s Guide
C-1
Appendix C
Silent/Dark Mode
Operation
Silent/Dark Mode is a feature available with the ZOLL Model 330 Multifunction Aspirator.
Under normal conditions, the aspirator’s audible and visual alarms alert the operator to
potential problems with the patient or ventilator. There are, however, situations where the
audible and visual alarms could present a hazard to both the patient and operator by alerting
others to their presence. In Silent/Dark mode, the aspirator:
•
Suppresses the audible alarm.
•
Suppresses the back lights for the LCD display and the
Confirm
and
Mute/Cancel
buttons.
•
Emits only infrared light for the alarm LED indicator.
When operating in this mode, the LCD remains viewable by transflecting visible light or with
night vision goggles (NVG) equipment under dark conditions. The NVG equipment used in this
mode of operation must be capable of detecting infrared light in order to enable the operator to
detect alarm conditions.
Warning!
Never use Silent/Dark mode without the appropriate NVG equipment and always
ensure that the NVG equipment is capable of detecting the infrared light prior to
commencing operation
