III.
S P E C I F I C A T I O N S , C O N N E C T I O N S A N D U S E R I N T E R F A C E - C O N T .
13
WARNING: TO OBTAIN THE FULL 3 MINUTE DURATION OF THE
POWER FAILURE ALARM, THE CROSSVENT MUST HAVE BEEN
POWERED ON FOR AT LEAST 1 MINUTE.
This power failure circuit monitors the power to the main circuit board. If power is lost, either as a result of turning the
main power switch off or a total power failure to the circuit board, i.e., no external power and no battery, it sounds an
audible alarm (long tone) and flashes the LED which will continue for 3 min. after failure. This may be less if the unit has
been on for less than 1 minute. Pressing the Alarm reset switch permanently silences the audible alarm.
2- REAR OF VENTILATOR
CAUTION:
Antistatic or electrically conductive hoses or
tubing should not be used.
G A S S U P P L Y I N L E T
Male DISS 9/16-18 fitting. Connect this to the gas supply source of the isolette.
The supply should be 17 psi to 55 psi (117 kPa to 380 kPa).
E X T E R N A L E L E C T R I C A L S U P P L Y C O N N E C T O R
This receptacle accepts the plug from the factory supplied, U.L. approved, wall plug-in power supply module which by
necessity meets all the specifications and standards listed in Section III, Part B. Use only Jerome Industries model
WSZ116M (16VDC, 3A) with the appropriate mating plug. This plug is keyed and the alignment dots on both connectors
must be aligned before engaging. The Crossvent should not be used with any other wall plug-in or desktop AC adapter.
This is used to operate the ventilator and to charge the battery whenever it is below full charge. The wall plug-in power
supply is furnished for 117 VAC, 60 Hz or 220 VAC, 50 Hz operation, as required. It is not possible to overcharge the
battery. Always keep the battery fully charged when not in use.
CAUTION:
Do NOT attempt to rotate the power connector while it is plugged into the
ventilator. It must only be pushed straight in and pulled straight out.
CAUTION:
When using an AC power source, only the power supply provided with the
Crossvent is approved for use with this ventilator. Any other power supply may cause
damage and/or unreliable operation.
CAUTION:
Any more comprehensive DC power supply than that which is supplied must
be short circuit protected and must comply with all of the specifications and standards as
listed in Section III, Part B.
CAUTION:
When it is necessary to operate the Crossvent from an AC inverter, only
inverters in compliance with NEMA standards should be used (see Appendix E).
B A T T E R Y
The battery is located internally and should only be accessed by trained service personnel. Always leave the unit plugged into
the wall source to keep the battery fully charged when not in use.
The NiMH rechargeable battery is located internally and should only be accessed by trained service personnel. Always leave
the unit plugged into the wall source to keep the battery fully charged when not in use. The battery operation is
approximately 2 ¾ hours on a fully charged battery. This can be extended by turning off the backlight (refer to Backlight in
Part D of this section).
To charge the battery, only the power supply provided by Bio-Med Devices should be used. With the dot on the supply’s
connector aligned with the dot on the panel, plug the external power supply into the Crossvent and into an AC outlet and
charge the battery until the battery gauge at the bottom of the display indicates a full charge. The battery bar indicating the
remaining battery power should span the entire battery key unless the battery was fully discharged, in which case it may
indicate something less than 100%. Continued charging will bring it to 100%. The amount of time required to fully charge
the battery depends on many factors, including the state of charge when it begins. The maximum time for an exhausted
battery is approximately 2 ½ hours. When done, verify battery power by unplugging the external power cord from the rear
of the unit while it is turned on. The Crossvent should alarm and the power source key at the bottom of the display should
flash “BATTERY”. Press this key to cancel this alarm.
The battery cannot accept a charge if the temperature is over 125°F (51°C) or below 32° (0
°)
. This situation should be
avoided. If the battery is above or below these temperatures during a rapid charge, it will go into trickle charge mode until it
is below this temperature.
When the state of the battery is determined to be within approximately 20 minutes of remaining autonomous operation, the
Alarm 3 menu will flash “LOW BATTERY, CONNECT EXTERNAL POWER” and sound the audible alarm. The
ventilator should be switched to external power or removed from service and recharged when this alarm occurs. If the
battery is allowed to expend energy to a point below 6 volts (well below the Low Battery alarm limit), the ventilator will shut
Содержание Crossvent-2i+
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Страница 82: ...IX P A R T S L I S T A N D S C H E M A T I C D I A G R A M S C O N T 77 MAIN COMPONENT LOCATIONS...
Страница 83: ...IX P A R T S L I S T A N D S C H E M A T I C D I A G R A M S C O N T 78 SOLENOID COMPONENT LOCATIONS...
Страница 84: ...IX P A R T S L I S T A N D S C H E M A T I C D I A G R A M S C O N T 79 RS232 CONNECTOR PCB...