B-2
Appendix B: Specifications
Operator's manual
DC Power Supply The ventilator can also operate from a 24 VDC power source (internal or external battery).
Internal Battery:
The Internal Battery requires a minimum charge time of 4 hours to achieve a full charge. Under normal operating conditions, the internal battery is capable of powering the ventilator alone for 1 hour and powering the ventilator and compressor for 30 minutes when fully charged. The ventilator should be connected to a main A/C supply and charged for at least 4 hours prior to switching to battery power.
External Battery: 22.0 to 26.4 VDC Under normal operating conditions, fully charged external and internal batteries combined are capable of powering the ventilator and compressor for a period of time equal to or greater than 2 hours and the ventilator alone for a period of time equal to or greater than 7 hours. With a discharged battery the ventilator should be connected to a main AC supply and charged for at least 12 hours to insure a full charge.
Data Input / Output Independent Lung Ventilation (ILV) The ventilator provides an output (master) and an input (slave) for synchronization of ventilators. The output supplies a 5 VDC logic signal synchronized to the breath phase of the master via a 25-pin connector on the rear of the ventilator. The pin configuration for this connector is as follows: PIN
FUNCTION
1
Analog Input Channel 0
14
Analog Input Channel 1
18
ILV In
6
ILV Out
20
Factory Use Only, DO NOT CONNECT
22
Analog Output, PRESSURE
23
Analog Output, FLOW
24
Analog Output, VOLUME
25
Analog Output, BREATH PHASE
5,9,10,11,12,13
Ground, Analog
Note: At least one analog ground is required for safe and accurate signal output and input.. One analog ground is sufficient for any and all of the other signals.
L2786