CareFusion AVEA - Appendix H: Capnometry Troubleshooting; Capnometry Troubleshooting

AVEA ventilator systems 217
L2786 Rev. M
Appendix E: Sensor Specifications & Circuit Resistance
VarFlex
®
Sensor Specifications
Table E.1 Varflex Flow Sensor Specifications
Sensor
Infant 15 mm
Adult 15 mm
Part Number
7002500
7002300
Type
Single Use
Single Use
Circuit Location
Wye
Wye
Performance Specifications
Flow Range
0.024 to 30 L/min
1.2 to 180 L/min
Diff Pres Range
± 5.72 cmH
2
O
± 5.72 cmH
2
O
Accuracy*
± (0.012 L/min + 5% or reading
± (0.1 L/min + 5% or reading
Resistance 4.5 cmH
2
O @ 30 L/min 2.4 cmH
2
O @ 60 L/min
Dead Space 0.7 ml installed 9.6 ml installed
Freq. Response** 17 Hz 26 Hz
Airway Pres Range -140 to 140 cmH
2
O -140 to 140 cmH
2
O
Calibration (EEPROM) 29 Point Curve 29 Point Curve
Linearity < 1% between points < 1% between points
Operating Temperature 5° to 40° C
41° to 104° F
5° to 40° C
41° to 104° F
Physical Specifications
Sensor Length
1.36 in (3.5 cm)
2.45 in (6.2 cm)
Diameter Insp (Vent Side)
15 mm OD
15 mm OD
Diameter Exp (Patient)
15 mm OD
15 mm OD
Tube Length
48 in (121.9 cm)
73 in (185.4 cm)
Connector
Bicore Proprietary
Bicore Proprietary
Weight
22 g (0.7 oz)
31 g (1.0 oz)
Service Life
Single Patient Use
Single Patient Use
Sterilization
NA
NA
Material Sensor – Lexan
Flap – Mylar
Tubing – PVC
Connector - ABS
Sensor – Lexan
Flap – Mylar
Tubing – PVC
Connector - ABS
L/min: Dry air at 77° F (25° C) and 14.7 psig barometric pressure.
* Includes ± 1% for linearity and hysteresis with no zero drift for the pressure transducer and ± 2 % for temperature and
humidity variations.
The sensor must be corrected for barometric pressure, and oxygen concentration.
** Frequency Response is signal attenuation to 0.707 input and assumes 100 Hz sample rate.