Flow specifications
O2 Flush
Flush flow
25 to 75 l/min
Fresh gas
O2
0, 0.1 to 15.0 l/min
Air
0, 0.1 to 15.0 l/min
N2O
0, 0.1 to 10.0 l/min
Total flow tube
1 to 10 l/min
O2, Air, and N2O
resolution
0.1 l/min
Measurement
accuracy
O2, Air, and N2O: +/- 25 ml/min or +/- 6% of
measured value (whichever is larger) at 20 - 25 °C
with gas supply pressures at 480.5 kPa (69.7 psi)
Total flow tube: +/- 5% full scale (accurate with 100%
O2 into ambient pressure at 25 °C)
To reduce the risk of hypoxic gas mixtures at very low gas flows, the
O2 fresh gas flow does not go to zero. When O2 flow is displayed as
0 lpm, there may a residual O2 flow of 25 to 125 ml per min.
Different breathing circuit pressures, barometric pressures, or
temperatures change the total flow tube accuracy. During some
conditions, these changes can be larger than specified tolerances.
In the unlikely case of power failure (mains and backup battery) while
the machine is in use, oxygen will continue to flow. The total flow
tube will indicate the total flow of oxygen to the vaporizer and patient
circuit. Manual ventilation is available to complete the case.
When O2, Air or N2O flow is greater than 15 lpm, the display screen
only shows >15 lpm.
Note
Note
Note
Note
11 Specifications and theory of operation
2076152-001
11-11
Summary of Contents for Carestation 620
Page 1: ...Carestation 620 650 650c A1 User s Reference Manual Software Revision 01...
Page 12: ...Carestation 620 650 650c A1 x 2076152 001...
Page 58: ...2 24 2076152 001...
Page 98: ...3 40 2076152 001...
Page 102: ...4 4 2076152 001...
Page 128: ...6 12 2076152 001...
Page 150: ...7 22 2076152 001...
Page 182: ...8 32 2076152 001...
Page 196: ...9 14 2076152 001...
Page 246: ...11 44 2076152 001...
Page 268: ...Carestation 620 650 650c A1 User s Reference Manual English 2076152 001 2021 05 Rev S...