GE HEALTHCARE E-PRESTN, Technical Manual

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Single-width Airway Module, E-miniC
10 - 17
2062973-004
5. Adjust the sample flow close to the nominal value 150 ml/min by using the Sample Flow
Gain up-down spinner controls:
•
To decrease the sample flow rate measured by the flow meter by approximately 7,5
ml / min, add gain value by 0.05.
•
To increase the sample flow rate measured by the flow meter by approximately 7,5
ml / min, lower the gain value by 0.05.
6. Press Confirm to check the effect of the gain adjustment. Wait until the sample flow value
shown in the calibration menu returns near to the nominal value 150 ml/min and then
check the actual measured flow rate from the flow meter.
7. Repeat steps 5 and 6 until the flow meter shows a 150 ± 25 ml /min flow rate.
8. Select Stop Sample Flow Adjustment to save the new gain value to the permanent
memory of the module.
NOTE: Adjust the flow rate according to the reading in the flow meter. The flow rate reading in
the calibration menu is measured by the internal electronics and settles always back to the
nominal 150 ml /min independent on the real flow rate.
4.2 Gas calibration
Gas calibration shall be performed:
•
each time planned maintenance is performed
•
corrective maintenance is performed.