4-37
4. The second column is the zero point of the current sensor and the third column is the
zero point in case of factory calibration.
The following table lists the normal range of the zero point of A7 pressure and flow
sensors.
Sensor
Normal Range of Zero Point (AD
Counts)
PAW sensor
7432 ~ 16206
PEEP pressure sensor
7432 ~ 16206
Inspiratory flow sensor
554 ~ 26457
Expiratory flow sensor
1392-19306
Internal flow sensor
1699-16768
The zero point A/D value of the PAW sensor and PEEP pressure sensor should fall
within the normal range of 7432 to 16206.
The zero point A/D value of the inspiratory flow sensor and expiratory flow sensor
should fall within the normal range of 554 to 26457.
The zero point A/D value of the internal flow sensor should fall within the normal range
of 1699 to 16768.
If there is a great deviation between the current zero point and the factory calibration
zero point, it indicates that the sensor is aging but it does not mean that normal
measurement cannot be performed.
If the current zero point exceeds the specified normal range, normal measurement is
affected and you need to calibrate the zero point again. If the zero point of the flow
sensor is not within normal range, replace the VCM.
NOTE
If the zero point of the pressure sensor is inaccurate in case of ventilation, the
baseline of the PAW waveform is not at the zero point and a great deviation exists
between pressure control and measurement.
If the zero point of the inspiratory/expiratory sensor is inaccurate in case of
ventilation, the baseline of the PAW waveform is not at the zero point and a great
deviation exists between TV control and measurement.
If the zero point A/D value of any sensor runs out of the normal range, it cannot be
corrected. Instead, the ventilator control board must be replaced.
4.14.2 Constant Flow Test (Checking the Flow Sensor
Accuracy)
NOTE
If a great deviation occurs on the measured Vt value, test the measurement
accuracy of flow sensors so as to determine whether another flow calibration is
necessary.
You can use any flowmeter with an accuracy of at least
±
2% for the accuracy
measurement of the flow sensors.
Содержание WATO EX-55Pro
Страница 1: ...WATO EX 55Pro 65Pro Anesthesia Machine Service Manual ...
Страница 2: ......
Страница 34: ...2 20 South African standard ...
Страница 48: ...2 34 VPM ...
Страница 139: ...4 39 b Gas Settings Press the Setup button select Setting ENTER Gas Settings MODIFY Gas Type O2 c Select BACK BACK BACK ...
Страница 142: ...4 42 ...
Страница 144: ...4 44 b Gas Settings Press the Setup button select Setting ENTER Gas Settings MODIFY Gas Type O2 c Select BACK BACK BACK ...
Страница 196: ...6 26 FOR YOUR NOTES ...
Страница 213: ...7 17 2 Zero the sensor without connecting any tubes 3 User Setup Gas Type O2 4 User Setup Measure Mode BTPS ...
Страница 288: ...8 34 Test fixture of the vaporizer support Anesthesia machine calibration device 1 MPa 10 bar test pressure gauge ...
Страница 356: ...8 102 FOR YOUR NOTES ...
Страница 396: ...9 40 2 Remove the two ends of the breathing tubes from the inspiration expiration connectors on the breathing system ...
Страница 438: ...9 82 FOR YOUR NOTES ...
Страница 440: ...10 2 10 3 Diagrams and Tables 24 17 16 7 6 5 3 2 18 20 25 1 4 23 21 22 15 14 13 12 11 10 9 8 26 19 ...
Страница 447: ...10 9 10 3 2 Hardware Box 2 4 3 5 7 8 6 12 9 10 13 14 15 1 11 ...
Страница 449: ...10 11 ...
Страница 455: ...10 17 10 3 5 WATO EX 55 Pro 65 Pro Cart Assembly ...
Страница 457: ...10 19 10 3 6 WATO EX 55 Pro 65 Pro Pre pak Circuit Bracket Assembly ...
Страница 462: ...10 24 4 3 1 2 ...
Страница 473: ......
Страница 474: ...PN 046 009688 00 4 0 ...