7-39
7.3.4 Pressure and Flow Zeroing (Service)
7.3.4.1 Zeroing Mechanisms
The anesthesia machine automatically performs pressure and flow zeroing at regular intervals
during operation. You can also perform pressure and flow zeroing manually in the factory
maintenance menu. Manual zeroing can immediately eliminate measurement deviations caused by
zero offset of sensors. The anesthesia machine supports automatic and periodic pressure and flow
zeroing. The first four zeroing operations are done automatically 1, 5, 15, 30, and 60 minutes after
ventilation starts. Then automatic zeroing takes place every 60 minutes. The three-way valve is
opened and closed for valve flushing during mechanical ventilation and before automatic zeroing.
7.3.4.2 Zeroing Procedure
Zero the pressure and flow sensors as follows:
1. Select
[
Setting
] > [
Maintenance
] > [
Calibrate
] > [
Zero Sensor
] to go to the screen as
shown in the following figure:
Summary of Contents for WATO EX-55Pro
Page 1: ...WATO EX 55Pro 65Pro Anesthesia Machine Service Manual ...
Page 2: ......
Page 34: ...2 20 South African standard ...
Page 48: ...2 34 VPM ...
Page 142: ...4 42 ...
Page 196: ...6 26 FOR YOUR NOTES ...
Page 356: ...8 102 FOR YOUR NOTES ...
Page 438: ...9 82 FOR YOUR NOTES ...
Page 447: ...10 9 10 3 2 Hardware Box 2 4 3 5 7 8 6 12 9 10 13 14 15 1 11 ...
Page 449: ...10 11 ...
Page 455: ...10 17 10 3 5 WATO EX 55 Pro 65 Pro Cart Assembly ...
Page 457: ...10 19 10 3 6 WATO EX 55 Pro 65 Pro Pre pak Circuit Bracket Assembly ...
Page 462: ...10 24 4 3 1 2 ...
Page 473: ......
Page 474: ...PN 046 009688 00 4 0 ...