Mindray WATO EX-55, Руководство по обслуживанию

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4-37
O2 supply pressure is insufficient
(lower than 200 kPa). Change or connect the gas supply
and make sure that O2 supply
pressure is sufficient.
21% O2 calibration is not completed
before 100% O2 calibration. Perform 21% O2 calibration
followed by 100% O2 calibration.
Calibration failure is
prompted about 3
minutes after
calibration is
started. O2% count value is not within the
normal range (450 to 2700). Select the
[
Maintenance
] shortcut key →
[
Factory Maintenance >>
] →
[
Diagnostic Test >>
] → [
Display A/D
Channels
] → [
Ventilator >>
] to
access the [
Display A/D Channels
—
Ventilator
] menu.
Replace the O2 sensor.
4.3.8 CO2 Calibration (factory)
4.3.8.1 Preparations
Prepare the following before doing the calibration:
„ Gas cylinder: one or more cylinders filled with 3% , 4%, 5%, 6% , or 7% CO
2
„ T-shape connector
„ Samping line
4.3.8.2 Calibration Procedures
NOTE
z
During the calibration, selecting [Calibrate] again does not take effect or exit the
calibration menu. Other operations than menu options are disabled until the end of
calibration.
Calibrate as follows:
1. Make sure that the CO2 module is already warmed up.
2. Select the [
Maintenance
] shortcut key → [
Factory Maintenance >>
] → enter the
required password → [
Module Cal. >>
] → [
Gas Module Cal. >>
] → [
CO2 Module
Cal.
].
3. Check the airway and make sure that there are no occlusions or leaks.
‹
Vent the sampling line to the air and check that the current rate is approximately
150 mL/min.If the deviation is great, it means that the airway is occluded. Check
the airway for occlusions.