Mindray A5 Operating Instructions

A5/A3™ Operating Instructions 046-003777-00 7 - 7
Maintenance O
2
Sensor Calibration
7.6.1 Calibrate the O
2
Sensor
21 % O
2
sensor calibration can be performed in all ventilation modes when calibrating from the
Setup > General tab. When calibrating from the Setup > System tab, the A5/A3 must be placed
in Standby mode and a system password is required. See ‘‘System Tab’’ on page 3-38 for
password information.
NOTE: The breathing system automatically seals off the O
2
sensor port when
the O
2
sensor is removed.
1. Set the A5/A3 to Standby mode:
a. Set the Auto/Manual ventilation switch to Manual.
b. Turn off all fresh gas flows by turning their knobs clockwise. Wait until all fresh gas flow
levels are effectively at 0.0 L/min (i.e., flow < 0.05 L/min).
c. Select the End Case button in the Manual tab.
NOTE: The A5/A3 system will not allow the End Case button to be selected
until the Auto/Manual ventilation switch is set to Manual, and system
detects the individual fresh gas flows are effectively turned off (i.e.,
flow < 0.05 L/min).
d. Follow the screen prompts to end the case and enter Standby mode.
2. Select Setup > General > Calibrate O
2
Sensor.
Only 21 % O
2
sensor calibration is available in the General tab,
or
Select Setup > System (system password needed) > Calibration > O
2
Sensor.
Both 21 % and 100 % O
2
sensor calibrations are available in the System tab.
The 21 % button is highlighted by default.
NOTE: In the System tab, 21 % oxygen sensor calibration must be completed
before performing 100 % calibration. The 100 % button is disabled if a
21 % oxygen sensor calibration has not been successfully completed
within 72 hours.
3. Remove the O
2
sensor from the O
2
sensor port on the breathing system.
Allow three (3) minutes for the sensor to acclimate to the environment.
4. Carefully follow the on-screen prompts to prepare for calibration.
5. Select the Begin button to start 21 % O
2
sensor calibration. The system will indicate the
calibration status when the process is completed.
6. When 21 % O
2
sensor calibration is successfully completed, reinstall the O
2
sensor into the
O
2
sensor port on the breathing system. If an error code in red (e.g., 00 00 00 10) is displayed,
see TABLE7-2, “O
2
Sensor Calibration Error Codes,” on page7-8 for troubleshooting
information.
7. If you are in the Setup > General, select Done when 21 % O
2
sensor calibration is
completed. Skip the remaining steps below.
or
If you are in the Setup > System and wish to skip 100 % O
2
sensor calibration, select Done
to close the calibration window. Skip the remaining steps below.
8. Select the 100 % button to perform 100 % O
2
sensor calibration.
9. Carefully follow the on-screen prompts to prepare for calibration.

Mindray A5 Specifications

General

Brand	Mindray
Model	A5
Category	Medical Equipment
Language	English