Mindray WATO EX-65, Operator'S Manual

Page: 104 / 276

7-6
To calibrate at 21% O
2
, do as follows:
1. Make sure that the system is Standby. If not, press the key and then select [
Ok
]
from the pop-up menu to enter standby status.
2. Select the [
Maintenance
] shortcut key → [
O2 Sensor Cal. >>
] → [
21
%
O2 Cal. >>
] to
open the [
O2 21% Cal
.] menu.
3. Remove the O
2
sensor from the breathing system and leave it exposed to room air for
two to three minutes. For details about how to disassemble the flow sensor, refer to
14.2.1 O2
Sensor.
4. Select [
Start
] from the menu to start to calibrate at 21% O
2
. The screen prompts
[
Calibrating
].
5. During the calibration, if you select [
Stop
], calibration is stopped. Then the message
[
Calibration Stopped! Calibration is unfinished.
] is displayed. This indicates invalid
calibration instead of calibration failure.
6. After a successful calibration, the screen shows [
Calibration Completed!
]. Otherwise,
the message [
Calibration Failure! Please try again.
] is displayed. In this case, you
need to do the calibration again.
7. Select to exit the current menu.
7.5.2 100% O2 Calibration
NOTE
z
If the calibration fails, check for technical alarm and troubleshoot it if there is.
Then do the calibration again.
z
In case of repeated calibration failures, replace the O
2
sensor and do the 21% O2
calibration again. Calibrate at 100% O2 again after 21% O2 calibration is
completed. If it still fails, contact your service personnel or us.
To calibrate at 100% O
2
, do as follows:
1. Make sure that 21% O
2
calibration is already completed successfully and that no [
O2
Supply Failure
] alarm occurs.
2. Make sure that the system is Standby. If not, press the key and then select [
Ok
]
from the pop-up menu to enter standby status.
3. Select the [
Maintenance
] shortcut key → [
O2 Sensor Cal. >>
] → [
100% O2 Cal. >>
]
to open the [
O2 100% Cal.
] menu.
4. Make sure that the patient is disconnected from the system.