Mindray WATO EX-65, Operator'S Manual

Page: 113 / 276

8-5
8.3.2.4 Set Gas Compensations
WARNING
z
Make sure that the appropriate compensations are used. Inappropriate
compensations may cause inaccurate measured values and result in misdiagnosis.
1. Access the [
Gas Module Setup >>
] menu.
2. Set the following compensations based on the actual conditions:
‹ [
O2 Comp
]
‹
[
N2O Comp
]
‹ [
Des Comp
]
The total of the concentrations of the above three gas compensations cannot be greater than
100%.
8.3.2.5 Set Humidity Compensation
The CO2 module is configured to compensate CO2 readings for either Body Temperature and
Pressure, Saturated Gas (BTPS), to account for humidity in the patient’s breath, or Ambient
Temperature and Pressure, Dry Gas (ATPD).
1. Access the [
Gas Module Setup
] menu and select [
Humidity Comp
].
2. Select either [
Wet
] for BTPS or [
Dry
] for ATPD, depending on which compensation
applies. ,.
For CO
2
, the humidity compensation can be set to [
Wet
] or
[Dry
]:
1. Dry: 100 / %) ( ) (
2 2
amb co
P vol CO mmHg P
× =
2. Wet: 100 / ) 47 ( %) ( ) (
2 2
− × =
amb CO
P vol CO mmHg P
where,
2
CO
P
= partial pressure, %
vol
= CO
2
concentration,
amb
P
= ambient pressure, and
unit is mmHg.
For CO2 module, humidity compensation is switched on or off based on the actual situations.
8.3.2.6 Restore Defaults
Select [
Defaults
] from the [
Gas Module Setup >>
] menu. Then all the menu options except
[
Working Mode
] are restored to the factory default configurations.