Lepu Medical AIView 12V, Руководство оператора, Страница: 164 / 292

15-11
Options: 1b (calculate once every respiration cycle), 10s
(calculate once every 10 seconds) and 20s (calculate once
every 20 seconds).

[Balance Gas] : set the balance gas in patient's respiration air
flow.
There are three kinds of selecta
ble balance gas: ―Air‖, ―N2O‖
and ―He‖, namely: air, nitrous oxide and helium. If no specific
balance gas is given, the balance gas can be set as ―Air‖.

[Gas Compensation] : adjust the concentration of the
compensating gas in patient's respiration air flow. Generally, the
compensating gas is Oxygen, so it can be called oxygen
compensation concentration. Setting range: 1~100; Unit: %;
Default value: 16.

[AG] : set whether adding the anesthetic gas to patient's
respiration air flow and the concentration of anaesthetic gas.
Setting range: 0.0~20.0; Unit: %; Default value: 0.
The default status is not adding anaesthetic gas, that's to say,
the concentration is 0.0%.

[Atmospheric Pressure] : set ambient atmospheric pressure.
Setting range: 400~850; Unit: mmHg.
It can be determined by barometer or the ambient altitude.
Altitude can be used to determine the typical barometric
pressure if a barometer is not available, refer to
Appendix D
Typical Pressures and CO2 Readings at Altitudes for details.
15.6.2 Setting CO
2
Alarm Properties
To set CO
2
alarm options, follow the steps below:
1. Enter CO
2
alarm setup screen in either of the following ways:

Select the CO
2
parameter area
→
press the [Alarms]
button.

Press the [Alarms] quick key
→
select the [CO
2
] tab.

Press [Main Menu]
→
[Alarms], select the [CO
2
] tab.
2. Set alarm properties as desired.
15.7 Measurement Limitations
The following factors may influence the measurement accuracy:

Leaks or internal venting of sampled gas.
 Mechanical shock.

Cyclic pressure up to 10kPa (100cmH
2
O).