Shenzhen PM-9000 Express Manual del operador descargar pdf (Pagina 255)

18.5 Calibrating AG

Calibrate the AG module every year or when the measured value has a great deviation.

Tools required:

•

Gas bottle, with a certain standard gas or mixture gas. Gas concentration should meet

the following requirements: AA>1.5%, CO2>1.5%, N2O>40%, O2>40%, of which AA

represents an anesthetic agent.

•

T-shape connector

•

Tubing

•

Reservoir bag

Follow this procedure to perform a calibration:

Select MAINTAIN>> in SYSTEM MENU, enter USER KEY, then select CONFIRM

button. Then selecting GAS CALIBRATE >> in USER MAINTAIN menu opens the

GAS CALIBRATE menu.

Select VERIFY ACCURACY to check the airway and make sure that there are no

occlusions or leaks.

•

Vent the tubing to the air and check if the CUR RATE and SET RATE are

approximately the same. If the deviation is great, it indicates that there is an

occlusion in the tubing. Check the tubing for an occlusion.

•

The CUR RATE shall fall rapidly and the system prompt that the tubing is blocked.

Otherwise, it indicates that there are leakages in the tubing. Check the tubing for

leakages.

Connect the gas bottle, reservoir bag and the tubing using a T-shape connector as shown

in the figure below. Check the airway and make sure there are no leaks.

Open the gas valve and vent a certain standard gas or mixture gas into the tubing.

AG module

Reservoir bag

Gas bottle

Gas valve

Tubing

In the CALIBRATE menu, the concentration and flowrate of each measured gas are

displayed

•

If the difference between the measured gas concentration and the actual one is very

small, a calibration is not needed.

•

If the difference is great, you should perform a calibration. Select START CAL>>

to enter the calibrate menu.

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Shenzhen PM-9000 Express Manual del operador Pagina 255