Mindray PM-9000, Operation Manual

Page: 287 / 378

CO
2
Monitoring
17-11
„ ZERO CAL This option allows you to zero the CO
2
module, so as to
eliminate the adverse affect of the baseline drift in the
process of measurement. Perform zeroing prior to
concentration calibration.
„ CONFIRM CAL This option allows you to confirm the calibration of the CO
2
module.
Calibration Procedure
1. Verify the module enters the ready-to-measure status.
2. Connect a gas bottle with the CO
2
sensor connector on the monitor as shown
below.
Figure 17-6 Connections for Calibration
3. Fill the gas bottle with a standard gas of certain CO
2
content (3%, 4%, 5%, 6%
and 7%), and input the gas to the monitor.
4. Open the CO2 USER MAINTAIN menu, and set the CO
2
field to a value,
which is the same with the CO
2
content of the gas bottle.
5. When the CO2 USER MAINTAIN menu displays the currently measured CO
2
content, wait until a stable reading is indicated, and then select the CONFIRM
CAL option to start calibrating the CO
2
module.
6. If the calibration succeeds, “CALIBRATE SUCCESS!” will be displayed in the
CO2 USER MAINTAIN menu. If fails, “CAL FAIL, TRY AGAIN!” will be
displayed, and re-calibration is required.
7. Select the EXIT option to exit the CO2 USER MAINTAIN menu.
Monitor
Gas bottle
T-shape connector
opening to the
atmosphere
Decompression
valve
Tube