Philips Efficia CM Series - BIS Monitoring Intended Use and Principles

Mainstream CO2 Accuracy Test
Performance Verification Testing
2-20 Efficia CM Series Repair Guide
Mainstream CO
2
Accuracy Test
The CO2 Test menu displays the following information about the Mainstream CO
2
module:
• Part number
• Serial number
• Hardware version
• Firmware version
• Total usage time
This test checks the performance of the Mainstream CO
2
sensor.
4
Allow the LoFlo module to warm up.
5
After warm-up is complete, connect the calibrated flow meter to the
exhaust port of the module.
6
Verify that the flow rate is 50 ml/min ± 10 ml/min. If the measured flow
rate is outside the specified limits, remove the LoFlo module from use and
contact service.
1
Ensure that CO
2
is not in Standby mode (when the monitor is in Display
Waveform mode, Standby is displayed in the CO
2
waveform pane).
If necessary, turn on the CO
2
module by opening the CO2 Menu and
setting CO2 On/Standby: to On.
2
Open the Maintenance options in the Diagnostics Menu. See “Accessing the
Diagnostics Menu and Maintenance Options” on page 2-8.
3
Select the CO2 Test button.
The CO2 Test menu appears.
4
Connect the CO
2
sensor to the monitor.
Sensor warming up. is displayed.
5
Verify that the Amb. Pressure (mmHg) and Gas Temperature (°C) values are
accurate.
If the values are incorrect, enter the correct values.
6
When the Zero button is enabled, select it and wait for the zero to
complete.
7
Connect the gas mixture to the adapter and set the flow rate to 2.0 – 5.0
l/min.