Flow Rate Check; Pressure Sensor Test - Philips M1013A IntelliVue G1 Service Manual

4 Testing and Maintenance

Flow Rate Check

For this check, always measure the gas analyzer flow rate at the sample gas inlet. Measuring at the outlet
CAUTION
may lead to incorrect flow readings due to ripple on the gas flow.
Test Procedure:
• Connect sample line to the watertrap
• Connect a flowmeter to Luer-Lock connector of the sample line
Expected Result: Sampling rate is 200±20 ml/min
N O T E After warm up or zero the flow rate may be higher than 200 ml/min for about 30 minutes. Please wait
until the flow stabilizes.
In case the pump flow is out of the specified limits, it needs to be adjusted following the procedure
described in the section "Flow Rate Adjustment".
Test
Flow Rate Check

Pressure Sensor Test

Zero Pressure Test Procedure:
• Trigger a zero procedure (all necessary parameters) via the service host, watch it progress and wait
until it is finished (zero successful).
• Measure ambient pressure with independent digital barometer.
• Compare the ambient pressure measured with the digital barometer with the ambient pressure
measured by IntelliVue G1/G5 as shown by the VISIA tool.
Expected result: The deviation between the two measured values is < 10 mbar.
Amplification Pressure Test Procedure:
• Switch to the Pneum. tab on the VISIA tool.
• Set pump flow to off
• Switch valve setting to patient (default setting after startup of IntelliVue G1/G5)
• Connect digital pressure indicator and the leakage test kit. See Instructions for Use supplied with the
leakage test kit for details (M1013-9302B).
• Follow the leakage test kit IfU to apply negative pressure and wait until you have a pressure of
200 mbar below ambient.
• Wait until the negative pressure has stabilized.
• Compare the pressure measured with the digital pressure indicator with the sample cell pressure
measured by the IntelliVue G1/G5 as shown by the VISIA tool
Expected result: The deviation between the two measured values is < 10 mbar.
If any of the two pressure sensor tests fails, the unit needs to be exchanged.
64
Performance Assurance Tests - Checking and Calibrating the Gas Analyzer
Expected Test Results
Sampling rate is 200±20 ml/min