Philips IntelliVue MP70 Service Manual

9 Anesthetic Gas Module Checking and Calibrating the Anesthetic Gas Module
190
Total Flowrate Check and Adjustment in Purge Mode
To make the flowrate measurements and any necessary adjustment:
1 Enter the service mode of the monitor and let the Philips M1026A Anesthetic Gas Module
complete the warm-up phase (the
GA WARMUP INOP disapears).
2 In the Setup Gas Analyzer menu select Service Window then select Calibration to
access the
Gas Analyzer Calibration window.
3 Enter the Setup Gas Analyzer menu and select Start Flow Cal.
4 Select Flow Rate.
5 Select Purge for purge flow (310 ml/min).
6 Connect a flowmeter to the exhaust port of the Philips M1026A Anesthetic Gas Module.
7 Note the actual flowrate by following the instructions accompanying the flowmeter. If the actual
flowrate is outside the tolerance, it must be adjusted. If no adjustments are required, select
Stop
Flow Cal
.
Flowrate
Adjustment
8 Remove the Philips M1026A Anesthetic Gas Module top cover (see “The Top Cover” on
page 230)
9 Correct the flowrate by adjusting potentiometer R125 on the Main PC board until the required
value is achieved.
Flowrate
Calibration
10 If you have made adjustments you must save the settings. Therefore select Store Flow Cal and
confirm when prompted.
The system then runs through various flowrates and switches the pump off before it saves the
values internally.
The flow display in the
Calibration window reflects these changes and the status “Flow Cal
Stored” appears.
11 Disconnect the flowmeter from the exhaust port.
Measurement Path Flowrate Check and Adjustment
The flowrate of the measurement path is checked using a test fixture in the form of a modified
watertrap. In order to perform the flow rate check, the following equipment is required:
• Flow Split Test Tool M1026-60136
• Electronic Flowmeter M1026-60144
NOTE 1 Check that the test fixture is still valid for use. It must be less than two years old. The test fixture is
labelled with a “Received” date that needs to be filled in when the test fixture is received.
2 The flow value that is labelled on the test fixture is to be used to perform the measurement path
flowrate check. It is only valid for this test fixture.
3 Check the test fixture visually for leaks. Regularly perform a leakage check with the test fixture
attached instead of the watertrap. Block both lines (drainage and measurement) at the same time
Total Flowrate in Purge Mode Tol er an ce
310 ml/min +/- 15 ml/min

Philips IntelliVue MP70 Specifications

General

Brand	Philips
Model	IntelliVue MP70
Category	Medical Equipment
Language	English