Philips IntelliVue MP70 Service Manual

3 Testing and Maintenance Tests
42
12
Open the valve on the calibration gas to allow CO
2
gas to flow into the extension. Allow the value
to stabilize before the start of the calibration. Leave the valve open until the instrument gives a
prompt that gas can be removed.
13 The extension calibrates and prompts when calibration is successful.
Calibration Verification
1 Reopen the 5% gas valve and allow the value to stabilize.
2 Check that the value displayed on the monitor is correct within the tolerance (see step 2 above).
3 Disconnect the 5% calibration gas and connect the 10% calibration gas.
4 Open the valve on the flow regulator to allow 10% CO
2
gas to flow into the extension. Allow the
value to stabilize.
5 Check that the value displayed on the monitor is correct within the tolerance (see step 6 above).
If one or both values are not within tolerances, you must exchange the measurement server extension.
Reset Time Counters
You must check the time counters on the sidestream CO
2
extension before calibrating the instrument.
As well, when parts are replaced, the appropriate counters must be reset to zero.
The counters for CO
2
pump, IR Src and Last Cal are displayed in the status line. The values are
updated when entering the
Setup CO
2
menu.
Observe the following guidelines:
• When calibrating the CO
2
extension, if no parts have been replaced, check the displayed values of
Reset PumpOpTime and Reset IRSourceTime selections to make sure that they are
within suggested guidelines for use (15, 000 hours of continuous use). If the counter time is greater
than 15, 000 hours, replace the appropriate part. See Repair and Disassembly for details.
• When calibrating the CO
2
extension, if parts have been replaced, reset the appropriate values using
the
Reset PumpOpTime and Reset IRSourceTime selections. See Repair and Disassembly
for details.
Resetting the PumpOpTime generates the INOP: “CO
2
OCCLUSION”. To clear this INOP you
must perform a flow check and store the flow in service mode (select
Store Flow).
Table 1 Documenting CO
2
Test Results
Test Expected Test Results
Barometric Pressure
Check
x1 = difference between the reference pressure and the
measured ambient pressure displayed on the monitor
(x1<12 mmHg)
Leakage Check parts
1 and 2
x2 = value of part 1 leakage check on flowmeter
(x2< 4.0 ml/min)
x3 = value of part 2 leakage check on flowmeter
(x3< 4.0 ml/min)

Philips IntelliVue MP70 Specifications

General

Brand	Philips
Model	IntelliVue MP70
Category	Medical Equipment
Language	English