Philips Avalon FM20, Service Manual

Page: 94 / 260

7 Testing and Maintenance
94
CAUTION
The tip of the spiral electrode is sharp. Take care not to injure your fingers.
or
Cut off the plastic tip of the fetal scalp electrode (containing the spiral and reference electrodes)
from the end of the wires. Strip the insulation from the end of the wires, and connect them to a
patient simulator.
NOTE
We do not recommend the use of a specific patient simulator. The use of a patient simulator does not
allow checking the specification of the ECG-functionality; it allows only a check of general function.
Result: the
DFHR
x
Leads Off
INOP should disappear.
Viewing the ECG wave: when configured, you can view the DECG wave on the screen, and any noise
will be visible as additional verification of the effectiveness of the test.
If the test results are not as outlined above, repeat the test with another ECG transducer. If this does
not solve the problem, try the following:
•
Check all connections.
• If the
DFHR
x
Leads Off
INOP is still displayed, the DECG adapter cable may be defective. Replace
the adapter cable.
If the problem persists, replace the transducer.
Testing the Patient Module (M2738A)/Toco+ Transducer (M2735A): MECG Mode
1
Switch on the monitor and the recorder.
2
Connect the patient module or Toco
+
transducer to the fetal monitor.
3 Attach the MECG adapter cable M1363A to the red color-coded socket on the patient module or
Toco
+
transducer