Philips 50 T Series, Service Manual

Page: 23 / 105

Testing the Parameter Signals
Chapter 3 - Tests and Error Messages
Testing the Parameter Signals
The parameter test checks the signal path to and from the transducer sockets,
but not the transducers themselves.
1. Switch on the monitor, the recorder and the telemetry receiver.
2. Connect the appropriate transducer to each socket on the transmitter.
3. Standing within view of the monitor, press the Nurse Call Button on
the transmitter and switch on the transmitter simultaneously. The test
runs while the Nurse Call is pressed.
If the response is different, see troubleshooting flowcharts, Chapter 4.
Signal Correct Monitor Response
US
125
is displayed and printed.
Signal Quality Indicator is green.
Fetal heartbeat is heard from the loudspeaker.
Toco A triangle signal with an amplitude of
40
units is
displayed and printed.
Each cycle lasts for 12 seconds.
DECG
150
is displayed and printed
Signal Quality Indicator is green.
Fetal heartbeat is heard from the loudspeaker.