3 Basic Operation
41
When you connect a transducer or sensor:
• The appropriate measurement is shown on the display. For fetal measurements using an Avalon
CTS system, the symbol appears additionally next to the measurement label, indicating that
the measurement is being made by a cordless transducer.
• Fetal heart rate measurements are labeled in the order in which you plug in the transducers for
those measurements. It does not matter which fetal sensor socket you use, as the monitor allocates
a channel automatically. For instance, when monitoring triplets, the first transducer you connect is
automatically allocated a channel, and the measurement is labeled
FHR1, the second FHR2, and the
third
FHR3. See also chapters “Monitoring Twin FHRs” on page 113 and “Monitoring Triple
FHRs” on page 121.
• When you touch a measurement numeric on the screen, the setup menu for that measurement
opens. The fetal sensor socket to which the transducer for this measurement is connected is
identified by the transducer position indicator in the blue setup menu header:
for FM20/30;
for FM40/50.
• The blue Finder LED on a wired fetal transducer illuminates when you touch the measurement on
the screen, allowing you to identify the corresponding transducer.
1 Measurement label
2 Cordless measurement symbol
1 Finder LED
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