User's Manual

F9, F9 Express Fetal & Maternal Monitor User Manual FTS-3 Fetal Telemetry System
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NOTE:
The working channel number used by a system cannot be duplicate with that used by a
device of the same type.
11.3 Technical Alarm Messages
When FTS-3 is connected to F9 series fetal/maternal monitor, the monitor gives technical alarms
for the situations that need the physicians to pay attention to during wireless monitoring, The
alarm messages are listed below.
Alarm Message
Cause Countermeasure
Medium Level
**Wireless US1
Transducer Battery
Low
The battery power is too low to
support further work of the
transducer.
Please charge the US1
transducer immediately.
** Wireless US2
Transducer Battery
Low
The battery power is too low to
support further work of the
transducer.
Please charge the US2
transducer immediately.
** Wireless TOCO
Transducer Battery
Low
The battery power is too low to
support further work of the
transducer.
Please charge the TOCO
transducer immediately.
** Base Station
Battery Low 
The battery power is too low to
support further work of the base
station.
Connect the base station to AC
power supply.
Low Level
Wireless US1 SIGNAL
LOSS
FHR1 signal is too weak for the
system to analyze.
Check if the Wireless US1
transducer is aimed at the fetal
heart; check if the patient moves
out of the base station RF
range, if the transducer is well