④F④Alarm on/off status
④Alarm on
④Alarm off
（2（Data Section
FHR 1 Data of Ultrasound Transducer I ④ 3-digit data, it is in green color under normal
status, it will be in red when alarm occurs; it displays “―――” when there is no data.
FHR 2 Data of Ultrasound Transducer II: this data will show in twins monitoring mode, the
display format is the same with the FHR 1.
TOCO data ④Display the relative contraction data, ranging from 0-100, it will be 10 after
Auto Zero.
Fetal Movement Data ④Display Fetal movement numbers, it will be “―――” after Auto
Zero.
（3（Parameter Bar
This section displays important setting parameters: it contains alarm on/off status ④ alarm
upper limit④lower limit④alarm postpone time④print speed and print time.
（4（Indicate Bar
In this item, it includes system time④bed No.④gestational age and patient age.
（5（Wavefom Display Section
This section also be divided into 2 sections, FHR trend graph is displayed in the upper
section, TOCO waveform is displayed in lower section. FHR1 Trend is in green④FHR2 trend
is in Yellow(only displayed in twins monitoring)④the normal range of the fetal heart rate is
120-160bpm④which be showed in green on the screen.
Fetal movement mark “↑”④alarm mark ④event mark “↓” will also be showed in this section.
3.1.5 Buttons
There are several buttons of different functions on the front panel of fetal monitor. The diagram is
showed as Figure 3.4.
