
How to use BFM-900L
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BFM-900L
FETAL MONITOR
(Ver 1.1)
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How to use BFM-900L
5.9 Alarm On/Off
1) By default the Alarm function is On when you turn the Power on.
2) When the values go over or below the Alarm range the beep will sound. The user can stop the
alarm. Press the “SILENCE” on the front of the device and the beep does not sound for 3
minutes. If you press the “SILENCE” two times, the beep does not sound until press the
“SILENCE”. “AL OFF” will be displayed during the silence situation.
- Display during the silence for 3 minutes(Below screen will be displayed in rotation)
- Display during the silence
5.10 Sound
(1) Doppler Sound : This is the Doppler sound of the fetus’s heartbeat. The volume of this sound
can also be adjusted using the Volume Key.
(2) Alarm Sound : When a measured HR value exceeds the set range the beep will sound
repeatedly.
(3) INFORMATION : When a probe is disconnected or the battery is low, or the printer door is
ajar, and when the printing paper is missing, a “ding dong” sound will repeat.
(4) The alarm sound and information sound cannot be adjusted.
5.11 AST(Optional)
This function is for waking up the baby. BFM-900L is designed to use AST to connect DOP 2
Probe connector. BFM-900L shows “AST” on the FHR2 area.
Press the button on the AST probe on the patient°Øs abdomen. It makes sound for waking up the
baby. Please do not close this device to the ear. It makes you harmful.
“DO NOT CLOSE THE DEVICE TO THE EAR!”