Revision D 250 Series Maternal/Fetal Monitor 3-3
2020551-001
Installation: Tools Required
Tools Required
Refer to “Preventative Maintenance Inspection Report” on page 4-58 for a list of
required tools.
Connections
Fetal Acoustic Stimulator
This connector is provided for connection to a Corometrics Model 146 Fetal
Acoustic Stimulator.
Remote Marks Connector
This connector is provided for connection to an optional Corometrics Remote Event
Marker. A Corometrics Remote Event Marker is used to annotate the strip chart
recorder paper with a mark.
The printed mark can be configured as , commonly used to record an “event”; or
it can be configured as , commonly used as an indication that the mother has
perceived fetal movement. The monitor is factory set with the mark configured as an
arrow. Refer to “Install Options Screens” on page 3-14 for more information on
selecting the mark. Refer to the instructions accompanying the Remote Event
Marker for more information about using the accessory.
ECG Out Connector
This 3-conductor stereo phone jack permits recording of FECG or MECG trends on
an external recorder. ECG signals are output at +80 dB with a bandwidth of 1.0 to
100 Hz. MECG signals are output at +60 dB with a bandwidth of 0.5 to 40 Hz. The
output level from this port is 10 V/mV for FECG and 1 V/mV for MECG.
CAUTION
JACK SIZES—Service personnel who are familiar with other
Corometrics monitors should be aware that the stereo phone jack
used on the 250 Series Monitor is a different size than that used on
previous monitors.
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