3-4 250cx Series Maternal/Fetal Monitor Revision C
2036946-001
Controls, Indicators, and Connectors: Front Panel Description
E Mark [Offset] Button The Mark [Offset] button is a multi-function button.
Mark: Pressing this button prints an event mark on strip chart paper (on the
bottom two lines of the top grid).
Offset: When the Heart Rate Offset mode is enabled, pressing and holding this
button shifts the secondary FHR trend +20 bpm for visibility purposes. Refer to
“Fetal Heart Rate Offset” on page 5-11.
F UA Reference Button The UA Reference button sets a baseline for uterine activity pressure monitoring.
Refer to Chapter 6, “Uterine Activity Monitoring”.
G Paper Advance Button Pressing this button advances chart paper at a rate of 40 cm/min for as long as the
button is held down.
H Record Button The Record button selects one of three recorder states: on, maternal-only mode, or
off. Refer to Chapter 11, “Recorder Modes”. Factory default is OFF.
I Power Indicator The indicator lights green when the monitor is turned on.
J Record Indicator Indicator Status Recorder Status
on on
off off
three short flashes maternal-only mode
every 5 sec
flashes on and off error condition
K Light Button Illuminates the strip chart paper for night time visibility. Factory default is ON.
L Recorder Door Latch Opens the strip chart recorder door to add, remove, or adjust the paper.
M Power Switch Moving the switch to the on position (I) turns the monitor on; moving the switch to the
off position (O) turns the monitor off.
N Strip Chart Recorder Annotations and trends are printed on the strip chart paper. Two paper styles are
available. Refer to Chapter 4, “Setup Procedures”, for instructions on loading strip
chart paper into the recorder. Refer to Chapter 11, “Recorder Modes” for additional
information about trends and annotations.
O MATERNAL NIBP Connector Connect a pneumatic hose and blood pressure cuff assembly to this black twin lumen
receptacle.
P MATERNAL SpO
2
Connector Connect a 250cx Series MSpO
2
intermediate cable to this royal blue receptacle. Use
only Nellcor Maternal Oxygen Saturation Sensors if Nellcor technology is installed in
your monitor, Masimo Sensors if Masimo technology is installed in your monitor, or
Ohmeda Sensors if Ohmeda technology is installed in the monitor.
Q FECG/MECG Connector Connect an FECG cable/legplate or MECG cable plug to the FECG/MECG receptacle.
Cables with rectangular plugs connect directly to the FECG/MECG receptacle. Cables
with round plugs require an FECG/MECG adapter. Refer to “MECG Ordering
Information” on page 18-5 for the adapter part number. This adapter is used for dual
ECG monitoring as well. The adapter branches into two cables, each with a round
receptacle at the end: one branch is labeled MECG; the other branch is labeled FECG.
Front Panel
# Name Description
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