GE Corometrics 250cx Series Service Manual

Revision C 250cx Series Maternal/Fetal Monitor 4-31
2036947-001
Maintenance: Uterine Activity Test
displayed accordingly and that the recorder prints a continuous line at the
corresponding value on the uterine activity channel of the strip chart paper.
8. Place the simulator’s UA Level switch at each of the level settings: 0, 10, 50, and
100 relative units. Verify that the UA value is displayed accordingly and that the
recorder prints a continuous line at the corresponding value on the heart rate
channel of the strip chart paper.
9. Place the simulator’s UA Mode switch in the IUP position and the UA Level
switch to 0 mmHg/kPa. Depress the monitor’s UA Reference button and verify
that the monitor and recorder reference to 0 mmHg/kPa. Verify the following
on the monitor:
 The UA value is 0 mmHg.
 The UA mode is IUP.
 The recorder prints a continuous line at 0 mmHg on the uterine activity
channel of the strip chart paper.
 The recorder prints the messages UA REF on the strip chart paper.
10. Place the simulator’s UA Level switch at each of the level settings: 0, 10, 50, and
100 mmHg. Verify that the UA value is displayed accordingly and that the
recorder prints a continuous line at the corresponding value on the uterine activity
channel of the strip chart paper.
11. Place the simulator’s UA Level switch to the RAMP position. Verify that the UA
value measures between approximately 0 and 100 mmHg and that the recorder
prints a ramp between the same values. Refer to figure “Uterine Activity Ramp”
on page 4-32.
12. Disconnect the Model 325 simulator’s UA cable from the UA input connector on
the front panel of the monitor. Verify the following on the monitor:
 The UA value and IUP are both blank.
 The recorder stops printing the uterine activity trace.
 The recorder prints the message UA INOP on the center margin of the strip
chart paper after approximately 20 seconds.
Table 6. Uterine Activity Test Simulator Settings
Section Switch Setting
UA
Pattern Memory Off
Main LEVEL
Level 0 mmHg
Mode TOCO

GE Corometrics 250cx Series Specifications

General

Type	Fetal Monitor
Model	250cx Series
Manufacturer	GE Healthcare
Fetal Heart Rate Monitoring	Yes
Ultrasound Frequency	1 MHz
Recorder Speed	1, 2, 3 cm/min
Maternal Parameters	ECG, NIBP, SpO2
FHR Range	30-240 bpm
TOCO Range	0-100
Connectivity	RS-232
Power Source	AC Power
Display	Color LCD