Revision B 120 Series Maternal/Fetal Monitor 6-11
2015590-001
Functional Checkout Procedure: FECG Test
FECG Test
This portion of the functional checkout procedure ensures the integrity of the FECG
circuitry and the heart rate channel of the recorder.
1. Connect the simulator’s ECG sub-cable to the
FECG connector on the monitor
adapter cable.
2. Connect the simulator’s UA sub-cable to the
UA receptacle on the monitor.
3. Set the switches on the Model 325 Input Simulator according to Table 6-1.
4. If not already on, depress the monitor’s
Record pushbutton.
5. Turn the simulator’s
Manual Adjustment knob fully counterclockwise and
verify the following on the monitor’s display:
The FHR1 value is 30 BPM.
The FHR1 mode is FECG.
The FHR1 heartbeat indicator ( ) flashes at a rate of 30 times per minute.
The UA mode is TOCO.
6. Depress and hold the monitor’s
UA Reference pushbutton and release when the
UA value shows 10 relative units. Verify the following on the monitor:
The UA value is referenced to 10 relative units.
The recorder prints a continuous line at 10 relative units on the bottom grid
of the strip chart paper.
The recorder prints the messages FECG, TOCO, and UA REF on the strip
chart paper.
7. Turn the simulator’s
Manual Adjustment knob to input an FECG signal of
approximately 120 BPM. Verify the following on the monitor:
The FHR1 value is 120 BPM.
FHR1 heartbeat indicator ( ) flashes at a rate of 120 times per minute.
The ECG “beep” volume of the rear panel speaker can be increased or
decreased using the left pair of Volume pushbuttons. (Set the volume to
the desired level.)
The recorder prints a continuous line at 120 BPM on the top grid of the
strip chart paper.
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