GE Eagle 1000, Servicing Instructions

Page: 73 / 148

GE Medical Systems EAGLE 1000
Page 73
Information Technologies
Servicing Instructions 227 468 01 Rev. G
3.2.4.4 Testing alarm limits, recorder start, audible alarm activation
Select lead I for channel 1 and lead II for channel 2.
Enable the device monitoring system, the yellow indicator (9) must be disabled.
Switch the ECG pulse generator to a heart rate of 180.
The HR alarm should appear on the screen, the alarm sounds, the red LED (7) illuminates
and the recorder starts an alarm printout of approx. 20 s duration.
Starting from Main Menu, press the F5 [Next Menu] button 2 times and actuate F2 [Alarm
Tone ON] for [Alarm Tone OFF] to appear.
The audible alarm should now be silenced, the LED (6) illuminated.
Press the Silence Alarm button (8) once, the red LED (7) goes off. Press the button (8)
again, the yellow LED illuminates, and the message “Alarms OFF” appears on the screen.
The alarm recording must contain the following information.
2 ECG waveforms, 1mV reference pulse, leads selected, date, time of day, ECG sensitivi-
ty, filter setting and vital value block.
Set the HR on the multifunction pulse generator to 60/s.
Enable the audible alarm with 2 times button F5 [Next Menu] and pressing F2
[ Alarm Tone OFF ] for [ Alarm Tone ON ] to appear.
3.2.4.5 Testing the input amplifier offset
Power off the ECG pulse generator.
Select sensitivity 5mm/mV, 10mm/mV and 20mm/mV in sequence. The baseline offset
should not exceed 4mm.
3.2.4.6 Testing pacing detection
Multifunction simulator settings:
Enable simulator.
Connect an external resistance of 10kohm (1%) to the simulator between the BNC con-
nector (HI LEVEL OUT) and V4 port and select simulator setting Pace and 2mV.
Switch channel 1 of the monitor to lead II. Select display sensitivity 5mm/mV.
Black bars should now be superimposed over the pacemaker pulses.