GE Corometrics 250cx Series Service Manual page 190

Appendix G: Corometrics
2. Connect the 325 simulator's ECG cable to the MECG input of the adapter.
3. Use the Trim Knob Control to access the MHR/P Setup screen.
4. Set the MHR/P source to MECG.
5. Set the MHR/P high alarm limit value to 120 bpm.
6. Set the MHR/P low alarm limit value to 60 bpm.
7. Set the alarm volume to a level you can easily hear.
8. Exit the MHR/P Setup screen.
9. Access the Master Alarm Setup screen.
10. Access Install Options Screen 2.
11. Select Store Current to Hospital. Exit the service mode by selecting Restart at the bottom of the screen.
12. Set the switches on the 325 simulator according to Table G-1.
13. Using the simulator's Manual Adjustment knob, input an MECG signal of 119 bpm as indicated on the
monitor. Verify that there is no alarm tone sounding from the rear panel speaker.
14. Using the simulator's Manual Adjustment knob, increase the MECG rate to 120 bpm. Again, verify that there
is no alarm tone sounding from the rear panel speaker.
15. Using the simulator's Manual Adjustment knob, increase the MECG rate to 121 bpm. Verify the following on
the monitor:
• The following alarm tone is emitted from the rear panel speaker: alternating high/low tones until the
alarm condition is removed (following steps.)
• The MECG value flashes.
16. Depress the front panel Alarm Silence button and verify the following:
172
325 Simulator Setup and Use
TM
Table G-1: 325 Simulator Settings for Alarms Check
Section
FECG/MECG
GENERAL
2036947-001
Switch Name
Main
Rate
Mode
QRS Amplitude
QRS Polarity
Pattern Memory
© 2013 by General Electric Company. All rights reserved.
Setting
Rate
Manual
MECG
500 µV
+
Off