MONITOR TESTING
38 Model 7600/7800 Operation Manual
14.0 MONITOR TESTING
CAUTION: Under normal operation, no internal adjustment or calibration is required. Safety tests should be
done by qualified personnel only. Safety checks should be performed at regular intervals or in accordance with local
or governmental regulations. In the event that service is necessary, refer to the Service Manual for this equipment.
14.1 Internal Test
Turn on the monitor by pressing the front panel Power On/Standby key. Listen for three audio beeps. Press the
DISPLAY MENU touch key from the main menu. Next, press the TEST MENU touch key. Press INTERNAL
TEST touch key. Selections are OFF and ON. When turned ON, the INTERNAL TEST function generates a 1mV
pulse at 70 BPM, causing a waveform and a 70 BPM indication on the display and a signal at the rear panel stereo
jack and BNC connector. The INTERNAL TEST verifies the internal functions of the monitor. You should do this
each time you begin monitoring a patient. If the following indications are not present, contact qualified service
personnel.
To test for visual and audio alarms:
If the alarms are paused or muted, press the key to turn alarms on. Unplug the patient cable. Check that the
LEAD OFF message is displayed and the audio alarm is on. With INTERNAL TEST ON, check for the following:
1) LEAD OFF message disappears, and 2) Monitor starts counting QRS.
14.2 ECG Simulator
The Model 7600/7800 has an integrated ECG simulator that is used to verify the integrity of the patient cable, lead
wires and electronic circuits involved in the processing of the ECG signal.
Turn on the monitor by pressing the front panel Power On/Standby key. Listen for three audio beeps. Plug in the
patient cable. Attach the four lead wires to the simulator terminals that are located on the right side panel of the
monitor. The terminals have four color-coded labels for easy identification. The simulator generates an ECG
waveform and heart rate range between 10-250 BPM (user selectable).
ECG Simulator Operation
To turn the simulator on and set the heart rate, follow the procedure below:
1. Press the DISPLAY MENU touch key from the main menu. Next, press the [TEST MENU] touch key.
2. Press the SIM RATE touch key to turn the simulator on and toggle through the heart rate options.
3. Press the keys ↑FINE TUNE↓ to change the heart rate in increments of one.
4. Check that the displayed heart rate is equivalent to the selected Simulator Rate. Check that two ECG traces
are displayed.
NOTE: When the simulator is on, the SIMULATOR ON message is displayed in yellow on the screen.
To Next Page
Loading...
Need help?
General
