GE Dash 3000 Service Manual page 243

ECG or BP calibration
2000966-542D
Functional and electrical safety checks: Functional Checkout procedures
NOTE
Only perform this test if the ECG or BP out signals from the previous
test are out of specifications.
To complete the ECG or BP calibration, connect a voltmeter to the
patient monitor.
1. Attach the analog output cable (pn 2000633-001) to the patient
monitor.
2. Connect a 5.5 digit precision voltmeter (such as HP34401A, or
equivalent) to the port pin to be calibrated (If ECG: Pin 7 = ECG
signal, Pin 3 = ground. If BP: Pin 6 = BP, Pin 5 = ground.).
3. Access the patient monitor's Service Mode.
4. Calibrate the ECG or the BP parameters as follows.
ECG calibration
Using the Trim Knob control, access the Service Mode menu starting
from the Main Menu.
1. Select MORE MENUS > MONITOR SETUP > SERVICE MODE.
2. Enter password using the Trim Knob control to select the day and
month from patient monitor screen with leading zeros. (e.g. July 4 =
0407).
3. Select CALIBRATE > CAL ECG ANALOG OUT > SET ECG LOW.
4. Adjust the count for –9.0 V ± 5 mV on the meter and press the Trim
Knob control.
5. Select SET ECG HIGH.
6. Adjust the count for +9.0 V ± 5 mV on the meter and press the Trim
Knob control.
7. Select SET ECG ZERO.
Adjust the count for 0.0 V ± 5 mV on the meter and press the Trim
Knob control.
8. Select CONFIRM ECG CAL to confirm or abort the calibration.
BP calibration
Using the Trim Knob control, access the Service Mode menu starting
from the Main Menu.
Dash 3000/4000/5000
022A
8-43