Welch Allyn PROPAQ CS - Manual (Page 49)

Service Manual Calibration 45
5. Open the monitor.
6. Disconnect P1 (expansion connector cable) from the Analog Board and open the front
chassis approximately 90 degrees.
Note To disable the alarms while performing the calibration procedures:
press SETUP > ALL ALARMS > YES to remove the bell symbol from the
display
To inhibit the Apnea alarm, turn off Respiration monitoring:
press ECG/RESP > MORE and set RESP to OFF