Duo™ Service Manual 0070-10-0604-01 2 - 3
Calibration and Performance Verification Calibration and System Checks
2.4 Calibration and System Checks
2.4.1 Device Appearance and Installation Checks
Inspect the Duo monitor to ensure that:
• The outer housing is clean and has no scratches or cracks
• When the device is gently shaken, there are no loose components
• All keys are smooth and free for operation
• Labels are complete, clean, and accurate
• All connectors/accessory modules are installed securely
Ensure monitor is securely fastened to its rolling stand (if used)
2.4.2 Maintenance Functions/Non-Monitoring Modes
• When entering the maintenance functions/non-monitoring mode, the monitor will perform
a self-test, however the verification of functional LEDs will not be displayed
• In the maintenance mode, the standby mode will not be active
• In the maintenance mode, the auto-shutoff will activate if no key is pressed for a period of
15 minutes.
2.4.3 Unit of Measure Mode
The unit of measure mode is used to change between mmHg and kPa. To access the Unit of
Measure mode:
1. Turn the monitor off.
2. Simultaneously press and hold the POWER and CLEAR buttons.
3. Press the CLEAR button to cycle through the unit of measure choices.
4. Once the desired unit of measure is displayed, turn the Duo off to save that setting.
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