User's Manual Part 1

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2.2.7.2. Charging Instructions
2.2.7.2.1. Connecting and Disconnecting AC Power
Always connect the 1120 AC power supply to a properly grounded 3-wire power receptacle. If
the quality of the earth grounding is in question, use battery power for the monitoring system.
Avoid the use of extension cords. The 3880 Monitor and 3885-T Remote Tablet will
automatically switch to battery power when disconnected from AC Power. Always check the
battery charge level prior to disconnecting AC power to ensure there is sufficient battery power
for the procedure. If disconnected from AC power without a battery installed or a dead battery
installed, the 3880 Monitor will revert to factory default settings.
To connect the power supply, follow these steps:
3880 Monitor
1. Locate
3880 Power Input (1)
1122 - 3M (~10 ft) Shielded DC Cable (2)
2. 1120 MRI Power Supply (3)
3. Country Specific Power Cord (4)
4. Screw the male end of the 1122 Shielded Cable (2) directly into the 1120 MRI Power
Supply (3)
5. Attach the Country Specific Power Cord (4) to the MRI Power Supply (3)
6. Position the 1120 MRI Power Supply (3) outside the 1,000 Gauss line, or 10 feet (3
meters) from the MRI system when placed inside the MRI exam suite Zone IV.
7. Place the Country Specific Power Cord (4) into the designated AC power outlet.
8. Screw the female end of the 1122 Shielded Cable (2) directly into the power input
receptacle (1) on the rear of the 3880 Monitor
9. Check for a green /yellow power/charging indicator LED light on the front of the 3880
Monitor