3-1
Chapter 3 Operation Preparation
Only use the ECG cable or other accessories provided by Comen.
The accessories of other types may damage the equipment or affect
the performance and safety of the equipment.
3.1 Connect the Power Cord and Ground Lead
Use the three-wirereceptacle with protective grounding and the
grounding of the receptacle should be kept well. Do not open the
housing of the equipment when the AC power supply is connected.
If there is doubt for the integrality for the protective ground lead,
please use the built-in battery for the power supply.
If the use of the instrument is affected by equipotential grounding,
contact the Company’s After-sales Service Department or agents.
1) Use the AC Power Supply
First check whether the AC power supply complies with the requirements:
Voltage: 100-240V~
Frequency: 50Hz/60Hz
Power: 40VA
Then plug the power cord into the AC power supply socket on the back panel of
the equipment, and insert the power cord plug into the three-wirereceptacle.
2) Use the Built-in Battery
When this equipment is delivered to the user, the built-in rechargeable lithium
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