Operation Preparations
4-7
1) Environment:
Check whether there is other electric equipment in the surrounding environment, such as electrosurgical
equipment, ultrasonic equipment radiological equipment and so on. These equipments may cause
interference and switch off these equipments when necessary;
The room is required to keep warm (not lower than 5ā) to avoid the EMG interference caused by cold.
2) Power Supply:
When the AC power supply is used, please check whether the power cable has been connected to the
unit well, and the grounded three-phase socket should be used;
3) Earthing:
Whether the earthing lines have been connected correctly and tightly;
4) Leads:
Check whether the pins of the leads have been connected well and avoid the lead wires being close to
the AC power cord; check whether the lead wires have been connected with the corresponding
electrodes correctly;
5) Electrodes:
Check whether the electrodes have been connected well; whether the electrodes and particular the chest
electrodes contact with each other;
6) Record Paper:
Ensure that the record paper is adequate and the loading is correct.
7) Examinee:
Check whether the hand and foot of the examinee contact with the metal parts of the bed, whether the
environment of the examination room is comfortable, whether the examinee is too nervous, require the
examinee to relax the body and keep quiet respiration.
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