Operation Preparation
3-9
familiar with the performance of the equipment and the operation methods must
be mastered and the cautions and warnings; following inspection procedures are
recommended before power on.
1) Environment
Check whether there is other electric equipment in the surrounding environment,
such as ESU, ultrasonic equipment, radioactive equipment etc, which may
generate interference. Switch off these equipments when necessary;
The room is required to keep warm (not lower than -20ā) to avoid the EMG
interference caused by cold.
2) Power Supply
When the AC power supply is used, check whether the power cord has been
connected well, and the receptacle used should be grounded three-wirereceptacle.
3) Grounding
Check whether the ground lead has been connected correctly and tightly;
4) Lead Wires
Check whether the lead wires have been connected well and avoid the lead wires
to be 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; check 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 and
whether the examinee is too nervous. Ask the examinee to relax the body and keep
quiet respiration.
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