Patients eat dinner at around 7 pm (or before going to bed), and start wearing equipment after washing at around 8: 30.

Open the box cover, take out the cotton pajamas and unbutton the three buttons on them. As shown in the figure, put the instrument on the back and adjust the position. Fasten the big button in the middle of the front and tighten the elastic band at the back.

Connect the lead and the chest strap, and the tightness of the chest strap should be one finger (with legend).

Turn on the power switch under the big button in front.

Turn on the switch of YH2000 polysomnography monitor.

Enter or select "number of channels" (12, 7, 4) in the YH2000 polysomnography, then press "confirm", "say goodbye" and then press "confirm".

Enter or select the date (year, month and day) and the patient's name (only the first letter of Chinese phonetic alphabet) and then press "Confirm"; enter or select the patient number (usually serial number) and then press "Confirm".

Put the recording paper in the recording box and make it above the center of the cross-shaped lead and magnet.

The patient can go to bed without taking off the instrument.

After the patient falls asleep, the recording paper of the limbs leads and the nose and mouth will automatically move, but the top leads will not automatically record, so the manual recording key must be pressed every 30 seconds.

Don't take off the instrument during the whole recording. If you need to turn over when you wake up at night, turn over without moving the instrument.

Get up before 7 o'clock in the morning, take off the instrument and tear off the recording paper. Do not fold or damage it.

Send the recording paper back to the doctor's office for processing and analysis.

These are the steps to use the pulse multi-channel sleep monitor. Please follow the doctor's instructions.