Nihon Kohden Corporation ZM-531PA 用户手册

50 

Operator’s Manual  ZM-520PA/521PA/530PA/531PA

To prevent the patient from pressing the keys on the transmitter during monitoring, you can lock 
the keys.

Press the 

▼

 and 

▼ keys at the same time and hold for more than 3 seconds. The key lock screen 

appears.

When there is no key operation for one minute after locking the keys, the display turns off.

To unlock the keys:
Press the 

▼

 and 

▼ keys at the same time and hold for more than 3 seconds.

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